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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.
var common = require('../common');
var assert = require('assert');
var Readable = require('_stream_readable');
var Writable = require('_stream_writable');
var EE = require('events').EventEmitter;
var testRuns = 0, completedRuns = 0;
function runTest(highWaterMark, objectMode, produce) {
testRuns++;
var old = new EE;
var r = new Readable({ highWaterMark: highWaterMark, objectMode: objectMode });
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;
var expected = [];
function flow() {
flowing = true;
while (flowing && chunks-- > 0) {
var item = produce();
expected.push(item);
console.log('emit', chunks);
old.emit('data', item);
}
if (chunks <= 0) {
oldEnded = true;
console.log('old end', chunks, flowing);
old.emit('end');
}
}
var w = new Writable({ highWaterMark: highWaterMark * 2, objectMode: objectMode });
var written = [];
w._write = function(chunk, encoding, cb) {
console.log(chunk);
written.push(chunk);
setTimeout(cb);
};
w.on('finish', function() {
completedRuns++;
performAsserts();
});
r.pipe(w);
flow();
function performAsserts() {
assert(ended);
assert(oldEnded);
assert.deepEqual(written, expected);
assert.equal(pauses, 10);
assert.equal(resumes, 9);
}
}
runTest(10, false, function(){ return new Buffer('xxxxxxxxxx'); });
runTest(1, true, function(){ return { foo: 'bar' }; });
var objectChunks = [ 5, 'a', false, 0, '', 'xyz', { x: 4 }, 7, [], 555 ];
runTest(1, true, function(){ return objectChunks.shift() });
process.on('exit', function() {
assert.equal(testRuns, completedRuns);
console.log('ok');
});
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