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#!/bin/sh
set -e

set -v
rm -rf mu.cc core.mu mu_bin* *_list .build
rm -rf termbox/*.o termbox/libtermbox.a
rm -rf .until .quit
test $# -gt 0 && exit 0  # convenience: 'clean top-level' to leave subsidiary tools alone
rm -rf ../../tools/enumerate ../../tools/tangle ../../tools/*_list cleave/cleave cleave/cleave.dSYM ../../*/*.dSYM
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<span class="Comment">//: A simple test harness. To create new tests define functions starting with</span>
<span class="Comment">//: 'test_'. To run all tests so defined, run:</span>
<span class="Comment">//:   $ mu test</span>
<span class="Comment">//:</span>
<span class="Comment">//: So far it seems tasteful for layers to never ever reach back to modify</span>
<span class="Comment">//: previously-defined tests. Every test is a contract once written, and should</span>
<span class="Comment">//: pass as-is if it is included, regardless of how much later layers change</span>
<span class="Comment">//: the program. Avoid writing 'temporary' tests that only work with some</span>
<span class="Comment">//: subsets of the program.</span>

<span class="Delimiter">:(before &quot;End Types&quot;)</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 class="Delimiter">:(before &quot;Globals&quot;)</span>
<span class="Comment">// move a global ahead into types that we can't generate an extern declaration for</span>
<span class="Normal">const</span> test_fn Tests[] = <span class="Delimiter">{</span>
<span class="PreProc">  #include </span><span class="Constant">&quot;test_list&quot;</span>  <span class="Comment">// auto-generated; see makefile</span>
<span class="Delimiter">};</span>

<span class="Delimiter">:(before &quot;End Globals&quot;)</span>
<span class="Normal">bool</span> Run_tests = <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Normal">bool</span> Passed = <span class="Constant">true</span><span class="Delimiter">;</span>  <span class="Comment">// set this to false inside any test to indicate failure</span>
<span class="Normal">long</span> Num_failures = <span class="Constant">0</span><span class="Delimiter">;</span>

<span class="Delimiter">:(before &quot;End Includes&quot;)</span>
<span class="PreProc">#define CHECK(X) \</span>
<span class="PreProc">  </span><span class="Normal">if</span><span class="PreProc"> (Passed &amp;&amp; !(X)) </span><span class="Delimiter">{</span><span class="PreProc"> \</span>
<span class="PreProc">    ++Num_failures</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span class="PreProc">    cerr &lt;&lt; </span><span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">F - &quot;</span><span class="PreProc"> &lt;&lt; __FUNCTION__ &lt;&lt; </span><span class="Constant">&quot;(&quot;</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">__FILE__</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">&quot;:&quot;</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">__LINE__</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">&quot;): &quot;</span><span class="PreProc"> &lt;&lt; #X &lt;&lt; </span><span class="cSpecial">'\n'</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span class="PreProc">    Passed = </span><span class="Constant">false</span><span class="Delimiter">;</span><span class="PreProc"> \</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 class="PreProc">  </span><span class="Delimiter">}</span>

<span class="PreProc">#define CHECK_EQ(X</span><span class="Delimiter">,</span><span class="PreProc"> Y) \</span>
<span class="PreProc">  </span><span class="Normal">if</span><span class="PreProc"> (Passed &amp;&amp; (X) != (Y)) </span><span class="Delimiter">{</span><span class="PreProc"> \</span>
<span class="PreProc">    ++Num_failures</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span class="PreProc">    cerr &lt;&lt; </span><span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">F - &quot;</span><span class="PreProc"> &lt;&lt; __FUNCTION__ &lt;&lt; </span><span class="Constant">&quot;(&quot;</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">__FILE__</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">&quot;:&quot;</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">__LINE__</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">&quot;): &quot;</span><span class="PreProc"> &lt;&lt; #X &lt;&lt; </span><span class="Constant">&quot; == &quot;</span><span class="PreProc"> &lt;&lt; #Y &lt;&lt; </span><span class="cSpecial">'\n'</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span class="PreProc">    cerr &lt;&lt; </span><span class="Constant">&quot;  got &quot;</span><span class="PreProc"> &lt;&lt; (X) &lt;&lt; </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 class="PreProc">    Passed = </span><span class="Constant">false</span><span class="Delimiter">;</span><span class="PreProc"> \</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 class="PreProc">  </span><span class="Delimiter">}</span>

<span class="Delimiter">:(before &quot;End Setup&quot;)</span>
Passed = <span class="Constant">true</span><span class="Delimiter">;</span>

<span class="Delimiter">:(before &quot;End Commandline Parsing&quot;)</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>argc &gt; <span class="Constant">1</span> &amp;&amp; is_equal<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>
  Run_tests = <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 class="Delimiter">}</span>

<span class="Delimiter">:(before &quot;End Main&quot;)</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Run_tests<span class="Delimiter">)</span> <span class="Delimiter">{</span>
  <span class="Comment">// Test Runs</span>
  <span class="Comment">// we run some tests and then exit; assume no state need be maintained afterward</span>

  <span class="Comment">// End Test Run Initialization</span>
  <span class="Normal">time_t</span> t<span class="Delimiter">;</span> time<span class="Delimiter">(</span>&amp;t<span class="Delimiter">);</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 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>Tests<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 class="CommentedCode">//?     cerr &lt;&lt; i &lt;&lt; '\n';</span>
    run_test<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
  <span class="Delimiter">}</span>
  cerr &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
  <span class="Comment">// End Tests</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>
    cerr &lt;&lt; Num_failures &lt;&lt; <span class="Constant">&quot; failure&quot;</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>
         &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
    <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span>
  <span class="Delimiter">}</span>
  <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>

<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> run_test<span class="Delimiter">(</span><span class="Normal">size_t</span> i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
  <span class="Normal">if</span> <span class="Delimiter">(</span>i &gt;= <span class="Normal">sizeof</span><span class="Delimiter">(</span>Tests<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>
    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 class="Identifier">return</span><span class="Delimiter">;</span>
  <span class="Delimiter">}</span>
  setup<span class="Delimiter">();</span>
  <span class="Comment">// End Test Setup</span>
  <span class="Delimiter">(</span>*Tests[i]<span class="Delimiter">)();</span>
  <span class="Comment">// End Test Teardown</span>
  teardown<span class="Delimiter">();</span>
  <span class="Normal">if</span> <span class="Delimiter">(</span>Passed<span class="Delimiter">)</span> cerr &lt;&lt; <span class="Constant">'.'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>

<span class="Normal">bool</span> is_integer<span class="Delimiter">(</span><span class="Normal">const</span> string&amp; s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
  <span class="Identifier">return</span> s<span class="Delimiter">.</span>find_first_not_of<span class="Delimiter">(</span><span class="Constant">&quot;0123456789-&quot;</span><span class="Delimiter">)</span> == string::npos  <span class="Comment">// no other characters</span>
      &amp;&amp; s<span class="Delimiter">.</span>find_first_of<span class="Delimiter">(</span><span class="Constant">&quot;0123456789&quot;</span><span class="Delimiter">)</span> != string::npos  <span class="Comment">// at least one digit</span>
      &amp;&amp; s<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">'-'</span><span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">)</span> == string::npos<span class="Delimiter">;</span>  <span class="Comment">// '-' only at first position</span>
<span class="Delimiter">}</span>

<span class="Normal">int</span> to_integer<span class="Delimiter">(</span>string n<span class="Delimiter">)</span> <span class="Delimiter">{</span>
  <span class="Normal">char</span>* end = <span class="Constant">NULL</span><span class="Delimiter">;</span>
  <span class="Comment">// safe because string.c_str() is guaranteed to be null-terminated</span>
  <span class="Normal">int</span> result = strtoll<span class="Delimiter">(</span>n<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> &amp;end<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">any base</span><span class="Comment">*/</span><span class="Constant">0</span><span class="Delimiter">);</span>
  <span class="Normal">if</span> <span class="Delimiter">(</span>*end != <span class="cSpecial">'\0'</span><span class="Delimiter">)</span> cerr &lt;&lt; <span class="Constant">&quot;tried to convert &quot;</span> &lt;&lt; n &lt;&lt; <span class="Constant">&quot; to number</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
  assert<span class="Delimiter">(</span>*end == <span class="cSpecial">'\0'</span><span class="Delimiter">);</span>
  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>

<span class="Normal">void</span> test_is_integer<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  CHECK<span class="Delimiter">(</span>is_integer<span class="Delimiter">(</span><span class="Constant">&quot;1234&quot;</span><span class="Delimiter">));</span>
  CHECK<span class="Delimiter">(</span>is_integer<span class="Delimiter">(</span><span class="Constant">&quot;-1&quot;</span><span class="Delimiter">));</span>
  CHECK<span class="Delimiter">(</span>!is_integer<span class="Delimiter">(</span><span class="Constant">&quot;234.0&quot;</span><span class="Delimiter">));</span>
  CHECK<span class="Delimiter">(</span>is_integer<span class="Delimiter">(</span><span class="Constant">&quot;-567&quot;</span><span class="Delimiter">));</span>
  CHECK<span class="Delimiter">(</span>!is_integer<span class="Delimiter">(</span><span class="Constant">&quot;89-0&quot;</span><span class="Delimiter">));</span>
  CHECK<span class="Delimiter">(</span>!is_integer<span class="Delimiter">(</span><span class="Constant">&quot;-&quot;</span><span class="Delimiter">));</span>
  CHECK<span class="Delimiter">(</span>!is_integer<span class="Delimiter">(</span><span class="Constant">&quot;1e3&quot;</span><span class="Delimiter">));</span>  <span class="Comment">// not supported</span>
<span class="Delimiter">}</span>

<span class="Delimiter">:(before &quot;End Includes&quot;)</span>
<span class="PreProc">#include </span><span class="Constant">&lt;stdlib.h&gt;</span>
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