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<a href="#SpyStrategySpec.js" name="SpyStrategySpec.js" class="pilcrow">¶</a>SpyStrategySpec.js
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<td class="code highlight"><div class="highlight"><pre><span class="nx">describe</span><span class="p">(</span><span class="s2">"SpyStrategy"</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">"defaults its name to unknown"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">spyStrategy</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">j$</span><span class="p">.</span><span class="nx">SpyStrategy</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">identity</span><span class="p">()).</span><span class="nx">toEqual</span><span class="p">(</span><span class="s2">"unknown"</span><span class="p">);</span>
<span class="p">});</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"takes a name"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">spyStrategy</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">j$</span><span class="p">.</span><span class="nx">SpyStrategy</span><span class="p">({</span><span class="nx">name</span><span class="o">:</span> <span class="s2">"foo"</span><span class="p">});</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">identity</span><span class="p">()).</span><span class="nx">toEqual</span><span class="p">(</span><span class="s2">"foo"</span><span class="p">);</span>
<span class="p">});</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"stubs an original function, if provided"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">originalFn</span> <span class="o">=</span> <span class="nx">jasmine</span><span class="p">.</span><span class="nx">createSpy</span><span class="p">(</span><span class="s2">"original"</span><span class="p">),</span>
<span class="nx">spyStrategy</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">j$</span><span class="p">.</span><span class="nx">SpyStrategy</span><span class="p">({</span><span class="nx">fn</span><span class="o">:</span> <span class="nx">originalFn</span><span class="p">});</span>
<span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">exec</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">originalFn</span><span class="p">).</span><span class="nx">not</span><span class="p">.</span><span class="nx">toHaveBeenCalled</span><span class="p">();</span>
<span class="p">});</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"allows an original function to be called, passed through the params and returns it's value"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">originalFn</span> <span class="o">=</span> <span class="nx">jasmine</span><span class="p">.</span><span class="nx">createSpy</span><span class="p">(</span><span class="s2">"original"</span><span class="p">).</span><span class="nx">and</span><span class="p">.</span><span class="nx">returnValue</span><span class="p">(</span><span class="mi">42</span><span class="p">),</span>
<span class="nx">spyStrategy</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">j$</span><span class="p">.</span><span class="nx">SpyStrategy</span><span class="p">({</span><span class="nx">fn</span><span class="o">:</span> <span class="nx">originalFn</span><span class="p">}),</span>
<span class="nx">returnValue</span><span class="p">;</span>
<span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">callThrough</span><span class="p">();</span>
<span class="nx">returnValue</span> <span class="o">=</span> <span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">exec</span><span class="p">(</span><span class="s2">"foo"</span><span class="p">);</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">originalFn</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">originalFn</span><span class="p">.</span><span class="nx">calls</span><span class="p">.</span><span class="nx">mostRecent</span><span class="p">().</span><span class="nx">args</span><span class="p">).</span><span class="nx">toEqual</span><span class="p">([</span><span class="s2">"foo"</span><span class="p">]);</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">returnValue</span><span class="p">).</span><span class="nx">toEqual</span><span class="p">(</span><span class="mi">42</span><span class="p">);</span>
<span class="p">});</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"can return a specified value when executed"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">originalFn</span> <span class="o">=</span> <span class="nx">jasmine</span><span class="p">.</span><span class="nx">createSpy</span><span class="p">(</span><span class="s2">"original"</span><span class="p">),</span>
<span class="nx">spyStrategy</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">j$</span><span class="p">.</span><span class="nx">SpyStrategy</span><span class="p">({</span><span class="nx">fn</span><span class="o">:</span> <span class="nx">originalFn</span><span class="p">}),</span>
<span class="nx">returnValue</span><span class="p">;</span>
<span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">returnValue</span><span class="p">(</span><span class="mi">17</span><span class="p">);</span>
<span class="nx">returnValue</span> <span class="o">=</span> <span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">exec</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">originalFn</span><span class="p">).</span><span class="nx">not</span><span class="p">.</span><span class="nx">toHaveBeenCalled</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">returnValue</span><span class="p">).</span><span class="nx">toEqual</span><span class="p">(</span><span class="mi">17</span><span class="p">);</span>
<span class="p">});</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"allows an exception to be thrown when executed"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">originalFn</span> <span class="o">=</span> <span class="nx">jasmine</span><span class="p">.</span><span class="nx">createSpy</span><span class="p">(</span><span class="s2">"original"</span><span class="p">),</span>
<span class="nx">spyStrategy</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">j$</span><span class="p">.</span><span class="nx">SpyStrategy</span><span class="p">({</span><span class="nx">fn</span><span class="o">:</span> <span class="nx">originalFn</span><span class="p">});</span>
<span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">throwError</span><span class="p">(</span><span class="k">new</span> <span class="nx">TypeError</span><span class="p">(</span><span class="s2">"bar"</span><span class="p">));</span>
<span class="nx">expect</span><span class="p">(</span><span class="kd">function</span><span class="p">()</span> <span class="p">{</span> <span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">exec</span><span class="p">();</span> <span class="p">}).</span><span class="nx">toThrowError</span><span class="p">(</span><span class="nx">TypeError</span><span class="p">,</span> <span class="s2">"bar"</span><span class="p">);</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">originalFn</span><span class="p">).</span><span class="nx">not</span><span class="p">.</span><span class="nx">toHaveBeenCalled</span><span class="p">();</span>
<span class="p">});</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"allows a non-Error to be thrown, wrapping it into an exception when executed"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">originalFn</span> <span class="o">=</span> <span class="nx">jasmine</span><span class="p">.</span><span class="nx">createSpy</span><span class="p">(</span><span class="s2">"original"</span><span class="p">),</span>
<span class="nx">spyStrategy</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">j$</span><span class="p">.</span><span class="nx">SpyStrategy</span><span class="p">({</span><span class="nx">fn</span><span class="o">:</span> <span class="nx">originalFn</span><span class="p">});</span>
<span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">throwError</span><span class="p">(</span><span class="s2">"bar"</span><span class="p">);</span>
<span class="nx">expect</span><span class="p">(</span><span class="kd">function</span><span class="p">()</span> <span class="p">{</span> <span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">exec</span><span class="p">();</span> <span class="p">}).</span><span class="nx">toThrowError</span><span class="p">(</span><span class="nb">Error</span><span class="p">,</span> <span class="s2">"bar"</span><span class="p">);</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">originalFn</span><span class="p">).</span><span class="nx">not</span><span class="p">.</span><span class="nx">toHaveBeenCalled</span><span class="p">();</span>
<span class="p">});</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"allows a fake function to be called instead"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">originalFn</span> <span class="o">=</span> <span class="nx">jasmine</span><span class="p">.</span><span class="nx">createSpy</span><span class="p">(</span><span class="s2">"original"</span><span class="p">),</span>
<span class="nx">fakeFn</span> <span class="o">=</span> <span class="nx">jasmine</span><span class="p">.</span><span class="nx">createSpy</span><span class="p">(</span><span class="s2">"fake"</span><span class="p">).</span><span class="nx">and</span><span class="p">.</span><span class="nx">returnValue</span><span class="p">(</span><span class="mi">67</span><span class="p">),</span>
<span class="nx">spyStrategy</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">j$</span><span class="p">.</span><span class="nx">SpyStrategy</span><span class="p">({</span><span class="nx">fn</span><span class="o">:</span> <span class="nx">originalFn</span><span class="p">}),</span>
<span class="nx">returnValue</span><span class="p">;</span>
<span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">callFake</span><span class="p">(</span><span class="nx">fakeFn</span><span class="p">);</span>
<span class="nx">returnValue</span> <span class="o">=</span> <span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">exec</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">originalFn</span><span class="p">).</span><span class="nx">not</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">returnValue</span><span class="p">).</span><span class="nx">toEqual</span><span class="p">(</span><span class="mi">67</span><span class="p">);</span>
<span class="p">});</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"allows a return to plan stubbing after another strategy"</span><span class="p">,</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">originalFn</span> <span class="o">=</span> <span class="nx">jasmine</span><span class="p">.</span><span class="nx">createSpy</span><span class="p">(</span><span class="s2">"original"</span><span class="p">),</span>
<span class="nx">fakeFn</span> <span class="o">=</span> <span class="nx">jasmine</span><span class="p">.</span><span class="nx">createSpy</span><span class="p">(</span><span class="s2">"fake"</span><span class="p">).</span><span class="nx">and</span><span class="p">.</span><span class="nx">returnValue</span><span class="p">(</span><span class="mi">67</span><span class="p">),</span>
<span class="nx">spyStrategy</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">j$</span><span class="p">.</span><span class="nx">SpyStrategy</span><span class="p">({</span><span class="nx">fn</span><span class="o">:</span> <span class="nx">originalFn</span><span class="p">}),</span>
<span class="nx">returnValue</span><span class="p">;</span>
<span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">callFake</span><span class="p">(</span><span class="nx">fakeFn</span><span class="p">);</span>
<span class="nx">returnValue</span> <span class="o">=</span> <span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">exec</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">originalFn</span><span class="p">).</span><span class="nx">not</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">returnValue</span><span class="p">).</span><span class="nx">toEqual</span><span class="p">(</span><span class="mi">67</span><span class="p">);</span>
<span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">stub</span><span class="p">();</span>
<span class="nx">returnValue</span> <span class="o">=</span> <span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">exec</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">returnValue</span><span class="p">).</span><span class="nx">toEqual</span><span class="p">(</span><span class="k">void</span> <span class="mi">0</span><span class="p">);</span>
<span class="p">});</span>
<span class="nx">it</span><span class="p">(</span><span class="s2">"returns the spy after changing the strategy"</span><span class="p">,</span> <span class="kd">function</span><span class="p">(){</span>
<span class="kd">var</span> <span class="nx">spy</span> <span class="o">=</span> <span class="p">{},</span>
<span class="nx">spyFn</span> <span class="o">=</span> <span class="nx">jasmine</span><span class="p">.</span><span class="nx">createSpy</span><span class="p">(</span><span class="s1">'spyFn'</span><span class="p">).</span><span class="nx">and</span><span class="p">.</span><span class="nx">returnValue</span><span class="p">(</span><span class="nx">spy</span><span class="p">),</span>
<span class="nx">spyStrategy</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">j$</span><span class="p">.</span><span class="nx">SpyStrategy</span><span class="p">({</span><span class="nx">getSpy</span><span class="o">:</span> <span class="nx">spyFn</span><span class="p">});</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">callThrough</span><span class="p">()).</span><span class="nx">toBe</span><span class="p">(</span><span class="nx">spy</span><span class="p">);</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">returnValue</span><span class="p">()).</span><span class="nx">toBe</span><span class="p">(</span><span class="nx">spy</span><span class="p">);</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">throwError</span><span class="p">()).</span><span class="nx">toBe</span><span class="p">(</span><span class="nx">spy</span><span class="p">);</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">callFake</span><span class="p">()).</span><span class="nx">toBe</span><span class="p">(</span><span class="nx">spy</span><span class="p">);</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">spyStrategy</span><span class="p">.</span><span class="nx">stub</span><span class="p">()).</span><span class="nx">toBe</span><span class="p">(</span><span class="nx">spy</span><span class="p">);</span>
<span class="p">});</span>
<span class="p">});</span>
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