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fea3595c2f
Third string literal argument in assert.strictEqual() needs to be removed. Otherwise, on AssertionError it would not display the values that failed the check -- this hinders debugging. The string literals are added as comments above the check. PR-URL: https://github.com/nodejs/node/pull/21406 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
122 lines
4.2 KiB
JavaScript
122 lines
4.2 KiB
JavaScript
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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'use strict';
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// verify that the string decoder works getting 1 byte at a time,
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// the whole buffer at once, and that both match the .toString(enc)
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// result of the entire buffer.
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require('../common');
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const assert = require('assert');
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const SD = require('string_decoder').StringDecoder;
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const encodings = ['base64', 'hex', 'utf8', 'utf16le', 'ucs2'];
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const bufs = [ '☃💩', 'asdf' ].map((b) => Buffer.from(b));
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// also test just arbitrary bytes from 0-15.
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for (let i = 1; i <= 16; i++) {
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const bytes = '.'.repeat(i - 1).split('.').map((_, j) => j + 0x78);
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bufs.push(Buffer.from(bytes));
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}
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encodings.forEach(testEncoding);
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testEnd('utf8', Buffer.of(0xE2), Buffer.of(0x61), '\uFFFDa');
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testEnd('utf8', Buffer.of(0xE2), Buffer.of(0x82), '\uFFFD\uFFFD');
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testEnd('utf8', Buffer.of(0xE2), Buffer.of(0xE2), '\uFFFD\uFFFD');
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testEnd('utf8', Buffer.of(0xE2, 0x82), Buffer.of(0x61), '\uFFFDa');
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testEnd('utf8', Buffer.of(0xE2, 0x82), Buffer.of(0xAC), '\uFFFD\uFFFD');
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testEnd('utf8', Buffer.of(0xE2, 0x82), Buffer.of(0xE2), '\uFFFD\uFFFD');
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testEnd('utf8', Buffer.of(0xE2, 0x82, 0xAC), Buffer.of(0x61), '€a');
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testEnd('utf16le', Buffer.of(0x3D), Buffer.of(0x61, 0x00), 'a');
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testEnd('utf16le', Buffer.of(0x3D), Buffer.of(0xD8, 0x4D, 0xDC), '\u4DD8');
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testEnd('utf16le', Buffer.of(0x3D, 0xD8), Buffer.of(), '\uD83D');
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testEnd('utf16le', Buffer.of(0x3D, 0xD8), Buffer.of(0x61, 0x00), '\uD83Da');
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testEnd(
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'utf16le',
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Buffer.of(0x3D, 0xD8),
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Buffer.of(0x4D, 0xDC),
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'\uD83D\uDC4D'
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);
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testEnd('utf16le', Buffer.of(0x3D, 0xD8, 0x4D), Buffer.of(), '\uD83D');
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testEnd(
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'utf16le',
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Buffer.of(0x3D, 0xD8, 0x4D),
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Buffer.of(0x61, 0x00),
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'\uD83Da'
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);
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testEnd('utf16le', Buffer.of(0x3D, 0xD8, 0x4D), Buffer.of(0xDC), '\uD83D');
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testEnd(
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'utf16le',
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Buffer.of(0x3D, 0xD8, 0x4D, 0xDC),
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Buffer.of(0x61, 0x00),
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'👍a'
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);
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testEnd('base64', Buffer.of(0x61), Buffer.of(), 'YQ==');
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testEnd('base64', Buffer.of(0x61), Buffer.of(0x61), 'YQ==YQ==');
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testEnd('base64', Buffer.of(0x61, 0x61), Buffer.of(), 'YWE=');
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testEnd('base64', Buffer.of(0x61, 0x61), Buffer.of(0x61), 'YWE=YQ==');
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testEnd('base64', Buffer.of(0x61, 0x61, 0x61), Buffer.of(), 'YWFh');
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testEnd('base64', Buffer.of(0x61, 0x61, 0x61), Buffer.of(0x61), 'YWFhYQ==');
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function testEncoding(encoding) {
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bufs.forEach((buf) => {
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testBuf(encoding, buf);
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});
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}
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function testBuf(encoding, buf) {
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// write one byte at a time.
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let s = new SD(encoding);
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let res1 = '';
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for (let i = 0; i < buf.length; i++) {
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res1 += s.write(buf.slice(i, i + 1));
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}
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res1 += s.end();
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// write the whole buffer at once.
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let res2 = '';
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s = new SD(encoding);
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res2 += s.write(buf);
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res2 += s.end();
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// .toString() on the buffer
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const res3 = buf.toString(encoding);
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// One byte at a time should match toString
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assert.strictEqual(res1, res3);
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// All bytes at once should match toString
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assert.strictEqual(res2, res3);
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}
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function testEnd(encoding, incomplete, next, expected) {
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let res = '';
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const s = new SD(encoding);
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res += s.write(incomplete);
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res += s.end();
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res += s.write(next);
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res += s.end();
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assert.strictEqual(res, expected);
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}
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