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143 lines
2.4 KiB
143 lines
2.4 KiB
var tape = require('tape')
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var through = require('through2')
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var ndjson = require('ndjson')
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var each = require('./')
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tape('each', function (t) {
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var s = through.obj()
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s.write('a')
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s.write('b')
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s.write('c')
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s.end()
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s.on('end', function () {
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t.end()
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})
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var expected = ['a', 'b', 'c']
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each(s, function (data, next) {
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t.same(data, expected.shift())
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next()
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})
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})
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tape('each and callback', function (t) {
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var s = through.obj()
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s.write('a')
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s.write('b')
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s.write('c')
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s.end()
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var expected = ['a', 'b', 'c']
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each(s, function (data, next) {
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t.same(data, expected.shift())
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next()
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}, function () {
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t.end()
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})
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})
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tape('each (write after)', function (t) {
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var s = through.obj()
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s.on('end', function () {
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t.end()
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})
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var expected = ['a', 'b', 'c']
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each(s, function (data, next) {
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t.same(data, expected.shift())
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next()
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})
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setTimeout(function () {
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s.write('a')
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s.write('b')
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s.write('c')
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s.end()
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}, 100)
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})
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tape('each error', function (t) {
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var s = through.obj()
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s.write('hello')
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s.on('error', function (err) {
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t.same(err.message, 'stop')
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t.end()
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})
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each(s, function (data, next) {
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next(new Error('stop'))
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})
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})
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tape('each error and callback', function (t) {
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var s = through.obj()
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s.write('hello')
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each(s, function (data, next) {
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next(new Error('stop'))
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}, function (err) {
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t.same(err.message, 'stop')
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t.end()
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})
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})
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tape('each with falsey values', function (t) {
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var s = through.obj()
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s.write(0)
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s.write(false)
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s.write(undefined)
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s.end()
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s.on('end', function () {
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t.end()
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})
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var expected = [0, false]
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var count = 0
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each(s, function (data, next) {
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count++
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t.same(data, expected.shift())
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next()
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}, function () {
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t.same(count, 2)
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})
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})
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tape('huge stack', function (t) {
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var s = through.obj()
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for (var i = 0; i < 5000; i++) {
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s.write('foo')
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}
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s.end()
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each(s, function (data, cb) {
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if (data !== 'foo') t.fail('bad data')
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cb()
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}, function (err) {
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t.error(err, 'no error')
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t.end()
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})
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})
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tape('cb only once', function (t) {
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var p = ndjson.parse()
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var once = true
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var data = '{"foo":"' + Array(1000).join('x') + '"}\n'
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each(p, ondata, function (err) {
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t.ok(once, 'only once')
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t.ok(err, 'had error')
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once = false
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t.end()
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})
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for (var i = 0; i < 1000; i++) p.write(data)
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p.write('{...}\n')
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function ondata (data, cb) {
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process.nextTick(cb)
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}
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})
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