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-rw-r--r--node_modules/buffer/test/constructor.js193
1 files changed, 193 insertions, 0 deletions
diff --git a/node_modules/buffer/test/constructor.js b/node_modules/buffer/test/constructor.js
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+++ b/node_modules/buffer/test/constructor.js
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+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()
+})