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  <title>rcov/ruby/1.8/gems/rspec-expectations-2.5.0/lib/rspec/matchers/extensions/instance_exec.rb</title>
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  <h1>Rspec Steps C0 Coverage Information - RCov</h1>
  <h2>rcov/ruby/1.8/gems/rspec-expectations-2.5.0/lib/rspec/matchers/extensions/instance_exec.rb</h2>

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          <th class="left_align">Name</th>
          <th class="right_align">Total Lines</th>
          <th class="right_align">Lines of Code</th>
          <th class="left_align">Total Coverage</th>
          <th class="left_align">Code Coverage</th>
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      </thead>
      <tbody>
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          <td class="left_align"><a href="rcov-ruby-1_8-gems-rspec-expectations-2_5_0-lib-rspec-matchers-extensions-instance_exec_rb.html">rcov/ruby/1.8/gems/rspec-expectations-2.5.0/lib/rspec/matchers/extensions/instance_exec.rb</a></td>
          <td class='right_align'><tt>31</tt></td>
          <td class='right_align'><tt>24</tt></td>
          <td class="left_align"><div class="percent_graph_legend"><tt class=''>12.90%</tt></div>
        <div class="percent_graph">
          <div class="covered" style="width:13px"></div>
          <div class="uncovered" style="width:87px"></div>
        </div></td>
          <td class="left_align"><div class="percent_graph_legend"><tt class=''>16.67%</tt></div>
        <div class="percent_graph">
          <div class="covered" style="width:17px"></div>
          <div class="uncovered" style="width:83px"></div>
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  <h3>Key</h3>

  <div class="key"><pre><span class='marked'>Code reported as executed by Ruby looks like this...</span><span class='marked1'>and this: this line is also marked as covered.</span><span class='inferred'>Lines considered as run by rcov, but not reported by Ruby, look like this,</span><span class='inferred1'>and this: these lines were inferred by rcov (using simple heuristics).</span><span class='uncovered'>Finally, here's a line marked as not executed.</span></pre></div>

  <h3>Coverage Details</h3>

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          <td><pre><a name="line1">1</a> module RSpec</pre></td>
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          <td><pre><a name="line2">2</a>   module Matchers</pre></td>
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          <td><pre><a name="line3">3</a>     module InstanceExec</pre></td>
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          <td><pre><a name="line4">4</a>       unless respond_to?(:instance_exec)</pre></td>
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          <td><pre><a name="line5">5</a>         # based on Bounded Spec InstanceExec (Mauricio Fernandez)</pre></td>
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          <td><pre><a name="line6">6</a>         # http://eigenclass.org/hiki/bounded+space+instance_exec</pre></td>
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          <td><pre><a name="line7">7</a>         # - uses singleton_class of matcher instead of global</pre></td>
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          <td><pre><a name="line8">8</a>         #   InstanceExecHelper module</pre></td>
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        <tr class="uncovered">
          <td><pre><a name="line9">9</a>         # - this keeps it scoped to this class only, which is the</pre></td>
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        <tr class="uncovered">
          <td><pre><a name="line10">10</a>         #   only place we need it</pre></td>
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        <tr class="uncovered">
          <td><pre><a name="line11">11</a>         # - only necessary for ruby 1.8.6</pre></td>
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          <td><pre><a name="line12">12</a>         def instance_exec(*args, &amp;block)</pre></td>
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          <td><pre><a name="line13">13</a>           singleton_class = (class &lt;&lt; self; self; end)</pre></td>
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          <td><pre><a name="line14">14</a>           begin</pre></td>
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          <td><pre><a name="line15">15</a>             orig_critical, Thread.critical = Thread.critical, true</pre></td>
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          <td><pre><a name="line16">16</a>             n = 0</pre></td>
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          <td><pre><a name="line17">17</a>             n += 1 while respond_to?(method_name=&quot;__instance_exec#{n}&quot;)</pre></td>
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          <td><pre><a name="line18">18</a>             singleton_class.module_eval{ define_method(method_name, &amp;block) }</pre></td>
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          <td><pre><a name="line19">19</a>           ensure</pre></td>
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          <td><pre><a name="line20">20</a>             Thread.critical = orig_critical</pre></td>
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          <td><pre><a name="line21">21</a>           end</pre></td>
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          <td><pre><a name="line22">22</a>           begin</pre></td>
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          <td><pre><a name="line23">23</a>             return send(method_name, *args)</pre></td>
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          <td><pre><a name="line24">24</a>           ensure</pre></td>
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          <td><pre><a name="line25">25</a>             singleton_class.module_eval{ remove_method(method_name) } rescue nil</pre></td>
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          <td><pre><a name="line26">26</a>           end</pre></td>
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          <td><pre><a name="line27">27</a>         end</pre></td>
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          <td><pre><a name="line28">28</a>       end</pre></td>
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          <td><pre><a name="line29">29</a>     end</pre></td>
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          <td><pre><a name="line30">30</a>   end</pre></td>
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          <td><pre><a name="line31">31</a> end</pre></td>
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  <p>Generated on Fri Apr 22 17:22:41 -0700 2011 with <a href="http://github.com/relevance/rcov">rcov 0.9.8</a></p>

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