You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
165 lines
3.6 KiB
JavaScript
165 lines
3.6 KiB
JavaScript
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 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 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('buffer toArrayBuffer()', function (t) {
|
|
var data = [1, 2, 3, 4, 5, 6, 7, 8]
|
|
if (typeof Uint8Array !== 'undefined') {
|
|
var result = new B(data).toArrayBuffer()
|
|
var expected = new Uint8Array(data).buffer
|
|
for (var i = 0; i < expected.byteLength; i++) {
|
|
t.equal(result[i], expected[i])
|
|
}
|
|
} else {
|
|
t.pass('No toArrayBuffer() method provided in old browsers')
|
|
}
|
|
t.end()
|
|
})
|
|
|
|
test('buffer toJSON()', function (t) {
|
|
var data = [1, 2, 3, 4]
|
|
t.deepEqual(
|
|
new B(data).toJSON(),
|
|
{ type: 'Buffer', data: [1,2,3,4] }
|
|
)
|
|
t.end()
|
|
})
|
|
|
|
test('buffer copy example', function (t) {
|
|
var buf1 = new B(26)
|
|
var buf2 = new B(26)
|
|
|
|
for (var i = 0 ; i < 26 ; i++) {
|
|
buf1[i] = i + 97; // 97 is ASCII a
|
|
buf2[i] = 33; // ASCII !
|
|
}
|
|
|
|
buf1.copy(buf2, 8, 16, 20)
|
|
|
|
t.equal(
|
|
buf2.toString('ascii', 0, 25),
|
|
'!!!!!!!!qrst!!!!!!!!!!!!!'
|
|
)
|
|
t.end()
|
|
})
|