diff options
author | isaacs <i@izs.me> | 2013-03-15 03:43:19 +0400 |
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committer | isaacs <i@izs.me> | 2013-03-15 03:43:19 +0400 |
commit | 14947b6c5e12ec65e6df75d4db5bcf47f7b29819 (patch) | |
tree | 69112e64013da4b2a98fd5cc3ab608868767967f /test | |
parent | 3537b57f3e6cdf385f0df44dd2a03f1a1ee06b09 (diff) |
stream: Return self from readable.wrap
Also, set paused=false *before* calling resume(). Otherwise,
there's an edge case where an immediately-emitted chunk might make
it call pause() again incorrectly.
Diffstat (limited to 'test')
-rw-r--r-- | test/simple/test-stream2-readable-wrap.js | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/test/simple/test-stream2-readable-wrap.js b/test/simple/test-stream2-readable-wrap.js new file mode 100644 index 00000000000..5fa5d185b55 --- /dev/null +++ b/test/simple/test-stream2-readable-wrap.js @@ -0,0 +1,94 @@ +// 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. + +var common = require('../common'); +var assert = require('assert'); + +var Readable = require('_stream_readable'); +var Writable = require('_stream_writable'); +var EE = require('events').EventEmitter; + +var old = new EE; +var r = new Readable({ highWaterMark: 10 }); +assert.equal(r, r.wrap(old)); + +var ended = false; +r.on('end', function() { + ended = true; +}); + +var pauses = 0; +var resumes = 0; + +old.pause = function() { + pauses++; + old.emit('pause'); + flowing = false; +}; + +old.resume = function() { + resumes++; + old.emit('resume'); + flow(); +}; + +var flowing; +var chunks = 10; +var oldEnded = false; +function flow() { + flowing = true; + while (flowing && chunks-- > 0) { + old.emit('data', new Buffer('xxxxxxxxxx')); + } + if (chunks <= 0) { + oldEnded = true; + old.emit('end'); + } +} + +var w = new Writable({ highWaterMark: 20 }); +var written = []; +w._write = function(chunk, encoding, cb) { + written.push(chunk.toString()); + setTimeout(cb); +}; + +var finished = false; +w.on('finish', function() { + finished = true; +}); + + +var expect = new Array(11).join('xxxxxxxxxx'); + +r.pipe(w); + +flow(); + +process.on('exit', function() { + assert.equal(pauses, 10); + assert.equal(resumes, 9); + assert(ended); + assert(finished); + assert(oldEnded); + assert.equal(written.join(''), expect); + console.log('ok'); +}); |