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  <title>rcov/ruby/1.8/gems/rspec-expectations-2.5.0/lib/rspec/matchers/throw_symbol.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/throw_symbol.rb</h2>

  <div class="report_table_wrapper">
    <table class='report' id='report_table'>
      <thead>
        <tr>
          <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>
        </tr>
      </thead>
      <tbody>
        <tr>
          <td class="left_align"><a href="rcov-ruby-1_8-gems-rspec-expectations-2_5_0-lib-rspec-matchers-throw_symbol_rb.html">rcov/ruby/1.8/gems/rspec-expectations-2.5.0/lib/rspec/matchers/throw_symbol.rb</a></td>
          <td class='right_align'><tt>121</tt></td>
          <td class='right_align'><tt>80</tt></td>
          <td class="left_align"><div class="percent_graph_legend"><tt class=''>38.84%</tt></div>
        <div class="percent_graph">
          <div class="covered" style="width:39px"></div>
          <div class="uncovered" style="width:61px"></div>
        </div></td>
          <td class="left_align"><div class="percent_graph_legend"><tt class=''>16.25%</tt></div>
        <div class="percent_graph">
          <div class="covered" style="width:16px"></div>
          <div class="uncovered" style="width:84px"></div>
        </div></td>
        </tr>
      </tbody>
    </table>
  </div>

  <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>

  <table class="details">
    <tbody>

        <tr class="marked">
          <td><pre><a name="line1">1</a> module RSpec</pre></td>
        </tr>

        <tr class="marked">
          <td><pre><a name="line2">2</a>   module Matchers</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line3">3</a>     </pre></td>
        </tr>

        <tr class="marked">
          <td><pre><a name="line4">4</a>     class ThrowSymbol #:nodoc:</pre></td>
        </tr>

        <tr class="marked">
          <td><pre><a name="line5">5</a>       def initialize(expected_symbol = nil, expected_arg=nil)</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line6">6</a>         @expected_symbol = expected_symbol</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line7">7</a>         @expected_arg = expected_arg</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line8">8</a>         @caught_symbol = @caught_arg = nil</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line9">9</a>       end</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line10">10</a>       </pre></td>
        </tr>

        <tr class="marked">
          <td><pre><a name="line11">11</a>       def matches?(given_proc)</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line12">12</a>         begin</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line13">13</a>           if @expected_symbol.nil?</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line14">14</a>             given_proc.call</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line15">15</a>           else</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line16">16</a>             @caught_arg = catch :proc_did_not_throw_anything do</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line17">17</a>               catch @expected_symbol do</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line18">18</a>                 given_proc.call</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line19">19</a>                 throw :proc_did_not_throw_anything, :nothing_thrown</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line20">20</a>               end</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line21">21</a>             end</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line22">22</a> </pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line23">23</a>             if @caught_arg == :nothing_thrown</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line24">24</a>               @caught_arg = nil</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line25">25</a>             else</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line26">26</a>               @caught_symbol = @expected_symbol</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line27">27</a>             end</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line28">28</a>           end</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line29">29</a> </pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line30">30</a>         # Ruby 1.8 uses NameError with `symbol'</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line31">31</a>         # Ruby 1.9 uses ArgumentError with :symbol</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line32">32</a>         rescue NameError, ArgumentError =&gt; e</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line33">33</a>           unless e.message =~ /uncaught throw (`|\:)([a-zA-Z0-9_]*)(')?/</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line34">34</a>             other_exception = e</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line35">35</a>             raise</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line36">36</a>           end</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line37">37</a>           @caught_symbol = $2.to_sym</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line38">38</a>         rescue =&gt; other_exception</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line39">39</a>           raise</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line40">40</a>         ensure</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line41">41</a>           unless other_exception</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line42">42</a>             if @expected_symbol.nil?</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line43">43</a>               return !@caught_symbol.nil?</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line44">44</a>             else</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line45">45</a>               if @expected_arg.nil?</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line46">46</a>                 return @caught_symbol == @expected_symbol</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line47">47</a>               else</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line48">48</a>                 return (@caught_symbol == @expected_symbol) &amp; (@caught_arg == @expected_arg)</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line49">49</a>               end</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line50">50</a>             end</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line51">51</a>           end</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line52">52</a>         end</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line53">53</a>       end</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line54">54</a> </pre></td>
        </tr>

        <tr class="marked">
          <td><pre><a name="line55">55</a>       def failure_message_for_should</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line56">56</a>         &quot;expected #{expected} to be thrown, got #{caught}&quot;</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line57">57</a>       end</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line58">58</a>       </pre></td>
        </tr>

        <tr class="marked">
          <td><pre><a name="line59">59</a>       def failure_message_for_should_not</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line60">60</a>         &quot;expected #{expected('no Symbol')}#{' not' if @expected_symbol} to be thrown, got #{caught}&quot;</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line61">61</a>       end</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line62">62</a>       </pre></td>
        </tr>

        <tr class="marked">
          <td><pre><a name="line63">63</a>       def description</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line64">64</a>         &quot;throw #{expected}&quot;</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line65">65</a>       end</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line66">66</a>       </pre></td>
        </tr>

        <tr class="marked">
          <td><pre><a name="line67">67</a>       private</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line68">68</a> </pre></td>
        </tr>

        <tr class="marked">
          <td><pre><a name="line69">69</a>         def expected(symbol_desc = 'a Symbol')</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line70">70</a>           throw_description(@expected_symbol || symbol_desc, @expected_arg)</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line71">71</a>         end</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line72">72</a> </pre></td>
        </tr>

        <tr class="marked">
          <td><pre><a name="line73">73</a>         def caught</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line74">74</a>           throw_description(@caught_symbol || 'nothing', @caught_arg)</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line75">75</a>         end</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line76">76</a> </pre></td>
        </tr>

        <tr class="marked">
          <td><pre><a name="line77">77</a>         def throw_description(symbol, arg)</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line78">78</a>           symbol_description = symbol.is_a?(String) ? symbol : symbol.inspect</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line79">79</a> </pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line80">80</a>           arg_description = if arg</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line81">81</a>             &quot; with #{arg.inspect}&quot;</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line82">82</a>           elsif @expected_arg &amp;&amp; @caught_symbol == @expected_symbol</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line83">83</a>             &quot; with no argument&quot;</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line84">84</a>           else</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line85">85</a>             &quot;&quot;</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line86">86</a>           end</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line87">87</a> </pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line88">88</a>           symbol_description + arg_description</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line89">89</a>         end</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line90">90</a> </pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line91">91</a>     end</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line92">92</a>  </pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line93">93</a>     # :call-seq:</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line94">94</a>     #   should throw_symbol()</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line95">95</a>     #   should throw_symbol(:sym)</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line96">96</a>     #   should throw_symbol(:sym, arg)</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line97">97</a>     #   should_not throw_symbol()</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line98">98</a>     #   should_not throw_symbol(:sym)</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line99">99</a>     #   should_not throw_symbol(:sym, arg)</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line100">100</a>     #</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line101">101</a>     # Given no argument, matches if a proc throws any Symbol.</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line102">102</a>     #</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line103">103</a>     # Given a Symbol, matches if the given proc throws the specified Symbol.</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line104">104</a>     #</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line105">105</a>     # Given a Symbol and an arg, matches if the given proc throws the</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line106">106</a>     # specified Symbol with the specified arg.</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line107">107</a>     #</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line108">108</a>     # == Examples</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line109">109</a>     #</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line110">110</a>     #   lambda { do_something_risky }.should throw_symbol</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line111">111</a>     #   lambda { do_something_risky }.should throw_symbol(:that_was_risky)</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line112">112</a>     #   lambda { do_something_risky }.should throw_symbol(:that_was_risky, culprit)</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line113">113</a>     #</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line114">114</a>     #   lambda { do_something_risky }.should_not throw_symbol</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line115">115</a>     #   lambda { do_something_risky }.should_not throw_symbol(:that_was_risky)</pre></td>
        </tr>

        <tr class="inferred">
          <td><pre><a name="line116">116</a>     #   lambda { do_something_risky }.should_not throw_symbol(:that_was_risky, culprit)</pre></td>
        </tr>

        <tr class="marked">
          <td><pre><a name="line117">117</a>     def throw_symbol(expected_symbol = nil, expected_arg=nil)</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line118">118</a>       Matchers::ThrowSymbol.new(expected_symbol, expected_arg)</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line119">119</a>     end</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line120">120</a>   end</pre></td>
        </tr>

        <tr class="uncovered">
          <td><pre><a name="line121">121</a> end</pre></td>
        </tr>

    </tbody>
  </table>

  <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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