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| if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
| var B = require('../').Buffer
| var test = require('tape')
|
| test('instanceof Buffer', function (t) {
| var buf = new B([1, 2])
| t.ok(buf instanceof B)
| t.end()
| })
|
| test('convert to Uint8Array in modern browsers', function (t) {
| if (B.TYPED_ARRAY_SUPPORT) {
| var buf = new B([1, 2])
| var uint8array = new Uint8Array(buf.buffer)
| t.ok(uint8array instanceof Uint8Array)
| t.equal(uint8array[0], 1)
| t.equal(uint8array[1], 2)
| } else {
| t.pass('object impl: skipping test')
| }
| t.end()
| })
|
| test('indexes from a string', function (t) {
| var buf = new B('abc')
| t.equal(buf[0], 97)
| t.equal(buf[1], 98)
| t.equal(buf[2], 99)
| t.end()
| })
|
| test('indexes from an array', function (t) {
| var buf = new B([ 97, 98, 99 ])
| t.equal(buf[0], 97)
| t.equal(buf[1], 98)
| t.equal(buf[2], 99)
| t.end()
| })
|
| test('setting index value should modify buffer contents', function (t) {
| var buf = new B([ 97, 98, 99 ])
| t.equal(buf[2], 99)
| t.equal(buf.toString(), 'abc')
|
| buf[2] += 10
| t.equal(buf[2], 109)
| t.equal(buf.toString(), 'abm')
| t.end()
| })
|
| test('storing negative number should cast to unsigned', function (t) {
| var buf = new B(1)
|
| if (B.TYPED_ARRAY_SUPPORT) {
| // This does not work with the object implementation -- nothing we can do!
| buf[0] = -3
| t.equal(buf[0], 253)
| }
|
| buf = new B(1)
| buf.writeInt8(-3, 0)
| t.equal(buf[0], 253)
|
| t.end()
| })
|
| test('test that memory is copied from array-like', function (t) {
| if (B.TYPED_ARRAY_SUPPORT) {
| var u = new Uint8Array(4)
| var b = new B(u)
| b[0] = 1
| b[1] = 2
| b[2] = 3
| b[3] = 4
|
| t.equal(u[0], 0)
| t.equal(u[1], 0)
| t.equal(u[2], 0)
| t.equal(u[3], 0)
| } else {
| t.pass('object impl: skipping test')
| }
|
| t.end()
| })
|
|
