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Kartik Agaram 08a0eed699 4891 
Couple more tweaks to html rendering:
a) SubX definitions no longer link redundantly to themselves. This long-standing
issue turns out to be tractable to solve for SubX files since the syntax
is so simple.
b) Fix links to SubX definitions in other directories. I forgot that I
have to always generate tags from the directory of the file being linkified.
c) Fix link colors. Before we lost all syntax highlighting for functions
and Globals. Now they maintain their colors, just add an underline.
2018-12-30 00:02:42 -08:00

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<a href='https://github.com/akkartik/mu/blob/master/002test.cc'>https://github.com/akkartik/mu/blob/master/002test.cc</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: A simple test harness. To create new tests, define functions starting with</span>
<span id="L2" class="LineNr"> 2 </span><span class="Comment">//: 'test_'. To run all tests so defined, run:</span>
<span id="L3" class="LineNr"> 3 </span><span class="Comment">//: $ ./mu test</span>
<span id="L4" class="LineNr"> 4 </span><span class="Comment">//:</span>
<span id="L5" class="LineNr"> 5 </span><span class="Comment">//: Every layer should include tests, and can reach into previous layers.</span>
<span id="L6" class="LineNr"> 6 </span><span class="Comment">//: However, it seems like a good idea never to reach into tests from previous</span>
<span id="L7" class="LineNr"> 7 </span><span class="Comment">//: layers. Every test should be a contract that always passes as originally</span>
<span id="L8" class="LineNr"> 8 </span><span class="Comment">//: written, regardless of any later layers. Avoid writing 'temporary' tests</span>
<span id="L9" class="LineNr"> 9 </span><span class="Comment">//: that are only meant to work until some layer.</span>
<span id="L10" class="LineNr"> 10 </span>
<span id="L11" class="LineNr"> 11 </span><span class="Delimiter">:(before &quot;End Types&quot;)</span>
<span id="L12" class="LineNr"> 12 </span><span class="Normal">typedef</span> <span class="Normal">void</span> <span class="Delimiter">(</span>*test_fn<span class="Delimiter">)(</span><span class="Normal">void</span><span class="Delimiter">);</span>
<span id="L13" class="LineNr"> 13 </span><span class="Delimiter">:(before &quot;Globals&quot;)</span>
<span id="L14" class="LineNr"> 14 </span><span class="Comment">// move a global ahead into types that we can't generate an extern declaration for</span>
<span id="L15" class="LineNr"> 15 </span><span class="Normal">const</span> <a href='002test.cc.html#L12'>test_fn</a> <span class="Special">Tests</span>[] = <span class="Delimiter">{</span>
<span id="L16" class="LineNr"> 16 </span> <span class="Comment">#include &quot;test_list&quot; // auto-generated; see 'build*' scripts</span>
<span id="L17" class="LineNr"> 17 </span><span class="Delimiter">};</span>
<span id="L18" class="LineNr"> 18 </span>
<span id="L19" class="LineNr"> 19 </span><span class="Delimiter">:(before &quot;End Globals&quot;)</span>
<span id="L20" class="LineNr"> 20 </span><span class="Normal">bool</span> <span class="Special">Run_tests</span> =<span class="Constant"> false</span><span class="Delimiter">;</span>
<span id="L21" class="LineNr"> 21 </span><span class="Normal">bool</span> <span class="Special">Passed</span> =<span class="Constant"> true</span><span class="Delimiter">;</span> <span class="Comment">// set this to false inside any test to indicate failure</span>
<span id="L22" class="LineNr"> 22 </span>
<span id="L23" class="LineNr"> 23 </span><span class="Delimiter">:(before &quot;End Includes&quot;)</span>
<span id="L24" class="LineNr"> 24 </span><span class="Comment">#define CHECK(X) \</span>
<span id="L25" class="LineNr"> 25 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Passed</span> &amp;&amp; !<span class="Delimiter">(</span><span class="Special">X</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> \
<span id="L26" class="LineNr"> 26 </span> cerr &lt;&lt; <span class="Constant">&quot;\nF - &quot;</span> &lt;&lt; __FUNCTION__ &lt;&lt; <span class="Constant">&quot;(&quot;</span> &lt;&lt; <span class="Constant">__FILE__</span> &lt;&lt; <span class="Constant">&quot;:&quot;</span> &lt;&lt; <span class="Constant">__LINE__</span> &lt;&lt; <span class="Constant">&quot;): &quot;</span> &lt;&lt; <span class="Comment">#X &lt;&lt; '\n'; \</span>
<span id="L27" class="LineNr"> 27 </span> <span class="Special">Passed</span> =<span class="Constant"> false</span><span class="Delimiter">;</span> \
<span id="L28" class="LineNr"> 28 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">/*</span><span class="Comment"> Currently we stop at the very first failure. </span><span class="Comment">*/</span> \
<span id="L29" class="LineNr"> 29 </span> <span class="Delimiter">}</span>
<span id="L30" class="LineNr"> 30 </span>
<span id="L31" class="LineNr"> 31 </span><span class="Comment">#define CHECK_EQ(X, Y) \</span>
<span id="L32" class="LineNr"> 32 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Passed</span> &amp;&amp; <span class="Delimiter">(</span><span class="Special">X</span><span class="Delimiter">)</span> != <span class="Delimiter">(</span><span class="Special">Y</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> \
<span id="L33" class="LineNr"> 33 </span> cerr &lt;&lt; <span class="Constant">&quot;\nF - &quot;</span> &lt;&lt; __FUNCTION__ &lt;&lt; <span class="Constant">&quot;(&quot;</span> &lt;&lt; <span class="Constant">__FILE__</span> &lt;&lt; <span class="Constant">&quot;:&quot;</span> &lt;&lt; <span class="Constant">__LINE__</span> &lt;&lt; <span class="Constant">&quot;): &quot;</span> &lt;&lt; <span class="Comment">#X &lt;&lt; &quot; == &quot; &lt;&lt; #Y &lt;&lt; '\n'; \</span>
<span id="L34" class="LineNr"> 34 </span> cerr &lt;&lt; <span class="Constant">&quot; got &quot;</span> &lt;&lt; <span class="Delimiter">(</span><span class="Special">X</span><span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> <span class="Comment">/*</span><span class="Comment"> BEWARE: multiple eval </span><span class="Comment">*/</span> \
<span id="L35" class="LineNr"> 35 </span> <span class="Special">Passed</span> =<span class="Constant"> false</span><span class="Delimiter">;</span> \
<span id="L36" class="LineNr"> 36 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">/*</span><span class="Comment"> Currently we stop at the very first failure. </span><span class="Comment">*/</span> \
<span id="L37" class="LineNr"> 37 </span> <span class="Delimiter">}</span>
<span id="L38" class="LineNr"> 38 </span>
<span id="L39" class="LineNr"> 39 </span><span class="Delimiter">:(before &quot;End Reset&quot;)</span>
<span id="L40" class="LineNr"> 40 </span><span class="Special">Passed</span> =<span class="Constant"> true</span><span class="Delimiter">;</span>
<span id="L41" class="LineNr"> 41 </span>
<span id="L42" class="LineNr"> 42 </span><span class="Delimiter">:(before &quot;End Commandline Parsing&quot;)</span>
<span id="L43" class="LineNr"> 43 </span><span class="Normal">if</span> <span class="Delimiter">(</span>argc &gt; <span class="Constant">1</span> &amp;&amp; <a href='001help.cc.html#L73'>is_equal</a><span class="Delimiter">(</span>argv[<span class="Constant">1</span>]<span class="Delimiter">,</span> <span class="Constant">&quot;test&quot;</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L44" class="LineNr"> 44 </span> <span class="Special">Run_tests</span> =<span class="Constant"> true</span><span class="Delimiter">;</span> --argc<span class="Delimiter">;</span> ++argv<span class="Delimiter">;</span> <span class="Comment">// shift 'test' out of commandline args</span>
<span id="L45" class="LineNr"> 45 </span><span class="Delimiter">}</span>
<span id="L46" class="LineNr"> 46 </span>
<span id="L47" class="LineNr"> 47 </span><span class="Delimiter">:(before &quot;End Main&quot;)</span>
<span id="L48" class="LineNr"> 48 </span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Run_tests</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L49" class="LineNr"> 49 </span> <span class="Comment">// Test Runs</span>
<span id="L50" class="LineNr"> 50 </span> <span class="Comment">// we run some tests and then exit; assume no state need be maintained afterward</span>
<span id="L51" class="LineNr"> 51 </span>
<span id="L52" class="LineNr"> 52 </span> <span class="Normal">long</span> num_failures = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L53" class="LineNr"> 53 </span> <span class="Comment">// End Test Run Initialization</span>
<span id="L54" class="LineNr"> 54 </span> <span class="Normal">time_t</span> t<span class="Delimiter">;</span> time<span class="Delimiter">(</span>&amp;t<span class="Delimiter">);</span>
<span id="L55" class="LineNr"> 55 </span> cerr &lt;&lt; <span class="Constant">&quot;C tests: &quot;</span> &lt;&lt; ctime<span class="Delimiter">(</span>&amp;t<span class="Delimiter">);</span>
<span id="L56" class="LineNr"> 56 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i=<span class="Constant">0</span><span class="Delimiter">;</span> i &lt; <span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Special">Tests</span><span class="Delimiter">)</span>/<span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Special">Tests</span>[<span class="Constant">0</span>]<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L57" class="LineNr"> 57 </span><span class="CommentedCode">//? cerr &lt;&lt; &quot;running &quot; &lt;&lt; Test_names[i] &lt;&lt; '\n';</span>
<span id="L58" class="LineNr"> 58 </span> <a href='002test.cc.html#L74'>run_test</a><span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L59" class="LineNr"> 59 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Passed</span><span class="Delimiter">)</span> cerr &lt;&lt; <span class="Constant">'.'</span><span class="Delimiter">;</span>
<span id="L60" class="LineNr"> 60 </span> <span class="Normal">else</span> ++num_failures<span class="Delimiter">;</span>
<span id="L61" class="LineNr"> 61 </span> <span class="Delimiter">}</span>
<span id="L62" class="LineNr"> 62 </span> cerr &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span id="L63" class="LineNr"> 63 </span> <span class="Comment">// End Tests</span>
<span id="L64" class="LineNr"> 64 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>num_failures &gt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L65" class="LineNr"> 65 </span> cerr &lt;&lt; num_failures &lt;&lt; <span class="Constant">&quot; failure&quot;</span>
<span id="L66" class="LineNr"> 66 </span> &lt;&lt; <span class="Delimiter">(</span>num_failures &gt; <span class="Constant">1</span> ? <span class="Constant">&quot;s&quot;</span> : <span class="Constant">&quot;&quot;</span><span class="Delimiter">)</span>
<span id="L67" class="LineNr"> 67 </span> &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span id="L68" class="LineNr"> 68 </span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L69" class="LineNr"> 69 </span> <span class="Delimiter">}</span>
<span id="L70" class="LineNr"> 70 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L71" class="LineNr"> 71 </span><span class="Delimiter">}</span>
<span id="L72" class="LineNr"> 72 </span>
<span id="L73" class="LineNr"> 73 </span><span class="Delimiter">:(code)</span>
<span id="L74" class="LineNr"> 74 </span><span class="Normal">void</span> <a href='002test.cc.html#L74'>run_test</a><span class="Delimiter">(</span><span class="Normal">size_t</span> i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L75" class="LineNr"> 75 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i &gt;= <span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Special">Tests</span><span class="Delimiter">)</span>/<span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Special">Tests</span>[<span class="Constant">0</span>]<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L76" class="LineNr"> 76 </span> cerr &lt;&lt; <span class="Constant">&quot;no test &quot;</span> &lt;&lt; i &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span id="L77" class="LineNr"> 77 </span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L78" class="LineNr"> 78 </span> <span class="Delimiter">}</span>
<span id="L79" class="LineNr"> 79 </span> <a href='000organization.cc.html#L134'>reset</a><span class="Delimiter">();</span>
<span id="L80" class="LineNr"> 80 </span> <span class="Comment">// End Test Setup</span>
<span id="L81" class="LineNr"> 81 </span> <span class="Delimiter">(</span>*<span class="Special">Tests</span>[i]<span class="Delimiter">)();</span>
<span id="L82" class="LineNr"> 82 </span> <span class="Comment">// End Test Teardown</span>
<span id="L83" class="LineNr"> 83 </span><span class="Delimiter">}</span>
<span id="L84" class="LineNr"> 84 </span>
<span id="L85" class="LineNr"> 85 </span><span class="Comment">//: Convenience: run a single test</span>
<span id="L86" class="LineNr"> 86 </span><span class="Delimiter">:(before &quot;Globals&quot;)</span>
<span id="L87" class="LineNr"> 87 </span><span class="Comment">// Names for each element of the 'Tests' global, respectively.</span>
<span id="L88" class="LineNr"> 88 </span><span class="Normal">const</span> string <span class="Special">Test_names</span>[] = <span class="Delimiter">{</span>
<span id="L89" class="LineNr"> 89 </span> <span class="Comment">#include &quot;test_name_list&quot; // auto-generated; see 'build*' scripts</span>
<span id="L90" class="LineNr"> 90 </span><span class="Delimiter">};</span>
<span id="L91" class="LineNr"> 91 </span><span class="Delimiter">:(after &quot;Test Runs&quot;)</span>
<span id="L92" class="LineNr"> 92 </span>string maybe_single_test_to_run = argv[argc-<span class="Constant">1</span>]<span class="Delimiter">;</span>
<span id="L93" class="LineNr"> 93 </span><span class="Normal">if</span> <span class="Delimiter">(</span>!starts_with<span class="Delimiter">(</span>maybe_single_test_to_run<span class="Delimiter">,</span> <span class="Constant">&quot;test_&quot;</span><span class="Delimiter">))</span>
<span id="L94" class="LineNr"> 94 </span> maybe_single_test_to_run<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">&quot;test_&quot;</span><span class="Delimiter">);</span>
<span id="L95" class="LineNr"> 95 </span><span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i=<span class="Constant">0</span><span class="Delimiter">;</span> i &lt; <span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Special">Tests</span><span class="Delimiter">)</span>/<span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Special">Tests</span>[<span class="Constant">0</span>]<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L96" class="LineNr"> 96 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Test_names</span>[i] == maybe_single_test_to_run<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L97" class="LineNr"> 97 </span> <a href='002test.cc.html#L74'>run_test</a><span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L98" class="LineNr"> 98 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Passed</span><span class="Delimiter">)</span> cerr &lt;&lt; <span class="Constant">&quot;.\n&quot;</span><span class="Delimiter">;</span>
<span id="L99" class="LineNr"> 99 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L100" class="LineNr">100 </span> <span class="Delimiter">}</span>
<span id="L101" class="LineNr">101 </span><span class="Delimiter">}</span>
<span id="L102" class="LineNr">102 </span>
<span id="L103" class="LineNr">103 </span><span class="Delimiter">:(before &quot;End Includes&quot;)</span>
<span id="L104" class="LineNr">104 </span><span class="Comment">#include &lt;stdlib.h&gt;</span>
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