128 lines
2.8 KiB
JavaScript
128 lines
2.8 KiB
JavaScript
|
if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
|
||
|
|
var B = require('../').Buffer
|
||
|
|
var test = require('tape')
|
||
|
|
|
||
|
|
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', function (t) {
|
||
|
|
// copied from nodejs.org example
|
||
|
|
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()
|
||
|
|
})
|
||
|
|
|
||
|
|
test('test offset returns are correct', function (t) {
|
||
|
|
var b = new B(16)
|
||
|
|
t.equal(4, b.writeUInt32LE(0, 0))
|
||
|
|
t.equal(6, b.writeUInt16LE(0, 4))
|
||
|
|
t.equal(7, b.writeUInt8(0, 6))
|
||
|
|
t.equal(8, b.writeInt8(0, 7))
|
||
|
|
t.equal(16, b.writeDoubleLE(0, 8))
|
||
|
|
t.end()
|
||
|
|
})
|
||
|
|
|
||
|
|
test('concat() a varying number of buffers', function (t) {
|
||
|
|
var zero = []
|
||
|
|
var one = [ new B('asdf') ]
|
||
|
|
var long = []
|
||
|
|
for (var i = 0; i < 10; i++) {
|
||
|
|
long.push(new B('asdf'))
|
||
|
|
}
|
||
|
|
|
||
|
|
var flatZero = B.concat(zero)
|
||
|
|
var flatOne = B.concat(one)
|
||
|
|
var flatLong = B.concat(long)
|
||
|
|
var flatLongLen = B.concat(long, 40)
|
||
|
|
|
||
|
|
t.equal(flatZero.length, 0)
|
||
|
|
t.equal(flatOne.toString(), 'asdf')
|
||
|
|
t.deepEqual(flatOne, one[0])
|
||
|
|
t.equal(flatLong.toString(), (new Array(10 + 1).join('asdf')))
|
||
|
|
t.equal(flatLongLen.toString(), (new Array(10 + 1).join('asdf')))
|
||
|
|
t.end()
|
||
|
|
})
|
||
|
|
|
||
|
|
test('fill', function (t) {
|
||
|
|
var b = new B(10)
|
||
|
|
b.fill(2)
|
||
|
|
t.equal(b.toString('hex'), '02020202020202020202')
|
||
|
|
t.end()
|
||
|
|
})
|
||
|
|
|
||
|
|
test('fill (string)', function (t) {
|
||
|
|
var b = new B(10)
|
||
|
|
b.fill('abc')
|
||
|
|
t.equal(b.toString(), 'abcabcabca')
|
||
|
|
b.fill('է')
|
||
|
|
t.equal(b.toString(), 'էէէէէ')
|
||
|
|
t.end()
|
||
|
|
})
|
||
|
|
|
||
|
|
test('copy() empty buffer with sourceEnd=0', function (t) {
|
||
|
|
var source = new B([42])
|
||
|
|
var destination = new B([43])
|
||
|
|
source.copy(destination, 0, 0, 0)
|
||
|
|
t.equal(destination.readUInt8(0), 43)
|
||
|
|
t.end()
|
||
|
|
})
|
||
|
|
|
||
|
|
test('copy() after slice()', function (t) {
|
||
|
|
var source = new B(200)
|
||
|
|
var dest = new B(200)
|
||
|
|
var expected = new B(200)
|
||
|
|
for (var i = 0; i < 200; i++) {
|
||
|
|
source[i] = i
|
||
|
|
dest[i] = 0
|
||
|
|
}
|
||
|
|
|
||
|
|
source.slice(2).copy(dest)
|
||
|
|
source.copy(expected, 0, 2)
|
||
|
|
t.deepEqual(dest, expected)
|
||
|
|
t.end()
|
||
|
|
})
|
||
|
|
|
||
|
|
test('copy() ascending', function (t) {
|
||
|
|
var b = new B('abcdefghij')
|
||
|
|
b.copy(b, 0, 3, 10)
|
||
|
|
t.equal(b.toString(), 'defghijhij')
|
||
|
|
t.end()
|
||
|
|
})
|
||
|
|
|
||
|
|
test('copy() descending', function (t) {
|
||
|
|
var b = new B('abcdefghij')
|
||
|
|
b.copy(b, 3, 0, 7)
|
||
|
|
t.equal(b.toString(), 'abcabcdefg')
|
||
|
|
t.end()
|
||
|
|
})
|
||
|
|
|
||
|
|
test('buffer.slice sets indexes', function (t) {
|
||
|
|
t.equal((new B('hallo')).slice(0, 5).toString(), 'hallo')
|
||
|
|
t.end()
|
||
|
|
})
|
||
|
|
|
||
|
|
test('buffer.slice out of range', function (t) {
|
||
|
|
t.plan(2)
|
||
|
|
t.equal((new B('hallo')).slice(0, 10).toString(), 'hallo')
|
||
|
|
t.equal((new B('hallo')).slice(10, 2).toString(), '')
|
||
|
|
t.end()
|
||
|
|
})
|