mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
138 lines
3.2 KiB
138 lines
3.2 KiB
// 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.js');
|
|
var stream = require('stream');
|
|
var Readable = stream.Readable;
|
|
var Writable = stream.Writable;
|
|
var assert = require('assert');
|
|
|
|
var util = require('util');
|
|
var EE = require('events').EventEmitter;
|
|
|
|
|
|
// a mock thing a bit like the net.Socket/tcp_wrap.handle interaction
|
|
|
|
var stream = new Readable({
|
|
highWaterMark: 16,
|
|
encoding: 'utf8'
|
|
});
|
|
|
|
var source = new EE;
|
|
|
|
stream._read = function() {
|
|
console.error('stream._read');
|
|
readStart();
|
|
};
|
|
|
|
var ended = false;
|
|
stream.on('end', function() {
|
|
ended = true;
|
|
});
|
|
|
|
source.on('data', function(chunk) {
|
|
var ret = stream.push(chunk);
|
|
console.error('data', stream._readableState.length);
|
|
if (!ret)
|
|
readStop();
|
|
});
|
|
|
|
source.on('end', function() {
|
|
stream.push(null);
|
|
});
|
|
|
|
var reading = false;
|
|
|
|
function readStart() {
|
|
console.error('readStart');
|
|
reading = true;
|
|
}
|
|
|
|
function readStop() {
|
|
console.error('readStop');
|
|
reading = false;
|
|
process.nextTick(function() {
|
|
var r = stream.read();
|
|
if (r !== null)
|
|
writer.write(r);
|
|
});
|
|
}
|
|
|
|
var writer = new Writable({
|
|
decodeStrings: false
|
|
});
|
|
|
|
var written = [];
|
|
|
|
var expectWritten =
|
|
[ 'asdfgasdfgasdfgasdfg',
|
|
'asdfgasdfgasdfgasdfg',
|
|
'asdfgasdfgasdfgasdfg',
|
|
'asdfgasdfgasdfgasdfg',
|
|
'asdfgasdfgasdfgasdfg',
|
|
'asdfgasdfgasdfgasdfg' ];
|
|
|
|
writer._write = function(chunk, encoding, cb) {
|
|
console.error('WRITE %s', chunk);
|
|
written.push(chunk);
|
|
process.nextTick(cb);
|
|
};
|
|
|
|
writer.on('finish', finish);
|
|
|
|
|
|
// now emit some chunks.
|
|
|
|
var chunk = "asdfg";
|
|
|
|
var set = 0;
|
|
readStart();
|
|
data();
|
|
function data() {
|
|
assert(reading);
|
|
source.emit('data', chunk);
|
|
assert(reading);
|
|
source.emit('data', chunk);
|
|
assert(reading);
|
|
source.emit('data', chunk);
|
|
assert(reading);
|
|
source.emit('data', chunk);
|
|
assert(!reading);
|
|
if (set++ < 5)
|
|
setTimeout(data, 10);
|
|
else
|
|
end();
|
|
}
|
|
|
|
function finish() {
|
|
console.error('finish');
|
|
assert.deepEqual(written, expectWritten);
|
|
console.log('ok');
|
|
}
|
|
|
|
function end() {
|
|
source.emit('end');
|
|
assert(!reading);
|
|
writer.end(stream.read());
|
|
setTimeout(function() {
|
|
assert(ended);
|
|
});
|
|
}
|
|
|