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72 lines
2.2 KiB
72 lines
2.2 KiB
'use strict';
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require('../common');
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const buffer = require('buffer');
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const assert = require('assert');
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const orig = Buffer.from('tést €', 'utf8');
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// Test Transcoding
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const tests = {
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'latin1': [0x74, 0xe9, 0x73, 0x74, 0x20, 0x3f],
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'ascii': [0x74, 0x3f, 0x73, 0x74, 0x20, 0x3f],
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'ucs2': [0x74, 0x00, 0xe9, 0x00, 0x73,
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0x00, 0x74, 0x00, 0x20, 0x00,
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0xac, 0x20]
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};
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for (const test in tests) {
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const dest = buffer.transcode(orig, 'utf8', test);
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assert.strictEqual(dest.length, tests[test].length);
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for (var n = 0; n < tests[test].length; n++)
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assert.strictEqual(dest[n], tests[test][n]);
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}
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{
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const dest = buffer.transcode(Buffer.from(tests.ucs2), 'ucs2', 'utf8');
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assert.strictEqual(dest.toString(), orig.toString());
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}
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{
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const utf8 = Buffer.from('€'.repeat(4000), 'utf8');
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const ucs2 = Buffer.from('€'.repeat(4000), 'ucs2');
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const utf8_to_ucs2 = buffer.transcode(utf8, 'utf8', 'ucs2');
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const ucs2_to_utf8 = buffer.transcode(ucs2, 'ucs2', 'utf8');
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assert.deepStrictEqual(utf8, ucs2_to_utf8);
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assert.deepStrictEqual(ucs2, utf8_to_ucs2);
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assert.strictEqual(ucs2_to_utf8.toString('utf8'),
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utf8_to_ucs2.toString('ucs2'));
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}
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assert.throws(
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() => buffer.transcode(null, 'utf8', 'ascii'),
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/^TypeError: "source" argument must be a Buffer or Uint8Array$/
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);
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assert.throws(
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() => buffer.transcode(Buffer.from('a'), 'b', 'utf8'),
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/^Error: Unable to transcode Buffer \[U_ILLEGAL_ARGUMENT_ERROR\]/
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);
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assert.throws(
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() => buffer.transcode(Buffer.from('a'), 'uf8', 'b'),
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/^Error: Unable to transcode Buffer \[U_ILLEGAL_ARGUMENT_ERROR\]$/
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);
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assert.deepStrictEqual(
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buffer.transcode(Buffer.from('hi', 'ascii'), 'ascii', 'utf16le'),
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Buffer.from('hi', 'utf16le'));
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assert.deepStrictEqual(
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buffer.transcode(Buffer.from('hi', 'latin1'), 'latin1', 'utf16le'),
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Buffer.from('hi', 'utf16le'));
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assert.deepStrictEqual(
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buffer.transcode(Buffer.from('hä', 'latin1'), 'latin1', 'utf16le'),
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Buffer.from('hä', 'utf16le'));
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// Test that Uint8Array arguments are okay.
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{
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const uint8array = new Uint8Array([...Buffer.from('hä', 'latin1')]);
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assert.deepStrictEqual(
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buffer.transcode(uint8array, 'latin1', 'utf16le'),
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Buffer.from('hä', 'utf16le'));
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}
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