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tiny-consent/node_modules/es-abstract/test/tests.js

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'use strict';
var test = require('tape');
var forEach = require('foreach');
var is = require('object-is');
var debug = require('object-inspect');
var assign = require('object.assign');
var keys = require('object-keys');
var has = require('has');
var arrowFns = require('make-arrow-function').list();
var getInferredName = require('../helpers/getInferredName');
var assertRecordTests = require('./helpers/assertRecord');
var v = require('./helpers/values');
var diffOps = require('./diffOps');
var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || Math.pow(2, 53) - 1;
var getArraySubclassWithSpeciesConstructor = function getArraySubclass(speciesConstructor) {
var Bar = function Bar() {
var inst = [];
Object.setPrototypeOf(inst, Bar.prototype);
Object.defineProperty(inst, 'constructor', { value: Bar });
return inst;
};
Bar.prototype = Object.create(Array.prototype);
Object.setPrototypeOf(Bar, Array);
Object.defineProperty(Bar, Symbol.species, { value: speciesConstructor });
return Bar;
};
var testIterator = function (t, iterator, expected) {
var resultCount = 0;
var result;
while (result = iterator.next(), !result.done) { // eslint-disable-line no-sequences
t.deepEqual(result, { done: false, value: expected[resultCount] }, 'result ' + resultCount);
resultCount += 1;
}
t.equal(resultCount, expected.length, 'expected ' + expected.length + ', got ' + resultCount);
};
var hasSpecies = v.hasSymbols && Symbol.species;
var hasGroups = 'groups' in (/a/).exec('a');
var groups = function groups(matchObject) {
return hasGroups ? assign(matchObject, { groups: matchObject.groups }) : matchObject;
};
var testEnumerableOwnNames = function (t, enumerableOwnNames) {
forEach(v.primitives, function (nonObject) {
t['throws'](
function () { enumerableOwnNames(nonObject); },
debug(nonObject) + ' is not an Object'
);
});
var Child = function Child() {
this.own = {};
};
Child.prototype = {
inherited: {}
};
var obj = new Child();
t.equal('own' in obj, true, 'has "own"');
t.equal(has(obj, 'own'), true, 'has own "own"');
t.equal(Object.prototype.propertyIsEnumerable.call(obj, 'own'), true, 'has enumerable "own"');
t.equal('inherited' in obj, true, 'has "inherited"');
t.equal(has(obj, 'inherited'), false, 'has non-own "inherited"');
t.equal(has(Child.prototype, 'inherited'), true, 'Child.prototype has own "inherited"');
t.equal(Child.prototype.inherited, obj.inherited, 'Child.prototype.inherited === obj.inherited');
t.equal(Object.prototype.propertyIsEnumerable.call(Child.prototype, 'inherited'), true, 'has enumerable "inherited"');
t.equal('toString' in obj, true, 'has "toString"');
t.equal(has(obj, 'toString'), false, 'has non-own "toString"');
t.equal(has(Object.prototype, 'toString'), true, 'Object.prototype has own "toString"');
t.equal(Object.prototype.toString, obj.toString, 'Object.prototype.toString === obj.toString');
// eslint-disable-next-line no-useless-call
t.equal(Object.prototype.propertyIsEnumerable.call(Object.prototype, 'toString'), false, 'has non-enumerable "toString"');
return obj;
};
var es2015 = function ES2015(ES, ops, expectedMissing, skips) {
test('has expected operations', function (t) {
var diff = diffOps(ES, ops, expectedMissing);
t.deepEqual(diff.extra, [], 'no extra ops');
t.deepEqual(diff.missing, [], 'no unexpected missing ops');
t.end();
});
test('ToPrimitive', function (t) {
t.test('primitives', function (st) {
var testPrimitive = function (primitive) {
st.ok(is(ES.ToPrimitive(primitive), primitive), debug(primitive) + ' is returned correctly');
};
forEach(v.primitives, testPrimitive);
st.end();
});
t.test('objects', function (st) {
st.equal(ES.ToPrimitive(v.coercibleObject), 3, 'coercibleObject with no hint coerces to valueOf');
st.ok(is(ES.ToPrimitive({}), '[object Object]'), '{} with no hint coerces to Object#toString');
st.equal(ES.ToPrimitive(v.coercibleObject, Number), 3, 'coercibleObject with hint Number coerces to valueOf');
st.ok(is(ES.ToPrimitive({}, Number), '[object Object]'), '{} with hint Number coerces to NaN');
st.equal(ES.ToPrimitive(v.coercibleObject, String), 42, 'coercibleObject with hint String coerces to nonstringified toString');
st.equal(ES.ToPrimitive({}, String), '[object Object]', '{} with hint String coerces to Object#toString');
st.equal(ES.ToPrimitive(v.toStringOnlyObject), 7, 'toStringOnlyObject returns non-stringified toString');
st.equal(ES.ToPrimitive(v.valueOfOnlyObject), 4, 'valueOfOnlyObject returns valueOf');
st['throws'](function () { return ES.ToPrimitive(v.uncoercibleObject); }, TypeError, 'uncoercibleObject throws a TypeError');
st.end();
});
t.test('dates', function (st) {
var invalid = new Date(NaN);
st.equal(ES.ToPrimitive(invalid), Date.prototype.toString.call(invalid), 'invalid Date coerces to Date#toString');
var now = new Date();
st.equal(ES.ToPrimitive(now), Date.prototype.toString.call(now), 'Date coerces to Date#toString');
st.end();
});
t.end();
});
test('ToBoolean', function (t) {
t.equal(false, ES.ToBoolean(undefined), 'undefined coerces to false');
t.equal(false, ES.ToBoolean(null), 'null coerces to false');
t.equal(false, ES.ToBoolean(false), 'false returns false');
t.equal(true, ES.ToBoolean(true), 'true returns true');
t.test('numbers', function (st) {
forEach(v.zeroes.concat(NaN), function (falsyNumber) {
st.equal(false, ES.ToBoolean(falsyNumber), 'falsy number ' + falsyNumber + ' coerces to false');
});
forEach(v.infinities.concat([42, 1]), function (truthyNumber) {
st.equal(true, ES.ToBoolean(truthyNumber), 'truthy number ' + truthyNumber + ' coerces to true');
});
st.end();
});
t.equal(false, ES.ToBoolean(''), 'empty string coerces to false');
t.equal(true, ES.ToBoolean('foo'), 'nonempty string coerces to true');
t.test('objects', function (st) {
forEach(v.objects, function (obj) {
st.equal(true, ES.ToBoolean(obj), 'object coerces to true');
});
st.equal(true, ES.ToBoolean(v.uncoercibleObject), 'uncoercibleObject coerces to true');
st.end();
});
t.end();
});
test('ToNumber', function (t) {
t.ok(is(NaN, ES.ToNumber(undefined)), 'undefined coerces to NaN');
t.ok(is(ES.ToNumber(null), 0), 'null coerces to +0');
t.ok(is(ES.ToNumber(false), 0), 'false coerces to +0');
t.equal(1, ES.ToNumber(true), 'true coerces to 1');
t.test('numbers', function (st) {
st.ok(is(NaN, ES.ToNumber(NaN)), 'NaN returns itself');
forEach(v.zeroes.concat(v.infinities, 42), function (num) {
st.equal(num, ES.ToNumber(num), num + ' returns itself');
});
forEach(['foo', '0', '4a', '2.0', 'Infinity', '-Infinity'], function (numString) {
st.ok(is(+numString, ES.ToNumber(numString)), '"' + numString + '" coerces to ' + Number(numString));
});
st.end();
});
t.test('objects', function (st) {
forEach(v.objects, function (object) {
st.ok(is(ES.ToNumber(object), ES.ToNumber(ES.ToPrimitive(object))), 'object ' + object + ' coerces to same as ToPrimitive of object does');
});
st['throws'](function () { return ES.ToNumber(v.uncoercibleObject); }, TypeError, 'uncoercibleObject throws');
st.end();
});
t.test('binary literals', function (st) {
st.equal(ES.ToNumber('0b10'), 2, '0b10 is 2');
st.equal(ES.ToNumber({ toString: function () { return '0b11'; } }), 3, 'Object that toStrings to 0b11 is 3');
st.equal(true, is(ES.ToNumber('0b12'), NaN), '0b12 is NaN');
st.equal(true, is(ES.ToNumber({ toString: function () { return '0b112'; } }), NaN), 'Object that toStrings to 0b112 is NaN');
st.end();
});
t.test('octal literals', function (st) {
st.equal(ES.ToNumber('0o10'), 8, '0o10 is 8');
st.equal(ES.ToNumber({ toString: function () { return '0o11'; } }), 9, 'Object that toStrings to 0o11 is 9');
st.equal(true, is(ES.ToNumber('0o18'), NaN), '0o18 is NaN');
st.equal(true, is(ES.ToNumber({ toString: function () { return '0o118'; } }), NaN), 'Object that toStrings to 0o118 is NaN');
st.end();
});
t.test('signed hex numbers', function (st) {
st.equal(true, is(ES.ToNumber('-0xF'), NaN), '-0xF is NaN');
st.equal(true, is(ES.ToNumber(' -0xF '), NaN), 'space-padded -0xF is NaN');
st.equal(true, is(ES.ToNumber('+0xF'), NaN), '+0xF is NaN');
st.equal(true, is(ES.ToNumber(' +0xF '), NaN), 'space-padded +0xF is NaN');
st.end();
});
t.test('trimming of whitespace and non-whitespace characters', function (st) {
var whitespace = ' \t\x0b\f\xa0\ufeff\n\r\u2028\u2029\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000';
st.equal(0, ES.ToNumber(whitespace + 0 + whitespace), 'whitespace is trimmed');
// Zero-width space (zws), next line character (nel), and non-character (bom) are not whitespace.
var nonWhitespaces = {
'\\u0085': '\u0085',
'\\u200b': '\u200b',
'\\ufffe': '\ufffe'
};
forEach(nonWhitespaces, function (desc, nonWS) {
st.equal(true, is(ES.ToNumber(nonWS + 0 + nonWS), NaN), 'non-whitespace ' + desc + ' not trimmed');
});
st.end();
});
forEach(v.symbols, function (symbol) {
t['throws'](
function () { ES.ToNumber(symbol); },
TypeError,
'Symbols can’t be converted to a Number: ' + debug(symbol)
);
});
t.test('dates', function (st) {
var invalid = new Date(NaN);
st.ok(is(ES.ToNumber(invalid), NaN), 'invalid Date coerces to NaN');
var now = Date.now();
st.equal(ES.ToNumber(new Date(now)), now, 'Date coerces to timestamp');
st.end();
});
t.end();
});
test('ToInteger', function (t) {
t.ok(is(0, ES.ToInteger(NaN)), 'NaN coerces to +0');
forEach([0, Infinity, 42], function (num) {
t.ok(is(num, ES.ToInteger(num)), num + ' returns itself');
t.ok(is(-num, ES.ToInteger(-num)), '-' + num + ' returns itself');
});
t.equal(3, ES.ToInteger(Math.PI), 'pi returns 3');
t['throws'](function () { return ES.ToInteger(v.uncoercibleObject); }, TypeError, 'uncoercibleObject throws');
t.end();
});
test('ToInt32', function (t) {
t.ok(is(0, ES.ToInt32(NaN)), 'NaN coerces to +0');
forEach([0, Infinity], function (num) {
t.ok(is(0, ES.ToInt32(num)), num + ' returns +0');
t.ok(is(0, ES.ToInt32(-num)), '-' + num + ' returns +0');
});
t['throws'](function () { return ES.ToInt32(v.uncoercibleObject); }, TypeError, 'uncoercibleObject throws');
t.ok(is(ES.ToInt32(0x100000000), 0), '2^32 returns +0');
t.ok(is(ES.ToInt32(0x100000000 - 1), -1), '2^32 - 1 returns -1');
t.ok(is(ES.ToInt32(0x80000000), -0x80000000), '2^31 returns -2^31');
t.ok(is(ES.ToInt32(0x80000000 - 1), 0x80000000 - 1), '2^31 - 1 returns 2^31 - 1');
forEach([0, Infinity, NaN, 0x100000000, 0x80000000, 0x10000, 0x42], function (num) {
t.ok(is(ES.ToInt32(num), ES.ToInt32(ES.ToUint32(num))), 'ToInt32(x) === ToInt32(ToUint32(x)) for 0x' + num.toString(16));
t.ok(is(ES.ToInt32(-num), ES.ToInt32(ES.ToUint32(-num))), 'ToInt32(x) === ToInt32(ToUint32(x)) for -0x' + num.toString(16));
});
t.end();
});
test('ToUint32', function (t) {
t.ok(is(0, ES.ToUint32(NaN)), 'NaN coerces to +0');
forEach([0, Infinity], function (num) {
t.ok(is(0, ES.ToUint32(num)), num + ' returns +0');
t.ok(is(0, ES.ToUint32(-num)), '-' + num + ' returns +0');
});
t['throws'](function () { return ES.ToUint32(v.uncoercibleObject); }, TypeError, 'uncoercibleObject throws');
t.ok(is(ES.ToUint32(0x100000000), 0), '2^32 returns +0');
t.ok(is(ES.ToUint32(0x100000000 - 1), 0x100000000 - 1), '2^32 - 1 returns 2^32 - 1');
t.ok(is(ES.ToUint32(0x80000000), 0x80000000), '2^31 returns 2^31');
t.ok(is(ES.ToUint32(0x80000000 - 1), 0x80000000 - 1), '2^31 - 1 returns 2^31 - 1');
forEach([0, Infinity, NaN, 0x100000000, 0x80000000, 0x10000, 0x42], function (num) {
t.ok(is(ES.ToUint32(num), ES.ToUint32(ES.ToInt32(num))), 'ToUint32(x) === ToUint32(ToInt32(x)) for 0x' + num.toString(16));
t.ok(is(ES.ToUint32(-num), ES.ToUint32(ES.ToInt32(-num))), 'ToUint32(x) === ToUint32(ToInt32(x)) for -0x' + num.toString(16));
});
t.end();
});
test('ToInt16', function (t) {
t.ok(is(0, ES.ToInt16(NaN)), 'NaN coerces to +0');
forEach([0, Infinity], function (num) {
t.ok(is(0, ES.ToInt16(num)), num + ' returns +0');
t.ok(is(0, ES.ToInt16(-num)), '-' + num + ' returns +0');
});
t['throws'](function () { return ES.ToInt16(v.uncoercibleObject); }, TypeError, 'uncoercibleObject throws');
t.ok(is(ES.ToInt16(0x100000000), 0), '2^32 returns +0');
t.ok(is(ES.ToInt16(0x100000000 - 1), -1), '2^32 - 1 returns -1');
t.ok(is(ES.ToInt16(0x80000000), 0), '2^31 returns +0');
t.ok(is(ES.ToInt16(0x80000000 - 1), -1), '2^31 - 1 returns -1');
t.ok(is(ES.ToInt16(0x10000), 0), '2^16 returns +0');
t.ok(is(ES.ToInt16(0x10000 - 1), -1), '2^16 - 1 returns -1');
t.end();
});
test('ToUint16', function (t) {
t.ok(is(0, ES.ToUint16(NaN)), 'NaN coerces to +0');
forEach([0, Infinity], function (num) {
t.ok(is(0, ES.ToUint16(num)), num + ' returns +0');
t.ok(is(0, ES.ToUint16(-num)), '-' + num + ' returns +0');
});
t['throws'](function () { return ES.ToUint16(v.uncoercibleObject); }, TypeError, 'uncoercibleObject throws');
t.ok(is(ES.ToUint16(0x100000000), 0), '2^32 returns +0');
t.ok(is(ES.ToUint16(0x100000000 - 1), 0x10000 - 1), '2^32 - 1 returns 2^16 - 1');
t.ok(is(ES.ToUint16(0x80000000), 0), '2^31 returns +0');
t.ok(is(ES.ToUint16(0x80000000 - 1), 0x10000 - 1), '2^31 - 1 returns 2^16 - 1');
t.ok(is(ES.ToUint16(0x10000), 0), '2^16 returns +0');
t.ok(is(ES.ToUint16(0x10000 - 1), 0x10000 - 1), '2^16 - 1 returns 2^16 - 1');
t.end();
});
test('ToInt8', function (t) {
t.ok(is(0, ES.ToInt8(NaN)), 'NaN coerces to +0');
forEach([0, Infinity], function (num) {
t.ok(is(0, ES.ToInt8(num)), num + ' returns +0');
t.ok(is(0, ES.ToInt8(-num)), '-' + num + ' returns +0');
});
t['throws'](function () { return ES.ToInt8(v.uncoercibleObject); }, TypeError, 'uncoercibleObject throws');
t.ok(is(ES.ToInt8(0x100000000), 0), '2^32 returns +0');
t.ok(is(ES.ToInt8(0x100000000 - 1), -1), '2^32 - 1 returns -1');
t.ok(is(ES.ToInt8(0x80000000), 0), '2^31 returns +0');
t.ok(is(ES.ToInt8(0x80000000 - 1), -1), '2^31 - 1 returns -1');
t.ok(is(ES.ToInt8(0x10000), 0), '2^16 returns +0');
t.ok(is(ES.ToInt8(0x10000 - 1), -1), '2^16 - 1 returns -1');
t.ok(is(ES.ToInt8(0x100), 0), '2^8 returns +0');
t.ok(is(ES.ToInt8(0x100 - 1), -1), '2^8 - 1 returns -1');
t.ok(is(ES.ToInt8(0x10), 0x10), '2^4 returns 2^4');
t.end();
});
test('ToUint8', function (t) {
t.ok(is(0, ES.ToUint8(NaN)), 'NaN coerces to +0');
forEach([0, Infinity], function (num) {
t.ok(is(0, ES.ToUint8(num)), num + ' returns +0');
t.ok(is(0, ES.ToUint8(-num)), '-' + num + ' returns +0');
});
t['throws'](function () { return ES.ToUint8(v.uncoercibleObject); }, TypeError, 'uncoercibleObject throws');
t.ok(is(ES.ToUint8(0x100000000), 0), '2^32 returns +0');
t.ok(is(ES.ToUint8(0x100000000 - 1), 0x100 - 1), '2^32 - 1 returns 2^8 - 1');
t.ok(is(ES.ToUint8(0x80000000), 0), '2^31 returns +0');
t.ok(is(ES.ToUint8(0x80000000 - 1), 0x100 - 1), '2^31 - 1 returns 2^8 - 1');
t.ok(is(ES.ToUint8(0x10000), 0), '2^16 returns +0');
t.ok(is(ES.ToUint8(0x10000 - 1), 0x100 - 1), '2^16 - 1 returns 2^8 - 1');
t.ok(is(ES.ToUint8(0x100), 0), '2^8 returns +0');
t.ok(is(ES.ToUint8(0x100 - 1), 0x100 - 1), '2^8 - 1 returns 2^16 - 1');
t.ok(is(ES.ToUint8(0x10), 0x10), '2^4 returns 2^4');
t.ok(is(ES.ToUint8(0x10 - 1), 0x10 - 1), '2^4 - 1 returns 2^4 - 1');
t.end();
});
test('ToUint8Clamp', function (t) {
t.ok(is(0, ES.ToUint8Clamp(NaN)), 'NaN coerces to +0');
t.ok(is(0, ES.ToUint8Clamp(0)), '+0 returns +0');
t.ok(is(0, ES.ToUint8Clamp(-0)), '-0 returns +0');
t.ok(is(0, ES.ToUint8Clamp(-Infinity)), '-Infinity returns +0');
t['throws'](function () { return ES.ToUint8Clamp(v.uncoercibleObject); }, TypeError, 'uncoercibleObject throws');
forEach([255, 256, 0x100000, Infinity], function (number) {
t.ok(is(255, ES.ToUint8Clamp(number)), number + ' coerces to 255');
});
t.equal(1, ES.ToUint8Clamp(1.49), '1.49 coerces to 1');
t.equal(2, ES.ToUint8Clamp(1.5), '1.5 coerces to 2, because 2 is even');
t.equal(2, ES.ToUint8Clamp(1.51), '1.51 coerces to 2');
t.equal(2, ES.ToUint8Clamp(2.49), '2.49 coerces to 2');
t.equal(2, ES.ToUint8Clamp(2.5), '2.5 coerces to 2, because 2 is even');
t.equal(3, ES.ToUint8Clamp(2.51), '2.51 coerces to 3');
t.end();
});
test('ToString', function (t) {
forEach(v.objects.concat(v.nonSymbolPrimitives), function (item) {
t.equal(ES.ToString(item), String(item), 'ES.ToString(' + debug(item) + ') ToStrings to String(' + debug(item) + ')');
});
t['throws'](function () { return ES.ToString(v.uncoercibleObject); }, TypeError, 'uncoercibleObject throws');
forEach(v.symbols, function (symbol) {
t['throws'](function () { return ES.ToString(symbol); }, TypeError, debug(symbol) + ' throws');
});
t.end();
});
test('ToObject', function (t) {
t['throws'](function () { return ES.ToObject(undefined); }, TypeError, 'undefined throws');
t['throws'](function () { return ES.ToObject(null); }, TypeError, 'null throws');
forEach(v.numbers, function (number) {
var obj = ES.ToObject(number);
t.equal(typeof obj, 'object', 'number ' + number + ' coerces to object');
t.equal(true, obj instanceof Number, 'object of ' + number + ' is Number object');
t.ok(is(obj.valueOf(), number), 'object of ' + number + ' coerces to ' + number);
});
t.end();
});
test('RequireObjectCoercible', function (t) {
t.equal(false, 'CheckObjectCoercible' in ES, 'CheckObjectCoercible -> RequireObjectCoercible in ES6');
t['throws'](function () { return ES.RequireObjectCoercible(undefined); }, TypeError, 'undefined throws');
t['throws'](function () { return ES.RequireObjectCoercible(null); }, TypeError, 'null throws');
var isCoercible = function (value) {
t.doesNotThrow(function () { return ES.RequireObjectCoercible(value); }, debug(value) + ' does not throw');
};
forEach(v.objects.concat(v.nonNullPrimitives), isCoercible);
t.end();
});
test('IsCallable', function (t) {
t.equal(true, ES.IsCallable(function () {}), 'function is callable');
var nonCallables = [/a/g, {}, Object.prototype, NaN].concat(v.nonFunctions);
forEach(nonCallables, function (nonCallable) {
t.equal(false, ES.IsCallable(nonCallable), debug(nonCallable) + ' is not callable');
});
t.end();
});
test('SameValue', function (t) {
t.equal(true, ES.SameValue(NaN, NaN), 'NaN is SameValue as NaN');
t.equal(false, ES.SameValue(0, -0), '+0 is not SameValue as -0');
forEach(v.objects.concat(v.primitives), function (val) {
t.equal(val === val, ES.SameValue(val, val), debug(val) + ' is SameValue to itself');
});
t.end();
});
test('SameValueZero', function (t) {
t.equal(true, ES.SameValueZero(NaN, NaN), 'NaN is SameValueZero as NaN');
t.equal(true, ES.SameValueZero(0, -0), '+0 is SameValueZero as -0');
forEach(v.objects.concat(v.primitives), function (val) {
t.equal(val === val, ES.SameValueZero(val, val), debug(val) + ' is SameValueZero to itself');
});
t.end();
});
test('ToPropertyKey', function (t) {
forEach(v.objects.concat(v.nonSymbolPrimitives), function (value) {
t.equal(ES.ToPropertyKey(value), String(value), 'ToPropertyKey(value) === String(value) for non-Symbols');
});
forEach(v.symbols, function (symbol) {
t.equal(
ES.ToPropertyKey(symbol),
symbol,
'ToPropertyKey(' + debug(symbol) + ') === ' + debug(symbol)
);
t.equal(
ES.ToPropertyKey(Object(symbol)),
symbol,
'ToPropertyKey(' + debug(Object(symbol)) + ') === ' + debug(symbol)
);
});
t.end();
});
test('ToLength', function (t) {
t['throws'](function () { return ES.ToLength(v.uncoercibleObject); }, TypeError, 'uncoercibleObject throws a TypeError');
t.equal(3, ES.ToLength(v.coercibleObject), 'coercibleObject coerces to 3');
t.equal(42, ES.ToLength('42.5'), '"42.5" coerces to 42');
t.equal(7, ES.ToLength(7.3), '7.3 coerces to 7');
forEach([-0, -1, -42, -Infinity], function (negative) {
t.ok(is(0, ES.ToLength(negative)), negative + ' coerces to +0');
});
t.equal(MAX_SAFE_INTEGER, ES.ToLength(MAX_SAFE_INTEGER + 1), '2^53 coerces to 2^53 - 1');
t.equal(MAX_SAFE_INTEGER, ES.ToLength(MAX_SAFE_INTEGER + 3), '2^53 + 2 coerces to 2^53 - 1');
t.end();
});
test('IsArray', function (t) {
t.equal(true, ES.IsArray([]), '[] is array');
t.equal(false, ES.IsArray({}), '{} is not array');
t.equal(false, ES.IsArray({ length: 1, 0: true }), 'arraylike object is not array');
forEach(v.objects.concat(v.primitives), function (value) {
t.equal(false, ES.IsArray(value), debug(value) + ' is not array');
});
t.end();
});
test('IsRegExp', function (t) {
forEach([/a/g, new RegExp('a', 'g')], function (regex) {
t.equal(true, ES.IsRegExp(regex), regex + ' is regex');
});
forEach(v.objects.concat(v.primitives), function (nonRegex) {
t.equal(false, ES.IsRegExp(nonRegex), debug(nonRegex) + ' is not regex');
});
t.test('Symbol.match', { skip: !v.hasSymbols || !Symbol.match }, function (st) {
var obj = {};
obj[Symbol.match] = true;
st.equal(true, ES.IsRegExp(obj), 'object with truthy Symbol.match is regex');
var regex = /a/;
regex[Symbol.match] = false;
st.equal(false, ES.IsRegExp(regex), 'regex with falsy Symbol.match is not regex');
st.end();
});
t.end();
});
test('IsPropertyKey', function (t) {
forEach(v.numbers.concat(v.objects), function (notKey) {
t.equal(false, ES.IsPropertyKey(notKey), debug(notKey) + ' is not property key');
});
t.equal(true, ES.IsPropertyKey('foo'), 'string is property key');
forEach(v.symbols, function (symbol) {
t.equal(true, ES.IsPropertyKey(symbol), debug(symbol) + ' is property key');
});
t.end();
});
test('IsInteger', function (t) {
for (var i = -100; i < 100; i += 10) {
t.equal(true, ES.IsInteger(i), i + ' is integer');
t.equal(false, ES.IsInteger(i + 0.2), (i + 0.2) + ' is not integer');
}
t.equal(true, ES.IsInteger(-0), '-0 is integer');
var notInts = v.nonNumbers.concat(v.nonIntegerNumbers, v.infinities, [NaN, [], new Date()]);
forEach(notInts, function (notInt) {
t.equal(false, ES.IsInteger(notInt), debug(notInt) + ' is not integer');
});
t.equal(false, ES.IsInteger(v.uncoercibleObject), 'uncoercibleObject is not integer');
t.end();
});
test('IsExtensible', function (t) {
forEach(v.objects, function (object) {
t.equal(true, ES.IsExtensible(object), debug(object) + ' object is extensible');
});
forEach(v.primitives, function (primitive) {
t.equal(false, ES.IsExtensible(primitive), debug(primitive) + ' is not extensible');
});
if (Object.preventExtensions) {
t.equal(false, ES.IsExtensible(Object.preventExtensions({})), 'object with extensions prevented is not extensible');
}
t.end();
});
test('CanonicalNumericIndexString', function (t) {
var throwsOnNonString = function (notString) {
t['throws'](
function () { return ES.CanonicalNumericIndexString(notString); },
TypeError,
debug(notString) + ' is not a string'
);
};
forEach(v.objects.concat(v.numbers), throwsOnNonString);
t.ok(is(-0, ES.CanonicalNumericIndexString('-0')), '"-0" returns -0');
for (var i = -50; i < 50; i += 10) {
t.equal(i, ES.CanonicalNumericIndexString(String(i)), '"' + i + '" returns ' + i);
t.equal(undefined, ES.CanonicalNumericIndexString(String(i) + 'a'), '"' + i + 'a" returns undefined');
}
t.end();
});
test('IsConstructor', function (t) {
t.equal(true, ES.IsConstructor(function () {}), 'function is constructor');
t.equal(false, ES.IsConstructor(/a/g), 'regex is not constructor');
forEach(v.objects, function (object) {
t.equal(false, ES.IsConstructor(object), object + ' object is not constructor');
});
try {
var foo = Function('return class Foo {}')(); // eslint-disable-line no-new-func
t.equal(ES.IsConstructor(foo), true, 'class is constructor');
} catch (e) {
t.comment('SKIP: class syntax not supported.');
}
t.end();
});
test('Call', function (t) {
var receiver = {};
var notFuncs = v.nonFunctions.concat([/a/g, new RegExp('a', 'g')]);
t.plan(notFuncs.length + 4);
var throwsIfNotCallable = function (notFunc) {
t['throws'](
function () { return ES.Call(notFunc, receiver); },
TypeError,
debug(notFunc) + ' (' + typeof notFunc + ') is not callable'
);
};
forEach(notFuncs, throwsIfNotCallable);
ES.Call(
function (a, b) {
t.equal(this, receiver, 'context matches expected');
t.deepEqual([a, b], [1, 2], 'named args are correct');
t.equal(arguments.length, 3, 'extra argument was passed');
t.equal(arguments[2], 3, 'extra argument was correct');
},
receiver,
[1, 2, 3]
);
t.end();
});
test('GetV', function (t) {
t['throws'](function () { return ES.GetV({ 7: 7 }, 7); }, TypeError, 'Throws a TypeError if `P` is not a property key');
var obj = { a: function () {} };
t.equal(ES.GetV(obj, 'a'), obj.a, 'returns property if it exists');
t.equal(ES.GetV(obj, 'b'), undefined, 'returns undefiend if property does not exist');
t.end();
});
test('GetMethod', function (t) {
t['throws'](function () { return ES.GetMethod({ 7: 7 }, 7); }, TypeError, 'Throws a TypeError if `P` is not a property key');
t.equal(ES.GetMethod({}, 'a'), undefined, 'returns undefined in property is undefined');
t.equal(ES.GetMethod({ a: null }, 'a'), undefined, 'returns undefined if property is null');
t.equal(ES.GetMethod({ a: undefined }, 'a'), undefined, 'returns undefined if property is undefined');
var obj = { a: function () {} };
t['throws'](function () { ES.GetMethod({ a: 'b' }, 'a'); }, TypeError, 'throws TypeError if property exists and is not callable');
t.equal(ES.GetMethod(obj, 'a'), obj.a, 'returns property if it is callable');
t.end();
});
test('Get', function (t) {
t['throws'](function () { return ES.Get('a', 'a'); }, TypeError, 'Throws a TypeError if `O` is not an Object');
t['throws'](function () { return ES.Get({ 7: 7 }, 7); }, TypeError, 'Throws a TypeError if `P` is not a property key');
var value = {};
t.test('Symbols', { skip: !v.hasSymbols }, function (st) {
var sym = Symbol('sym');
var obj = {};
obj[sym] = value;
st.equal(ES.Get(obj, sym), value, 'returns property `P` if it exists on object `O`');
st.end();
});
t.equal(ES.Get({ a: value }, 'a'), value, 'returns property `P` if it exists on object `O`');
t.end();
});
test('Type', { skip: !v.hasSymbols }, function (t) {
t.equal(ES.Type(Symbol.iterator), 'Symbol', 'Type(Symbol.iterator) is Symbol');
t.end();
});
test('SpeciesConstructor', function (t) {
t['throws'](function () { ES.SpeciesConstructor(null); }, TypeError);
t['throws'](function () { ES.SpeciesConstructor(undefined); }, TypeError);
var defaultConstructor = function Foo() {};
t.equal(
ES.SpeciesConstructor({ constructor: undefined }, defaultConstructor),
defaultConstructor,
'undefined constructor returns defaultConstructor'
);
t['throws'](
function () { return ES.SpeciesConstructor({ constructor: null }, defaultConstructor); },
TypeError,
'non-undefined non-object constructor throws'
);
t.test('with Symbol.species', { skip: !hasSpecies }, function (st) {
var Bar = function Bar() {};
Bar[Symbol.species] = null;
st.equal(
ES.SpeciesConstructor(new Bar(), defaultConstructor),
defaultConstructor,
'undefined/null Symbol.species returns default constructor'
);
var Baz = function Baz() {};
Baz[Symbol.species] = Bar;
st.equal(
ES.SpeciesConstructor(new Baz(), defaultConstructor),
Bar,
'returns Symbol.species constructor value'
);
Baz[Symbol.species] = {};
st['throws'](
function () { ES.SpeciesConstructor(new Baz(), defaultConstructor); },
TypeError,
'throws when non-constructor non-null non-undefined species value found'
);
st.end();
});
t.end();
});
test('IsPropertyDescriptor', { skip: skips && skips.IsPropertyDescriptor }, function (t) {
forEach(v.nonUndefinedPrimitives, function (primitive) {
t.equal(
ES.IsPropertyDescriptor(primitive),
false,
debug(primitive) + ' is not a Property Descriptor'
);
});
t.equal(ES.IsPropertyDescriptor({ invalid: true }), false, 'invalid keys not allowed on a Property Descriptor');
t.equal(ES.IsPropertyDescriptor({}), true, 'empty object is an incomplete Property Descriptor');
t.equal(ES.IsPropertyDescriptor(v.accessorDescriptor()), true, 'accessor descriptor is a Property Descriptor');
t.equal(ES.IsPropertyDescriptor(v.mutatorDescriptor()), true, 'mutator descriptor is a Property Descriptor');
t.equal(ES.IsPropertyDescriptor(v.dataDescriptor()), true, 'data descriptor is a Property Descriptor');
t.equal(ES.IsPropertyDescriptor(v.genericDescriptor()), true, 'generic descriptor is a Property Descriptor');
t['throws'](
function () { ES.IsPropertyDescriptor(v.bothDescriptor()); },
TypeError,
'a Property Descriptor can not be both a Data and an Accessor Descriptor'
);
t.end();
});
assertRecordTests(ES, test);
test('IsAccessorDescriptor', function (t) {
forEach(v.nonUndefinedPrimitives, function (primitive) {
t['throws'](
function () { ES.IsAccessorDescriptor(primitive); },
TypeError,
debug(primitive) + ' is not a Property Descriptor'
);
});
t.equal(ES.IsAccessorDescriptor(), false, 'no value is not an Accessor Descriptor');
t.equal(ES.IsAccessorDescriptor(undefined), false, 'undefined value is not an Accessor Descriptor');
t.equal(ES.IsAccessorDescriptor(v.accessorDescriptor()), true, 'accessor descriptor is an Accessor Descriptor');
t.equal(ES.IsAccessorDescriptor(v.mutatorDescriptor()), true, 'mutator descriptor is an Accessor Descriptor');
t.equal(ES.IsAccessorDescriptor(v.dataDescriptor()), false, 'data descriptor is not an Accessor Descriptor');
t.equal(ES.IsAccessorDescriptor(v.genericDescriptor()), false, 'generic descriptor is not an Accessor Descriptor');
t.end();
});
test('IsDataDescriptor', function (t) {
forEach(v.nonUndefinedPrimitives, function (primitive) {
t['throws'](
function () { ES.IsDataDescriptor(primitive); },
TypeError,
debug(primitive) + ' is not a Property Descriptor'
);
});
t.equal(ES.IsDataDescriptor(), false, 'no value is not a Data Descriptor');
t.equal(ES.IsDataDescriptor(undefined), false, 'undefined value is not a Data Descriptor');
t.equal(ES.IsDataDescriptor(v.accessorDescriptor()), false, 'accessor descriptor is not a Data Descriptor');
t.equal(ES.IsDataDescriptor(v.mutatorDescriptor()), false, 'mutator descriptor is not a Data Descriptor');
t.equal(ES.IsDataDescriptor(v.dataDescriptor()), true, 'data descriptor is a Data Descriptor');
t.equal(ES.IsDataDescriptor(v.genericDescriptor()), false, 'generic descriptor is not a Data Descriptor');
t.end();
});
test('IsGenericDescriptor', function (t) {
forEach(v.nonUndefinedPrimitives, function (primitive) {
t['throws'](
function () { ES.IsGenericDescriptor(primitive); },
TypeError,
debug(primitive) + ' is not a Property Descriptor'
);
});
t.equal(ES.IsGenericDescriptor(), false, 'no value is not a Data Descriptor');
t.equal(ES.IsGenericDescriptor(undefined), false, 'undefined value is not a Data Descriptor');
t.equal(ES.IsGenericDescriptor(v.accessorDescriptor()), false, 'accessor descriptor is not a generic Descriptor');
t.equal(ES.IsGenericDescriptor(v.mutatorDescriptor()), false, 'mutator descriptor is not a generic Descriptor');
t.equal(ES.IsGenericDescriptor(v.dataDescriptor()), false, 'data descriptor is not a generic Descriptor');
t.equal(ES.IsGenericDescriptor(v.genericDescriptor()), true, 'generic descriptor is a generic Descriptor');
t.end();
});
test('FromPropertyDescriptor', function (t) {
t.equal(ES.FromPropertyDescriptor(), undefined, 'no value begets undefined');
t.equal(ES.FromPropertyDescriptor(undefined), undefined, 'undefined value begets undefined');
forEach(v.nonUndefinedPrimitives, function (primitive) {
t['throws'](
function () { ES.FromPropertyDescriptor(primitive); },
TypeError,
debug(primitive) + ' is not a Property Descriptor'
);
});
var accessor = v.accessorDescriptor();
t.deepEqual(ES.FromPropertyDescriptor(accessor), {
get: accessor['[[Get]]'],
enumerable: !!accessor['[[Enumerable]]'],
configurable: !!accessor['[[Configurable]]']
});
var mutator = v.mutatorDescriptor();
t.deepEqual(ES.FromPropertyDescriptor(mutator), {
set: mutator['[[Set]]'],
enumerable: !!mutator['[[Enumerable]]'],
configurable: !!mutator['[[Configurable]]']
});
var data = v.dataDescriptor();
t.deepEqual(ES.FromPropertyDescriptor(data), {
value: data['[[Value]]'],
writable: data['[[Writable]]']
});
t.deepEqual(ES.FromPropertyDescriptor(v.genericDescriptor()), {
enumerable: false,
configurable: true
});
t.end();
});
test('ToPropertyDescriptor', function (t) {
forEach(v.nonUndefinedPrimitives, function (primitive) {
t['throws'](
function () { ES.ToPropertyDescriptor(primitive); },
TypeError,
debug(primitive) + ' is not an Object'
);
});
var accessor = v.accessorDescriptor();
t.deepEqual(ES.ToPropertyDescriptor({
get: accessor['[[Get]]'],
enumerable: !!accessor['[[Enumerable]]'],
configurable: !!accessor['[[Configurable]]']
}), accessor);
var mutator = v.mutatorDescriptor();
t.deepEqual(ES.ToPropertyDescriptor({
set: mutator['[[Set]]'],
enumerable: !!mutator['[[Enumerable]]'],
configurable: !!mutator['[[Configurable]]']
}), mutator);
var data = v.dataDescriptor();
t.deepEqual(ES.ToPropertyDescriptor({
value: data['[[Value]]'],
writable: data['[[Writable]]'],
configurable: !!data['[[Configurable]]']
}), assign(data, { '[[Configurable]]': false }));
var both = v.bothDescriptor();
t['throws'](
function () {
ES.FromPropertyDescriptor({ get: both['[[Get]]'], value: both['[[Value]]'] });
},
TypeError,
'data and accessor descriptors are mutually exclusive'
);
t.end();
});
test('CompletePropertyDescriptor', function (t) {
forEach(v.nonUndefinedPrimitives, function (primitive) {
t['throws'](
function () { ES.CompletePropertyDescriptor(primitive); },
TypeError,
debug(primitive) + ' is not a Property Descriptor'
);
});
var generic = v.genericDescriptor();
t.deepEqual(
ES.CompletePropertyDescriptor(generic),
{
'[[Configurable]]': !!generic['[[Configurable]]'],
'[[Enumerable]]': !!generic['[[Enumerable]]'],
'[[Value]]': undefined,
'[[Writable]]': false
},
'completes a Generic Descriptor'
);
var data = v.dataDescriptor();
t.deepEqual(
ES.CompletePropertyDescriptor(data),
{
'[[Configurable]]': !!data['[[Configurable]]'],
'[[Enumerable]]': false,
'[[Value]]': data['[[Value]]'],
'[[Writable]]': !!data['[[Writable]]']
},
'completes a Data Descriptor'
);
var accessor = v.accessorDescriptor();
t.deepEqual(
ES.CompletePropertyDescriptor(accessor),
{
'[[Get]]': accessor['[[Get]]'],
'[[Enumerable]]': !!accessor['[[Enumerable]]'],
'[[Configurable]]': !!accessor['[[Configurable]]'],
'[[Set]]': undefined
},
'completes an Accessor Descriptor'
);
var mutator = v.mutatorDescriptor();
t.deepEqual(
ES.CompletePropertyDescriptor(mutator),
{
'[[Set]]': mutator['[[Set]]'],
'[[Enumerable]]': !!mutator['[[Enumerable]]'],
'[[Configurable]]': !!mutator['[[Configurable]]'],
'[[Get]]': undefined
},
'completes a mutator Descriptor'
);
t['throws'](
function () { ES.CompletePropertyDescriptor(v.bothDescriptor()); },
TypeError,
'data and accessor descriptors are mutually exclusive'
);
t.end();
});
test('Set', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.Set(primitive, '', null, false); },
TypeError,
debug(primitive) + ' is not an Object'
);
});
forEach(v.nonPropertyKeys, function (nonKey) {
t['throws'](
function () { ES.Set({}, nonKey, null, false); },
TypeError,
debug(nonKey) + ' is not a Property Key'
);
});
forEach(v.nonBooleans, function (nonBoolean) {
t['throws'](
function () { ES.Set({}, '', null, nonBoolean); },
TypeError,
debug(nonBoolean) + ' is not a Boolean'
);
});
var o = {};
var value = {};
ES.Set(o, 'key', value, true);
t.deepEqual(o, { key: value }, 'key is set');
t.test('nonwritable', { skip: !Object.defineProperty }, function (st) {
var obj = { a: value };
Object.defineProperty(obj, 'a', { writable: false });
st['throws'](
function () { ES.Set(obj, 'a', value, true); },
TypeError,
'can not Set nonwritable property'
);
st.doesNotThrow(
function () { ES.Set(obj, 'a', value, false); },
'setting Throw to false prevents an exception'
);
st.end();
});
t.test('nonconfigurable', { skip: !Object.defineProperty }, function (st) {
var obj = { a: value };
Object.defineProperty(obj, 'a', { configurable: false });
ES.Set(obj, 'a', value, true);
st.deepEqual(obj, { a: value }, 'key is set');
st.end();
});
t.end();
});
test('HasOwnProperty', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.HasOwnProperty(primitive, 'key'); },
TypeError,
debug(primitive) + ' is not an Object'
);
});
forEach(v.nonPropertyKeys, function (nonKey) {
t['throws'](
function () { ES.HasOwnProperty({}, nonKey); },
TypeError,
debug(nonKey) + ' is not a Property Key'
);
});
t.equal(ES.HasOwnProperty({}, 'toString'), false, 'inherited properties are not own');
t.equal(
ES.HasOwnProperty({ toString: 1 }, 'toString'),
true,
'shadowed inherited own properties are own'
);
t.equal(ES.HasOwnProperty({ a: 1 }, 'a'), true, 'own properties are own');
t.end();
});
test('HasProperty', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.HasProperty(primitive, 'key'); },
TypeError,
debug(primitive) + ' is not an Object'
);
});
forEach(v.nonPropertyKeys, function (nonKey) {
t['throws'](
function () { ES.HasProperty({}, nonKey); },
TypeError,
debug(nonKey) + ' is not a Property Key'
);
});
t.equal(ES.HasProperty({}, 'nope'), false, 'object does not have nonexistent properties');
t.equal(ES.HasProperty({}, 'toString'), true, 'object has inherited properties');
t.equal(
ES.HasProperty({ toString: 1 }, 'toString'),
true,
'object has shadowed inherited own properties'
);
t.equal(ES.HasProperty({ a: 1 }, 'a'), true, 'object has own properties');
t.end();
});
test('IsConcatSpreadable', function (t) {
forEach(v.primitives, function (primitive) {
t.equal(ES.IsConcatSpreadable(primitive), false, debug(primitive) + ' is not an Object');
});
var hasSymbolConcatSpreadable = v.hasSymbols && Symbol.isConcatSpreadable;
t.test('Symbol.isConcatSpreadable', { skip: !hasSymbolConcatSpreadable }, function (st) {
forEach(v.falsies, function (falsy) {
var obj = {};
obj[Symbol.isConcatSpreadable] = falsy;
st.equal(
ES.IsConcatSpreadable(obj),
false,
'an object with ' + debug(falsy) + ' as Symbol.isConcatSpreadable is not concat spreadable'
);
});
forEach(v.truthies, function (truthy) {
var obj = {};
obj[Symbol.isConcatSpreadable] = truthy;
st.equal(
ES.IsConcatSpreadable(obj),
true,
'an object with ' + debug(truthy) + ' as Symbol.isConcatSpreadable is concat spreadable'
);
});
st.end();
});
forEach(v.objects, function (object) {
t.equal(
ES.IsConcatSpreadable(object),
false,
'non-array without Symbol.isConcatSpreadable is not concat spreadable'
);
});
t.equal(ES.IsConcatSpreadable([]), true, 'arrays are concat spreadable');
t.end();
});
test('Invoke', function (t) {
forEach(v.nonPropertyKeys, function (nonKey) {
t['throws'](
function () { ES.Invoke({}, nonKey); },
TypeError,
debug(nonKey) + ' is not a Property Key'
);
});
t['throws'](function () { ES.Invoke({ o: false }, 'o'); }, TypeError, 'fails on a non-function');
t.test('invoked callback', function (st) {
var aValue = {};
var bValue = {};
var obj = {
f: function (a) {
st.equal(arguments.length, 2, '2 args passed');
st.equal(a, aValue, 'first arg is correct');
st.equal(arguments[1], bValue, 'second arg is correct');
}
};
st.plan(3);
ES.Invoke(obj, 'f', aValue, bValue);
});
t.end();
});
test('GetIterator', function (t) {
var arr = [1, 2];
testIterator(t, ES.GetIterator(arr), arr);
testIterator(t, ES.GetIterator('abc'), 'abc'.split(''));
t.test('Symbol.iterator', { skip: !v.hasSymbols }, function (st) {
var m = new Map();
m.set(1, 'a');
m.set(2, 'b');
testIterator(st, ES.GetIterator(m), [[1, 'a'], [2, 'b']]);
st.end();
});
t.end();
});
test('IteratorNext', { skip: true });
test('IteratorComplete', { skip: true });
test('IteratorValue', { skip: true });
test('IteratorStep', { skip: true });
test('IteratorClose', { skip: true });
test('CreateIterResultObject', function (t) {
forEach(v.nonBooleans, function (nonBoolean) {
t['throws'](
function () { ES.CreateIterResultObject({}, nonBoolean); },
TypeError,
'"done" argument must be a boolean; ' + debug(nonBoolean) + ' is not'
);
});
var value = {};
t.deepEqual(
ES.CreateIterResultObject(value, true),
{ value: value, done: true },
'creates a "done" iteration result'
);
t.deepEqual(
ES.CreateIterResultObject(value, false),
{ value: value, done: false },
'creates a "not done" iteration result'
);
t.end();
});
test('RegExpExec', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.RegExpExec(primitive); },
TypeError,
'"R" argument must be an object; ' + debug(primitive) + ' is not'
);
});
forEach(v.nonStrings, function (nonString) {
t['throws'](
function () { ES.RegExpExec({}, nonString); },
TypeError,
'"S" argument must be a String; ' + debug(nonString) + ' is not'
);
});
t.test('gets and calls a callable "exec"', function (st) {
var str = '123';
var o = {
exec: function (S) {
st.equal(this, o, '"exec" receiver is R');
st.equal(S, str, '"exec" argument is S');
return null;
}
};
st.plan(2);
ES.RegExpExec(o, str);
st.end();
});
t.test('throws if a callable "exec" returns a non-null non-object', function (st) {
var str = '123';
st.plan(v.nonNullPrimitives.length);
forEach(v.nonNullPrimitives, function (nonNullPrimitive) {
st['throws'](
function () { ES.RegExpExec({ exec: function () { return nonNullPrimitive; } }, str); },
TypeError,
'"exec" method must return `null` or an Object; ' + debug(nonNullPrimitive) + ' is not'
);
});
st.end();
});
t.test('actual regex that should match against a string', function (st) {
var S = 'aabc';
var R = /a/g;
var match1 = ES.RegExpExec(R, S);
var match2 = ES.RegExpExec(R, S);
var match3 = ES.RegExpExec(R, S);
st.deepEqual(match1, assign(['a'], groups({ index: 0, input: S })), 'match object 1 is as expected');
st.deepEqual(match2, assign(['a'], groups({ index: 1, input: S })), 'match object 2 is as expected');
st.equal(match3, null, 'match 3 is null as expected');
st.end();
});
t.test('actual regex that should match against a string, with shadowed "exec"', function (st) {
var S = 'aabc';
var R = /a/g;
R.exec = undefined;
var match1 = ES.RegExpExec(R, S);
var match2 = ES.RegExpExec(R, S);
var match3 = ES.RegExpExec(R, S);
st.deepEqual(match1, assign(['a'], groups({ index: 0, input: S })), 'match object 1 is as expected');
st.deepEqual(match2, assign(['a'], groups({ index: 1, input: S })), 'match object 2 is as expected');
st.equal(match3, null, 'match 3 is null as expected');
st.end();
});
t.end();
});
test('ArraySpeciesCreate', function (t) {
t.test('errors', function (st) {
var testNonNumber = function (nonNumber) {
st['throws'](
function () { ES.ArraySpeciesCreate([], nonNumber); },
TypeError,
debug(nonNumber) + ' is not a number'
);
};
forEach(v.nonNumbers, testNonNumber);
st['throws'](
function () { ES.ArraySpeciesCreate([], -1); },
TypeError,
'-1 is not >= 0'
);
st['throws'](
function () { ES.ArraySpeciesCreate([], -Infinity); },
TypeError,
'-Infinity is not >= 0'
);
var testNonIntegers = function (nonInteger) {
st['throws'](
function () { ES.ArraySpeciesCreate([], nonInteger); },
TypeError,
debug(nonInteger) + ' is not an integer'
);
};
forEach(v.nonIntegerNumbers, testNonIntegers);
st.end();
});
t.test('works with a non-array', function (st) {
forEach(v.objects.concat(v.primitives), function (nonArray) {
var arr = ES.ArraySpeciesCreate(nonArray, 0);
st.ok(ES.IsArray(arr), 'is an array');
st.equal(arr.length, 0, 'length is correct');
st.equal(arr.constructor, Array, 'constructor is correct');
});
st.end();
});
t.test('works with a normal array', function (st) {
var len = 2;
var orig = [1, 2, 3];
var arr = ES.ArraySpeciesCreate(orig, len);
st.ok(ES.IsArray(arr), 'is an array');
st.equal(arr.length, len, 'length is correct');
st.equal(arr.constructor, orig.constructor, 'constructor is correct');
st.end();
});
t.test('-0 length produces +0 length', function (st) {
var len = -0;
st.ok(is(len, -0), '-0 is negative zero');
st.notOk(is(len, 0), '-0 is not positive zero');
var orig = [1, 2, 3];
var arr = ES.ArraySpeciesCreate(orig, len);
st.equal(ES.IsArray(arr), true);
st.ok(is(arr.length, 0));
st.equal(arr.constructor, orig.constructor);
st.end();
});
t.test('works with species construtor', { skip: !hasSpecies }, function (st) {
var sentinel = {};
var Foo = function Foo(len) {
this.length = len;
this.sentinel = sentinel;
};
var Bar = getArraySubclassWithSpeciesConstructor(Foo);
var bar = new Bar();
t.equal(ES.IsArray(bar), true, 'Bar instance is an array');
var arr = ES.ArraySpeciesCreate(bar, 3);
st.equal(arr.constructor, Foo, 'result used species constructor');
st.equal(arr.length, 3, 'length property is correct');
st.equal(arr.sentinel, sentinel, 'Foo constructor was exercised');
st.end();
});
t.test('works with null species constructor', { skip: !hasSpecies }, function (st) {
var Bar = getArraySubclassWithSpeciesConstructor(null);
var bar = new Bar();
t.equal(ES.IsArray(bar), true, 'Bar instance is an array');
var arr = ES.ArraySpeciesCreate(bar, 3);
st.equal(arr.constructor, Array, 'result used default constructor');
st.equal(arr.length, 3, 'length property is correct');
st.end();
});
t.test('works with undefined species constructor', { skip: !hasSpecies }, function (st) {
var Bar = getArraySubclassWithSpeciesConstructor();
var bar = new Bar();
t.equal(ES.IsArray(bar), true, 'Bar instance is an array');
var arr = ES.ArraySpeciesCreate(bar, 3);
st.equal(arr.constructor, Array, 'result used default constructor');
st.equal(arr.length, 3, 'length property is correct');
st.end();
});
t.test('throws with object non-construtor species constructor', { skip: !hasSpecies }, function (st) {
forEach(v.objects, function (obj) {
var Bar = getArraySubclassWithSpeciesConstructor(obj);
var bar = new Bar();
st.equal(ES.IsArray(bar), true, 'Bar instance is an array');
st['throws'](
function () { ES.ArraySpeciesCreate(bar, 3); },
TypeError,
debug(obj) + ' is not a constructor'
);
});
st.end();
});
t.end();
});
test('CreateDataProperty', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.CreateDataProperty(primitive); },
TypeError,
debug(primitive) + ' is not an object'
);
});
forEach(v.nonPropertyKeys, function (nonPropertyKey) {
t['throws'](
function () { ES.CreateDataProperty({}, nonPropertyKey); },
TypeError,
debug(nonPropertyKey) + ' is not a property key'
);
});
var sentinel = {};
forEach(v.propertyKeys, function (propertyKey) {
var obj = {};
var status = ES.CreateDataProperty(obj, propertyKey, sentinel);
t.equal(status, true, 'status is true');
t.equal(
obj[propertyKey],
sentinel,
debug(sentinel) + ' is installed on "' + debug(propertyKey) + '" on the object'
);
if (typeof Object.defineProperty === 'function') {
var nonWritable = Object.defineProperty({}, propertyKey, { configurable: true, writable: false });
var nonWritableStatus = ES.CreateDataProperty(nonWritable, propertyKey, sentinel);
t.equal(nonWritableStatus, false, 'create data property failed');
t.notEqual(
nonWritable[propertyKey],
sentinel,
debug(sentinel) + ' is not installed on "' + debug(propertyKey) + '" on the object when key is nonwritable'
);
var nonConfigurable = Object.defineProperty({}, propertyKey, { configurable: false, writable: true });
var nonConfigurableStatus = ES.CreateDataProperty(nonConfigurable, propertyKey, sentinel);
t.equal(nonConfigurableStatus, false, 'create data property failed');
t.notEqual(
nonConfigurable[propertyKey],
sentinel,
debug(sentinel) + ' is not installed on "' + debug(propertyKey) + '" on the object when key is nonconfigurable'
);
}
});
t.end();
});
test('CreateDataPropertyOrThrow', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.CreateDataPropertyOrThrow(primitive); },
TypeError,
debug(primitive) + ' is not an object'
);
});
forEach(v.nonPropertyKeys, function (nonPropertyKey) {
t['throws'](
function () { ES.CreateDataPropertyOrThrow({}, nonPropertyKey); },
TypeError,
debug(nonPropertyKey) + ' is not a property key'
);
});
var sentinel = {};
forEach(v.propertyKeys, function (propertyKey) {
var obj = {};
var status = ES.CreateDataPropertyOrThrow(obj, propertyKey, sentinel);
t.equal(status, true, 'status is true');
t.equal(
obj[propertyKey],
sentinel,
debug(sentinel) + ' is installed on "' + debug(propertyKey) + '" on the object'
);
if (typeof Object.preventExtensions === 'function') {
var notExtensible = {};
Object.preventExtensions(notExtensible);
t['throws'](
function () { ES.CreateDataPropertyOrThrow(notExtensible, propertyKey, sentinel); },
TypeError,
'can not install ' + debug(propertyKey) + ' on non-extensible object'
);
t.notEqual(
notExtensible[propertyKey],
sentinel,
debug(sentinel) + ' is not installed on "' + debug(propertyKey) + '" on the object'
);
}
});
t.end();
});
test('ObjectCreate', function (t) {
forEach(v.nonNullPrimitives, function (value) {
t['throws'](
function () { ES.ObjectCreate(value); },
TypeError,
debug(value) + ' is not null, or an object'
);
});
t.test('proto arg', function (st) {
var Parent = function Parent() {};
Parent.prototype.foo = {};
var child = ES.ObjectCreate(Parent.prototype);
st.equal(child instanceof Parent, true, 'child is instanceof Parent');
st.equal(child.foo, Parent.prototype.foo, 'child inherits properties from Parent.prototype');
st.end();
});
t.test('internal slots arg', function (st) {
st.doesNotThrow(function () { ES.ObjectCreate(null, []); }, 'an empty slot list is valid');
st['throws'](
function () { ES.ObjectCreate(null, ['a']); },
SyntaxError,
'internal slots are not supported'
);
st.end();
});
t.test('null proto', { skip: !Object.create }, function (st) {
st.equal('toString' in {}, true, 'normal objects have toString');
st.equal('toString' in ES.ObjectCreate(null), false, 'makes a null object');
st.end();
});
t.test('null proto when no native Object.create', { skip: Object.create }, function (st) {
st['throws'](
function () { ES.ObjectCreate(null); },
SyntaxError,
'without a native Object.create, can not create null objects'
);
st.end();
});
t.end();
});
test('AdvanceStringIndex', function (t) {
forEach(v.nonStrings, function (nonString) {
t['throws'](
function () { ES.AdvanceStringIndex(nonString); },
TypeError,
'"S" argument must be a String; ' + debug(nonString) + ' is not'
);
});
var notInts = v.nonNumbers.concat(
v.nonIntegerNumbers,
v.infinities,
[NaN, [], new Date(), Math.pow(2, 53), -1]
);
forEach(notInts, function (nonInt) {
t['throws'](
function () { ES.AdvanceStringIndex('abc', nonInt); },
TypeError,
'"index" argument must be an integer, ' + debug(nonInt) + ' is not.'
);
});
forEach(v.nonBooleans, function (nonBoolean) {
t['throws'](
function () { ES.AdvanceStringIndex('abc', 0, nonBoolean); },
TypeError,
debug(nonBoolean) + ' is not a Boolean'
);
});
var str = 'a\uD83D\uDCA9c';
t.test('non-unicode mode', function (st) {
for (var i = 0; i < str.length + 2; i += 1) {
st.equal(ES.AdvanceStringIndex(str, i, false), i + 1, i + ' advances to ' + (i + 1));
}
st.end();
});
t.test('unicode mode', function (st) {
st.equal(ES.AdvanceStringIndex(str, 0, true), 1, '0 advances to 1');
st.equal(ES.AdvanceStringIndex(str, 1, true), 3, '1 advances to 3');
st.equal(ES.AdvanceStringIndex(str, 2, true), 3, '2 advances to 3');
st.equal(ES.AdvanceStringIndex(str, 3, true), 4, '3 advances to 4');
st.equal(ES.AdvanceStringIndex(str, 4, true), 5, '4 advances to 5');
st.end();
});
t.test('lone surrogates', function (st) {
var halfPoo = 'a\uD83Dc';
st.equal(ES.AdvanceStringIndex(halfPoo, 0, true), 1, '0 advances to 1');
st.equal(ES.AdvanceStringIndex(halfPoo, 1, true), 2, '1 advances to 2');
st.equal(ES.AdvanceStringIndex(halfPoo, 2, true), 3, '2 advances to 3');
st.equal(ES.AdvanceStringIndex(halfPoo, 3, true), 4, '3 advances to 4');
st.end();
});
t.test('surrogate pairs', function (st) {
var lowestPair = String.fromCharCode('0xD800') + String.fromCharCode('0xDC00');
var highestPair = String.fromCharCode('0xDBFF') + String.fromCharCode('0xDFFF');
var poop = String.fromCharCode('0xD83D') + String.fromCharCode('0xDCA9');
st.equal(ES.AdvanceStringIndex(lowestPair, 0, true), 2, 'lowest surrogate pair, 0 -> 2');
st.equal(ES.AdvanceStringIndex(highestPair, 0, true), 2, 'highest surrogate pair, 0 -> 2');
st.equal(ES.AdvanceStringIndex(poop, 0, true), 2, 'poop, 0 -> 2');
st.end();
});
t.end();
});
test('CreateMethodProperty', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.CreateMethodProperty(primitive, 'key'); },
TypeError,
'O must be an Object'
);
});
forEach(v.nonPropertyKeys, function (nonPropertyKey) {
t['throws'](
function () { ES.CreateMethodProperty({}, nonPropertyKey); },
TypeError,
debug(nonPropertyKey) + ' is not a Property Key'
);
});
t.test('defines correctly', function (st) {
var obj = {};
var key = 'the key';
var value = { foo: 'bar' };
st.equal(ES.CreateMethodProperty(obj, key, value), true, 'defines property successfully');
st.test('property descriptor', { skip: !Object.getOwnPropertyDescriptor }, function (s2t) {
s2t.deepEqual(
Object.getOwnPropertyDescriptor(obj, key),
{
configurable: true,
enumerable: false,
value: value,
writable: true
},
'sets the correct property descriptor'
);
s2t.end();
});
st.equal(obj[key], value, 'sets the correct value');
st.end();
});
t.test('fails as expected on a frozen object', { skip: !Object.freeze }, function (st) {
var obj = Object.freeze({ foo: 'bar' });
st['throws'](
function () { ES.CreateMethodProperty(obj, 'foo', { value: 'baz' }); },
TypeError,
'nonconfigurable key can not be defined'
);
st.end();
});
var hasNonConfigurableFunctionName = !Object.getOwnPropertyDescriptor
|| !Object.getOwnPropertyDescriptor(function () {}, 'name').configurable;
t.test('fails as expected on a function with a nonconfigurable name', { skip: !hasNonConfigurableFunctionName }, function (st) {
st['throws'](
function () { ES.CreateMethodProperty(function () {}, 'name', { value: 'baz' }); },
TypeError,
'nonconfigurable function name can not be defined'
);
st.end();
});
t.end();
});
test('DefinePropertyOrThrow', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.DefinePropertyOrThrow(primitive, 'key', {}); },
TypeError,
'O must be an Object'
);
});
forEach(v.nonPropertyKeys, function (nonPropertyKey) {
t['throws'](
function () { ES.DefinePropertyOrThrow({}, nonPropertyKey, {}); },
TypeError,
debug(nonPropertyKey) + ' is not a Property Key'
);
});
t.test('defines correctly', function (st) {
var obj = {};
var key = 'the key';
var descriptor = {
configurable: true,
enumerable: false,
value: { foo: 'bar' },
writable: true
};
st.equal(ES.DefinePropertyOrThrow(obj, key, descriptor), true, 'defines property successfully');
st.test('property descriptor', { skip: !Object.getOwnPropertyDescriptor }, function (s2t) {
s2t.deepEqual(
Object.getOwnPropertyDescriptor(obj, key),
descriptor,
'sets the correct property descriptor'
);
s2t.end();
});
st.deepEqual(obj[key], descriptor.value, 'sets the correct value');
st.end();
});
t.test('fails as expected on a frozen object', { skip: !Object.freeze }, function (st) {
var obj = Object.freeze({ foo: 'bar' });
st['throws'](
function () {
ES.DefinePropertyOrThrow(obj, 'foo', { configurable: true, value: 'baz' });
},
TypeError,
'nonconfigurable key can not be defined'
);
st.end();
});
var hasNonConfigurableFunctionName = !Object.getOwnPropertyDescriptor
|| !Object.getOwnPropertyDescriptor(function () {}, 'name').configurable;
t.test('fails as expected on a function with a nonconfigurable name', { skip: !hasNonConfigurableFunctionName }, function (st) {
st['throws'](
function () {
ES.DefinePropertyOrThrow(function () {}, 'name', { configurable: true, value: 'baz' });
},
TypeError,
'nonconfigurable function name can not be defined'
);
st.end();
});
t.end();
});
test('DeletePropertyOrThrow', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.DeletePropertyOrThrow(primitive, 'key', {}); },
TypeError,
'O must be an Object'
);
});
forEach(v.nonPropertyKeys, function (nonPropertyKey) {
t['throws'](
function () { ES.DeletePropertyOrThrow({}, nonPropertyKey, {}); },
TypeError,
debug(nonPropertyKey) + ' is not a Property Key'
);
});
t.test('defines correctly', function (st) {
var obj = { 'the key': 42 };
var key = 'the key';
st.equal(ES.DeletePropertyOrThrow(obj, key), true, 'deletes property successfully');
st.equal(key in obj, false, 'key is no longer in the object');
st.end();
});
t.test('fails as expected on a frozen object', { skip: !Object.freeze }, function (st) {
var obj = Object.freeze({ foo: 'bar' });
st['throws'](
function () { ES.DeletePropertyOrThrow(obj, 'foo'); },
TypeError,
'nonconfigurable key can not be deleted'
);
st.end();
});
var hasNonConfigurableFunctionName = !Object.getOwnPropertyDescriptor
|| !Object.getOwnPropertyDescriptor(function () {}, 'name').configurable;
t.test('fails as expected on a function with a nonconfigurable name', { skip: !hasNonConfigurableFunctionName }, function (st) {
st['throws'](
function () { ES.DeletePropertyOrThrow(function () {}, 'name'); },
TypeError,
'nonconfigurable function name can not be deleted'
);
st.end();
});
t.end();
});
test('EnumerableOwnNames', { skip: skips && skips.EnumerableOwnNames }, function (t) {
var obj = testEnumerableOwnNames(t, function (O) { return ES.EnumerableOwnNames(O); });
t.deepEqual(
ES.EnumerableOwnNames(obj),
['own'],
'returns enumerable own names'
);
t.end();
});
test('thisNumberValue', function (t) {
forEach(v.nonNumbers, function (nonNumber) {
t['throws'](
function () { ES.thisNumberValue(nonNumber); },
TypeError,
debug(nonNumber) + ' is not a Number'
);
});
forEach(v.numbers, function (number) {
t.equal(ES.thisNumberValue(number), number, debug(number) + ' is its own thisNumberValue');
var obj = Object(number);
t.equal(ES.thisNumberValue(obj), number, debug(obj) + ' is the boxed thisNumberValue');
});
t.end();
});
test('thisBooleanValue', function (t) {
forEach(v.nonBooleans, function (nonBoolean) {
t['throws'](
function () { ES.thisBooleanValue(nonBoolean); },
TypeError,
debug(nonBoolean) + ' is not a Boolean'
);
});
forEach(v.booleans, function (boolean) {
t.equal(ES.thisBooleanValue(boolean), boolean, debug(boolean) + ' is its own thisBooleanValue');
var obj = Object(boolean);
t.equal(ES.thisBooleanValue(obj), boolean, debug(obj) + ' is the boxed thisBooleanValue');
});
t.end();
});
test('thisStringValue', function (t) {
forEach(v.nonStrings, function (nonString) {
t['throws'](
function () { ES.thisStringValue(nonString); },
TypeError,
debug(nonString) + ' is not a String'
);
});
forEach(v.strings, function (string) {
t.equal(ES.thisStringValue(string), string, debug(string) + ' is its own thisStringValue');
var obj = Object(string);
t.equal(ES.thisStringValue(obj), string, debug(obj) + ' is the boxed thisStringValue');
});
t.end();
});
test('thisTimeValue', function (t) {
forEach(v.primitives.concat(v.objects), function (nonDate) {
t['throws'](
function () { ES.thisTimeValue(nonDate); },
TypeError,
debug(nonDate) + ' is not a Date'
);
});
forEach(v.timestamps, function (timestamp) {
var date = new Date(timestamp);
t.equal(ES.thisTimeValue(date), timestamp, debug(date) + ' is its own thisTimeValue');
});
t.end();
});
test('SetIntegrityLevel', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.SetIntegrityLevel(primitive); },
TypeError,
debug(primitive) + ' is not an Object'
);
});
t['throws'](
function () { ES.SetIntegrityLevel({}); },
/^TypeError: Assertion failed: `level` must be `"sealed"` or `"frozen"`$/,
'`level` must be `"sealed"` or `"frozen"`'
);
var O = { a: 1 };
t.equal(ES.SetIntegrityLevel(O, 'sealed'), true);
t['throws'](
function () { O.b = 2; },
/^TypeError: (Cannot|Can't) add property b, object is not extensible$/,
'sealing prevent new properties from being added'
);
O.a = 2;
t.equal(O.a, 2, 'pre-frozen, existing properties are mutable');
t.equal(ES.SetIntegrityLevel(O, 'frozen'), true);
t['throws'](
function () { O.a = 3; },
/^TypeError: Cannot assign to read only property 'a' of /,
'freezing prevents existing properties from being mutated'
);
t.end();
});
test('TestIntegrityLevel', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.TestIntegrityLevel(primitive); },
TypeError,
debug(primitive) + ' is not an Object'
);
});
t['throws'](
function () { ES.TestIntegrityLevel({ a: 1 }); },
/^TypeError: Assertion failed: `level` must be `"sealed"` or `"frozen"`$/,
'`level` must be `"sealed"` or `"frozen"`'
);
t.equal(ES.TestIntegrityLevel({ a: 1 }, 'sealed'), false, 'basic object is not sealed');
t.equal(ES.TestIntegrityLevel({ a: 1 }, 'frozen'), false, 'basic object is not frozen');
t.test('preventExtensions', { skip: !Object.preventExtensions }, function (st) {
var o = Object.preventExtensions({ a: 1 });
st.equal(ES.TestIntegrityLevel(o, 'sealed'), false, 'nonextensible object is not sealed');
st.equal(ES.TestIntegrityLevel(o, 'frozen'), false, 'nonextensible object is not frozen');
var empty = Object.preventExtensions({});
st.equal(ES.TestIntegrityLevel(empty, 'sealed'), true, 'empty nonextensible object is sealed');
st.equal(ES.TestIntegrityLevel(empty, 'frozen'), true, 'empty nonextensible object is frozen');
st.end();
});
t.test('seal', { skip: !Object.seal }, function (st) {
var o = Object.seal({ a: 1 });
st.equal(ES.TestIntegrityLevel(o, 'sealed'), true, 'sealed object is sealed');
st.equal(ES.TestIntegrityLevel(o, 'frozen'), false, 'sealed object is not frozen');
var empty = Object.seal({});
st.equal(ES.TestIntegrityLevel(empty, 'sealed'), true, 'empty sealed object is sealed');
st.equal(ES.TestIntegrityLevel(empty, 'frozen'), true, 'empty sealed object is frozen');
st.end();
});
t.test('freeze', { skip: !Object.freeze }, function (st) {
var o = Object.freeze({ a: 1 });
st.equal(ES.TestIntegrityLevel(o, 'sealed'), true, 'frozen object is sealed');
st.equal(ES.TestIntegrityLevel(o, 'frozen'), true, 'frozen object is frozen');
var empty = Object.freeze({});
st.equal(ES.TestIntegrityLevel(empty, 'sealed'), true, 'empty frozen object is sealed');
st.equal(ES.TestIntegrityLevel(empty, 'frozen'), true, 'empty frozen object is frozen');
st.end();
});
t.end();
});
test('OrdinaryHasInstance', function (t) {
forEach(v.nonFunctions, function (nonFunction) {
t.equal(ES.OrdinaryHasInstance(nonFunction, {}), false, debug(nonFunction) + ' is not callable');
});
forEach(v.primitives, function (primitive) {
t.equal(ES.OrdinaryHasInstance(function () {}, primitive), false, debug(primitive) + ' is not an object');
});
var C = function C() {};
var D = function D() {};
t.equal(ES.OrdinaryHasInstance(C, new C()), true, 'constructor function has an instance of itself');
t.equal(ES.OrdinaryHasInstance(C, new D()), false, 'constructor/instance mismatch is false');
t.equal(ES.OrdinaryHasInstance(D, new C()), false, 'instance/constructor mismatch is false');
t.equal(ES.OrdinaryHasInstance(C, {}), false, 'plain object is not an instance of a constructor');
t.equal(ES.OrdinaryHasInstance(Object, {}), true, 'plain object is an instance of Object');
t.end();
});
test('OrdinaryHasProperty', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.OrdinaryHasProperty(primitive, ''); },
TypeError,
debug(primitive) + ' is not an object'
);
});
forEach(v.nonPropertyKeys, function (nonPropertyKey) {
t['throws'](
function () { ES.OrdinaryHasProperty({}, nonPropertyKey); },
TypeError,
'P: ' + debug(nonPropertyKey) + ' is not a Property Key'
);
});
t.equal(ES.OrdinaryHasProperty({ a: 1 }, 'a'), true, 'own property is true');
t.equal(ES.OrdinaryHasProperty({}, 'toString'), true, 'inherited property is true');
t.equal(ES.OrdinaryHasProperty({}, 'nope'), false, 'absent property is false');
t.end();
});
test('InstanceofOperator', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.InstanceofOperator(primitive, function () {}); },
TypeError,
debug(primitive) + ' is not an object'
);
});
forEach(v.nonFunctions, function (nonFunction) {
t['throws'](
function () { ES.InstanceofOperator({}, nonFunction); },
TypeError,
debug(nonFunction) + ' is not callable'
);
});
var C = function C() {};
var D = function D() {};
t.equal(ES.InstanceofOperator(new C(), C), true, 'constructor function has an instance of itself');
t.equal(ES.InstanceofOperator(new D(), C), false, 'constructor/instance mismatch is false');
t.equal(ES.InstanceofOperator(new C(), D), false, 'instance/constructor mismatch is false');
t.equal(ES.InstanceofOperator({}, C), false, 'plain object is not an instance of a constructor');
t.equal(ES.InstanceofOperator({}, Object), true, 'plain object is an instance of Object');
t.test('Symbol.hasInstance', { skip: !v.hasSymbols || !Symbol.hasInstance }, function (st) {
st.plan(4);
var O = {};
var C2 = function () {};
st.equal(ES.InstanceofOperator(O, C2), false, 'O is not an instance of C2');
Object.defineProperty(C2, Symbol.hasInstance, {
value: function (obj) {
st.equal(this, C2, 'hasInstance receiver is C2');
st.equal(obj, O, 'hasInstance argument is O');
return {}; // testing coercion to boolean
}
});
st.equal(ES.InstanceofOperator(O, C2), true, 'O is now an instance of C2');
st.end();
});
t.end();
});
test('Abstract Equality Comparison', function (t) {
t.test('same types use ===', function (st) {
forEach(v.primitives.concat(v.objects), function (value) {
st.equal(ES['Abstract Equality Comparison'](value, value), value === value, debug(value) + ' is abstractly equal to itself');
});
st.end();
});
t.test('different types coerce', function (st) {
var pairs = [
[null, undefined],
[3, '3'],
[true, '3'],
[true, 3],
[false, 0],
[false, '0'],
[3, [3]],
['3', [3]],
[true, [1]],
[false, [0]],
[String(v.coercibleObject), v.coercibleObject],
[Number(String(v.coercibleObject)), v.coercibleObject],
[Number(v.coercibleObject), v.coercibleObject],
[String(Number(v.coercibleObject)), v.coercibleObject]
];
forEach(pairs, function (pair) {
var a = pair[0];
var b = pair[1];
// eslint-disable-next-line eqeqeq
st.equal(ES['Abstract Equality Comparison'](a, b), a == b, debug(a) + ' == ' + debug(b));
// eslint-disable-next-line eqeqeq
st.equal(ES['Abstract Equality Comparison'](b, a), b == a, debug(b) + ' == ' + debug(a));
});
st.end();
});
t.end();
});
test('Strict Equality Comparison', function (t) {
t.test('same types use ===', function (st) {
forEach(v.primitives.concat(v.objects), function (value) {
st.equal(ES['Strict Equality Comparison'](value, value), value === value, debug(value) + ' is strictly equal to itself');
});
st.end();
});
t.test('different types are not ===', function (st) {
var pairs = [
[null, undefined],
[3, '3'],
[true, '3'],
[true, 3],
[false, 0],
[false, '0'],
[3, [3]],
['3', [3]],
[true, [1]],
[false, [0]],
[String(v.coercibleObject), v.coercibleObject],
[Number(String(v.coercibleObject)), v.coercibleObject],
[Number(v.coercibleObject), v.coercibleObject],
[String(Number(v.coercibleObject)), v.coercibleObject]
];
forEach(pairs, function (pair) {
var a = pair[0];
var b = pair[1];
st.equal(ES['Strict Equality Comparison'](a, b), a === b, debug(a) + ' === ' + debug(b));
st.equal(ES['Strict Equality Comparison'](b, a), b === a, debug(b) + ' === ' + debug(a));
});
st.end();
});
t.end();
});
test('Abstract Relational Comparison', function (t) {
t.test('at least one operand is NaN', function (st) {
st.equal(ES['Abstract Relational Comparison'](NaN, {}, true), undefined, 'LeftFirst: first is NaN, returns undefined');
st.equal(ES['Abstract Relational Comparison']({}, NaN, true), undefined, 'LeftFirst: second is NaN, returns undefined');
st.equal(ES['Abstract Relational Comparison'](NaN, {}, false), undefined, '!LeftFirst: first is NaN, returns undefined');
st.equal(ES['Abstract Relational Comparison']({}, NaN, false), undefined, '!LeftFirst: second is NaN, returns undefined');
st.end();
});
t.equal(ES['Abstract Relational Comparison'](3, 4, true), true, 'LeftFirst: 3 is less than 4');
t.equal(ES['Abstract Relational Comparison'](4, 3, true), false, 'LeftFirst: 3 is not less than 4');
t.equal(ES['Abstract Relational Comparison'](3, 4, false), true, '!LeftFirst: 3 is less than 4');
t.equal(ES['Abstract Relational Comparison'](4, 3, false), false, '!LeftFirst: 3 is not less than 4');
t.equal(ES['Abstract Relational Comparison']('3', '4', true), true, 'LeftFirst: "3" is less than "4"');
t.equal(ES['Abstract Relational Comparison']('4', '3', true), false, 'LeftFirst: "3" is not less than "4"');
t.equal(ES['Abstract Relational Comparison']('3', '4', false), true, '!LeftFirst: "3" is less than "4"');
t.equal(ES['Abstract Relational Comparison']('4', '3', false), false, '!LeftFirst: "3" is not less than "4"');
t.equal(ES['Abstract Relational Comparison'](v.coercibleObject, 42, true), true, 'LeftFirst: coercible object is less than 42');
t.equal(ES['Abstract Relational Comparison'](42, v.coercibleObject, true), false, 'LeftFirst: 42 is not less than coercible object');
t.equal(ES['Abstract Relational Comparison'](v.coercibleObject, 42, false), true, '!LeftFirst: coercible object is less than 42');
t.equal(ES['Abstract Relational Comparison'](42, v.coercibleObject, false), false, '!LeftFirst: 42 is not less than coercible object');
t.equal(ES['Abstract Relational Comparison'](v.coercibleObject, '3', true), false, 'LeftFirst: coercible object is not less than "3"');
t.equal(ES['Abstract Relational Comparison']('3', v.coercibleObject, true), false, 'LeftFirst: "3" is not less than coercible object');
t.equal(ES['Abstract Relational Comparison'](v.coercibleObject, '3', false), false, '!LeftFirst: coercible object is not less than "3"');
t.equal(ES['Abstract Relational Comparison']('3', v.coercibleObject, false), false, '!LeftFirst: "3" is not less than coercible object');
t.end();
});
test('ValidateAndApplyPropertyDescriptor', function (t) {
forEach(v.nonUndefinedPrimitives, function (nonUndefinedPrimitive) {
t['throws'](
function () { ES.ValidateAndApplyPropertyDescriptor(nonUndefinedPrimitive, '', false, v.genericDescriptor(), v.genericDescriptor()); },
TypeError,
'O: ' + debug(nonUndefinedPrimitive) + ' is not undefined or an Object'
);
});
forEach(v.nonBooleans, function (nonBoolean) {
t['throws'](
function () {
return ES.ValidateAndApplyPropertyDescriptor(
undefined,
null,
nonBoolean,
v.genericDescriptor(),
v.genericDescriptor()
);
},
TypeError,
'extensible: ' + debug(nonBoolean) + ' is not a Boolean'
);
});
forEach(v.primitives, function (primitive) {
// Desc must be a Property Descriptor
t['throws'](
function () {
return ES.ValidateAndApplyPropertyDescriptor(
undefined,
null,
false,
primitive,
v.genericDescriptor()
);
},
TypeError,
'Desc: ' + debug(primitive) + ' is not a Property Descriptor'
);
});
forEach(v.nonUndefinedPrimitives, function (primitive) {
// current must be undefined or a Property Descriptor
t['throws'](
function () {
return ES.ValidateAndApplyPropertyDescriptor(
undefined,
null,
false,
v.genericDescriptor(),
primitive
);
},
TypeError,
'current: ' + debug(primitive) + ' is not a Property Descriptor or undefined'
);
});
forEach(v.nonPropertyKeys, function (nonPropertyKey) {
// if O is an object, P must be a property key
t['throws'](
function () {
return ES.ValidateAndApplyPropertyDescriptor(
{},
nonPropertyKey,
false,
v.genericDescriptor(),
v.genericDescriptor()
);
},
TypeError,
'P: ' + debug(nonPropertyKey) + ' is not a Property Key'
);
});
t.test('current is undefined', function (st) {
var propertyKey = 'howdy';
st.test('generic descriptor', function (s2t) {
var generic = v.genericDescriptor();
generic['[[Enumerable]]'] = true;
var O = {};
ES.ValidateAndApplyPropertyDescriptor(undefined, propertyKey, true, generic);
s2t.equal(
ES.ValidateAndApplyPropertyDescriptor(O, propertyKey, false, generic),
false,
'when extensible is false, nothing happens'
);
s2t.deepEqual(O, {}, 'no changes applied when O is undefined or extensible is false');
s2t.equal(
ES.ValidateAndApplyPropertyDescriptor(O, propertyKey, true, generic),
true,
'operation is successful'
);
var expected = {};
expected[propertyKey] = undefined;
s2t.deepEqual(O, expected, 'generic descriptor has been defined as an own data property');
s2t.end();
});
st.test('data descriptor', function (s2t) {
var data = v.dataDescriptor();
data['[[Enumerable]]'] = true;
var O = {};
ES.ValidateAndApplyPropertyDescriptor(undefined, propertyKey, true, data);
s2t.equal(
ES.ValidateAndApplyPropertyDescriptor(O, propertyKey, false, data),
false,
'when extensible is false, nothing happens'
);
s2t.deepEqual(O, {}, 'no changes applied when O is undefined or extensible is false');
s2t.equal(
ES.ValidateAndApplyPropertyDescriptor(O, propertyKey, true, data),
true,
'operation is successful'
);
var expected = {};
expected[propertyKey] = data['[[Value]]'];
s2t.deepEqual(O, expected, 'data descriptor has been defined as an own data property');
s2t.end();
});
st.test('accessor descriptor', function (s2t) {
var count = 0;
var accessor = v.accessorDescriptor();
accessor['[[Enumerable]]'] = true;
accessor['[[Get]]'] = function () {
count += 1;
return count;
};
var O = {};
ES.ValidateAndApplyPropertyDescriptor(undefined, propertyKey, true, accessor);
s2t.equal(
ES.ValidateAndApplyPropertyDescriptor(O, propertyKey, false, accessor),
false,
'when extensible is false, nothing happens'
);
s2t.deepEqual(O, {}, 'no changes applied when O is undefined or extensible is false');
s2t.equal(
ES.ValidateAndApplyPropertyDescriptor(O, propertyKey, true, accessor),
true,
'operation is successful'
);
var expected = {};
expected[propertyKey] = accessor['[[Get]]']() + 1;
s2t.deepEqual(O, expected, 'accessor descriptor has been defined as an own accessor property');
s2t.end();
});
st.end();
});
t.test('every field in Desc is absent', { skip: 'it is unclear if having no fields qualifies Desc to be a Property Descriptor' });
forEach([v.dataDescriptor, v.accessorDescriptor, v.mutatorDescriptor], function (getDescriptor) {
t.equal(
ES.ValidateAndApplyPropertyDescriptor(undefined, 'property key', true, getDescriptor(), getDescriptor()),
true,
'when Desc and current are the same, early return true'
);
});
t.test('current is nonconfigurable', function (st) {
// note: these must not be generic descriptors, or else the algorithm returns an early true
st.equal(
ES.ValidateAndApplyPropertyDescriptor(
undefined,
'property key',
true,
v.descriptors.configurable(v.dataDescriptor()),
v.descriptors.nonConfigurable(v.dataDescriptor())
),
false,
'false if Desc is configurable'
);
st.equal(
ES.ValidateAndApplyPropertyDescriptor(
undefined,
'property key',
true,
v.descriptors.enumerable(v.dataDescriptor()),
v.descriptors.nonEnumerable(v.dataDescriptor())
),
false,
'false if Desc is Enumerable and current is not'
);
st.equal(
ES.ValidateAndApplyPropertyDescriptor(
undefined,
'property key',
true,
v.descriptors.nonEnumerable(v.dataDescriptor()),
v.descriptors.enumerable(v.dataDescriptor())
),
false,
'false if Desc is not Enumerable and current is'
);
var descLackingEnumerable = v.accessorDescriptor();
delete descLackingEnumerable['[[Enumerable]]'];
st.equal(
ES.ValidateAndApplyPropertyDescriptor(
undefined,
'property key',
true,
descLackingEnumerable,
v.descriptors.enumerable(v.accessorDescriptor())
),
true,
'not false if Desc lacks Enumerable'
);
st.end();
});
t.test('Desc and current: one is a data descriptor, one is not', { skip: !Object.defineProperty }, function (st) {
// note: Desc must be configurable if current is nonconfigurable, to hit this branch
st.equal(
ES.ValidateAndApplyPropertyDescriptor(
undefined,
'property key',
true,
v.descriptors.configurable(v.accessorDescriptor()),
v.descriptors.nonConfigurable(v.dataDescriptor())
),
false,
'false if current (data) is nonconfigurable'
);
st.equal(
ES.ValidateAndApplyPropertyDescriptor(
undefined,
'property key',
true,
v.descriptors.configurable(v.dataDescriptor()),
v.descriptors.nonConfigurable(v.accessorDescriptor())
),
false,
'false if current (not data) is nonconfigurable'
);
// one is data and one is not,
// // if current is data, convert to accessor
// // else convert to data
var startsWithData = {
'property key': 42
};
st.equal(
ES.ValidateAndApplyPropertyDescriptor(
startsWithData,
'property key',
true,
v.descriptors.enumerable(v.descriptors.configurable(v.accessorDescriptor())),
v.descriptors.enumerable(v.descriptors.configurable(v.dataDescriptor()))
),
true,
'operation is successful: current is data, Desc is accessor'
);
var shouldBeAccessor = Object.getOwnPropertyDescriptor(startsWithData, 'property key');
st.equal(typeof shouldBeAccessor.get, 'function', 'has a getter');
var key = 'property key';
var startsWithAccessor = {};
Object.defineProperty(startsWithAccessor, key, {
configurable: true,
enumerable: true,
get: function get() { return 42; }
});
st.equal(
ES.ValidateAndApplyPropertyDescriptor(
startsWithAccessor,
key,
true,
v.descriptors.enumerable(v.descriptors.configurable(v.dataDescriptor())),
v.descriptors.enumerable(v.descriptors.configurable(v.accessorDescriptor(42)))
),
true,
'operation is successful: current is accessor, Desc is data'
);
var shouldBeData = Object.getOwnPropertyDescriptor(startsWithAccessor, 'property key');
st.deepEqual(shouldBeData, { configurable: true, enumerable: true, value: 42, writable: false }, 'is a data property');
st.end();
});
t.test('Desc and current are both data descriptors', function (st) {
st.equal(
ES.ValidateAndApplyPropertyDescriptor(
undefined,
'property key',
true,
v.descriptors.writable(v.dataDescriptor()),
v.descriptors.nonWritable(v.descriptors.nonConfigurable(v.dataDescriptor()))
),
false,
'false if frozen current and writable Desc'
);
st.equal(
ES.ValidateAndApplyPropertyDescriptor(
undefined,
'property key',
true,
v.descriptors.configurable({ '[[Value]]': 42 }),
v.descriptors.nonWritable({ '[[Value]]': 7 })
),
false,
'false if nonwritable current has a different value than Desc'
);
st.end();
});
t.test('current is nonconfigurable; Desc and current are both accessor descriptors', function (st) {
st.equal(
ES.ValidateAndApplyPropertyDescriptor(
undefined,
'property key',
true,
v.mutatorDescriptor(),
v.descriptors.nonConfigurable(v.mutatorDescriptor())
),
false,
'false if both Sets are not equal'
);
st.equal(
ES.ValidateAndApplyPropertyDescriptor(
undefined,
'property key',
true,
v.accessorDescriptor(),
v.descriptors.nonConfigurable(v.accessorDescriptor())
),
false,
'false if both Gets are not equal'
);
st.end();
});
t.end();
});
test('OrdinaryGetOwnProperty', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.OrdinaryGetOwnProperty(primitive, ''); },
TypeError,
'O: ' + debug(primitive) + ' is not an Object'
);
});
forEach(v.nonPropertyKeys, function (nonPropertyKey) {
t['throws'](
function () { ES.OrdinaryGetOwnProperty({}, nonPropertyKey); },
TypeError,
'P: ' + debug(nonPropertyKey) + ' is not a Property Key'
);
});
t.equal(ES.OrdinaryGetOwnProperty({}, 'not in the object'), undefined, 'missing property yields undefined');
t.equal(ES.OrdinaryGetOwnProperty({}, 'toString'), undefined, 'inherited non-own property yields undefined');
t.deepEqual(
ES.OrdinaryGetOwnProperty({ a: 1 }, 'a'),
ES.ToPropertyDescriptor({
configurable: true,
enumerable: true,
value: 1,
writable: true
}),
'own assigned data property yields expected descriptor'
);
t.deepEqual(
ES.OrdinaryGetOwnProperty(/a/, 'lastIndex'),
ES.ToPropertyDescriptor({
configurable: false,
enumerable: false,
value: 0,
writable: true
}),
'regex lastIndex yields expected descriptor'
);
t.deepEqual(
ES.OrdinaryGetOwnProperty([], 'length'),
ES.ToPropertyDescriptor({
configurable: false,
enumerable: false,
value: 0,
writable: true
}),
'array length yields expected descriptor'
);
t.deepEqual(
ES.OrdinaryGetOwnProperty(Object.prototype, 'toString'),
ES.ToPropertyDescriptor({
configurable: true,
enumerable: false,
value: Object.prototype.toString,
writable: true
}),
'own non-enumerable data property yields expected descriptor'
);
t.test('ES5+', { skip: !Object.defineProperty }, function (st) {
var O = {};
Object.defineProperty(O, 'foo', {
configurable: false,
enumerable: false,
value: O,
writable: true
});
t.deepEqual(
ES.OrdinaryGetOwnProperty(O, 'foo'),
ES.ToPropertyDescriptor({
configurable: false,
enumerable: false,
value: O,
writable: true
}),
'defined own property yields expected descriptor'
);
st.end();
});
t.end();
});
test('OrdinaryDefineOwnProperty', { skip: !Object.defineProperty }, function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.CopyDataProperties(primitive, {}, []); },
TypeError,
'O: ' + debug(primitive) + ' is not an Object'
);
});
forEach(v.nonPropertyKeys, function (nonPropertyKey) {
t['throws'](
function () { ES.OrdinaryDefineOwnProperty({}, nonPropertyKey, v.genericDescriptor()); },
TypeError,
'P: ' + debug(nonPropertyKey) + ' is not a Property Key'
);
});
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.OrdinaryDefineOwnProperty(primitive, '', v.genericDescriptor()); },
TypeError,
'Desc: ' + debug(primitive) + ' is not a Property Descriptor'
);
});
var O = {};
var P = 'property key';
var Desc = v.accessorDescriptor();
t.equal(
ES.OrdinaryDefineOwnProperty(O, P, Desc),
true,
'operation is successful'
);
t.deepEqual(
Object.getOwnPropertyDescriptor(O, P),
ES.FromPropertyDescriptor(ES.CompletePropertyDescriptor(Desc)),
'expected property descriptor is defined'
);
t.end();
});
test('ArrayCreate', function (t) {
forEach(v.nonIntegerNumbers.concat([-1]), function (nonIntegerNumber) {
t['throws'](
function () { ES.ArrayCreate(nonIntegerNumber); },
TypeError,
'length must be an integer number >= 0'
);
});
t['throws'](
function () { ES.ArrayCreate(Math.pow(2, 32)); },
RangeError,
'length must be < 2**32'
);
t.deepEqual(ES.ArrayCreate(-0), [], 'length of -0 creates an empty array');
t.deepEqual(ES.ArrayCreate(0), [], 'length of +0 creates an empty array');
// eslint-disable-next-line no-sparse-arrays, comma-spacing
t.deepEqual(ES.ArrayCreate(1), [,], 'length of 1 creates a sparse array of length 1');
// eslint-disable-next-line no-sparse-arrays, comma-spacing
t.deepEqual(ES.ArrayCreate(2), [,,], 'length of 2 creates a sparse array of length 2');
// eslint-disable-next-line no-proto
t.test('proto argument', { skip: [].__proto__ !== Array.prototype }, function (st) {
var fakeProto = {
push: { toString: function () { return 'not array push'; } }
};
st.equal(ES.ArrayCreate(0, fakeProto).push, fakeProto.push, 'passing the proto argument works');
st.end();
});
t.end();
});
test('ArraySetLength', function (t) {
forEach(v.primitives.concat(v.objects), function (nonArray) {
t['throws'](
function () { ES.ArraySetLength(nonArray, 0); },
TypeError,
'A: ' + debug(nonArray) + ' is not an Array'
);
});
forEach(v.nonUndefinedPrimitives, function (primitive) {
t['throws'](
function () { ES.ArraySetLength([], primitive); },
TypeError,
'Desc: ' + debug(primitive) + ' is not a Property Descriptor'
);
});
t.test('making length nonwritable', { skip: !Object.defineProperty }, function (st) {
var a = [];
ES.ArraySetLength(a, { '[[Writable]]': false });
st.deepEqual(
Object.getOwnPropertyDescriptor(a, 'length'),
{
configurable: false,
enumerable: false,
value: 0,
writable: false
},
'without a value, length becomes nonwritable'
);
st.end();
});
var arr = [];
ES.ArraySetLength(arr, { '[[Value]]': 7 });
t.equal(arr.length, 7, 'array now has a length of 7');
t.end();
});
test('CreateHTML', function (t) {
forEach(v.nonStrings, function (nonString) {
t['throws'](
function () { ES.CreateHTML('', nonString, '', ''); },
TypeError,
'tag: ' + debug(nonString) + ' is not a String'
);
t['throws'](
function () { ES.CreateHTML('', '', nonString, ''); },
TypeError,
'attribute: ' + debug(nonString) + ' is not a String'
);
});
t.equal(
ES.CreateHTML(
{ toString: function () { return 'the string'; } },
'some HTML tag!',
''
),
'<some HTML tag!>the string</some HTML tag!>',
'works with an empty string attribute value'
);
t.equal(
ES.CreateHTML(
{ toString: function () { return 'the string'; } },
'some HTML tag!',
'attr',
'value "with quotes"'
),
'<some HTML tag! attr="value &quot;with quotes&quot;">the string</some HTML tag!>',
'works with an attribute, and a value with quotes'
);
t.end();
});
test('GetOwnPropertyKeys', function (t) {
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.GetOwnPropertyKeys(primitive, 'String'); },
TypeError,
'O: ' + debug(primitive) + ' is not an Object'
);
});
t['throws'](
function () { ES.GetOwnPropertyKeys({}, 'not string or symbol'); },
TypeError,
'Type: must be "String" or "Symbol"'
);
t.test('Symbols', { skip: !v.hasSymbols }, function (st) {
var O = { a: 1 };
O[Symbol.iterator] = true;
var s = Symbol('test');
Object.defineProperty(O, s, { enumerable: false, value: true });
st.deepEqual(
ES.GetOwnPropertyKeys(O, 'Symbol'),
[Symbol.iterator, s],
'works with Symbols, enumerable or not'
);
st.end();
});
t.test('non-enumerable names', { skip: !Object.defineProperty }, function (st) {
var O = { a: 1 };
Object.defineProperty(O, 'b', { enumerable: false, value: 2 });
if (v.hasSymbols) {
O[Symbol.iterator] = true;
}
st.deepEqual(
ES.GetOwnPropertyKeys(O, 'String').sort(),
['a', 'b'].sort(),
'works with Strings, enumerable or not'
);
st.end();
});
t.deepEqual(
ES.GetOwnPropertyKeys({ a: 1, b: 2 }, 'String').sort(),
['a', 'b'].sort(),
'works with enumerable keys'
);
t.end();
});
test('SymbolDescriptiveString', function (t) {
forEach(v.nonSymbolPrimitives.concat(v.objects), function (nonSymbol) {
t['throws'](
function () { ES.SymbolDescriptiveString(nonSymbol); },
TypeError,
debug(nonSymbol) + ' is not a Symbol'
);
});
t.test('Symbols', { skip: !v.hasSymbols }, function (st) {
st.equal(ES.SymbolDescriptiveString(Symbol()), 'Symbol()', 'undefined description');
st.equal(ES.SymbolDescriptiveString(Symbol('')), 'Symbol()', 'empty string description');
st.equal(ES.SymbolDescriptiveString(Symbol.iterator), 'Symbol(Symbol.iterator)', 'well-known symbol');
st.equal(ES.SymbolDescriptiveString(Symbol('foo')), 'Symbol(foo)', 'string description');
st.end();
});
t.end();
});
test('GetSubstitution', { skip: skips && skips.GetSubstitution }, function (t) {
forEach(v.nonStrings, function (nonString) {
t['throws'](
function () { ES.GetSubstitution(nonString, '', 0, [], ''); },
TypeError,
'`matched`: ' + debug(nonString) + ' is not a String'
);
t['throws'](
function () { ES.GetSubstitution('', nonString, 0, [], ''); },
TypeError,
'`str`: ' + debug(nonString) + ' is not a String'
);
t['throws'](
function () { ES.GetSubstitution('', '', 0, [], nonString); },
TypeError,
'`replacement`: ' + debug(nonString) + ' is not a String'
);
t['throws'](
function () { ES.GetSubstitution('', '', 0, [nonString], ''); },
TypeError,
'`captures`: ' + debug([nonString]) + ' is not an Array of strings'
);
});
forEach(v.nonIntegerNumbers.concat([-1, -42, -Infinity]), function (nonNonNegativeInteger) {
t['throws'](
function () { ES.GetSubstitution('', '', nonNonNegativeInteger, [], ''); },
TypeError,
'`position`: ' + debug(nonNonNegativeInteger) + ' is not a non-negative integer'
);
});
forEach(v.nonArrays, function (nonArray) {
t['throws'](
function () { ES.GetSubstitution('', '', 0, nonArray, ''); },
TypeError,
'`captures`: ' + debug(nonArray) + ' is not an Array'
);
});
t.equal(
ES.GetSubstitution('def', 'abcdefghi', 3, [], '123'),
'123',
'returns the substitution'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, [], '$$2$'),
'$2$',
'supports $$, and trailing $'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, [], '>$&<'),
'>abcdef<',
'supports $&'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, [], '>$`<'),
'><',
'supports $` at position 0'
);
t.equal(
ES.GetSubstitution('def', 'abcdefghi', 3, [], '>$`<'),
'>ab<',
'supports $` at position > 0'
);
t.equal(
ES.GetSubstitution('def', 'abcdefghi', 7, [], ">$'<"),
'><',
"supports $' at a position where there's less than `matched.length` chars left"
);
t.equal(
ES.GetSubstitution('def', 'abcdefghi', 3, [], ">$'<"),
'>ghi<',
"supports $' at a position where there's more than `matched.length` chars left"
);
for (var i = 0; i < 100; i += 1) {
var captures = [];
captures[i] = 'test';
if (i > 0) {
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, [], '>$' + i + '<'),
'>undefined<',
'supports $' + i + ' with no captures'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, [], '>$' + i),
'>undefined',
'supports $' + i + ' at the end of the replacement, with no captures'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, captures, '>$' + i + '<'),
'><',
'supports $' + i + ' with a capture at that index'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, captures, '>$' + i),
'>',
'supports $' + i + ' at the end of the replacement, with a capture at that index'
);
}
if (i < 10) {
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, [], '>$0' + i + '<'),
i === 0 ? '><' : '>undefined<',
'supports $0' + i + ' with no captures'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, [], '>$0' + i),
i === 0 ? '>' : '>undefined',
'supports $0' + i + ' at the end of the replacement, with no captures'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, captures, '>$0' + i + '<'),
'><',
'supports $0' + i + ' with a capture at that index'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, captures, '>$0' + i),
'>',
'supports $0' + i + ' at the end of the replacement, with a capture at that index'
);
}
}
t.end();
});
test('SecFromTime', function (t) {
var now = new Date();
t.equal(ES.SecFromTime(now.getTime()), now.getUTCSeconds(), 'second from Date timestamp matches getUTCSeconds');
t.end();
});
test('MinFromTime', function (t) {
var now = new Date();
t.equal(ES.MinFromTime(now.getTime()), now.getUTCMinutes(), 'minute from Date timestamp matches getUTCMinutes');
t.end();
});
test('HourFromTime', function (t) {
var now = new Date();
t.equal(ES.HourFromTime(now.getTime()), now.getUTCHours(), 'hour from Date timestamp matches getUTCHours');
t.end();
});
test('msFromTime', function (t) {
var now = new Date();
t.equal(ES.msFromTime(now.getTime()), now.getUTCMilliseconds(), 'ms from Date timestamp matches getUTCMilliseconds');
t.end();
});
var msPerSecond = 1e3;
var msPerMinute = 60 * msPerSecond;
var msPerHour = 60 * msPerMinute;
var msPerDay = 24 * msPerHour;
test('Day', function (t) {
var time = Date.UTC(2019, 8, 10, 2, 3, 4, 5);
var add = 2.5;
var later = new Date(time + (add * msPerDay));
t.equal(ES.Day(later.getTime()), ES.Day(time) + Math.floor(add), 'adding 2.5 days worth of ms, gives a Day delta of 2');
t.end();
});
test('TimeWithinDay', function (t) {
var time = Date.UTC(2019, 8, 10, 2, 3, 4, 5);
var add = 2.5;
var later = new Date(time + (add * msPerDay));
t.equal(ES.TimeWithinDay(later.getTime()), ES.TimeWithinDay(time) + (0.5 * msPerDay), 'adding 2.5 days worth of ms, gives a TimeWithinDay delta of +0.5');
t.end();
});
test('DayFromYear', function (t) {
t.equal(ES.DayFromYear(2021) - ES.DayFromYear(2020), 366, '2021 is a leap year, has 366 days');
t.equal(ES.DayFromYear(2020) - ES.DayFromYear(2019), 365, '2020 is not a leap year, has 365 days');
t.equal(ES.DayFromYear(2019) - ES.DayFromYear(2018), 365, '2019 is not a leap year, has 365 days');
t.equal(ES.DayFromYear(2018) - ES.DayFromYear(2017), 365, '2018 is not a leap year, has 365 days');
t.equal(ES.DayFromYear(2017) - ES.DayFromYear(2016), 366, '2017 is a leap year, has 366 days');
t.end();
});
test('TimeFromYear', function (t) {
for (var i = 1900; i < 2100; i += 1) {
t.equal(ES.TimeFromYear(i), Date.UTC(i, 0, 1), 'TimeFromYear matches a Date object’s year: ' + i);
}
t.end();
});
test('YearFromTime', function (t) {
for (var i = 1900; i < 2100; i += 1) {
t.equal(ES.YearFromTime(Date.UTC(i, 0, 1)), i, 'YearFromTime matches a Date object’s year on 1/1: ' + i);
t.equal(ES.YearFromTime(Date.UTC(i, 10, 1)), i, 'YearFromTime matches a Date object’s year on 10/1: ' + i);
}
t.end();
});
test('WeekDay', function (t) {
var now = new Date();
var today = now.getUTCDay();
for (var i = 0; i < 7; i += 1) {
var weekDay = ES.WeekDay(now.getTime() + (i * msPerDay));
t.equal(weekDay, (today + i) % 7, i + ' days after today (' + today + '), WeekDay is ' + weekDay);
}
t.end();
});
test('DaysInYear', function (t) {
t.equal(ES.DaysInYear(2021), 365, '2021 is not a leap year');
t.equal(ES.DaysInYear(2020), 366, '2020 is a leap year');
t.equal(ES.DaysInYear(2019), 365, '2019 is not a leap year');
t.equal(ES.DaysInYear(2018), 365, '2018 is not a leap year');
t.equal(ES.DaysInYear(2017), 365, '2017 is not a leap year');
t.equal(ES.DaysInYear(2016), 366, '2016 is a leap year');
t.end();
});
test('InLeapYear', function (t) {
t.equal(ES.InLeapYear(Date.UTC(2021, 0, 1)), 0, '2021 is not a leap year');
t.equal(ES.InLeapYear(Date.UTC(2020, 0, 1)), 1, '2020 is a leap year');
t.equal(ES.InLeapYear(Date.UTC(2019, 0, 1)), 0, '2019 is not a leap year');
t.equal(ES.InLeapYear(Date.UTC(2018, 0, 1)), 0, '2018 is not a leap year');
t.equal(ES.InLeapYear(Date.UTC(2017, 0, 1)), 0, '2017 is not a leap year');
t.equal(ES.InLeapYear(Date.UTC(2016, 0, 1)), 1, '2016 is a leap year');
t.end();
});
test('DayWithinYear', function (t) {
t.equal(ES.DayWithinYear(Date.UTC(2019, 0, 1)), 0, '1/1 is the 1st day');
t.equal(ES.DayWithinYear(Date.UTC(2019, 11, 31)), 364, '12/31 is the 365th day in a non leap year');
t.equal(ES.DayWithinYear(Date.UTC(2016, 11, 31)), 365, '12/31 is the 366th day in a leap year');
t.end();
});
test('MonthFromTime', function (t) {
t.equal(ES.MonthFromTime(Date.UTC(2019, 0, 1)), 0, 'non-leap: 1/1 gives January');
t.equal(ES.MonthFromTime(Date.UTC(2019, 0, 31)), 0, 'non-leap: 1/31 gives January');
t.equal(ES.MonthFromTime(Date.UTC(2019, 1, 1)), 1, 'non-leap: 2/1 gives February');
t.equal(ES.MonthFromTime(Date.UTC(2019, 1, 28)), 1, 'non-leap: 2/28 gives February');
t.equal(ES.MonthFromTime(Date.UTC(2019, 1, 29)), 2, 'non-leap: 2/29 gives March');
t.equal(ES.MonthFromTime(Date.UTC(2019, 2, 1)), 2, 'non-leap: 3/1 gives March');
t.equal(ES.MonthFromTime(Date.UTC(2019, 2, 31)), 2, 'non-leap: 3/31 gives March');
t.equal(ES.MonthFromTime(Date.UTC(2019, 3, 1)), 3, 'non-leap: 4/1 gives April');
t.equal(ES.MonthFromTime(Date.UTC(2019, 3, 30)), 3, 'non-leap: 4/30 gives April');
t.equal(ES.MonthFromTime(Date.UTC(2019, 4, 1)), 4, 'non-leap: 5/1 gives May');
t.equal(ES.MonthFromTime(Date.UTC(2019, 4, 31)), 4, 'non-leap: 5/31 gives May');
t.equal(ES.MonthFromTime(Date.UTC(2019, 5, 1)), 5, 'non-leap: 6/1 gives June');
t.equal(ES.MonthFromTime(Date.UTC(2019, 5, 30)), 5, 'non-leap: 6/30 gives June');
t.equal(ES.MonthFromTime(Date.UTC(2019, 6, 1)), 6, 'non-leap: 7/1 gives July');
t.equal(ES.MonthFromTime(Date.UTC(2019, 6, 31)), 6, 'non-leap: 7/31 gives July');
t.equal(ES.MonthFromTime(Date.UTC(2019, 7, 1)), 7, 'non-leap: 8/1 gives August');
t.equal(ES.MonthFromTime(Date.UTC(2019, 7, 30)), 7, 'non-leap: 8/30 gives August');
t.equal(ES.MonthFromTime(Date.UTC(2019, 8, 1)), 8, 'non-leap: 9/1 gives September');
t.equal(ES.MonthFromTime(Date.UTC(2019, 8, 30)), 8, 'non-leap: 9/30 gives September');
t.equal(ES.MonthFromTime(Date.UTC(2019, 9, 1)), 9, 'non-leap: 10/1 gives October');
t.equal(ES.MonthFromTime(Date.UTC(2019, 9, 31)), 9, 'non-leap: 10/31 gives October');
t.equal(ES.MonthFromTime(Date.UTC(2019, 10, 1)), 10, 'non-leap: 11/1 gives November');
t.equal(ES.MonthFromTime(Date.UTC(2019, 10, 30)), 10, 'non-leap: 11/30 gives November');
t.equal(ES.MonthFromTime(Date.UTC(2019, 11, 1)), 11, 'non-leap: 12/1 gives December');
t.equal(ES.MonthFromTime(Date.UTC(2019, 11, 31)), 11, 'non-leap: 12/31 gives December');
t.equal(ES.MonthFromTime(Date.UTC(2016, 0, 1)), 0, 'leap: 1/1 gives January');
t.equal(ES.MonthFromTime(Date.UTC(2016, 0, 31)), 0, 'leap: 1/31 gives January');
t.equal(ES.MonthFromTime(Date.UTC(2016, 1, 1)), 1, 'leap: 2/1 gives February');
t.equal(ES.MonthFromTime(Date.UTC(2016, 1, 28)), 1, 'leap: 2/28 gives February');
t.equal(ES.MonthFromTime(Date.UTC(2016, 1, 29)), 1, 'leap: 2/29 gives February');
t.equal(ES.MonthFromTime(Date.UTC(2016, 2, 1)), 2, 'leap: 3/1 gives March');
t.equal(ES.MonthFromTime(Date.UTC(2016, 2, 31)), 2, 'leap: 3/31 gives March');
t.equal(ES.MonthFromTime(Date.UTC(2016, 3, 1)), 3, 'leap: 4/1 gives April');
t.equal(ES.MonthFromTime(Date.UTC(2016, 3, 30)), 3, 'leap: 4/30 gives April');
t.equal(ES.MonthFromTime(Date.UTC(2016, 4, 1)), 4, 'leap: 5/1 gives May');
t.equal(ES.MonthFromTime(Date.UTC(2016, 4, 31)), 4, 'leap: 5/31 gives May');
t.equal(ES.MonthFromTime(Date.UTC(2016, 5, 1)), 5, 'leap: 6/1 gives June');
t.equal(ES.MonthFromTime(Date.UTC(2016, 5, 30)), 5, 'leap: 6/30 gives June');
t.equal(ES.MonthFromTime(Date.UTC(2016, 6, 1)), 6, 'leap: 7/1 gives July');
t.equal(ES.MonthFromTime(Date.UTC(2016, 6, 31)), 6, 'leap: 7/31 gives July');
t.equal(ES.MonthFromTime(Date.UTC(2016, 7, 1)), 7, 'leap: 8/1 gives August');
t.equal(ES.MonthFromTime(Date.UTC(2016, 7, 30)), 7, 'leap: 8/30 gives August');
t.equal(ES.MonthFromTime(Date.UTC(2016, 8, 1)), 8, 'leap: 9/1 gives September');
t.equal(ES.MonthFromTime(Date.UTC(2016, 8, 30)), 8, 'leap: 9/30 gives September');
t.equal(ES.MonthFromTime(Date.UTC(2016, 9, 1)), 9, 'leap: 10/1 gives October');
t.equal(ES.MonthFromTime(Date.UTC(2016, 9, 31)), 9, 'leap: 10/31 gives October');
t.equal(ES.MonthFromTime(Date.UTC(2016, 10, 1)), 10, 'leap: 11/1 gives November');
t.equal(ES.MonthFromTime(Date.UTC(2016, 10, 30)), 10, 'leap: 11/30 gives November');
t.equal(ES.MonthFromTime(Date.UTC(2016, 11, 1)), 11, 'leap: 12/1 gives December');
t.equal(ES.MonthFromTime(Date.UTC(2016, 11, 31)), 11, 'leap: 12/31 gives December');
t.end();
});
test('DateFromTime', function (t) {
var i;
for (i = 1; i <= 28; i += 1) {
t.equal(ES.DateFromTime(Date.UTC(2019, 1, i)), i, '2019.02.' + i + ' is date ' + i);
}
for (i = 1; i <= 29; i += 1) {
t.equal(ES.DateFromTime(Date.UTC(2016, 1, i)), i, '2016.02.' + i + ' is date ' + i);
}
for (i = 1; i <= 30; i += 1) {
t.equal(ES.DateFromTime(Date.UTC(2019, 8, i)), i, '2019.09.' + i + ' is date ' + i);
}
for (i = 1; i <= 31; i += 1) {
t.equal(ES.DateFromTime(Date.UTC(2019, 9, i)), i, '2019.10.' + i + ' is date ' + i);
}
t.end();
});
test('MakeDay', function (t) {
var day2015 = 16687;
t.equal(ES.MakeDay(2015, 8, 9), day2015, '2015.09.09 is day 16687');
var day2016 = day2015 + 366; // 2016 is a leap year
t.equal(ES.MakeDay(2016, 8, 9), day2016, '2015.09.09 is day 17053');
var day2017 = day2016 + 365;
t.equal(ES.MakeDay(2017, 8, 9), day2017, '2017.09.09 is day 17418');
var day2018 = day2017 + 365;
t.equal(ES.MakeDay(2018, 8, 9), day2018, '2018.09.09 is day 17783');
var day2019 = day2018 + 365;
t.equal(ES.MakeDay(2019, 8, 9), day2019, '2019.09.09 is day 18148');
t.end();
});
test('MakeDate', function (t) {
forEach(v.infinities.concat(NaN), function (nonFiniteNumber) {
t.ok(is(ES.MakeDate(nonFiniteNumber, 0), NaN), debug(nonFiniteNumber) + ' is not a finite `day`');
t.ok(is(ES.MakeDate(0, nonFiniteNumber), NaN), debug(nonFiniteNumber) + ' is not a finite `time`');
});
t.equal(ES.MakeDate(0, 0), 0, 'zero day and zero time is zero date');
t.equal(ES.MakeDate(0, 123), 123, 'zero day and nonzero time is a date of the "time"');
t.equal(ES.MakeDate(1, 0), msPerDay, 'day of 1 and zero time is a date of "ms per day"');
t.equal(ES.MakeDate(3, 0), 3 * msPerDay, 'day of 3 and zero time is a date of thrice "ms per day"');
t.equal(ES.MakeDate(1, 123), msPerDay + 123, 'day of 1 and nonzero time is a date of "ms per day" plus the "time"');
t.equal(ES.MakeDate(3, 123), (3 * msPerDay) + 123, 'day of 3 and nonzero time is a date of thrice "ms per day" plus the "time"');
t.end();
});
test('MakeTime', function (t) {
forEach(v.infinities.concat(NaN), function (nonFiniteNumber) {
t.ok(is(ES.MakeTime(nonFiniteNumber, 0, 0, 0), NaN), debug(nonFiniteNumber) + ' is not a finite `hour`');
t.ok(is(ES.MakeTime(0, nonFiniteNumber, 0, 0), NaN), debug(nonFiniteNumber) + ' is not a finite `min`');
t.ok(is(ES.MakeTime(0, 0, nonFiniteNumber, 0), NaN), debug(nonFiniteNumber) + ' is not a finite `sec`');
t.ok(is(ES.MakeTime(0, 0, 0, nonFiniteNumber), NaN), debug(nonFiniteNumber) + ' is not a finite `ms`');
});
t.equal(
ES.MakeTime(1.2, 2.3, 3.4, 4.5),
(1 * msPerHour) + (2 * msPerMinute) + (3 * msPerSecond) + 4,
'all numbers are converted to integer, multiplied by the right number of ms, and summed'
);
t.end();
});
test('TimeClip', function (t) {
forEach(v.infinities.concat(NaN), function (nonFiniteNumber) {
t.ok(is(ES.TimeClip(nonFiniteNumber), NaN), debug(nonFiniteNumber) + ' is not a finite `time`');
});
t.ok(is(ES.TimeClip(8.64e15 + 1), NaN), '8.64e15 is the largest magnitude considered "finite"');
t.ok(is(ES.TimeClip(-8.64e15 - 1), NaN), '-8.64e15 is the largest magnitude considered "finite"');
forEach(v.zeroes.concat([-10, 10, Date.now()]), function (time) {
t.equal(ES.TimeClip(time), time, debug(time) + ' is a time of ' + debug(time));
});
t.end();
});
test('modulo', function (t) {
t.equal(3 % 2, 1, '+3 % 2 is +1');
t.equal(ES.modulo(3, 2), 1, '+3 mod 2 is +1');
t.equal(-3 % 2, -1, '-3 % 2 is -1');
t.equal(ES.modulo(-3, 2), 1, '-3 mod 2 is +1');
t.end();
});
test('ToDateString', function (t) {
forEach(v.nonNumbers, function (nonNumber) {
t['throws'](
function () { ES.ToDateString(nonNumber); },
TypeError,
debug(nonNumber) + ' is not a Number'
);
});
t.equal(ES.ToDateString(NaN), 'Invalid Date', 'NaN becomes "Invalid Date"');
var now = Date.now();
t.equal(ES.ToDateString(now), Date(now), 'any timestamp becomes `Date(timestamp)`');
t.end();
});
test('CreateListFromArrayLike', function (t) {
forEach(v.primitives, function (nonObject) {
t['throws'](
function () { ES.CreateListFromArrayLike(nonObject); },
TypeError,
debug(nonObject) + ' is not an Object'
);
});
forEach(v.nonArrays, function (nonArray) {
t['throws'](
function () { ES.CreateListFromArrayLike({}, nonArray); },
TypeError,
debug(nonArray) + ' is not an Array'
);
});
t.deepEqual(
ES.CreateListFromArrayLike({ length: 2, 0: 'a', 1: 'b', 2: 'c' }),
['a', 'b'],
'arraylike stops at the length'
);
t.end();
});
test('GetPrototypeFromConstructor', function (t) {
forEach(v.nonFunctions, function (nonFunction) {
t['throws'](
function () { ES.GetPrototypeFromConstructor(nonFunction, '%Array%'); },
TypeError,
debug(nonFunction) + ' is not a constructor'
);
});
forEach(arrowFns, function (arrowFn) {
t['throws'](
function () { ES.GetPrototypeFromConstructor(arrowFn, '%Array%'); },
TypeError,
debug(arrowFn) + ' is not a constructor'
);
});
var f = function () {};
t.equal(
ES.GetPrototypeFromConstructor(f, '%Array.prototype%'),
f.prototype,
'function with normal `prototype` property returns it'
);
forEach([true, 'foo', 42], function (truthyPrimitive) {
f.prototype = truthyPrimitive;
t.equal(
ES.GetPrototypeFromConstructor(f, '%Array.prototype%'),
Array.prototype,
'function with non-object `prototype` property (' + debug(truthyPrimitive) + ') returns default intrinsic'
);
});
t.end();
});
var getNamelessFunction = function () {
var f = Object(function () {});
try {
delete f.name;
} catch (e) { /**/ }
return f;
};
test('SetFunctionName', function (t) {
t.test('non-extensible function', { skip: !Object.preventExtensions }, function (st) {
var f = getNamelessFunction();
Object.preventExtensions(f);
st['throws'](
function () { ES.SetFunctionName(f, ''); },
TypeError,
'throws on a non-extensible function'
);
st.end();
});
t['throws'](
function () { ES.SetFunctionName(function g() {}, ''); },
TypeError,
'throws if function has an own `name` property'
);
forEach(v.nonPropertyKeys, function (nonPropertyKey) {
t['throws'](
function () { ES.SetFunctionName(getNamelessFunction(), nonPropertyKey); },
TypeError,
debug(nonPropertyKey) + ' is not a Symbol or String'
);
});
t.test('symbols', { skip: !v.hasSymbols || has(getNamelessFunction(), 'name') }, function (st) {
var pairs = [
[Symbol(), ''],
[Symbol(undefined), ''],
[Symbol(null), '[null]'],
[Symbol(''), getInferredName ? '[]' : ''],
[Symbol.iterator, '[Symbol.iterator]'],
[Symbol('foo'), '[foo]']
];
forEach(pairs, function (pair) {
var sym = pair[0];
var desc = pair[1];
var f = getNamelessFunction();
ES.SetFunctionName(f, sym);
st.equal(f.name, desc, debug(sym) + ' yields a name of ' + debug(desc));
});
st.end();
});
var f = getNamelessFunction();
t.test('when names are configurable', { skip: has(f, 'name') }, function (st) {
// without prefix
st.notEqual(f.name, 'foo', 'precondition');
ES.SetFunctionName(f, 'foo');
st.equal(f.name, 'foo', 'function name is set without a prefix');
// with prefix
var g = getNamelessFunction();
st.notEqual(g.name, 'pre- foo', 'precondition');
ES.SetFunctionName(g, 'foo', 'pre-');
st.equal(g.name, 'pre- foo', 'function name is set with a prefix');
st.end();
});
t.end();
});
};
var es2016 = function ES2016(ES, ops, expectedMissing, skips) {
es2015(ES, ops, expectedMissing, skips);
test('SameValueNonNumber', function (t) {
var willThrow = [
[3, 4],
[NaN, 4],
[4, ''],
['abc', true],
[{}, false]
];
forEach(willThrow, function (nums) {
t['throws'](function () { return ES.SameValueNonNumber.apply(ES, nums); }, TypeError, 'value must be same type and non-number');
});
forEach(v.objects.concat(v.nonNumberPrimitives), function (val) {
t.equal(val === val, ES.SameValueNonNumber(val, val), debug(val) + ' is SameValueNonNumber to itself');
});
t.end();
});
test('IterableToArrayLike', { skip: skips && skips.IterableToArrayLike }, function (t) {
t.test('custom iterables', { skip: !v.hasSymbols }, function (st) {
var O = {};
O[Symbol.iterator] = function () {
var i = -1;
return {
next: function () {
i += 1;
return {
done: i >= 5,
value: i
};
}
};
};
st.deepEqual(
ES.IterableToArrayLike(O),
[0, 1, 2, 3, 4],
'Symbol.iterator method is called and values collected'
);
st.end();
});
t.deepEqual(ES.IterableToArrayLike('abc'), ['a', 'b', 'c'], 'a string of code units spreads');
t.deepEqual(ES.IterableToArrayLike('💩'), ['💩'], 'a string of code points spreads');
t.deepEqual(ES.IterableToArrayLike('a💩c'), ['a', '💩', 'c'], 'a string of code points and units spreads');
var arr = [1, 2, 3];
t.deepEqual(ES.IterableToArrayLike(arr), arr, 'an array becomes a similar array');
t.notEqual(ES.IterableToArrayLike(arr), arr, 'an array becomes a different, but similar, array');
var O = {};
t.equal(ES.IterableToArrayLike(O), O, 'a non-iterable non-array non-string object is returned directly');
t.end();
});
test('OrdinaryGetPrototypeOf', function (t) {
t.equal(ES.OrdinaryGetPrototypeOf([]), Array.prototype, 'array [[Prototype]] is Array.prototype');
t.equal(ES.OrdinaryGetPrototypeOf({}), Object.prototype, 'object [[Prototype]] is Object.prototype');
t.equal(ES.OrdinaryGetPrototypeOf(/a/g), RegExp.prototype, 'regex [[Prototype]] is RegExp.prototype');
t.equal(ES.OrdinaryGetPrototypeOf(Object('')), String.prototype, 'boxed string [[Prototype]] is String.prototype');
t.equal(ES.OrdinaryGetPrototypeOf(Object(42)), Number.prototype, 'boxed number [[Prototype]] is Number.prototype');
t.equal(ES.OrdinaryGetPrototypeOf(Object(true)), Boolean.prototype, 'boxed boolean [[Prototype]] is Boolean.prototype');
if (v.hasSymbols) {
t.equal(ES.OrdinaryGetPrototypeOf(Object(Symbol.iterator)), Symbol.prototype, 'boxed symbol [[Prototype]] is Symbol.prototype');
}
forEach(v.primitives, function (primitive) {
t['throws'](
function () { ES.OrdinaryGetPrototypeOf(primitive); },
TypeError,
debug(primitive) + ' is not an Object'
);
});
t.end();
});
test('OrdinarySetPrototypeOf', function (t) {
var a = [];
var proto = {};
t.equal(ES.OrdinaryGetPrototypeOf(a), Array.prototype, 'precondition');
t.equal(ES.OrdinarySetPrototypeOf(a, proto), true, 'setting prototype is successful');
t.equal(ES.OrdinaryGetPrototypeOf(a), proto, 'postcondition');
t.end();
});
};
var es2017 = function ES2017(ES, ops, expectedMissing, skips) {
es2016(ES, ops, expectedMissing, assign({}, skips, {
EnumerableOwnNames: true,
IterableToArrayLike: true
}));
test('ToIndex', function (t) {
t.ok(is(ES.ToIndex(), 0), 'no value gives 0');
t.ok(is(ES.ToIndex(undefined), 0), 'undefined value gives 0');
t['throws'](function () { ES.ToIndex(-1); }, RangeError, 'negative numbers throw');
t['throws'](function () { ES.ToIndex(MAX_SAFE_INTEGER + 1); }, RangeError, 'too large numbers throw');
t.equal(ES.ToIndex(3), 3, 'numbers work');
t.equal(ES.ToIndex(v.valueOfOnlyObject), 4, 'coercible objects are coerced');
t.end();
});
test('EnumerableOwnProperties', { skip: skips && skips.EnumerableOwnProperties }, function (t) {
var obj = testEnumerableOwnNames(t, function (O) {
return ES.EnumerableOwnProperties(O, 'key');
});
t.deepEqual(
ES.EnumerableOwnProperties(obj, 'value'),
[obj.own],
'returns enumerable own values'
);
t.deepEqual(
ES.EnumerableOwnProperties(obj, 'key+value'),
[['own', obj.own]],
'returns enumerable own entries'
);
t.end();
});
test('IterableToList', function (t) {
var customIterator = function () {
var i = -1;
return {
next: function () {
i += 1;
return {
done: i >= 5,
value: i
};
}
};
};
t.deepEqual(
ES.IterableToList({}, customIterator),
[0, 1, 2, 3, 4],
'iterator method is called and values collected'
);
t.test('Symbol support', { skip: !v.hasSymbols }, function (st) {
st.deepEqual(ES.IterableToList('abc', String.prototype[Symbol.iterator]), ['a', 'b', 'c'], 'a string of code units spreads');
st.deepEqual(ES.IterableToList('☃', String.prototype[Symbol.iterator]), ['☃'], 'a string of code points spreads');
var arr = [1, 2, 3];
st.deepEqual(ES.IterableToList(arr, arr[Symbol.iterator]), arr, 'an array becomes a similar array');
st.notEqual(ES.IterableToList(arr, arr[Symbol.iterator]), arr, 'an array becomes a different, but similar, array');
st.end();
});
t['throws'](
function () { ES.IterableToList({}, void 0); },
TypeError,
'non-function iterator method'
);
t.end();
});
};
var es2018 = function ES2018(ES, ops, expectedMissing, skips) {
es2017(ES, ops, expectedMissing, assign({}, skips, {
EnumerableOwnProperties: true,
GetSubstitution: true,
IsPropertyDescriptor: true
}));
test('thisSymbolValue', function (t) {
forEach(v.nonSymbolPrimitives.concat(v.objects), function (nonSymbol) {
t['throws'](
function () { ES.thisSymbolValue(nonSymbol); },
v.hasSymbols ? TypeError : SyntaxError,
debug(nonSymbol) + ' is not a Symbol'
);
});
t.test('no native Symbols', { skip: v.hasSymbols }, function (st) {
forEach(v.objects.concat(v.primitives), function (value) {
st['throws'](
function () { ES.thisSymbolValue(value); },
SyntaxError,
'Symbols are not supported'
);
});
st.end();
});
t.test('symbol values', { skip: !v.hasSymbols }, function (st) {
forEach(v.symbols, function (symbol) {
st.equal(ES.thisSymbolValue(symbol), symbol, 'Symbol value of ' + debug(symbol) + ' is same symbol');
st.equal(
ES.thisSymbolValue(Object(symbol)),
symbol,
'Symbol value of ' + debug(Object(symbol)) + ' is ' + debug(symbol)
);
});
st.end();
});
t.end();
});
test('IsStringPrefix', function (t) {
forEach(v.nonStrings, function (nonString) {
t['throws'](
function () { ES.IsStringPrefix(nonString, 'a'); },
TypeError,
'first arg: ' + debug(nonString) + ' is not a string'
);
t['throws'](
function () { ES.IsStringPrefix('a', nonString); },
TypeError,
'second arg: ' + debug(nonString) + ' is not a string'
);
});
forEach(v.strings, function (string) {
t.equal(ES.IsStringPrefix(string, string), true, debug(string) + ' is a prefix of itself');
t.equal(ES.IsStringPrefix('', string), true, 'the empty string is a prefix of everything');
});
t.equal(ES.IsStringPrefix('abc', 'abcd'), true, '"abc" is a prefix of "abcd"');
t.equal(ES.IsStringPrefix('abcd', 'abc'), false, '"abcd" is not a prefix of "abc"');
t.equal(ES.IsStringPrefix('a', 'bc'), false, '"a" is not a prefix of "bc"');
t.end();
});
test('NumberToString', function (t) {
forEach(v.nonNumbers, function (nonNumber) {
t['throws'](
function () { ES.NumberToString(nonNumber); },
TypeError,
debug(nonNumber) + ' is not a Number'
);
});
forEach(v.numbers, function (number) {
t.equal(ES.NumberToString(number), String(number), debug(number) + ' stringifies to ' + number);
});
t.end();
});
test('CopyDataProperties', function (t) {
t.test('first argument: target', function (st) {
forEach(v.primitives, function (primitive) {
st['throws'](
function () { ES.CopyDataProperties(primitive, {}, []); },
TypeError,
debug(primitive) + ' is not an Object'
);
});
st.end();
});
t.test('second argument: source', function (st) {
var frozenTarget = Object.freeze ? Object.freeze({}) : {};
forEach(v.nullPrimitives, function (nullish) {
st.equal(
ES.CopyDataProperties(frozenTarget, nullish, []),
frozenTarget,
debug(nullish) + ' "source" yields identical, unmodified target'
);
});
forEach(v.nonNullPrimitives, function (objectCoercible) {
var target = {};
var result = ES.CopyDataProperties(target, objectCoercible, []);
st.equal(result, target, 'result === target');
st.deepEqual(keys(result), keys(Object(objectCoercible)), 'target ends up with keys of ' + debug(objectCoercible));
});
st.end();
});
t.test('third argument: excludedItems', function (st) {
forEach(v.objects.concat(v.primitives), function (nonArray) {
st['throws'](
function () { ES.CopyDataProperties({}, {}, nonArray); },
TypeError,
debug(nonArray) + ' is not an Array'
);
});
forEach(v.nonPropertyKeys, function (nonPropertyKey) {
st['throws'](
function () { ES.CopyDataProperties({}, {}, [nonPropertyKey]); },
TypeError,
debug(nonPropertyKey) + ' is not a Property Key'
);
});
var result = ES.CopyDataProperties({}, { a: 1, b: 2, c: 3 }, ['b']);
st.deepEqual(keys(result), ['a', 'c'], 'excluded string keys are excluded');
st.test('excluding symbols', { skip: !v.hasSymbols }, function (s2t) {
var source = {};
forEach(v.symbols, function (symbol) {
source[symbol] = true;
});
var includedSymbols = v.symbols.slice(1);
var excludedSymbols = v.symbols.slice(0, 1);
var target = ES.CopyDataProperties({}, source, excludedSymbols);
forEach(includedSymbols, function (symbol) {
s2t.equal(has(target, symbol), true, debug(symbol) + ' is included');
});
forEach(excludedSymbols, function (symbol) {
s2t.equal(has(target, symbol), false, debug(symbol) + ' is excluded');
});
s2t.end();
});
st.end();
});
t.end();
});
test('PromiseResolve', function (t) {
t.test('Promises unsupported', { skip: typeof Promise === 'function' }, function (st) {
st['throws'](
function () { ES.PromiseResolve(); },
SyntaxError,
'Promises are not supported'
);
st.end();
});
t.test('Promises supported', { skip: typeof Promise !== 'function' }, function (st) {
st.plan(2);
var a = {};
var b = {};
var fulfilled = Promise.resolve(a);
var rejected = Promise.reject(b);
ES.PromiseResolve(Promise, fulfilled).then(function (x) {
st.equal(x, a, 'fulfilled promise resolves to fulfilled');
});
ES.PromiseResolve(Promise, rejected)['catch'](function (e) {
st.equal(e, b, 'rejected promise resolves to rejected');
});
});
t.end();
});
test('EnumerableOwnPropertyNames', { skip: skips && skips.EnumerableOwnPropertyNames }, function (t) {
var obj = testEnumerableOwnNames(t, function (O) {
return ES.EnumerableOwnPropertyNames(O, 'key');
});
t.deepEqual(
ES.EnumerableOwnPropertyNames(obj, 'value'),
[obj.own],
'returns enumerable own values'
);
t.deepEqual(
ES.EnumerableOwnPropertyNames(obj, 'key+value'),
[['own', obj.own]],
'returns enumerable own entries'
);
t.end();
});
test('IsPromise', { skip: typeof Promise !== 'function' }, function (t) {
forEach(v.objects.concat(v.primitives), function (nonPromise) {
t.equal(ES.IsPromise(nonPromise), false, debug(nonPromise) + ' is not a Promise');
});
var thenable = { then: Promise.prototype.then };
t.equal(ES.IsPromise(thenable), false, 'generic thenable is not a Promise');
t.equal(ES.IsPromise(Promise.resolve()), true, 'Promise is a Promise');
t.end();
});
test('GetSubstitution (ES2018+)', function (t) {
forEach(v.nonStrings, function (nonString) {
t['throws'](
function () { ES.GetSubstitution(nonString, '', 0, [], undefined, ''); },
TypeError,
'`matched`: ' + debug(nonString) + ' is not a String'
);
t['throws'](
function () { ES.GetSubstitution('', nonString, 0, [], undefined, ''); },
TypeError,
'`str`: ' + debug(nonString) + ' is not a String'
);
t['throws'](
function () { ES.GetSubstitution('', '', 0, [], undefined, nonString); },
TypeError,
'`replacement`: ' + debug(nonString) + ' is not a String'
);
t['throws'](
function () { ES.GetSubstitution('', '', 0, [nonString], undefined, ''); },
TypeError,
'`captures`: ' + debug([nonString]) + ' is not an Array of strings'
);
});
forEach(v.nonIntegerNumbers.concat([-1, -42, -Infinity]), function (nonNonNegativeInteger) {
t['throws'](
function () { ES.GetSubstitution('', '', nonNonNegativeInteger, [], undefined, ''); },
TypeError,
'`position`: ' + debug(nonNonNegativeInteger) + ' is not a non-negative integer'
);
});
forEach(v.nonArrays, function (nonArray) {
t['throws'](
function () { ES.GetSubstitution('', '', 0, nonArray, undefined, ''); },
TypeError,
'`captures`: ' + debug(nonArray) + ' is not an Array'
);
});
t.equal(
ES.GetSubstitution('def', 'abcdefghi', 3, [], undefined, '123'),
'123',
'returns the substitution'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, [], undefined, '$$2$'),
'$2$',
'supports $$, and trailing $'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, [], undefined, '>$&<'),
'>abcdef<',
'supports $&'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, [], undefined, '>$`<'),
'><',
'supports $` at position 0'
);
t.equal(
ES.GetSubstitution('def', 'abcdefghi', 3, [], undefined, '>$`<'),
'>ab<',
'supports $` at position > 0'
);
t.equal(
ES.GetSubstitution('def', 'abcdefghi', 7, [], undefined, ">$'<"),
'><',
"supports $' at a position where there's less than `matched.length` chars left"
);
t.equal(
ES.GetSubstitution('def', 'abcdefghi', 3, [], undefined, ">$'<"),
'>ghi<',
"supports $' at a position where there's more than `matched.length` chars left"
);
for (var i = 0; i < 100; i += 1) {
var captures = [];
captures[i] = 'test';
if (i > 0) {
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, [], undefined, '>$' + i + '<'),
'>undefined<',
'supports $' + i + ' with no captures'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, [], undefined, '>$' + i),
'>undefined',
'supports $' + i + ' at the end of the replacement, with no captures'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, captures, undefined, '>$' + i + '<'),
'><',
'supports $' + i + ' with a capture at that index'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, captures, undefined, '>$' + i),
'>',
'supports $' + i + ' at the end of the replacement, with a capture at that index'
);
}
if (i < 10) {
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, [], undefined, '>$0' + i + '<'),
i === 0 ? '><' : '>undefined<',
'supports $0' + i + ' with no captures'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, [], undefined, '>$0' + i),
i === 0 ? '>' : '>undefined',
'supports $0' + i + ' at the end of the replacement, with no captures'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, captures, undefined, '>$0' + i + '<'),
'><',
'supports $0' + i + ' with a capture at that index'
);
t.equal(
ES.GetSubstitution('abcdef', 'abcdefghi', 0, captures, undefined, '>$0' + i),
'>',
'supports $0' + i + ' at the end of the replacement, with a capture at that index'
);
}
}
t.end();
});
test('DateString', function (t) {
forEach(v.nonNumbers.concat(NaN), function (nonNumberOrNaN) {
t['throws'](
function () { ES.DateString(nonNumberOrNaN); },
TypeError,
debug(nonNumberOrNaN) + ' is not a non-NaN Number'
);
});
t.equal(ES.DateString(Date.UTC(2019, 8, 10, 7, 8, 9)), 'Tue Sep 10 2019');
t.equal(ES.DateString(Date.UTC(2016, 1, 29, 7, 8, 9)), 'Mon Feb 29 2016'); // leap day
t.end();
});
test('TimeString', function (t) {
forEach(v.nonNumbers.concat(NaN), function (nonNumberOrNaN) {
t['throws'](
function () { ES.TimeString(nonNumberOrNaN); },
TypeError,
debug(nonNumberOrNaN) + ' is not a non-NaN Number'
);
});
var tv = Date.UTC(2019, 8, 10, 7, 8, 9);
t.equal(ES.TimeString(tv), '07:08:09 GMT');
t.end();
});
};
var es2019 = function ES2018(ES, ops, expectedMissing, skips) {
es2018(ES, ops, expectedMissing, assign({}, skips, {
}));
test('AddEntriesFromIterable', function (t) {
t['throws'](
function () { ES.AddEntriesFromIterable({}, undefined, function () {}); },
TypeError,
'iterable must not be undefined'
);
t['throws'](
function () { ES.AddEntriesFromIterable({}, null, function () {}); },
TypeError,
'iterable must not be null'
);
forEach(v.nonFunctions, function (nonFunction) {
t['throws'](
function () { ES.AddEntriesFromIterable({}, {}, nonFunction); },
TypeError,
debug(nonFunction) + ' is not a function'
);
});
t.test('Symbol support', { skip: !v.hasSymbols }, function (st) {
st.plan(4);
var O = {};
st.equal(ES.AddEntriesFromIterable(O, [], function () {}), O, 'returns the target');
var adder = function (key, value) {
st.equal(this, O, 'adder gets proper receiver');
st.equal(key, 0, 'k is key');
st.equal(value, 'a', 'v is value');
};
ES.AddEntriesFromIterable(O, ['a'].entries(), adder);
st.end();
});
t.end();
});
test('FlattenIntoArray', function (t) {
t.test('no mapper function', function (st) {
var testDepth = function testDepth(tt, depth, expected) {
var a = [];
var o = [[1], 2, , [[3]], [], 4, [[[[5]]]]]; // eslint-disable-line no-sparse-arrays
ES.FlattenIntoArray(a, o, o.length, 0, depth);
tt.deepEqual(a, expected, 'depth: ' + depth);
};
testDepth(st, 1, [1, 2, [3], 4, [[[5]]]]);
testDepth(st, 2, [1, 2, 3, 4, [[5]]]);
testDepth(st, 3, [1, 2, 3, 4, [5]]);
testDepth(st, 4, [1, 2, 3, 4, 5]);
testDepth(st, Infinity, [1, 2, 3, 4, 5]);
st.end();
});
t.test('mapper function', function (st) {
var testMapper = function testMapper(tt, mapper, expected, thisArg) {
var a = [];
var o = [[1], 2, , [[3]], [], 4, [[[[5]]]]]; // eslint-disable-line no-sparse-arrays
ES.FlattenIntoArray(a, o, o.length, 0, 1, mapper, thisArg);
tt.deepEqual(a, expected);
};
var double = function double(x) {
return typeof x === 'number' ? 2 * x : x;
};
testMapper(
st,
double,
[1, 4, [3], 8, [[[5]]]]
);
testMapper(
st,
function (x) { return [this, double(x)]; },
[42, [1], 42, 4, 42, [[3]], 42, [], 42, 8, 42, [[[[5]]]]],
42
);
st.end();
});
t.end();
});
test('TrimString', function (t) {
t.test('non-object string', function (st) {
forEach(v.nullPrimitives, function (nullish) {
st['throws'](
function () { ES.TrimString(nullish); },
debug(nullish) + ' is not an Object'
);
});
st.end();
});
var string = ' \n abc \n ';
t.equal(ES.TrimString(string, 'start'), string.slice(string.indexOf('a')));
t.equal(ES.TrimString(string, 'end'), string.slice(0, string.lastIndexOf('c') + 1));
t.equal(ES.TrimString(string, 'start+end'), string.slice(string.indexOf('a'), string.lastIndexOf('c') + 1));
t.end();
});
};
module.exports = {
es2015: es2015,
es2016: es2016,
es2017: es2017,
es2018: es2018,
es2019: es2019
};