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127 lines
2.8 KiB
127 lines
2.8 KiB
if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false |
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var B = require('../').Buffer |
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var test = require('tape') |
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test('buffer.toJSON', function (t) { |
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var data = [1, 2, 3, 4] |
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t.deepEqual( |
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new B(data).toJSON(), |
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{ type: 'Buffer', data: [ 1, 2, 3, 4 ] } |
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) |
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t.end() |
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}) |
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test('buffer.copy', function (t) { |
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// copied from nodejs.org example |
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var buf1 = new B(26) |
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var buf2 = new B(26) |
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for (var i = 0; i < 26; i++) { |
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buf1[i] = i + 97 // 97 is ASCII a |
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buf2[i] = 33 // ASCII ! |
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} |
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buf1.copy(buf2, 8, 16, 20) |
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t.equal( |
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buf2.toString('ascii', 0, 25), |
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'!!!!!!!!qrst!!!!!!!!!!!!!' |
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) |
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t.end() |
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}) |
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test('test offset returns are correct', function (t) { |
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var b = new B(16) |
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t.equal(4, b.writeUInt32LE(0, 0)) |
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t.equal(6, b.writeUInt16LE(0, 4)) |
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t.equal(7, b.writeUInt8(0, 6)) |
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t.equal(8, b.writeInt8(0, 7)) |
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t.equal(16, b.writeDoubleLE(0, 8)) |
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t.end() |
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}) |
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test('concat() a varying number of buffers', function (t) { |
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var zero = [] |
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var one = [ new B('asdf') ] |
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var long = [] |
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for (var i = 0; i < 10; i++) { |
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long.push(new B('asdf')) |
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} |
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var flatZero = B.concat(zero) |
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var flatOne = B.concat(one) |
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var flatLong = B.concat(long) |
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var flatLongLen = B.concat(long, 40) |
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t.equal(flatZero.length, 0) |
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t.equal(flatOne.toString(), 'asdf') |
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t.deepEqual(flatOne, one[0]) |
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t.equal(flatLong.toString(), (new Array(10 + 1).join('asdf'))) |
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t.equal(flatLongLen.toString(), (new Array(10 + 1).join('asdf'))) |
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t.end() |
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}) |
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test('fill', function (t) { |
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var b = new B(10) |
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b.fill(2) |
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t.equal(b.toString('hex'), '02020202020202020202') |
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t.end() |
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}) |
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test('fill (string)', function (t) { |
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var b = new B(10) |
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b.fill('abc') |
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t.equal(b.toString(), 'abcabcabca') |
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b.fill('է') |
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t.equal(b.toString(), 'էէէէէ') |
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t.end() |
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}) |
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test('copy() empty buffer with sourceEnd=0', function (t) { |
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var source = new B([42]) |
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var destination = new B([43]) |
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source.copy(destination, 0, 0, 0) |
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t.equal(destination.readUInt8(0), 43) |
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t.end() |
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}) |
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test('copy() after slice()', function (t) { |
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var source = new B(200) |
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var dest = new B(200) |
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var expected = new B(200) |
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for (var i = 0; i < 200; i++) { |
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source[i] = i |
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dest[i] = 0 |
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} |
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source.slice(2).copy(dest) |
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source.copy(expected, 0, 2) |
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t.deepEqual(dest, expected) |
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t.end() |
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}) |
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test('copy() ascending', function (t) { |
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var b = new B('abcdefghij') |
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b.copy(b, 0, 3, 10) |
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t.equal(b.toString(), 'defghijhij') |
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t.end() |
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}) |
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test('copy() descending', function (t) { |
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var b = new B('abcdefghij') |
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b.copy(b, 3, 0, 7) |
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t.equal(b.toString(), 'abcabcdefg') |
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t.end() |
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}) |
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test('buffer.slice sets indexes', function (t) { |
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t.equal((new B('hallo')).slice(0, 5).toString(), 'hallo') |
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t.end() |
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}) |
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test('buffer.slice out of range', function (t) { |
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t.plan(2) |
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t.equal((new B('hallo')).slice(0, 10).toString(), 'hallo') |
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t.equal((new B('hallo')).slice(10, 2).toString(), '') |
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t.end() |
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})
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