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<a href='https://github.com/akkartik/mu/blob/main/linux/bootstrap/002test.cc'>https://github.com/akkartik/mu/blob/main/linux/bootstrap/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">//: $ ./bootstrap 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 "End Types")</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 "Globals")</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> Tests[] = <span class="Delimiter">{</span>
<span id="L16" class="LineNr"> 16 </span> <span class="PreProc">#include </span><span class="Constant">"test_list"</span> <span class="Comment">// 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 "End Globals")</span>
<span id="L20" class="LineNr"> 20 </span><span class="Normal">bool</span> <a href='002test.cc.html#L20'>Run_tests</a> = <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L21" class="LineNr"> 21 </span><span class="Normal">bool</span> <a href='002test.cc.html#L21'>Passed</a> = <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 "End Includes")</span>
<span id="L24" class="LineNr"> 24 </span><span class="PreProc">#define CHECK(X) \</span>
<span id="L25" class="LineNr"> 25 </span><span class="PreProc"> </span><span class="Normal">if</span><span class="PreProc"> (<a href='002test.cc.html#L21'>Passed</a> && !(X)) </span><span class="Delimiter">{</span><span class="PreProc"> \</span>
<span id="L26" class="LineNr"> 26 </span><span class="PreProc"> cerr << </span><span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span><span class="PreProc"> << __FUNCTION__ << </span><span class="Constant">"("</span><span class="PreProc"> << </span><span class="Constant">__FILE__</span><span class="PreProc"> << </span><span class="Constant">":"</span><span class="PreProc"> << </span><span class="Constant">__LINE__</span><span class="PreProc"> << </span><span class="Constant">"): "</span><span class="PreProc"> << #X << </span><span class="cSpecial">'\n'</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span id="L27" class="LineNr"> 27 </span><span class="PreProc"> <a href='002test.cc.html#L21'>Passed</a> = </span><span class="Constant">false</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span id="L28" class="LineNr"> 28 </span><span class="PreProc"> </span><span class="Identifier">return</span><span class="Delimiter">;</span><span class="PreProc"> </span><span class="Comment">/*</span><span class="Comment"> Currently we stop at the very first failure. </span><span class="Comment">*/</span><span class="PreProc"> \</span>
<span id="L29" class="LineNr"> 29 </span><span class="PreProc"> </span><span class="Delimiter">}</span>
<span id="L30" class="LineNr"> 30 </span>
<span id="L31" class="LineNr"> 31 </span><span class="PreProc">#define CHECK_EQ(X</span><span class="Delimiter">,</span><span class="PreProc"> Y) \</span>
<span id="L32" class="LineNr"> 32 </span><span class="PreProc"> </span><span class="Normal">if</span><span class="PreProc"> (<a href='002test.cc.html#L21'>Passed</a> && (X) != (Y)) </span><span class="Delimiter">{</span><span class="PreProc"> \</span>
<span id="L33" class="LineNr"> 33 </span><span class="PreProc"> cerr << </span><span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span><span class="PreProc"> << __FUNCTION__ << </span><span class="Constant">"("</span><span class="PreProc"> << </span><span class="Constant">__FILE__</span><span class="PreProc"> << </span><span class="Constant">":"</span><span class="PreProc"> << </span><span class="Constant">__LINE__</span><span class="PreProc"> << </span><span class="Constant">"): "</span><span class="PreProc"> << #X << </span><span class="Constant">" == "</span><span class="PreProc"> << #Y << </span><span class="cSpecial">'\n'</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span id="L34" class="LineNr"> 34 </span><span class="PreProc"> cerr << </span><span class="Constant">" got "</span><span class="PreProc"> << (X) << </span><span class="cSpecial">'\n'</span><span class="Delimiter">;</span><span class="PreProc"> </span><span class="Comment">/*</span><span class="Comment"> BEWARE: multiple eval </span><span class="Comment">*/</span><span class="PreProc"> \</span>
<span id="L35" class="LineNr"> 35 </span><span class="PreProc"> <a href='002test.cc.html#L21'>Passed</a> = </span><span class="Constant">false</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span id="L36" class="LineNr"> 36 </span><span class="PreProc"> </span><span class="Identifier">return</span><span class="Delimiter">;</span><span class="PreProc"> </span><span class="Comment">/*</span><span class="Comment"> Currently we stop at the very first failure. </span><span class="Comment">*/</span><span class="PreProc"> \</span>
<span id="L37" class="LineNr"> 37 </span><span class="PreProc"> </span><span class="Delimiter">}</span>
<span id="L38" class="LineNr"> 38 </span>
<span id="L39" class="LineNr"> 39 </span><span class="Delimiter">:(before "End Reset")</span>
<span id="L40" class="LineNr"> 40 </span><a href='002test.cc.html#L21'>Passed</a> = <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 "End Commandline Parsing")</span>
<span id="L43" class="LineNr"> 43 </span><span class="Normal">if</span> <span class="Delimiter">(</span>argc > <span class="Constant">1</span> && <a href='001help.cc.html#L98'>is_equal</a><span class="Delimiter">(</span>argv[<span class="Constant">1</span>]<span class="Delimiter">,</span> <span class="Constant">"test"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L44" class="LineNr"> 44 </span> <a href='002test.cc.html#L20'>Run_tests</a> = <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 "End Main")</span>
<span id="L48" class="LineNr"> 48 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='002test.cc.html#L20'>Run_tests</a><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>&t<span class="Delimiter">);</span>
<span id="L55" class="LineNr"> 55 </span> cerr << <span class="Constant">"C tests: "</span> << ctime<span class="Delimiter">(</span>&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 < <span class="Normal">sizeof</span><span class="Delimiter">(</span><a href='002test.cc.html#L15'>Tests</a><span class="Delimiter">)</span>/<span class="Normal">sizeof</span><span class="Delimiter">(</span>Tests[<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 << "running " << Test_names[i] << '\n';</span>
<span id="L58" class="LineNr"> 58 </span> <a href='002test.cc.html#L81'>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><a href='002test.cc.html#L21'>Passed</a><span class="Delimiter">)</span> cerr << <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 << <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 > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L65" class="LineNr"> 65 </span> cerr << num_failures << <span class="Constant">" failure"</span>
<span id="L66" class="LineNr"> 66 </span> << <span class="Delimiter">(</span>num_failures > <span class="Constant">1</span> ? <span class="Constant">"s"</span> : <span class="Constant">""</span><span class="Delimiter">)</span>
<span id="L67" class="LineNr"> 67 </span> << <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">:(after "End Main")</span>
<span id="L74" class="LineNr"> 74 </span><span class="Comment">//: Raise other unrecognized sub-commands as errors.</span>
<span id="L75" class="LineNr"> 75 </span><span class="Comment">//: We couldn't do this until now because we want `./bootstrap test` to always</span>
<span id="L76" class="LineNr"> 76 </span><span class="Comment">//: succeed, no matter how many layers are included in the build.</span>
<span id="L77" class="LineNr"> 77 </span>cerr << <span class="Constant">"nothing to do</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
<span id="L78" class="LineNr"> 78 </span><span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L79" class="LineNr"> 79 </span>
<span id="L80" class="LineNr"> 80 </span><span class="Delimiter">:(code)</span>
<span id="L81" class="LineNr"> 81 </span><span class="Normal">void</span> <a href='002test.cc.html#L81'>run_test</a><span class="Delimiter">(</span><span class="Normal">size_t</span> i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L82" class="LineNr"> 82 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i >= <span class="Normal">sizeof</span><span class="Delimiter">(</span><a href='002test.cc.html#L15'>Tests</a><span class="Delimiter">)</span>/<span class="Normal">sizeof</span><span class="Delimiter">(</span>Tests[<span class="Constant">0</span>]<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L83" class="LineNr"> 83 </span> cerr << <span class="Constant">"no test "</span> << i << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span id="L84" class="LineNr"> 84 </span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L85" class="LineNr"> 85 </span> <span class="Delimiter">}</span>
<span id="L86" class="LineNr"> 86 </span> <a href='000organization.cc.html#L150'>reset</a><span class="Delimiter">();</span>
<span id="L87" class="LineNr"> 87 </span> <span class="Comment">// End Test Setup</span>
<span id="L88" class="LineNr"> 88 </span> <span class="Delimiter">(</span>*Tests[i]<span class="Delimiter">)();</span>
<span id="L89" class="LineNr"> 89 </span> <span class="Comment">// End Test Teardown</span>
<span id="L90" class="LineNr"> 90 </span><span class="Delimiter">}</span>
<span id="L91" class="LineNr"> 91 </span>
<span id="L92" class="LineNr"> 92 </span><span class="Comment">//: Convenience: run a single test</span>
<span id="L93" class="LineNr"> 93 </span><span class="Delimiter">:(before "Globals")</span>
<span id="L94" class="LineNr"> 94 </span><span class="Comment">// Names for each element of the 'Tests' global, respectively.</span>
<span id="L95" class="LineNr"> 95 </span><span class="Normal">const</span> string Test_names[] = <span class="Delimiter">{</span>
<span id="L96" class="LineNr"> 96 </span> <span class="PreProc">#include </span><span class="Constant">"test_name_list"</span> <span class="Comment">// auto-generated; see 'build*' scripts</span>
<span id="L97" class="LineNr"> 97 </span><span class="Delimiter">};</span>
<span id="L98" class="LineNr"> 98 </span><span class="Delimiter">:(after "Test Runs")</span>
<span id="L99" class="LineNr"> 99 </span>string <a href='002test.cc.html#L99'>maybe_single_test_to_run</a> = argv[argc-<span class="Constant">1</span>]<span class="Delimiter">;</span>
<span id="L100" class="LineNr">100 </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 < <span class="Normal">sizeof</span><span class="Delimiter">(</span><a href='002test.cc.html#L15'>Tests</a><span class="Delimiter">)</span>/<span class="Normal">sizeof</span><span class="Delimiter">(</span>Tests[<span class="Constant">0</span>]<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L101" class="LineNr">101 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Test_names[i] == <a href='002test.cc.html#L99'>maybe_single_test_to_run</a><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L102" class="LineNr">102 </span> <a href='002test.cc.html#L81'>run_test</a><span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L103" class="LineNr">103 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='002test.cc.html#L21'>Passed</a><span class="Delimiter">)</span> cerr << <span class="Constant">".</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
<span id="L104" class="LineNr">104 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L105" class="LineNr">105 </span> <span class="Delimiter">}</span>
<span id="L106" class="LineNr">106 </span><span class="Delimiter">}</span>
<span id="L107" class="LineNr">107 </span>
<span id="L108" class="LineNr">108 </span><span class="Comment">//: A pending test that also serves to put our test harness through its paces.</span>
<span id="L109" class="LineNr">109 </span>
<span id="L110" class="LineNr">110 </span><span class="Delimiter">:(code)</span>
<span id="L111" class="LineNr">111 </span><span class="Normal">void</span> <a href='002test.cc.html#L111'>test_is_equal</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L112" class="LineNr">112 </span> <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span><a href='001help.cc.html#L98'>is_equal</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">,</span> <span class="Constant">""</span><span class="Delimiter">));</span>
<span id="L113" class="LineNr">113 </span> <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span>!is_equal<span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">,</span> <span class="Constant">"foo"</span><span class="Delimiter">));</span>
<span id="L114" class="LineNr">114 </span> <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span>!is_equal<span class="Delimiter">(</span><span class="Constant">"foo"</span><span class="Delimiter">,</span> <span class="Constant">""</span><span class="Delimiter">));</span>
<span id="L115" class="LineNr">115 </span> <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span>!is_equal<span class="Delimiter">(</span><span class="Constant">"f"</span><span class="Delimiter">,</span> <span class="Constant">"bar"</span><span class="Delimiter">));</span>
<span id="L116" class="LineNr">116 </span> <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span>!is_equal<span class="Delimiter">(</span><span class="Constant">"bar"</span><span class="Delimiter">,</span> <span class="Constant">"f"</span><span class="Delimiter">));</span>
<span id="L117" class="LineNr">117 </span> <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span>!is_equal<span class="Delimiter">(</span><span class="Constant">"bar"</span><span class="Delimiter">,</span> <span class="Constant">"ba"</span><span class="Delimiter">));</span>
<span id="L118" class="LineNr">118 </span> <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span>!is_equal<span class="Delimiter">(</span><span class="Constant">"ba"</span><span class="Delimiter">,</span> <span class="Constant">"bar"</span><span class="Delimiter">));</span>
<span id="L119" class="LineNr">119 </span> <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span><a href='001help.cc.html#L98'>is_equal</a><span class="Delimiter">(</span><span class="Constant">"bar"</span><span class="Delimiter">,</span> <span class="Constant">"bar"</span><span class="Delimiter">));</span>
<span id="L120" class="LineNr">120 </span><span class="Delimiter">}</span>
<span id="L121" class="LineNr">121 </span>
<span id="L122" class="LineNr">122 </span><span class="Delimiter">:(before "End Includes")</span>
<span id="L123" class="LineNr">123 </span><span class="PreProc">#include </span><span class="Constant"><stdlib.h></span>
</pre>
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