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<!DOCTYPE html>
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<h3>BDD for JavaScript</h3>
<h4><a href="mailto:dwfrank@pivotallabs.com">Davis W. Frank</a> | <a href="http://pivotallabs.com">Pivotal Labs</a> | <a href="http://twitter.com/dwfrank">@dwfrank</a></h4>
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<h1>What about JavaScript?</h1>
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<h1><em>UT</em> YJSATFT</h1>
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<blockquote class="twitter-bubble" cite="http://twitter.com/#!/tom_b025/status/29591504502">
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Practising whilst testing with <a href="http://twitter.com/jasminebdd">@JasmineBDD</a> has improved my knowledge of JavaScript over the last few days.
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<a href="http://twitter.com/tom_b025">@tom_b025</a>
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<a href="http://twitter.com/#!/tom_b025/status/29591504502">03 Nov 2010</a>
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Using <a href="http://twitter.com/jasminebdd">@JasmineBDD</a> for testing JavaScript significantly speeds up the process/runtime. <a href="#">#rar10</a>
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<a href="http://twitter.com/coreyhaines">@coreyhaines</a>
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I've never bothered to test my JavaScript before now. It feels fantastic and <a href="http://twitter.com/jasminebdd">@JasmineBDD</a> flows like water. Very nice stuff.
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<a href="http://twitter.com/NathanStults">@NathanStults</a>
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<div class="highlight"><pre><span class="nx">describe</span><span class="p">(</span><span class="s2">"Math"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">describe</span><span class="p">(</span><span class="s2">".sqrt"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"returns the square root of a number"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">expect</span><span class="p">(</span><span class="nb">Math</span><span class="p">.</span><span class="nx">sqrt</span><span class="p">(</span><span class="mi">64</span><span class="p">)).</span><span class="nx">toEqual</span><span class="p">(</span><span class="mi">8</span><span class="p">);</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="p">});</span>
</pre></div>
</section>
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<section class="middle">
<p><img src="./images/simple-example-pass.jpg" alt="Example test run" /></p>
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<section>
<h1>As a site administrator</h1>
<p></p>
<p></p>
<h1>I want to obfuscate offensive language</h1>
<p></p>
<h1>So that I don't risk offending my users</h1>
</section>
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<h1>Expectations</h1>
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<section>
<div class="highlight"><pre><span class="nx">describe</span><span class="p">(</span><span class="s2">"String"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">describe</span><span class="p">(</span><span class="s2">".cleanUp"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"replaces restricted words with four asterisks"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">filterWords</span> <span class="o">=</span> <span class="p">[</span><span class="s2">"golly"</span><span class="p">,</span> <span class="s2">"heck"</span><span class="p">];</span>
<span class="nx">dirtyString</span> <span class="o">=</span> <span class="s2">"Golly! What the heck?"</span><span class="p">;</span>
<span class="nx">cleanString</span> <span class="o">=</span> <span class="nx">dirtyString</span><span class="p">.</span><span class="nx">cleanUp</span><span class="p">(</span><span class="nx">filterWords</span><span class="p">);</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">cleanString</span><span class="p">).</span><span class="nx">toEqual</span><span class="p">(</span><span class="s2">"****! What the ****?"</span><span class="p">);</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="p">});</span>
</pre></div>
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<section class="middle">
<p><img src="./images/string-failure.jpg" alt="Example test run" /></p>
</section>
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<section>
<div class="highlight"><pre><span class="nb">String</span><span class="p">.</span><span class="nx">prototype</span><span class="p">.</span><span class="nx">cleanUp</span> <span class="o">=</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">filterWords</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">pattern</span> <span class="o">=</span> <span class="nx">filterWords</span><span class="p">.</span><span class="nx">join</span><span class="p">(</span><span class="s2">"|"</span><span class="p">),</span>
<span class="nx">regExp</span> <span class="o">=</span> <span class="k">new</span> <span class="nb">RegExp</span><span class="p">(</span><span class="nx">pattern</span><span class="p">,</span> <span class="s2">"mig"</span><span class="p">);</span>
<span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">regExp</span><span class="p">,</span> <span class="s2">"****"</span><span class="p">);</span>
<span class="p">};</span>
</pre></div>
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<section class="middle">
<p><img src="./images/string-pass.jpg" alt="Example test run" /></p>
</section>
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</a>
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<section>
<h1>Matchers</h1>
<div class="highlight"><pre><span class="nx">expect</span><span class="p">(</span><span class="nx">cleanString</span><span class="p">).</span><span class="nx">toEqual</span><span class="p">(</span><span class="s2">"****! What the ****?"</span><span class="p">);</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">cleanString</span><span class="p">).</span><span class="nx">toMatch</span><span class="p">(</span><span class="k">new</span> <span class="nb">RegExp</span><span class="p">(</span><span class="s2">"\*{3}"</span><span class="p">));</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">cleanString</span><span class="p">).</span><span class="nx">toBeDefined</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">cleanString</span><span class="p">).</span><span class="nx">not</span><span class="p">.</span><span class="nx">toBeNull</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">cleanString</span><span class="p">).</span><span class="nx">toBeTruthy</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">cleanString</span><span class="p">).</span><span class="nx">not</span><span class="p">.</span><span class="nx">toBeFalsy</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">cleanString</span><span class="p">).</span><span class="nx">not</span><span class="p">.</span><span class="nx">toContain</span><span class="p">(</span><span class="s2">"golly"</span><span class="p">);</span>
</pre></div>
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<section>
<h1>Custom Matchers</h1>
<div class="highlight"><pre><span class="c1">// top-level beforeEach() call is made before every spec</span>
<span class="nx">beforeEach</span><span class="p">(</span><span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="k">this</span><span class="p">.</span><span class="nx">addMatchers</span><span class="p">({</span>
<span class="nx">toBeCleanedUp</span><span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">actual</span><span class="p">.</span><span class="nx">cleanUp</span><span class="p">(</span><span class="nx">filterWords</span><span class="p">)</span> <span class="o">!==</span> <span class="k">this</span><span class="p">.</span><span class="nx">actual</span><span class="p">;</span>
<span class="p">}</span>
<span class="p">});</span>
<span class="p">});</span>
</pre></div>
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<section>
<div class="highlight"><pre><span class="nx">describe</span><span class="p">(</span><span class="s2">".cleanUp"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">beforeEach</span><span class="p">(</span><span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">filterWords</span> <span class="o">=</span> <span class="p">[</span><span class="s2">"justin"</span><span class="p">,</span> <span class="s2">"bieber"</span><span class="p">];</span>
<span class="p">});</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"replaces restricted words with three asterisks"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">expect</span><span class="p">(</span><span class="s2">"Justin Bieber: My World"</span><span class="p">).</span><span class="nx">toBeCleanedUp</span><span class="p">();</span>
<span class="p">});</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"returns strings without restricted language unmodified"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">expect</span><span class="p">(</span><span class="s2">"Metric: Fantasies"</span><span class="p">).</span><span class="nx">not</span><span class="p">.</span><span class="nx">toBeCleanedUp</span><span class="p">();</span>
<span class="p">});</span>
<span class="p">});</span>
</pre></div>
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<section class="middle">
<p><img src="./images/custom-matcher-pass.jpg" alt="Example test run" /></p>
</section>
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<section class="middle">
<h1>Spies</h1>
</section>
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</a>
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<section>
<div class="highlight"><pre><span class="nx">describe</span><span class="p">(</span><span class="s2">".getTrends"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"requests current trends from Twitter's search API"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">spyOn</span><span class="p">(</span><span class="nx">jQuery</span><span class="p">,</span> <span class="s2">"getJSON"</span><span class="p">)</span>
<span class="nx">twitterApi</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">TwitterApi</span><span class="p">();</span>
<span class="nx">twitterApi</span><span class="p">.</span><span class="nx">getTrends</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">jQuery</span><span class="p">.</span><span class="nx">getJSON</span><span class="p">).</span><span class="nx">toHaveBeenCalledWith</span><span class="p">(</span>
<span class="s2">"http://search.twitter.com/trends.json?callback=?"</span><span class="p">,</span>
<span class="nx">jasmine</span><span class="p">.</span><span class="nx">any</span><span class="p">(</span><span class="nb">Function</span><span class="p">)</span>
<span class="p">);</span>
<span class="p">});</span>
<span class="p">});</span>
</pre></div>
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<section class="middle">
<p><img src="./images/spy-not-called.jpg" alt="Example test run" /></p>
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<div class="highlight"><pre><span class="kd">function</span> <span class="nx">TwitterApi</span><span class="p">()</span> <span class="p">{</span>
<span class="k">this</span><span class="p">.</span><span class="nx">trendsUrl</span> <span class="o">=</span> <span class="s2">"http://search.twitter.com/trends.json?callback=?"</span>
<span class="p">}</span>
<span class="nx">TwitterApi</span><span class="p">.</span><span class="nx">prototype</span> <span class="o">=</span> <span class="p">{</span>
<span class="nx">getTrends</span><span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">jQuery</span><span class="p">.</span><span class="nx">getJSON</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">trendsUrl</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">data</span><span class="p">,</span> <span class="nx">textStatus</span><span class="p">)</span> <span class="p">{});</span>
<span class="p">}</span>
<span class="p">};</span>
</pre></div>
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<p><img src="./images/spy-called.jpg" alt="Example test run" /></p>
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<div class="highlight"><pre><span class="nx">mockResponse</span> <span class="o">=</span> <span class="p">{</span>
<span class="nx">as_of</span><span class="o">:</span> <span class="s2">"2010-11-07 19:21"</span><span class="p">,</span>
<span class="nx">trends</span><span class="o">:</span> <span class="p">[</span>
<span class="p">{</span><span class="nx">name</span><span class="o">:</span> <span class="s2">"NYC Marathon"</span><span class="p">,</span> <span class="nx">url</span><span class="o">:</span> <span class="s2">"http://fake.url/nyc-marathon"</span><span class="p">},</span>
<span class="p">{</span><span class="nx">name</span><span class="o">:</span> <span class="s2">"Laphroaig"</span><span class="p">,</span> <span class="nx">url</span><span class="o">:</span> <span class="s2">"http://fake.url/laphroaig"</span><span class="p">},</span>
<span class="p">{</span><span class="nx">name</span><span class="o">:</span> <span class="s2">"Verizon iPad"</span><span class="p">,</span> <span class="nx">url</span><span class="o">:</span> <span class="s2">"http://fake.url/vzw-ipad"</span><span class="p">},</span>
<span class="p">{</span><span class="nx">name</span><span class="o">:</span> <span class="s2">"A380 Emergency"</span><span class="p">,</span> <span class="nx">url</span><span class="o">:</span> <span class="s2">"http://fake.url/a380-emergency"</span><span class="p">},</span>
<span class="p">{</span><span class="nx">name</span><span class="o">:</span> <span class="s2">"SF Giants"</span><span class="p">,</span> <span class="nx">url</span><span class="o">:</span> <span class="s2">"http://fake.url/sfgiants-world-series"</span><span class="p">}</span>
<span class="p">]</span>
<span class="p">};</span>
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<div class="highlight"><pre><span class="nx">describe</span><span class="p">(</span><span class="s2">"TwitterApi"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"responds with an array of current trends"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">spyOn</span><span class="p">(</span><span class="nx">jQuery</span><span class="p">,</span> <span class="s2">"getJSON"</span><span class="p">)</span>
<span class="nx">twitterApi</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">TwitterApi</span><span class="p">();</span>
<span class="kd">var</span> <span class="nx">trends</span> <span class="o">=</span> <span class="p">[];</span>
<span class="nx">twitterApi</span><span class="p">.</span><span class="nx">getTrends</span><span class="p">(</span><span class="kd">function</span><span class="p">(</span><span class="nx">response</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">trends</span> <span class="o">=</span> <span class="nx">response</span><span class="p">;</span>
<span class="p">});</span>
<span class="nx">jQuery</span><span class="p">.</span><span class="nx">getJSON</span><span class="p">.</span><span class="nx">mostRecentCall</span><span class="p">.</span><span class="nx">args</span><span class="p">[</span><span class="mi">1</span><span class="p">](</span><span class="nx">mockResponse</span><span class="p">);</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">trends</span><span class="p">.</span><span class="nx">length</span><span class="p">).</span><span class="nx">toEqual</span><span class="p">(</span><span class="mi">5</span><span class="p">);</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">trends</span><span class="p">[</span><span class="mi">1</span><span class="p">][</span><span class="s1">'name'</span><span class="p">]).</span><span class="nx">toEqual</span><span class="p">(</span><span class="s1">'Clojure'</span><span class="p">);</span>
<span class="p">});</span>
<span class="p">});</span>
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<p><img src="./images/spies-array-failure.jpg" alt="Example test run" /></p>
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<div class="highlight"><pre><span class="nx">TwitterApi</span><span class="p">.</span><span class="nx">prototype</span> <span class="o">=</span> <span class="p">{</span>
<span class="nx">getTrends</span><span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">callback</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">jQuery</span><span class="p">.</span><span class="nx">getJSON</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">trendsUrl</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">data</span><span class="p">,</span> <span class="nx">textStatus</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">callback</span><span class="p">(</span><span class="nx">data</span><span class="p">[</span><span class="s2">"trends"</span><span class="p">]);</span>
<span class="p">});</span>
<span class="p">}</span>
<span class="p">};</span>
</pre></div>
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<p><img src="./images/spies-array-pass.jpg" alt="Example test run" /></p>
</section>
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<a href="">
</a>
</div>
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<section>
<h1>Spy Matchers</h1>
<div class="highlight"><pre><span class="nx">spyOn</span><span class="p">(</span><span class="nx">jQuery</span><span class="p">,</span> <span class="s2">"getJSON"</span><span class="p">);</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">jQuery</span><span class="p">.</span><span class="nx">getJSON</span><span class="p">).</span><span class="nx">toHaveBeenCalled</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">jQuery</span><span class="p">.</span><span class="nx">getJSON</span><span class="p">).</span><span class="nx">toHaveBeenCalledWith</span><span class="p">(</span><span class="s2">"http://example.com/service.json"</span><span class="p">);</span>
</pre></div>
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<h1>Spy Definitions</h1>
<div class="highlight"><pre><span class="nx">spyOn</span><span class="p">(</span><span class="nb">Math</span><span class="p">,</span> <span class="s2">"sqrt"</span><span class="p">).</span><span class="nx">andCallThrough</span><span class="p">();</span> <span class="c1">// Calls the original function</span>
<span class="nx">spyOn</span><span class="p">(</span><span class="nb">Math</span><span class="p">,</span> <span class="s2">"sqrt"</span><span class="p">).</span><span class="nx">andReturn</span><span class="p">(</span><span class="mi">42</span><span class="p">);</span> <span class="c1">// Return 42</span>
<span class="nx">spyOn</span><span class="p">(</span><span class="nb">Math</span><span class="p">,</span> <span class="s2">"sqrt"</span><span class="p">).</span><span class="nx">andThrow</span><span class="p">(</span><span class="s2">"Exception"</span><span class="p">);</span> <span class="c1">// Throws an exception</span>
<span class="nx">spyOn</span><span class="p">(</span><span class="nb">Math</span><span class="p">,</span> <span class="s2">"sqrt"</span><span class="p">).</span><span class="nx">andCallFake</span><span class="p">(</span><span class="kd">function</span><span class="p">(</span><span class="nx">arg</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="nx">arg</span> <span class="o">*</span> <span class="nb">Math</span><span class="p">.</span><span class="nx">random</span><span class="p">();</span>
<span class="p">});</span> <span class="c1">// Substitute with fake anonymous function</span>
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<h1>Spy Properties</h1>
<div class="highlight"><pre><span class="nx">spyOn</span><span class="p">(</span><span class="nx">jQuery</span><span class="p">,</span> <span class="s2">"getJSON"</span><span class="p">);</span>
<span class="nx">jQuery</span><span class="p">.</span><span class="nx">getJSON</span><span class="p">.</span><span class="nx">callCount</span><span class="p">;</span> <span class="c1">// Number of calls to spy</span>
<span class="nx">jQuery</span><span class="p">.</span><span class="nx">getJSON</span><span class="p">.</span><span class="nx">mostRecentCall</span><span class="p">.</span><span class="nx">args</span><span class="p">;</span> <span class="c1">// Arguments for most recent call to the spy</span>
<span class="nx">jQuery</span><span class="p">.</span><span class="nx">getJSON</span><span class="p">.</span><span class="nx">argsForCall</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span> <span class="c1">// Arguments for a specific call to the spy</span>
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<h1>DOM Fixtures and jQuery</h1>
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<div class="highlight"><pre><span class="nx">describe</span><span class="p">(</span><span class="s2">"TwitterApi"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">beforeEach</span><span class="p">(</span><span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">jQuery</span><span class="p">(</span><span class="s1">'<div id="trends" />'</span><span class="p">).</span><span class="nx">appendTo</span><span class="p">(</span><span class="s2">"#jasmine_content"</span><span class="p">);</span>
<span class="p">});</span>
<span class="nx">afterEach</span><span class="p">(</span><span class="kd">function</span><span class="p">()</span> <span class="p">{</span> <span class="nx">jQuery</span><span class="p">(</span><span class="s2">"#trends"</span><span class="p">).</span><span class="nx">remove</span><span class="p">();</span> <span class="p">});</span>
<span class="nx">describe</span><span class="p">(</span><span class="s2">".updateTrends"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"builds a link for each trend and attaches it to #trends"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">twitterApi</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">TwitterApi</span><span class="p">();</span>
<span class="nx">twitterApi</span><span class="p">.</span><span class="nx">updateTrends</span><span class="p">(</span><span class="nx">mockResponse</span><span class="p">.</span><span class="nx">trends</span><span class="p">);</span>
<span class="nx">href</span> <span class="o">=</span> <span class="nx">jQuery</span><span class="p">(</span><span class="s1">'#trends li a:contains(iPad)'</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s1">'href'</span><span class="p">);</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">href</span><span class="p">).</span><span class="nx">toEqual</span><span class="p">(</span><span class="s1">'http://fake.url/ipad'</span><span class="p">);</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="p">});</span>
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<div class="highlight"><pre><span class="nx">TwitterApi</span><span class="p">.</span><span class="nx">prototype</span> <span class="o">=</span> <span class="p">{</span>
<span class="nx">updateTrends</span><span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">trends</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">jQuery</span><span class="p">.</span><span class="nx">each</span><span class="p">(</span><span class="nx">trends</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="nx">trend</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">li</span> <span class="o">=</span> <span class="nx">jQuery</span><span class="p">(</span><span class="s2">"<li />"</span><span class="p">);</span>
<span class="nx">jQuery</span><span class="p">(</span><span class="s2">"<a />"</span><span class="p">)</span>
<span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"href"</span><span class="p">,</span> <span class="nx">trend</span><span class="p">.</span><span class="nx">url</span><span class="p">)</span>
<span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"target"</span><span class="p">,</span> <span class="s2">"_blank"</span><span class="p">)</span>
<span class="p">.</span><span class="nx">html</span><span class="p">(</span><span class="nx">trend</span><span class="p">.</span><span class="nx">name</span><span class="p">)</span>
<span class="p">.</span><span class="nx">appendTo</span><span class="p">(</span><span class="nx">li</span><span class="p">);</span>
<span class="nx">li</span><span class="p">.</span><span class="nx">appendTo</span><span class="p">(</span><span class="s2">"#trends"</span><span class="p">);</span>
<span class="p">});</span>
<span class="p">}</span>
<span class="p">}</span>
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<p><img src="./images/trends-pass.jpg" alt="Example test run" /></p>
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<p><img src="./images/trends.jpg" alt="Screenshot" /></p>
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<h1>How?</h1>
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<h1>Jasmine</h1>
<div class="highlight"><pre><span class="nt"><script </span><span class="na">type=</span><span class="s">"text/javascript"</span> <span class="na">src=</span><span class="s">"jasmine.js"</span> <span class="nt">/></span>
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<section>
<h1>Well, really it's:</h1>
<pre>
<span class="cp"><!DOCTYPE HTML></span>
<span class="nt"><html></span>
<span class="nt"><head></span>
<span class="nt"><title></span>Jasmine Test Runner<span class="nt"></title></span>
<span class="nt"><link</span> <span class="na">rel=</span><span class="s">"stylesheet"</span> <span class="na">type=</span><span class="s">"text/css"</span> <span class="na">href=</span><span class="s">"jasmine.css"</span> <span class="nt">/></span>
<span class="nt"><script </span><span class="na">type=</span><span class="s">"text/javascript"</span> <span class="na">src=</span><span class="s">"jasmine.js"</span><span class="nt">></script></span>
<span class="nt"><script </span><span class="na">type=</span><span class="s">"text/javascript"</span> <span class="na">src=</span><span class="s">"jasmine-html.js"</span><span class="nt">></script></span>
<span class="c"><!-- include source files here... --></span>
<span class="nt"><script </span><span class="na">type=</span><span class="s">"text/javascript"</span> <span class="na">src=</span><span class="s">"src/Player.js"</span><span class="nt">></script></span>
<span class="nt"><script </span><span class="na">type=</span><span class="s">"text/javascript"</span> <span class="na">src=</span><span class="s">"src/Song.js"</span><span class="nt">></script></span>
<span class="c"><!-- include spec files here... --></span>
<span class="nt"><script </span><span class="na">type=</span><span class="s">"text/javascript"</span> <span class="na">src=</span><span class="s">"spec/SpecHelper.js"</span><span class="nt">></script></span>
<span class="nt"><script </span><span class="na">type=</span><span class="s">"text/javascript"</span> <span class="na">src=</span><span class="s">"spec/PlayerSpec.js"</span><span class="nt">></script></span>
<span class="nt"></head></span>
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<span class="nx">jasmine</span><span class="p">.</span><span class="nx">getEnv</span><span class="p">().</span><span class="nx">execute</span><span class="p">();</span>
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<h1>Jasmine Gem</h1>
<h2>Test without thinking</h2>
<p>For projects where Ruby is (at least) welcome</p>
<div class="highlight"><pre><span class="nv">$ </span>gem install jasmine
<span class="nv">$ </span>mkdir app
<span class="nv">$ </span>jasmine init
<span class="nv">$ </span>rake jasmine
your tests are here: http://localhost:8888/
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<p><img src="./images/jasmine-init.jpg" alt="Textmate" /></p>
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<h1>Continuous Integration</h1>
<div class="highlight"><pre><span class="nv">$ </span>rake jasmine:ci