<!DOCTYPE html PUBLIC β-//W3C//DTD XHTML 1.0 Transitional//ENβ βwww.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtdβ> <html lang='en' xml:lang='en' xmlns='www.w3.org/1999/xhtml'>
<head> <title>rcov/ruby/1.8/gems/rspec-core-2.5.1/lib/rspec/core/let.rb</title> <link href="screen.css" media="all" rel="stylesheet" type="text/css" /> <link href="print.css" media="print" rel="stylesheet" type="text/css" /> <meta http-equiv="Content-type" content="text/html;charset=UTF-8" /> <script type="text/javascript" src="rcov.js"></script> </head> <body> <h1>Rspec Steps C0 Coverage Information - RCov</h1> <h2>rcov/ruby/1.8/gems/rspec-core-2.5.1/lib/rspec/core/let.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-core-2_5_1-lib-rspec-core-let_rb.html">rcov/ruby/1.8/gems/rspec-core-2.5.1/lib/rspec/core/let.rb</a></td> <td class='right_align'><tt>101</tt></td> <td class='right_align'><tt>26</tt></td> <td class="left_align"><div class="percent_graph_legend"><tt class=''>89.11%</tt></div> <div class="percent_graph"> <div class="covered" style="width:89px"></div> <div class="uncovered" style="width:11px"></div> </div></td> <td class="left_align"><div class="percent_graph_legend"><tt class=''>57.69%</tt></div> <div class="percent_graph"> <div class="covered" style="width:58px"></div> <div class="uncovered" style="width:42px"></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 Core</pre></td> </tr> <tr class="marked"> <td><pre><a name="line3">3</a> module Let</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line4">4</a> </pre></td> </tr> <tr class="marked"> <td><pre><a name="line5">5</a> module ClassMethods</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line6">6</a> # Generates a method whose return value is memoized</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line7">7</a> # after the first call.</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line8">8</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line9">9</a> # == Examples</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line10">10</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line11">11</a> # describe Thing do</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line12">12</a> # let(:thing) { Thing.new }</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line13">13</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line14">14</a> # it "does something" do</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line15">15</a> # # first invocation, executes block, memoizes and returns result</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line16">16</a> # thing.do_something</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line17">17</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line18">18</a> # # second invocation, returns the memoized value</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line19">19</a> # thing.should be_something</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line20">20</a> # end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line21">21</a> # end</pre></td> </tr> <tr class="marked"> <td><pre><a name="line22">22</a> def let(name, &block)</pre></td> </tr> <tr class="uncovered"> <td><pre><a name="line23">23</a> define_method(name) do</pre></td> </tr> <tr class="uncovered"> <td><pre><a name="line24">24</a> __memoized[name] ||= instance_eval(&block)</pre></td> </tr> <tr class="uncovered"> <td><pre><a name="line25">25</a> end</pre></td> </tr> <tr class="uncovered"> <td><pre><a name="line26">26</a> end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line27">27</a> </pre></td> </tr> <tr class="inferred"> <td><pre><a name="line28">28</a> # Just like <tt>let()</tt>, except the block is invoked</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line29">29</a> # by an implicit <tt>before</tt> hook. This serves a dual</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line30">30</a> # purpose of setting up state and providing a memoized</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line31">31</a> # reference to that state.</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line32">32</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line33">33</a> # == Examples</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line34">34</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line35">35</a> # class Thing</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line36">36</a> # def self.count</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line37">37</a> # @count ||= 0</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line38">38</a> # end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line39">39</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line40">40</a> # def self.count=(val)</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line41">41</a> # @count += val</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line42">42</a> # end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line43">43</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line44">44</a> # def self.reset_count</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line45">45</a> # @count = 0</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line46">46</a> # end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line47">47</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line48">48</a> # def initialize</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line49">49</a> # self.class.count += 1</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line50">50</a> # end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line51">51</a> # end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line52">52</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line53">53</a> # describe Thing do</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line54">54</a> # after(:each) { Thing.reset_count }</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line55">55</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line56">56</a> # context "using let" do</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line57">57</a> # let(:thing) { Thing.new }</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line58">58</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line59">59</a> # it "is not invoked implicitly" do</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line60">60</a> # Thing.count.should == 0</pre></td> </tr> <tr class="inferred"> <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="inferred"> <td><pre><a name="line63">63</a> # it "can be invoked explicitly" do</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line64">64</a> # thing</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line65">65</a> # Thing.count.should == 1</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line66">66</a> # end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line67">67</a> # end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line68">68</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line69">69</a> # context "using let!" do</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line70">70</a> # let!(:thing) { Thing.new }</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line71">71</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line72">72</a> # it "is invoked implicitly" do</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line73">73</a> # Thing.count.should == 1</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line74">74</a> # end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line75">75</a> #</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line76">76</a> # it "returns memoized version on first invocation" do</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line77">77</a> # thing</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line78">78</a> # Thing.count.should == 1</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line79">79</a> # end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line80">80</a> # end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line81">81</a> # end</pre></td> </tr> <tr class="marked"> <td><pre><a name="line82">82</a> def let!(name, &block)</pre></td> </tr> <tr class="uncovered"> <td><pre><a name="line83">83</a> let(name, &block)</pre></td> </tr> <tr class="uncovered"> <td><pre><a name="line84">84</a> before { __send__(name) }</pre></td> </tr> <tr class="uncovered"> <td><pre><a name="line85">85</a> end</pre></td> </tr> <tr class="uncovered"> <td><pre><a name="line86">86</a> end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line87">87</a> </pre></td> </tr> <tr class="marked"> <td><pre><a name="line88">88</a> module InstanceMethods</pre></td> </tr> <tr class="marked"> <td><pre><a name="line89">89</a> def __memoized # :nodoc:</pre></td> </tr> <tr class="uncovered"> <td><pre><a name="line90">90</a> @__memoized ||= {}</pre></td> </tr> <tr class="uncovered"> <td><pre><a name="line91">91</a> end</pre></td> </tr> <tr class="uncovered"> <td><pre><a name="line92">92</a> end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line93">93</a> </pre></td> </tr> <tr class="marked"> <td><pre><a name="line94">94</a> def self.included(mod) # :nodoc:</pre></td> </tr> <tr class="marked"> <td><pre><a name="line95">95</a> mod.extend ClassMethods</pre></td> </tr> <tr class="marked"> <td><pre><a name="line96">96</a> mod.__send__ :include, InstanceMethods</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line97">97</a> end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line98">98</a> </pre></td> </tr> <tr class="inferred"> <td><pre><a name="line99">99</a> end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line100">100</a> end</pre></td> </tr> <tr class="inferred"> <td><pre><a name="line101">101</a> end</pre></td> </tr> </tbody> </table> <p>Generated on Fri Apr 22 17:22:42 -0700 2011 with <a href="http://github.com/relevance/rcov">rcov 0.9.8</a></p> </body>
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