133 lines
3.2 KiB
JavaScript
133 lines
3.2 KiB
JavaScript
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('detect utf16 surrogate pairs', function (t) {
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var text = '\uD83D\uDE38' + '\uD83D\uDCAD' + '\uD83D\uDC4D'
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var buf = new B(text)
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t.equal(text, buf.toString())
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t.end()
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})
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test('detect utf16 surrogate pairs over U+20000 until U+10FFFF', function (t) {
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var text = '\uD842\uDFB7' + '\uD93D\uDCAD' + '\uDBFF\uDFFF'
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var buf = new B(text)
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t.equal(text, buf.toString())
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t.end()
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})
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test('replace orphaned utf16 surrogate lead code point', function (t) {
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var text = '\uD83D\uDE38' + '\uD83D' + '\uD83D\uDC4D'
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var buf = new B(text)
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t.deepEqual(buf, new B([ 0xf0, 0x9f, 0x98, 0xb8, 0xef, 0xbf, 0xbd, 0xf0, 0x9f, 0x91, 0x8d ]))
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t.end()
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})
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test('replace orphaned utf16 surrogate trail code point', function (t) {
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var text = '\uD83D\uDE38' + '\uDCAD' + '\uD83D\uDC4D'
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var buf = new B(text)
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t.deepEqual(buf, new B([ 0xf0, 0x9f, 0x98, 0xb8, 0xef, 0xbf, 0xbd, 0xf0, 0x9f, 0x91, 0x8d ]))
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t.end()
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})
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test('do not write partial utf16 code units', function (t) {
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var f = new B([0, 0, 0, 0, 0])
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t.equal(f.length, 5)
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var size = f.write('あいうえお', 'utf16le')
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t.equal(size, 4)
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t.deepEqual(f, new B([0x42, 0x30, 0x44, 0x30, 0x00]))
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t.end()
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})
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test('handle partial utf16 code points when encoding to utf8 the way node does', function (t) {
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var text = '\uD83D\uDE38' + '\uD83D\uDC4D'
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var buf = new B(8)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0xf0, 0x9f, 0x98, 0xb8, 0xf0, 0x9f, 0x91, 0x8d ]))
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buf = new B(7)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0xf0, 0x9f, 0x98, 0xb8, 0x00, 0x00, 0x00 ]))
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buf = new B(6)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0xf0, 0x9f, 0x98, 0xb8, 0x00, 0x00 ]))
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buf = new B(5)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0xf0, 0x9f, 0x98, 0xb8, 0x00 ]))
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buf = new B(4)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0xf0, 0x9f, 0x98, 0xb8 ]))
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buf = new B(3)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0x00, 0x00, 0x00 ]))
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buf = new B(2)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0x00, 0x00 ]))
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buf = new B(1)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0x00 ]))
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t.end()
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})
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test('handle invalid utf16 code points when encoding to utf8 the way node does', function (t) {
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var text = 'a' + '\uDE38\uD83D' + 'b'
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var buf = new B(8)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0x61, 0xef, 0xbf, 0xbd, 0xef, 0xbf, 0xbd, 0x62 ]))
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buf = new B(7)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0x61, 0xef, 0xbf, 0xbd, 0xef, 0xbf, 0xbd ]))
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buf = new B(6)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0x61, 0xef, 0xbf, 0xbd, 0x00, 0x00 ]))
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buf = new B(5)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0x61, 0xef, 0xbf, 0xbd, 0x00 ]))
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buf = new B(4)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0x61, 0xef, 0xbf, 0xbd ]))
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buf = new B(3)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0x61, 0x00, 0x00 ]))
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buf = new B(2)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0x61, 0x00 ]))
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buf = new B(1)
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buf.fill(0)
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buf.write(text)
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t.deepEqual(buf, new B([ 0x61 ]))
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t.end()
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})
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