diff --git a/test/simple/test-stream2-readable-legacy-drain.js b/test/simple/test-stream2-readable-legacy-drain.js new file mode 100644 index 00000000000..a1fffd9bb50 --- /dev/null +++ b/test/simple/test-stream2-readable-legacy-drain.js @@ -0,0 +1,75 @@ +// 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 Stream = require('stream'); +var Readable = Stream.Readable; + +var r = new Readable(); +var N = 256; +var reads = 0; +r._read = function(n, cb) { + return cb(null, ++reads === N ? null : new Buffer(1)); +}; + +var rended = false; +r.on('end', function() { + rended = true; +}); + +var w = new Stream(); +w.writable = true; +var writes = 0; +var buffered = 0; +w.write = function(c) { + writes += c.length; + buffered += c.length; + process.nextTick(drain); + return false; +}; + +function drain() { + assert(buffered <= 2); + buffered = 0; + w.emit('drain'); +} + + +var wended = false; +w.end = function() { + wended = true; +}; + +// Just for kicks, let's mess with the drain count. +// This verifies that even if it gets negative in the +// pipe() cleanup function, we'll still function properly. +r.on('readable', function() { + w.emit('drain'); +}); + +r.pipe(w); +process.on('exit', function() { + assert(rended); + assert(wended); + console.error('ok'); +});