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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">//: $ wart 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 "End Types")</span>
typedef void <span class="Delimiter">(</span>*test_fn<span class="Delimiter">)(</span>void<span class="Delimiter">);</span>
<span class="Delimiter">:(before "End Globals")</span>
const test_fn Tests[] = <span class="Delimiter">{</span>
<span class="PreProc"> #include </span><span class="Constant">"test_list"</span> <span class="Comment">// auto-generated; see makefile</span>
<span class="Delimiter">};</span>
bool Run_tests = <span class="Constant">false</span><span class="Delimiter">;</span>
bool Passed = <span class="Constant">true</span><span class="Delimiter">;</span> <span class="Comment">// set this to false inside any test to indicate failure</span>
long Num_failures = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="PreProc">#define CHECK(X) \</span>
<span class="PreProc"> </span>if<span class="PreProc"> (!(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 << </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 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>if<span class="PreProc"> ((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 << </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 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 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 "End Setup")</span>
Passed = <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Commandline Parsing")</span>
if <span class="Delimiter">(</span>argc > <span class="Constant">1</span> && is_equal<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>
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 "End Main")</span>
if <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>
time_t t<span class="Delimiter">;</span> time<span class="Delimiter">(</span>&t<span class="Delimiter">);</span>
cerr << <span class="Constant">"C tests: "</span> << ctime<span class="Delimiter">(</span>&t<span class="Delimiter">);</span>
for <span class="Delimiter">(</span>index_t i=<span class="Constant">0</span><span class="Delimiter">;</span> i < sizeof<span class="Delimiter">(</span>Tests<span class="Delimiter">)</span>/sizeof<span class="Delimiter">(</span>Tests[<span class="Constant">0</span>]<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
run_test<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Comment">// End Tests</span>
cerr << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>Num_failures > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
cerr << Num_failures << <span class="Constant">" failure"</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 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>
void run_test<span class="Delimiter">(</span>index_t i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>i >= sizeof<span class="Delimiter">(</span>Tests<span class="Delimiter">)</span>/sizeof<span class="Delimiter">(</span>Tests[<span class="Constant">0</span>]<span class="Delimiter">))</span> <span class="Delimiter">{</span>
cerr << <span class="Constant">"no test "</span> << i << <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>
teardown<span class="Delimiter">();</span>
if <span class="Delimiter">(</span>Passed<span class="Delimiter">)</span> cerr << <span class="Constant">"."</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
bool is_number<span class="Delimiter">(</span>const string& 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">"0123456789-."</span><span class="Delimiter">)</span> == string::npos<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
long long int to_number<span class="Delimiter">(</span>string n<span class="Delimiter">)</span> <span class="Delimiter">{</span>
char* end = <span class="Constant">NULL</span><span class="Delimiter">;</span>
long long int result = strtoll<span class="Delimiter">(</span>n<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> &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>
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="Delimiter">:(before "End Includes")</span>
<span class="PreProc">#include</span><span class="Constant"><cstdlib></span>
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