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// Copyright 2015 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
goog.provide('goog.async.WorkQueueTest');
goog.setTestOnly('goog.async.WorkQueueTest');
goog.require('goog.async.WorkQueue');
goog.require('goog.testing.jsunit');
var id = 0;
var queue = null;
function setUp() {
queue = new goog.async.WorkQueue();
}
function tearDown() {
queue = null;
}
function testEntriesReturnedInOrder() {
var fn1 = function one() {};
var scope1 = {};
var fn2 = function two() {};
var scope2 = {};
queue.add(fn1, scope1);
queue.add(fn2, scope2);
var item = queue.remove();
assertEquals(fn1, item.fn);
assertEquals(scope1, item.scope);
assertNull(item.next);
item = queue.remove();
assertEquals(fn2, item.fn);
assertEquals(scope2, item.scope);
assertNull(item.next);
item = queue.remove();
assertNull(item);
}
function testReturnedItemReused() {
var fn1 = function() {};
var scope1 = {};
var fn2 = function() {};
var scope2 = {};
assertEquals(0, goog.async.WorkQueue.freelist_.occupants());
queue.add(fn1, scope1);
var item1 = queue.remove();
assertEquals(0, goog.async.WorkQueue.freelist_.occupants());
queue.returnUnused(item1);
assertEquals(1, goog.async.WorkQueue.freelist_.occupants());
queue.add(fn2, scope2);
assertEquals(0, goog.async.WorkQueue.freelist_.occupants());
var item2 = queue.remove();
assertEquals(item1, item2);
}
function testEmptyQueueReturnNull() {
var item1 = queue.remove();
assertNull(item1);
}
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