| // Copyright Joyent, Inc. and other Node contributors. |
| // |
| // Permission is hereby granted, free of charge, to any person obtaining a |
| // copy of this software and associated documentation files (the |
| // "Software"), to deal in the Software without restriction, including |
| // without limitation the rights to use, copy, modify, merge, publish, |
| // distribute, sublicense, and/or sell copies of the Software, and to permit |
| // persons to whom the Software is furnished to do so, subject to the |
| // following conditions: |
| // |
| // The above copyright notice and this permission notice shall be included |
| // in all copies or substantial portions of the Software. |
| // |
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN |
| // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
| // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| // USE OR OTHER DEALINGS IN THE SOFTWARE. |
| |
| // verify that the string decoder works getting 1 byte at a time, |
| // the whole buffer at once, and that both match the .toString(enc) |
| // result of the entire buffer. |
| |
| var assert = require('assert'); |
| var SD = require('string_decoder').StringDecoder; |
| var encodings = ['base64', 'hex', 'utf8', 'utf16le', 'ucs2']; |
| |
| var bufs = [ '☃💩', 'asdf' ].map(function(b) { |
| return new Buffer(b); |
| }); |
| |
| // also test just arbitrary bytes from 0-15. |
| for (var i = 1; i <= 16; i++) { |
| var bytes = new Array(i).join('.').split('.').map(function(_, j) { |
| return j + 0x78; |
| }); |
| bufs.push(new Buffer(bytes)); |
| } |
| |
| encodings.forEach(testEncoding); |
| |
| console.log('ok'); |
| |
| function testEncoding(encoding) { |
| bufs.forEach(function(buf) { |
| testBuf(encoding, buf); |
| }); |
| } |
| |
| function testBuf(encoding, buf) { |
| console.error('# %s', encoding, buf); |
| |
| // write one byte at a time. |
| var s = new SD(encoding); |
| var res1 = ''; |
| for (var i = 0; i < buf.length; i++) { |
| res1 += s.write(buf.slice(i, i + 1)); |
| } |
| res1 += s.end(); |
| |
| // write the whole buffer at once. |
| var res2 = ''; |
| var s = new SD(encoding); |
| res2 += s.write(buf); |
| res2 += s.end(); |
| |
| // .toString() on the buffer |
| var res3 = buf.toString(encoding); |
| |
| console.log('expect=%j', res3); |
| assert.equal(res1, res3, 'one byte at a time should match toString'); |
| assert.equal(res2, res3, 'all bytes at once should match toString'); |
| } |