You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
193 lines
4.3 KiB
193 lines
4.3 KiB
if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
|
|
var B = require('../').Buffer
|
|
var test = require('tape')
|
|
|
|
test('new buffer from array', function (t) {
|
|
t.equal(
|
|
new B([1, 2, 3]).toString(),
|
|
'\u0001\u0002\u0003'
|
|
)
|
|
t.end()
|
|
})
|
|
|
|
test('new buffer from array w/ negatives', function (t) {
|
|
t.equal(
|
|
new B([-1, -2, -3]).toString('hex'),
|
|
'fffefd'
|
|
)
|
|
t.end()
|
|
})
|
|
|
|
test('new buffer from array with mixed signed input', function (t) {
|
|
t.equal(
|
|
new B([-255, 255, -128, 128, 512, -512, 511, -511]).toString('hex'),
|
|
'01ff80800000ff01'
|
|
)
|
|
t.end()
|
|
})
|
|
|
|
test('new buffer from string', function (t) {
|
|
t.equal(
|
|
new B('hey', 'utf8').toString(),
|
|
'hey'
|
|
)
|
|
t.end()
|
|
})
|
|
|
|
test('new buffer from buffer', function (t) {
|
|
var b1 = new B('asdf')
|
|
var b2 = new B(b1)
|
|
t.equal(b1.toString('hex'), b2.toString('hex'))
|
|
t.end()
|
|
})
|
|
|
|
test('new buffer from ArrayBuffer', function (t) {
|
|
if (typeof ArrayBuffer !== 'undefined') {
|
|
var arraybuffer = new Uint8Array([0, 1, 2, 3]).buffer
|
|
var b = new B(arraybuffer)
|
|
t.equal(b.length, 4)
|
|
t.equal(b[0], 0)
|
|
t.equal(b[1], 1)
|
|
t.equal(b[2], 2)
|
|
t.equal(b[3], 3)
|
|
t.equal(b[4], undefined)
|
|
}
|
|
t.end()
|
|
})
|
|
|
|
test('new buffer from ArrayBuffer, shares memory', function (t) {
|
|
if (Buffer.TYPED_ARRAY_SUPPORT) {
|
|
var u = new Uint8Array([0, 1, 2, 3])
|
|
var arraybuffer = u.buffer
|
|
var b = new B(arraybuffer)
|
|
t.equal(b.length, 4)
|
|
t.equal(b[0], 0)
|
|
t.equal(b[1], 1)
|
|
t.equal(b[2], 2)
|
|
t.equal(b[3], 3)
|
|
t.equal(b[4], undefined)
|
|
|
|
// changing the Uint8Array (and thus the ArrayBuffer), changes the Buffer
|
|
u[0] = 10
|
|
t.equal(b[0], 10)
|
|
u[1] = 11
|
|
t.equal(b[1], 11)
|
|
u[2] = 12
|
|
t.equal(b[2], 12)
|
|
u[3] = 13
|
|
t.equal(b[3], 13)
|
|
}
|
|
t.end()
|
|
})
|
|
|
|
test('new buffer from Uint8Array', function (t) {
|
|
if (typeof Uint8Array !== 'undefined') {
|
|
var b1 = new Uint8Array([0, 1, 2, 3])
|
|
var b2 = new B(b1)
|
|
t.equal(b1.length, b2.length)
|
|
t.equal(b1[0], 0)
|
|
t.equal(b1[1], 1)
|
|
t.equal(b1[2], 2)
|
|
t.equal(b1[3], 3)
|
|
t.equal(b1[4], undefined)
|
|
}
|
|
t.end()
|
|
})
|
|
|
|
test('new buffer from Uint16Array', function (t) {
|
|
if (typeof Uint16Array !== 'undefined') {
|
|
var b1 = new Uint16Array([0, 1, 2, 3])
|
|
var b2 = new B(b1)
|
|
t.equal(b1.length, b2.length)
|
|
t.equal(b1[0], 0)
|
|
t.equal(b1[1], 1)
|
|
t.equal(b1[2], 2)
|
|
t.equal(b1[3], 3)
|
|
t.equal(b1[4], undefined)
|
|
}
|
|
t.end()
|
|
})
|
|
|
|
test('new buffer from Uint32Array', function (t) {
|
|
if (typeof Uint32Array !== 'undefined') {
|
|
var b1 = new Uint32Array([0, 1, 2, 3])
|
|
var b2 = new B(b1)
|
|
t.equal(b1.length, b2.length)
|
|
t.equal(b1[0], 0)
|
|
t.equal(b1[1], 1)
|
|
t.equal(b1[2], 2)
|
|
t.equal(b1[3], 3)
|
|
t.equal(b1[4], undefined)
|
|
}
|
|
t.end()
|
|
})
|
|
|
|
test('new buffer from Int16Array', function (t) {
|
|
if (typeof Int16Array !== 'undefined') {
|
|
var b1 = new Int16Array([0, 1, 2, 3])
|
|
var b2 = new B(b1)
|
|
t.equal(b1.length, b2.length)
|
|
t.equal(b1[0], 0)
|
|
t.equal(b1[1], 1)
|
|
t.equal(b1[2], 2)
|
|
t.equal(b1[3], 3)
|
|
t.equal(b1[4], undefined)
|
|
}
|
|
t.end()
|
|
})
|
|
|
|
test('new buffer from Int32Array', function (t) {
|
|
if (typeof Int32Array !== 'undefined') {
|
|
var b1 = new Int32Array([0, 1, 2, 3])
|
|
var b2 = new B(b1)
|
|
t.equal(b1.length, b2.length)
|
|
t.equal(b1[0], 0)
|
|
t.equal(b1[1], 1)
|
|
t.equal(b1[2], 2)
|
|
t.equal(b1[3], 3)
|
|
t.equal(b1[4], undefined)
|
|
}
|
|
t.end()
|
|
})
|
|
|
|
test('new buffer from Float32Array', function (t) {
|
|
if (typeof Float32Array !== 'undefined') {
|
|
var b1 = new Float32Array([0, 1, 2, 3])
|
|
var b2 = new B(b1)
|
|
t.equal(b1.length, b2.length)
|
|
t.equal(b1[0], 0)
|
|
t.equal(b1[1], 1)
|
|
t.equal(b1[2], 2)
|
|
t.equal(b1[3], 3)
|
|
t.equal(b1[4], undefined)
|
|
}
|
|
t.end()
|
|
})
|
|
|
|
test('new buffer from Float64Array', function (t) {
|
|
if (typeof Float64Array !== 'undefined') {
|
|
var b1 = new Float64Array([0, 1, 2, 3])
|
|
var b2 = new B(b1)
|
|
t.equal(b1.length, b2.length)
|
|
t.equal(b1[0], 0)
|
|
t.equal(b1[1], 1)
|
|
t.equal(b1[2], 2)
|
|
t.equal(b1[3], 3)
|
|
t.equal(b1[4], undefined)
|
|
}
|
|
t.end()
|
|
})
|
|
|
|
test('new buffer from buffer.toJSON() output', function (t) {
|
|
if (typeof JSON === 'undefined') {
|
|
// ie6, ie7 lack support
|
|
t.end()
|
|
return
|
|
}
|
|
var buf = new B('test')
|
|
var json = JSON.stringify(buf)
|
|
var obj = JSON.parse(json)
|
|
var copy = new B(obj)
|
|
t.ok(buf.equals(copy))
|
|
t.end()
|
|
})
|