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<html lang="en"> |
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<head> |
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<meta charset="utf-8"> |
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<title>Example: Asynchronous Event Testing</title> |
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</head> |
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<body> |
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<!-- |
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<div id="doc"> |
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<div id="hd"> |
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<h1><img src="http://yuilibrary.com/img/yui-logo.png"></h1> |
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</div> |
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<a href="#toc" class="jump">Jump to Table of Contents</a> |
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<h1>Example: Asynchronous Event Testing</h1> |
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<div class="yui3-g"> |
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<div class="yui3-u-3-4"> |
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<div id="main"> |
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<div class="content"><div class="intro"> |
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<p>This example shows how to create an asynchronous test with the YUI Test framework for testing browser-based JavaScript code. |
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A <code>Y.Test.Case</code></a> object is created to test the |
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<code>Y.Anim</code> object. The test waits until the animation is complete |
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before checking the settings of the animated element.</p> |
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</div> |
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<div class="example yui3-skin-sam" style="position: relative;"> |
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<div id="testLogger"></div> |
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<div id="testDiv" style="left:0;position:absolute;width:10px;height:10px; background-color:red"></div> |
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<script> |
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YUI().use('anim', 'test-console', 'test', function (Y) { |
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Y.namespace("example.test"); |
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Y.example.test.AsyncTestCase = new Y.Test.Case({ |
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//name of the test case - if not provided, one is auto-generated |
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name : "Animation Tests", |
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//--------------------------------------------------------------------- |
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// Test methods - names must begin with "test" |
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//--------------------------------------------------------------------- |
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testAnimation : function (){ |
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var myAnim = new Y.Anim({ |
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node: '#testDiv', |
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to: { |
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width: 400 |
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}, |
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duration: 3, |
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easing: Y.Easing.easeOut |
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}); |
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//assign oncomplete handler |
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myAnim.on("end", function(){ |
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//tell the TestRunner to resume |
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this.resume(function(){ |
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Y.Assert.areEqual(document.getElementById("testDiv").offsetWidth, 400, "Width of the DIV should be 400."); |
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}); |
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}, this, true); |
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//start the animation |
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myAnim.run(); |
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//wait until something happens |
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this.wait(); |
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} |
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}); |
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//create the console |
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(new Y.Test.Console({ |
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newestOnTop : false, |
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filters: { |
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pass: true, |
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fail: true |
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} |
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})).render('#testLogger'); |
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//create the logger |
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Y.Test.Runner.add(Y.example.test.AsyncTestCase); |
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//run the tests |
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Y.Test.Runner.run(); |
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}); |
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</script> |
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</div> |
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<h2 class="first" id="asynchronous-events-test-example">Asynchronous Events Test Example</h2> |
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<p>This example begins by creating a namespace:</p> |
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<pre class="code prettyprint">Y.namespace("example.test");</pre> |
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<p>This namespace serves as the core object upon which others will be added (to prevent creating global objects).</p> |
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<h3 id="creating-the-testcase">Creating the TestCase</h3> |
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<p>The first step is to create a new <code>Y.Test.Case</code>object called <code>AsyncTestCase</code>. |
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To do so, using the <code>Y.Test.Case</code>constructor and pass in an object literal containing information about the tests to be run:</p> |
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<pre class="code prettyprint">Y.example.test.AsyncTestCase = new Y.Test.Case({ |
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//name of the test case - if not provided, one is auto-generated |
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name : "Animation Tests", |
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//--------------------------------------------------------------------- |
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// Test methods - names must begin with "test" |
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//--------------------------------------------------------------------- |
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testAnimation : function (){ |
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var myAnim = new Y.Anim({ |
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node: '#testDiv', |
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to: { |
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width: 400 |
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}, |
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duration: 3, |
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easing: Y.Easing.easeOut |
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}); |
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//assign oncomplete handler |
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myAnim.on("end", function(){ |
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//tell the TestRunner to resume |
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this.resume(function(){ |
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Y.Assert.areEqual(document.getElementById("testDiv").offsetWidth, 400, "Width of the DIV should be 400."); |
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}); |
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}, this, true); |
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//start the animation |
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myAnim.run(); |
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//wait until something happens |
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this.wait(); |
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} |
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});</pre> |
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<p>The only test in the <code>Y.Test.Case</code>is called <code>testAnimation</code>. It begins by creating a new |
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<code>Anim</code> object that will animate the width of a <code>div</code> to 400 pixels over three seconds. An |
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event handler is assigned to the <code>Anim</code> object's <code>end</code> event, within which the |
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<code>resume()</code> method is called. A function is passed into the <code>resume()</code> method to indicate |
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the code to run when the test resumes, which is a test to make sure the width is 400 pixels. After that, the |
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<code>run()</code> method is called to begin the animation and the <code>wait()</code> method is called to |
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tell the <code>Y.Test.Runner</code> to wait until it is told to resume testing again. When the animation completes, |
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the <code>end</code> event is fired and the test resumes, assuring that the width is correct.</p> |
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<h3 id="running-the-tests">Running the tests</h3> |
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<p>With all of the tests defined, the last step is to run them:</p> |
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<pre class="code prettyprint">//create the console |
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(new Y.Test.Console({ |
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verbose : true, |
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newestOnTop : false, |
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filters: { |
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pass: true, |
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fail: true |
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} |
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}).render('#testLogger'); |
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//create the logger |
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Y.Test.Runner.add(Y.example.test.AsyncTestCase); |
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//run the tests |
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Y.Test.Runner.run();</pre> |
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<p>Before running the tests, it's necessary to create a <code>Y.Test.Console</code> object to display the results (otherwise the tests would run |
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but you wouldn't see the results). After that, the <code>Y.Test.Runner</code> is loaded with the <code>Y.Test.Case</code>object by calling |
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<code>add()</code> (any number of <code>Y.Test.Case</code>and <code>TestSuite</code> objects can be added to a <code>Y.Test.Runner</code>, |
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this example only adds one for simplicity). The very last step is to call <code>run()</code>, which begins executing the tests in its |
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queue and displays the results in the <code>Y.Test.Console</code>.</p> |
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<h2 id="complete-example-source">Complete Example Source</h2> |
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<pre class="code prettyprint"><div id="testLogger"></div> |
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<div id="testDiv" style="left:0;position:absolute;width:10px;height:10px; background-color:red"></div> |
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<script> |
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YUI().use('anim', 'test-console', 'test', function (Y) { |
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Y.namespace("example.test"); |
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Y.example.test.AsyncTestCase = new Y.Test.Case({ |
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//name of the test case - if not provided, one is auto-generated |
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name : "Animation Tests", |
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//--------------------------------------------------------------------- |
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// Test methods - names must begin with "test" |
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//--------------------------------------------------------------------- |
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testAnimation : function (){ |
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var myAnim = new Y.Anim({ |
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node: '#testDiv', |
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to: { |
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width: 400 |
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}, |
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duration: 3, |
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easing: Y.Easing.easeOut |
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}); |
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//assign oncomplete handler |
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myAnim.on("end", function(){ |
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//tell the TestRunner to resume |
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this.resume(function(){ |
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Y.Assert.areEqual(document.getElementById("testDiv").offsetWidth, 400, "Width of the DIV should be 400."); |
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}); |
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}, this, true); |
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//start the animation |
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myAnim.run(); |
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//wait until something happens |
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this.wait(); |
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} |
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}); |
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//create the console |
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(new Y.Test.Console({ |
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newestOnTop : false, |
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filters: { |
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pass: true, |
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fail: true |
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} |
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})).render('#testLogger'); |
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//create the logger |
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Y.Test.Runner.add(Y.example.test.AsyncTestCase); |
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//run the tests |
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Y.Test.Runner.run(); |
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}); |
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</script></pre> |
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</div> |
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</div> |
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</div> |
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<div class="yui3-u-1-4"> |
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<div class="sidebar"> |
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<div id="toc" class="sidebox"> |
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<div class="hd"> |
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<h2 class="no-toc">Table of Contents</h2> |
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</div> |
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<div class="bd"> |
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<ul class="toc"> |
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<li> |
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<a href="#asynchronous-events-test-example">Asynchronous Events Test Example</a> |
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<ul class="toc"> |
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<li> |
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<a href="#creating-the-testcase">Creating the TestCase</a> |
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</li> |
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<li> |
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<a href="#running-the-tests">Running the tests</a> |
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</li> |
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</ul> |
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</li> |
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<li> |
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<a href="#complete-example-source">Complete Example Source</a> |
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</li> |
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</ul> |
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</div> |
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</div> |
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<div class="sidebox"> |
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<div class="hd"> |
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<h2 class="no-toc">Examples</h2> |
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</div> |
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<div class="bd"> |
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<ul class="examples"> |
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<li data-description="Demonstrates basic usage of YUI Test for setting up and running tests."> |
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<a href="test-simple-example.html">Simple Testing Example</a> |
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</li> |
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<li data-description="Demonstrates how to use advanced testing features such as defining tests that should fail, tests that should be ignored, and tests that should throw an error."> |
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<a href="test-advanced-test-options.html">Advanced Test Options</a> |
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</li> |
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<li data-description="Demonstrates how to use the ArrayAssert object to test array data."> |
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<a href="test-array-tests.html">Array Processing</a> |
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</li> |
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<li data-description="Demonstrates basic asynchronous tests."> |
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<a href="test-async-test.html">Asynchronous Testing</a> |
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</li> |
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<li data-description="Demonstrates using events with asynchronous tests."> |
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<a href="test-async-event-tests.html">Asynchronous Event Testing</a> |
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</li> |
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</ul> |
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</div> |
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</div> |
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</div> |
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</div> |
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</div> |
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</div> |
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<script src="../assets/vendor/prettify/prettify-min.js"></script> |
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<script>prettyPrint();</script> |
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<script> |
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YUI.Env.Tests = { |
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examples: [], |
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project: '../assets', |
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assets: '../assets/test', |
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name: 'test-async-event-tests', |
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title: 'Asynchronous Event Testing', |
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newWindow: '', |
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auto: false |
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}; |
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YUI.Env.Tests.examples.push('test-simple-example'); |
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YUI.Env.Tests.examples.push('test-advanced-test-options'); |
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YUI.Env.Tests.examples.push('test-array-tests'); |
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YUI.Env.Tests.examples.push('test-async-test'); |
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YUI.Env.Tests.examples.push('test-async-event-tests'); |
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</script> |
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<script src="../assets/yui/test-runner.js"></script> |
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</body> |
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</html> |