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string_decoder: Add 'end' method, do base64 properly
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// 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. | ||
|
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// 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. | ||
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var assert = require('assert'); | ||
var SD = require('string_decoder').StringDecoder; | ||
var encodings = ['base64', 'hex', 'utf8', 'utf16le', 'ucs2']; | ||
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var bufs = [ '☃💩', 'asdf' ].map(function(b) { | ||
return new Buffer(b); | ||
}); | ||
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// 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)); | ||
} | ||
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encodings.forEach(testEncoding); | ||
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console.log('ok'); | ||
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function testEncoding(encoding) { | ||
bufs.forEach(function(buf) { | ||
testBuf(encoding, buf); | ||
}); | ||
} | ||
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function testBuf(encoding, buf) { | ||
console.error('# %s', encoding, buf); | ||
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// 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(); | ||
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// write the whole buffer at once. | ||
var res2 = ''; | ||
var s = new SD(encoding); | ||
res2 += s.write(buf); | ||
res2 += s.end(); | ||
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// .toString() on the buffer | ||
var res3 = buf.toString(encoding); | ||
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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'); | ||
} |