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<pre><a name="line-1"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Test</span><span class='hs-varop'>.</span><span class='hs-conid'>QuickCheck</span><span class='hs-varop'>.</span><span class='hs-conid'>Test</span> <span class='hs-keyword'>where</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>--------------------------------------------------------------------------</span>
<a name="line-4"></a><span class='hs-comment'>-- imports</span>
<a name="line-5"></a>
<a name="line-6"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Test</span><span class='hs-varop'>.</span><span class='hs-conid'>QuickCheck</span><span class='hs-varop'>.</span><span class='hs-conid'>Gen</span>
<a name="line-7"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Test</span><span class='hs-varop'>.</span><span class='hs-conid'>QuickCheck</span><span class='hs-varop'>.</span><span class='hs-conid'>Property</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Result</span><span class='hs-layout'>(</span> <span class='hs-varid'>reason</span><span class='hs-layout'>,</span> <span class='hs-varid'>interrupted</span> <span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-8"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Test</span><span class='hs-varop'>.</span><span class='hs-conid'>QuickCheck</span><span class='hs-varop'>.</span><span class='hs-conid'>Property</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>P</span>
<a name="line-9"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Test</span><span class='hs-varop'>.</span><span class='hs-conid'>QuickCheck</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-10"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Test</span><span class='hs-varop'>.</span><span class='hs-conid'>QuickCheck</span><span class='hs-varop'>.</span><span class='hs-conid'>State</span>
<a name="line-11"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Test</span><span class='hs-varop'>.</span><span class='hs-conid'>QuickCheck</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span>
<a name="line-12"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>IORef</span>
<a name="line-13"></a>
<a name="line-14"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Random</span>
<a name="line-15"></a> <span class='hs-layout'>(</span> <span class='hs-varid'>split</span>
<a name="line-16"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>newStdGen</span>
<a name="line-17"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>StdGen</span>
<a name="line-18"></a> <span class='hs-layout'>)</span>
<a name="line-19"></a>
<a name="line-20"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span>
<a name="line-21"></a> <span class='hs-layout'>(</span> <span class='hs-varid'>isSpace</span>
<a name="line-22"></a> <span class='hs-layout'>)</span>
<a name="line-23"></a>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span>
<a name="line-25"></a> <span class='hs-layout'>(</span> <span class='hs-varid'>sort</span>
<a name="line-26"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>group</span>
<a name="line-27"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>groupBy</span>
<a name="line-28"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>intersperse</span>
<a name="line-29"></a> <span class='hs-layout'>)</span>
<a name="line-30"></a><span class='hs-comment'>--------------------------------------------------------------------------</span>
<a name="line-31"></a><span class='hs-comment'>-- quickCheck</span>
<a name="line-32"></a>
<a name="line-33"></a><span class='hs-comment'>-- * Running tests</span>
<a name="line-34"></a>
<a name="line-35"></a><a name="Args"></a><span class='hs-comment'>-- | Args specifies arguments to the QuickCheck driver</span>
<a name="line-36"></a><a name="Args"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Args</span>
<a name="line-37"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Args</span>
<a name="line-38"></a> <span class='hs-layout'>{</span> <span class='hs-varid'>replay</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>StdGen</span><span class='hs-layout'>,</span><span class='hs-conid'>Int</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- ^ should we replay a previous test?</span>
<a name="line-39"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>maxSuccess</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ maximum number of successful tests before succeeding</span>
<a name="line-40"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>maxDiscard</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ maximum number of discarded tests before giving up</span>
<a name="line-41"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>maxSize</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ size to use for the biggest test cases</span>
<a name="line-42"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>chatty</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-comment'>-- ^ whether to print anything</span>
<a name="line-43"></a> <span class='hs-layout'>}</span>
<a name="line-44"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Read</span> <span class='hs-layout'>)</span>
<a name="line-45"></a>
<a name="line-46"></a><a name="Result"></a><span class='hs-comment'>-- | Result represents the test result</span>
<a name="line-47"></a><a name="Result"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Result</span>
<a name="line-48"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Success</span> <span class='hs-comment'>-- a successful test run</span>
<a name="line-49"></a> <span class='hs-layout'>{</span> <span class='hs-varid'>numTests</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ number of successful tests performed</span>
<a name="line-50"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>labels</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span><span class='hs-conid'>Int</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- ^ labels and frequencies found during all tests</span>
<a name="line-51"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>output</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-comment'>-- ^ printed output</span>
<a name="line-52"></a> <span class='hs-layout'>}</span>
<a name="line-53"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>GaveUp</span> <span class='hs-comment'>-- given up</span>
<a name="line-54"></a> <span class='hs-layout'>{</span> <span class='hs-varid'>numTests</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ number of successful tests performed</span>
<a name="line-55"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>labels</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span><span class='hs-conid'>Int</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- ^ labels and frequencies found during all tests</span>
<a name="line-56"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>output</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-comment'>-- ^ printed output</span>
<a name="line-57"></a> <span class='hs-layout'>}</span>
<a name="line-58"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Failure</span> <span class='hs-comment'>-- failed test run</span>
<a name="line-59"></a> <span class='hs-layout'>{</span> <span class='hs-varid'>numTests</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ number of tests performed</span>
<a name="line-60"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>numShrinks</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ number of successful shrinking steps performed</span>
<a name="line-61"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>usedSeed</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StdGen</span> <span class='hs-comment'>-- ^ what seed was used</span>
<a name="line-62"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>usedSize</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ what was the test size</span>
<a name="line-63"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>reason</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-comment'>-- ^ what was the reason</span>
<a name="line-64"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>labels</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span><span class='hs-conid'>Int</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- ^ labels and frequencies found during all successful tests</span>
<a name="line-65"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>output</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-comment'>-- ^ printed output</span>
<a name="line-66"></a> <span class='hs-layout'>}</span>
<a name="line-67"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>NoExpectedFailure</span> <span class='hs-comment'>-- the expected failure did not happen</span>
<a name="line-68"></a> <span class='hs-layout'>{</span> <span class='hs-varid'>numTests</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ number of tests performed</span>
<a name="line-69"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>labels</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span><span class='hs-conid'>Int</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- ^ labels and frequencies found during all successful tests</span>
<a name="line-70"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>output</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-comment'>-- ^ printed output</span>
<a name="line-71"></a> <span class='hs-layout'>}</span>
<a name="line-72"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Read</span> <span class='hs-layout'>)</span>
<a name="line-73"></a>
<a name="line-74"></a><a name="isSuccess"></a><span class='hs-comment'>-- | isSuccess checks if the test run result was a success</span>
<a name="line-75"></a><span class='hs-definition'>isSuccess</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-76"></a><span class='hs-definition'>isSuccess</span> <span class='hs-conid'>Success</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-77"></a><span class='hs-definition'>isSuccess</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-78"></a>
<a name="line-79"></a><a name="stdArgs"></a><span class='hs-comment'>-- | stdArgs are the default test arguments used</span>
<a name="line-80"></a><span class='hs-definition'>stdArgs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Args</span>
<a name="line-81"></a><span class='hs-definition'>stdArgs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Args</span>
<a name="line-82"></a> <span class='hs-layout'>{</span> <span class='hs-varid'>replay</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-83"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>maxSuccess</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>100</span>
<a name="line-84"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>maxDiscard</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>500</span>
<a name="line-85"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>maxSize</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>100</span>
<a name="line-86"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>chatty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-87"></a><span class='hs-comment'>-- noShrinking flag?</span>
<a name="line-88"></a> <span class='hs-layout'>}</span>
<a name="line-89"></a>
<a name="line-90"></a><a name="quickCheck"></a><span class='hs-comment'>-- | Tests a property and prints the results to 'stdout'.</span>
<a name="line-91"></a><span class='hs-definition'>quickCheck</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Testable</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-92"></a><span class='hs-definition'>quickCheck</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>quickCheckWith</span> <span class='hs-varid'>stdArgs</span> <span class='hs-varid'>p</span>
<a name="line-93"></a>
<a name="line-94"></a><a name="quickCheckWith"></a><span class='hs-comment'>-- | Tests a property, using test arguments, and prints the results to 'stdout'.</span>
<a name="line-95"></a><span class='hs-definition'>quickCheckWith</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Testable</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Args</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-96"></a><span class='hs-definition'>quickCheckWith</span> <span class='hs-varid'>args</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>quickCheckWithResult</span> <span class='hs-varid'>args</span> <span class='hs-varid'>p</span> <span class='hs-varop'>>></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-97"></a>
<a name="line-98"></a><a name="quickCheckResult"></a><span class='hs-comment'>-- | Tests a property, produces a test result, and prints the results to 'stdout'.</span>
<a name="line-99"></a><span class='hs-definition'>quickCheckResult</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Testable</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-100"></a><span class='hs-definition'>quickCheckResult</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>quickCheckWithResult</span> <span class='hs-varid'>stdArgs</span> <span class='hs-varid'>p</span>
<a name="line-101"></a>
<a name="line-102"></a><a name="quickCheckWithResult"></a><span class='hs-comment'>-- | Tests a property, using test arguments, produces a test result, and prints the results to 'stdout'.</span>
<a name="line-103"></a><span class='hs-definition'>quickCheckWithResult</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Testable</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Args</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-104"></a><span class='hs-definition'>quickCheckWithResult</span> <span class='hs-varid'>a</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span>
<a name="line-105"></a> <span class='hs-keyword'>do</span> <span class='hs-varid'>tm</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>chatty</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>newStdioTerminal</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>newNullTerminal</span>
<a name="line-106"></a> <span class='hs-varid'>rnd</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>replay</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>of</span>
<a name="line-107"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>newStdGen</span>
<a name="line-108"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>rnd</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varid'>rnd</span>
<a name="line-109"></a> <span class='hs-varid'>test</span> <span class='hs-conid'>MkState</span><span class='hs-layout'>{</span> <span class='hs-varid'>terminal</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tm</span>
<a name="line-110"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>maxSuccessTests</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maxSuccess</span> <span class='hs-varid'>a</span>
<a name="line-111"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>maxDiscardedTests</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maxDiscard</span> <span class='hs-varid'>a</span>
<a name="line-112"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>computeSize</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>replay</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>of</span>
<a name="line-113"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>computeSize'</span>
<a name="line-114"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>s</span>
<a name="line-115"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>numSuccessTests</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span>
<a name="line-116"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>numDiscardedTests</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span>
<a name="line-117"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>collected</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-118"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>expectedFailure</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-119"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>randomSeed</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rnd</span>
<a name="line-120"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>numSuccessShrinks</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span>
<a name="line-121"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>numTryShrinks</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span>
<a name="line-122"></a> <span class='hs-layout'>}</span> <span class='hs-layout'>(</span><span class='hs-varid'>unGen</span> <span class='hs-layout'>(</span><span class='hs-varid'>property</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-123"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>computeSize'</span> <span class='hs-varid'>n</span> <span class='hs-varid'>d</span>
<a name="line-124"></a> <span class='hs-comment'>-- e.g. with maxSuccess = 250, maxSize = 100, goes like this:</span>
<a name="line-125"></a> <span class='hs-comment'>-- 0, 1, 2, ..., 99, 0, 1, 2, ..., 99, 0, 2, 4, ..., 98.</span>
<a name="line-126"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n</span> <span class='hs-varop'>`roundTo`</span> <span class='hs-varid'>maxSize</span> <span class='hs-varid'>a</span> <span class='hs-varop'>+</span> <span class='hs-varid'>maxSize</span> <span class='hs-varid'>a</span> <span class='hs-varop'><=</span> <span class='hs-varid'>maxSuccess</span> <span class='hs-varid'>a</span> <span class='hs-varop'>||</span>
<a name="line-127"></a> <span class='hs-varid'>n</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>maxSuccess</span> <span class='hs-varid'>a</span> <span class='hs-varop'>||</span>
<a name="line-128"></a> <span class='hs-varid'>maxSuccess</span> <span class='hs-varid'>a</span> <span class='hs-varop'>`mod`</span> <span class='hs-varid'>maxSize</span> <span class='hs-varid'>a</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>n</span> <span class='hs-varop'>`mod`</span> <span class='hs-varid'>maxSize</span> <span class='hs-varid'>a</span> <span class='hs-varop'>+</span> <span class='hs-varid'>d</span> <span class='hs-varop'>`div`</span> <span class='hs-num'>10</span>
<a name="line-129"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span>
<a name="line-130"></a> <span class='hs-layout'>(</span><span class='hs-varid'>n</span> <span class='hs-varop'>`mod`</span> <span class='hs-varid'>maxSize</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-varop'>*</span> <span class='hs-varid'>maxSize</span> <span class='hs-varid'>a</span> <span class='hs-varop'>`div`</span> <span class='hs-layout'>(</span><span class='hs-varid'>maxSuccess</span> <span class='hs-varid'>a</span> <span class='hs-varop'>`mod`</span> <span class='hs-varid'>maxSize</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-varid'>d</span> <span class='hs-varop'>`div`</span> <span class='hs-num'>10</span>
<a name="line-131"></a> <span class='hs-varid'>n</span> <span class='hs-varop'>`roundTo`</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span> <span class='hs-varop'>`div`</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-varop'>*</span> <span class='hs-varid'>m</span>
<a name="line-132"></a>
<a name="line-133"></a><a name="verboseCheck"></a><span class='hs-comment'>-- | Tests a property and prints the results and all test cases generated to 'stdout'.</span>
<a name="line-134"></a><span class='hs-comment'>-- This is just a convenience function that means the same as 'quickCheck' '.' 'verbose'.</span>
<a name="line-135"></a><span class='hs-definition'>verboseCheck</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Testable</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-136"></a><span class='hs-definition'>verboseCheck</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>quickCheck</span> <span class='hs-layout'>(</span><span class='hs-varid'>verbose</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-137"></a>
<a name="line-138"></a><a name="verboseCheckWith"></a><span class='hs-comment'>-- | Tests a property, using test arguments, and prints the results and all test cases generated to 'stdout'.</span>
<a name="line-139"></a><span class='hs-comment'>-- This is just a convenience function that combines 'quickCheckWith' and 'verbose'.</span>
<a name="line-140"></a><span class='hs-definition'>verboseCheckWith</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Testable</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Args</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-141"></a><span class='hs-definition'>verboseCheckWith</span> <span class='hs-varid'>args</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>quickCheckWith</span> <span class='hs-varid'>args</span> <span class='hs-layout'>(</span><span class='hs-varid'>verbose</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-142"></a>
<a name="line-143"></a><a name="verboseCheckResult"></a><span class='hs-comment'>-- | Tests a property, produces a test result, and prints the results and all test cases generated to 'stdout'.</span>
<a name="line-144"></a><span class='hs-comment'>-- This is just a convenience function that combines 'quickCheckResult' and 'verbose'.</span>
<a name="line-145"></a><span class='hs-definition'>verboseCheckResult</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Testable</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-146"></a><span class='hs-definition'>verboseCheckResult</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>quickCheckResult</span> <span class='hs-layout'>(</span><span class='hs-varid'>verbose</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-147"></a>
<a name="line-148"></a><a name="verboseCheckWithResult"></a><span class='hs-comment'>-- | Tests a property, using test arguments, produces a test result, and prints the results and all test cases generated to 'stdout'.</span>
<a name="line-149"></a><span class='hs-comment'>-- This is just a convenience function that combines 'quickCheckWithResult' and 'verbose'.</span>
<a name="line-150"></a><span class='hs-definition'>verboseCheckWithResult</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Testable</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Args</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-151"></a><span class='hs-definition'>verboseCheckWithResult</span> <span class='hs-varid'>a</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>quickCheckWithResult</span> <span class='hs-varid'>a</span> <span class='hs-layout'>(</span><span class='hs-varid'>verbose</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-152"></a>
<a name="line-153"></a><span class='hs-comment'>--------------------------------------------------------------------------</span>
<a name="line-154"></a><span class='hs-comment'>-- main test loop</span>
<a name="line-155"></a>
<a name="line-156"></a><a name="test"></a><span class='hs-definition'>test</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>StdGen</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Prop</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-157"></a><span class='hs-definition'>test</span> <span class='hs-varid'>st</span> <span class='hs-varid'>f</span>
<a name="line-158"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>maxSuccessTests</span> <span class='hs-varid'>st</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>doneTesting</span> <span class='hs-varid'>st</span> <span class='hs-varid'>f</span>
<a name="line-159"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>numDiscardedTests</span> <span class='hs-varid'>st</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>maxDiscardedTests</span> <span class='hs-varid'>st</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>giveUp</span> <span class='hs-varid'>st</span> <span class='hs-varid'>f</span>
<a name="line-160"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>runATest</span> <span class='hs-varid'>st</span> <span class='hs-varid'>f</span>
<a name="line-161"></a>
<a name="line-162"></a><a name="doneTesting"></a><span class='hs-definition'>doneTesting</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>StdGen</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Prop</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-163"></a><span class='hs-definition'>doneTesting</span> <span class='hs-varid'>st</span> <span class='hs-sel'>_f</span> <span class='hs-keyglyph'>=</span>
<a name="line-164"></a> <span class='hs-keyword'>do</span> <span class='hs-comment'>-- CALLBACK done_testing?</span>
<a name="line-165"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>expectedFailure</span> <span class='hs-varid'>st</span> <span class='hs-keyword'>then</span>
<a name="line-166"></a> <span class='hs-varid'>putPart</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-167"></a> <span class='hs-layout'>(</span> <span class='hs-str'>"+++ OK, passed "</span>
<a name="line-168"></a> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-169"></a> <span class='hs-varop'>++</span> <span class='hs-str'>" tests"</span>
<a name="line-170"></a> <span class='hs-layout'>)</span>
<a name="line-171"></a> <span class='hs-keyword'>else</span>
<a name="line-172"></a> <span class='hs-varid'>putPart</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-173"></a> <span class='hs-layout'>(</span> <span class='hs-varid'>bold</span> <span class='hs-layout'>(</span><span class='hs-str'>"*** Failed!"</span><span class='hs-layout'>)</span>
<a name="line-174"></a> <span class='hs-varop'>++</span> <span class='hs-str'>" Passed "</span>
<a name="line-175"></a> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-176"></a> <span class='hs-varop'>++</span> <span class='hs-str'>" tests (expected failure)"</span>
<a name="line-177"></a> <span class='hs-layout'>)</span>
<a name="line-178"></a> <span class='hs-varid'>success</span> <span class='hs-varid'>st</span>
<a name="line-179"></a> <span class='hs-varid'>theOutput</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>terminalOutput</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-180"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>expectedFailure</span> <span class='hs-varid'>st</span> <span class='hs-keyword'>then</span>
<a name="line-181"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>Success</span><span class='hs-layout'>{</span> <span class='hs-varid'>labels</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>summary</span> <span class='hs-varid'>st</span><span class='hs-layout'>,</span>
<a name="line-182"></a> <span class='hs-varid'>numTests</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span><span class='hs-layout'>,</span>
<a name="line-183"></a> <span class='hs-varid'>output</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>theOutput</span> <span class='hs-layout'>}</span>
<a name="line-184"></a> <span class='hs-keyword'>else</span>
<a name="line-185"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>NoExpectedFailure</span><span class='hs-layout'>{</span> <span class='hs-varid'>labels</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>summary</span> <span class='hs-varid'>st</span><span class='hs-layout'>,</span>
<a name="line-186"></a> <span class='hs-varid'>numTests</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span><span class='hs-layout'>,</span>
<a name="line-187"></a> <span class='hs-varid'>output</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>theOutput</span> <span class='hs-layout'>}</span>
<a name="line-188"></a>
<a name="line-189"></a><a name="giveUp"></a><span class='hs-definition'>giveUp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>StdGen</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Prop</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-190"></a><span class='hs-definition'>giveUp</span> <span class='hs-varid'>st</span> <span class='hs-sel'>_f</span> <span class='hs-keyglyph'>=</span>
<a name="line-191"></a> <span class='hs-keyword'>do</span> <span class='hs-comment'>-- CALLBACK gave_up?</span>
<a name="line-192"></a> <span class='hs-varid'>putPart</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-193"></a> <span class='hs-layout'>(</span> <span class='hs-varid'>bold</span> <span class='hs-layout'>(</span><span class='hs-str'>"*** Gave up!"</span><span class='hs-layout'>)</span>
<a name="line-194"></a> <span class='hs-varop'>++</span> <span class='hs-str'>" Passed only "</span>
<a name="line-195"></a> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-196"></a> <span class='hs-varop'>++</span> <span class='hs-str'>" tests"</span>
<a name="line-197"></a> <span class='hs-layout'>)</span>
<a name="line-198"></a> <span class='hs-varid'>success</span> <span class='hs-varid'>st</span>
<a name="line-199"></a> <span class='hs-varid'>theOutput</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>terminalOutput</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-200"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>GaveUp</span><span class='hs-layout'>{</span> <span class='hs-varid'>numTests</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span>
<a name="line-201"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>labels</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>summary</span> <span class='hs-varid'>st</span>
<a name="line-202"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>output</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>theOutput</span>
<a name="line-203"></a> <span class='hs-layout'>}</span>
<a name="line-204"></a>
<a name="line-205"></a><a name="runATest"></a><span class='hs-definition'>runATest</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>StdGen</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Prop</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-206"></a><span class='hs-definition'>runATest</span> <span class='hs-varid'>st</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span>
<a name="line-207"></a> <span class='hs-keyword'>do</span> <span class='hs-comment'>-- CALLBACK before_test</span>
<a name="line-208"></a> <span class='hs-varid'>putTemp</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-209"></a> <span class='hs-layout'>(</span> <span class='hs-str'>"("</span>
<a name="line-210"></a> <span class='hs-varop'>++</span> <span class='hs-varid'>number</span> <span class='hs-layout'>(</span><span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-str'>"test"</span>
<a name="line-211"></a> <span class='hs-varop'>++</span> <span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span> <span class='hs-str'>"; "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-varid'>numDiscardedTests</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-str'>" discarded"</span>
<a name="line-212"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>numDiscardedTests</span> <span class='hs-varid'>st</span> <span class='hs-varop'>></span> <span class='hs-num'>0</span>
<a name="line-213"></a> <span class='hs-keyglyph'>]</span>
<a name="line-214"></a> <span class='hs-varop'>++</span> <span class='hs-str'>")"</span>
<a name="line-215"></a> <span class='hs-layout'>)</span>
<a name="line-216"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>computeSize</span> <span class='hs-varid'>st</span> <span class='hs-layout'>(</span><span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>numDiscardedTests</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-217"></a> <span class='hs-conid'>MkRose</span> <span class='hs-varid'>res</span> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>protectRose</span> <span class='hs-layout'>(</span><span class='hs-varid'>reduceRose</span> <span class='hs-layout'>(</span><span class='hs-varid'>unProp</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>rnd1</span> <span class='hs-varid'>size</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-218"></a> <span class='hs-varid'>callbackPostTest</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span>
<a name="line-219"></a>
<a name="line-220"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>res</span> <span class='hs-keyword'>of</span>
<a name="line-221"></a> <span class='hs-conid'>MkResult</span><span class='hs-layout'>{</span><span class='hs-varid'>ok</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>True</span><span class='hs-layout'>,</span> <span class='hs-varid'>stamp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>stamp</span><span class='hs-layout'>,</span> <span class='hs-varid'>expect</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>expect</span><span class='hs-layout'>}</span> <span class='hs-keyglyph'>-></span> <span class='hs-comment'>-- successful test</span>
<a name="line-222"></a> <span class='hs-keyword'>do</span> <span class='hs-varid'>test</span> <span class='hs-varid'>st</span><span class='hs-layout'>{</span> <span class='hs-varid'>numSuccessTests</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span>
<a name="line-223"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>randomSeed</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rnd2</span>
<a name="line-224"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>collected</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>stamp</span> <span class='hs-conop'>:</span> <span class='hs-varid'>collected</span> <span class='hs-varid'>st</span>
<a name="line-225"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>expectedFailure</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>expect</span>
<a name="line-226"></a> <span class='hs-layout'>}</span> <span class='hs-varid'>f</span>
<a name="line-227"></a>
<a name="line-228"></a> <span class='hs-conid'>MkResult</span><span class='hs-layout'>{</span><span class='hs-varid'>ok</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span> <span class='hs-varid'>expect</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>expect</span><span class='hs-layout'>}</span> <span class='hs-keyglyph'>-></span> <span class='hs-comment'>-- discarded test</span>
<a name="line-229"></a> <span class='hs-keyword'>do</span> <span class='hs-varid'>test</span> <span class='hs-varid'>st</span><span class='hs-layout'>{</span> <span class='hs-varid'>numDiscardedTests</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>numDiscardedTests</span> <span class='hs-varid'>st</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span>
<a name="line-230"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>randomSeed</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rnd2</span>
<a name="line-231"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>expectedFailure</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>expect</span>
<a name="line-232"></a> <span class='hs-layout'>}</span> <span class='hs-varid'>f</span>
<a name="line-233"></a>
<a name="line-234"></a> <span class='hs-conid'>MkResult</span><span class='hs-layout'>{</span><span class='hs-varid'>ok</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>False</span><span class='hs-layout'>}</span> <span class='hs-keyglyph'>-></span> <span class='hs-comment'>-- failed test</span>
<a name="line-235"></a> <span class='hs-keyword'>do</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>expect</span> <span class='hs-varid'>res</span>
<a name="line-236"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>putPart</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>bold</span> <span class='hs-str'>"*** Failed! "</span><span class='hs-layout'>)</span>
<a name="line-237"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>putPart</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-str'>"+++ OK, failed as expected. "</span>
<a name="line-238"></a> <span class='hs-varid'>numShrinks</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>foundFailure</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-varid'>ts</span>
<a name="line-239"></a> <span class='hs-varid'>theOutput</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>terminalOutput</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-240"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>expect</span> <span class='hs-varid'>res</span><span class='hs-layout'>)</span> <span class='hs-keyword'>then</span>
<a name="line-241"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>Success</span><span class='hs-layout'>{</span> <span class='hs-varid'>labels</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>summary</span> <span class='hs-varid'>st</span><span class='hs-layout'>,</span>
<a name="line-242"></a> <span class='hs-varid'>numTests</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>,</span>
<a name="line-243"></a> <span class='hs-varid'>output</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>theOutput</span> <span class='hs-layout'>}</span>
<a name="line-244"></a> <span class='hs-keyword'>else</span>
<a name="line-245"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>Failure</span><span class='hs-layout'>{</span> <span class='hs-varid'>usedSeed</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>randomSeed</span> <span class='hs-varid'>st</span> <span class='hs-comment'>-- correct! (this will be split first)</span>
<a name="line-246"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>usedSize</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>size</span>
<a name="line-247"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>numTests</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span><span class='hs-varop'>+</span><span class='hs-num'>1</span>
<a name="line-248"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>numShrinks</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>numShrinks</span>
<a name="line-249"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>output</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>theOutput</span>
<a name="line-250"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>reason</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-varid'>reason</span> <span class='hs-varid'>res</span>
<a name="line-251"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>labels</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>summary</span> <span class='hs-varid'>st</span>
<a name="line-252"></a> <span class='hs-layout'>}</span>
<a name="line-253"></a> <span class='hs-keyword'>where</span>
<a name="line-254"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rnd1</span><span class='hs-layout'>,</span><span class='hs-varid'>rnd2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>split</span> <span class='hs-layout'>(</span><span class='hs-varid'>randomSeed</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-255"></a>
<a name="line-256"></a><a name="summary"></a><span class='hs-definition'>summary</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span><span class='hs-conid'>Int</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-257"></a><span class='hs-definition'>summary</span> <span class='hs-varid'>st</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reverse</span>
<a name="line-258"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>sort</span>
<a name="line-259"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>ss</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>head</span> <span class='hs-varid'>ss</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>ss</span> <span class='hs-varop'>*</span> <span class='hs-num'>100</span><span class='hs-layout'>)</span> <span class='hs-varop'>`div`</span> <span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-260"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>group</span>
<a name="line-261"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>sort</span>
<a name="line-262"></a> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>concat</span> <span class='hs-layout'>(</span><span class='hs-varid'>intersperse</span> <span class='hs-str'>", "</span> <span class='hs-varid'>s'</span><span class='hs-layout'>)</span>
<a name="line-263"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>collected</span> <span class='hs-varid'>st</span>
<a name="line-264"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>s'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>]</span>
<a name="line-265"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>null</span> <span class='hs-varid'>s'</span><span class='hs-layout'>)</span>
<a name="line-266"></a> <span class='hs-keyglyph'>]</span>
<a name="line-267"></a>
<a name="line-268"></a><a name="success"></a><span class='hs-definition'>success</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-269"></a><span class='hs-definition'>success</span> <span class='hs-varid'>st</span> <span class='hs-keyglyph'>=</span>
<a name="line-270"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>allLabels</span> <span class='hs-varop'>++</span> <span class='hs-varid'>covers</span> <span class='hs-keyword'>of</span>
<a name="line-271"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>putLine</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-str'>"."</span>
<a name="line-272"></a> <span class='hs-keyglyph'>[</span><span class='hs-varid'>pt</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>putLine</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-273"></a> <span class='hs-layout'>(</span> <span class='hs-str'>" ("</span>
<a name="line-274"></a> <span class='hs-varop'>++</span> <span class='hs-varid'>dropWhile</span> <span class='hs-varid'>isSpace</span> <span class='hs-varid'>pt</span>
<a name="line-275"></a> <span class='hs-varop'>++</span> <span class='hs-str'>")."</span>
<a name="line-276"></a> <span class='hs-layout'>)</span>
<a name="line-277"></a> <span class='hs-varid'>cases</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>putLine</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-str'>":"</span>
<a name="line-278"></a> <span class='hs-varid'>sequence_</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>putLine</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-varid'>pt</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>pt</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>cases</span> <span class='hs-keyglyph'>]</span>
<a name="line-279"></a> <span class='hs-keyword'>where</span>
<a name="line-280"></a> <span class='hs-varid'>allLabels</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reverse</span>
<a name="line-281"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>sort</span>
<a name="line-282"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>ss</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>showP</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>ss</span> <span class='hs-varop'>*</span> <span class='hs-num'>100</span><span class='hs-layout'>)</span> <span class='hs-varop'>`div`</span> <span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-varid'>head</span> <span class='hs-varid'>ss</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-283"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>group</span>
<a name="line-284"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>sort</span>
<a name="line-285"></a> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>concat</span> <span class='hs-layout'>(</span><span class='hs-varid'>intersperse</span> <span class='hs-str'>", "</span> <span class='hs-varid'>s'</span><span class='hs-layout'>)</span>
<a name="line-286"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>collected</span> <span class='hs-varid'>st</span>
<a name="line-287"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>s'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-layout'>,</span><span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>]</span>
<a name="line-288"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>null</span> <span class='hs-varid'>s'</span><span class='hs-layout'>)</span>
<a name="line-289"></a> <span class='hs-keyglyph'>]</span>
<a name="line-290"></a>
<a name="line-291"></a> <span class='hs-varid'>covers</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-str'>"only "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>occurP</span> <span class='hs-varop'>++</span> <span class='hs-str'>"% "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>fst</span> <span class='hs-layout'>(</span><span class='hs-varid'>head</span> <span class='hs-varid'>lps</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-str'>"; not "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>reqP</span> <span class='hs-varop'>++</span> <span class='hs-str'>"%"</span><span class='hs-layout'>)</span>
<a name="line-292"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>lps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>groupBy</span> <span class='hs-varid'>first</span>
<a name="line-293"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>sort</span>
<a name="line-294"></a> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>lp</span>
<a name="line-295"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>lps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>collected</span> <span class='hs-varid'>st</span>
<a name="line-296"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>lp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>maxi</span> <span class='hs-varid'>lps</span>
<a name="line-297"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>snd</span> <span class='hs-varid'>lp</span> <span class='hs-varop'>></span> <span class='hs-num'>0</span>
<a name="line-298"></a> <span class='hs-keyglyph'>]</span>
<a name="line-299"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>occurP</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-num'>100</span> <span class='hs-varop'>*</span> <span class='hs-varid'>length</span> <span class='hs-varid'>lps</span><span class='hs-layout'>)</span> <span class='hs-varop'>`div`</span> <span class='hs-varid'>maxSuccessTests</span> <span class='hs-varid'>st</span>
<a name="line-300"></a> <span class='hs-varid'>reqP</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maximum</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>snd</span> <span class='hs-varid'>lps</span><span class='hs-layout'>)</span>
<a name="line-301"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>occurP</span> <span class='hs-varop'><</span> <span class='hs-varid'>reqP</span>
<a name="line-302"></a> <span class='hs-keyglyph'>]</span>
<a name="line-303"></a>
<a name="line-304"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varop'>`first`</span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-varid'>y</span>
<a name="line-305"></a>
<a name="line-306"></a> <span class='hs-varid'>maxi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>lps</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fst</span> <span class='hs-layout'>(</span><span class='hs-varid'>head</span> <span class='hs-varid'>lps</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>maximum</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>snd</span> <span class='hs-varid'>lps</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-307"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>groupBy</span> <span class='hs-varid'>first</span>
<a name="line-308"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>sort</span>
<a name="line-309"></a>
<a name="line-310"></a> <span class='hs-varid'>showP</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-keyword'>if</span> <span class='hs-varid'>p</span> <span class='hs-varop'><</span> <span class='hs-num'>10</span> <span class='hs-keyword'>then</span> <span class='hs-str'>" "</span> <span class='hs-keyword'>else</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>p</span> <span class='hs-varop'>++</span> <span class='hs-str'>"% "</span>
<a name="line-311"></a>
<a name="line-312"></a><span class='hs-comment'>--------------------------------------------------------------------------</span>
<a name="line-313"></a><span class='hs-comment'>-- main shrinking loop</span>
<a name="line-314"></a>
<a name="line-315"></a><a name="foundFailure"></a><span class='hs-definition'>foundFailure</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Rose</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int</span>
<a name="line-316"></a><span class='hs-definition'>foundFailure</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'>=</span>
<a name="line-317"></a> <span class='hs-keyword'>do</span> <span class='hs-varid'>localMin</span> <span class='hs-varid'>st</span><span class='hs-layout'>{</span> <span class='hs-varid'>numTryShrinks</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span> <span class='hs-layout'>}</span> <span class='hs-varid'>res</span> <span class='hs-varid'>ts</span>
<a name="line-318"></a>
<a name="line-319"></a><a name="localMin"></a><span class='hs-definition'>localMin</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Rose</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int</span>
<a name="line-320"></a><span class='hs-definition'>localMin</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-varid'>interrupted</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>localMinFound</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span>
<a name="line-321"></a><span class='hs-definition'>localMin</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-322"></a> <span class='hs-varid'>putTemp</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-323"></a> <span class='hs-layout'>(</span> <span class='hs-varid'>short</span> <span class='hs-num'>26</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-varid'>reason</span> <span class='hs-varid'>res</span><span class='hs-layout'>)</span>
<a name="line-324"></a> <span class='hs-varop'>++</span> <span class='hs-str'>" (after "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>number</span> <span class='hs-layout'>(</span><span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-str'>"test"</span>
<a name="line-325"></a> <span class='hs-varop'>++</span> <span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span> <span class='hs-str'>" and "</span>
<a name="line-326"></a> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-varid'>numSuccessShrinks</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-327"></a> <span class='hs-varop'>++</span> <span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span> <span class='hs-str'>"."</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-varid'>numTryShrinks</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>numTryShrinks</span> <span class='hs-varid'>st</span> <span class='hs-varop'>></span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>]</span>
<a name="line-328"></a> <span class='hs-varop'>++</span> <span class='hs-str'>" shrink"</span>
<a name="line-329"></a> <span class='hs-varop'>++</span> <span class='hs-layout'>(</span><span class='hs-keyword'>if</span> <span class='hs-varid'>numSuccessShrinks</span> <span class='hs-varid'>st</span> <span class='hs-varop'>==</span> <span class='hs-num'>1</span>
<a name="line-330"></a> <span class='hs-varop'>&&</span> <span class='hs-varid'>numTryShrinks</span> <span class='hs-varid'>st</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span>
<a name="line-331"></a> <span class='hs-keyword'>then</span> <span class='hs-str'>""</span> <span class='hs-keyword'>else</span> <span class='hs-str'>"s"</span><span class='hs-layout'>)</span>
<a name="line-332"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>numSuccessShrinks</span> <span class='hs-varid'>st</span> <span class='hs-varop'>></span> <span class='hs-num'>0</span> <span class='hs-varop'>||</span> <span class='hs-varid'>numTryShrinks</span> <span class='hs-varid'>st</span> <span class='hs-varop'>></span> <span class='hs-num'>0</span>
<a name="line-333"></a> <span class='hs-keyglyph'>]</span>
<a name="line-334"></a> <span class='hs-varop'>++</span> <span class='hs-str'>")..."</span>
<a name="line-335"></a> <span class='hs-layout'>)</span>
<a name="line-336"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>tryEvaluate</span> <span class='hs-varid'>ts</span>
<a name="line-337"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>of</span>
<a name="line-338"></a> <span class='hs-conid'>Left</span> <span class='hs-varid'>err</span> <span class='hs-keyglyph'>-></span>
<a name="line-339"></a> <span class='hs-varid'>localMinFound</span> <span class='hs-varid'>st</span>
<a name="line-340"></a> <span class='hs-layout'>(</span><span class='hs-varid'>exception</span> <span class='hs-str'>"Exception while generating shrink-list"</span> <span class='hs-varid'>err</span><span class='hs-layout'>)</span> <span class='hs-layout'>{</span> <span class='hs-varid'>callbacks</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>callbacks</span> <span class='hs-varid'>res</span> <span class='hs-layout'>}</span>
<a name="line-341"></a> <span class='hs-conid'>Right</span> <span class='hs-varid'>ts'</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>localMin'</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-varid'>ts'</span>
<a name="line-342"></a>
<a name="line-343"></a><a name="localMin'"></a><span class='hs-definition'>localMin'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Rose</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int</span>
<a name="line-344"></a><span class='hs-definition'>localMin'</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>localMinFound</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span>
<a name="line-345"></a><span class='hs-definition'>localMin'</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-conop'>:</span><span class='hs-varid'>ts</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-346"></a> <span class='hs-keyword'>do</span> <span class='hs-comment'>-- CALLBACK before_test</span>
<a name="line-347"></a> <span class='hs-conid'>MkRose</span> <span class='hs-varid'>res'</span> <span class='hs-varid'>ts'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>protectRose</span> <span class='hs-layout'>(</span><span class='hs-varid'>reduceRose</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-348"></a> <span class='hs-varid'>callbackPostTest</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res'</span>
<a name="line-349"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>ok</span> <span class='hs-varid'>res'</span> <span class='hs-varop'>==</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>False</span>
<a name="line-350"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>foundFailure</span> <span class='hs-varid'>st</span><span class='hs-layout'>{</span> <span class='hs-varid'>numSuccessShrinks</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>numSuccessShrinks</span> <span class='hs-varid'>st</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span> <span class='hs-layout'>}</span> <span class='hs-varid'>res'</span> <span class='hs-varid'>ts'</span>
<a name="line-351"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>localMin</span> <span class='hs-varid'>st</span><span class='hs-layout'>{</span> <span class='hs-varid'>numTryShrinks</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>numTryShrinks</span> <span class='hs-varid'>st</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span> <span class='hs-layout'>}</span> <span class='hs-varid'>res</span> <span class='hs-varid'>ts</span>
<a name="line-352"></a>
<a name="line-353"></a><a name="localMinFound"></a><span class='hs-definition'>localMinFound</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int</span>
<a name="line-354"></a><span class='hs-definition'>localMinFound</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>=</span>
<a name="line-355"></a> <span class='hs-keyword'>do</span> <span class='hs-varid'>putLine</span> <span class='hs-layout'>(</span><span class='hs-varid'>terminal</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-356"></a> <span class='hs-layout'>(</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-varid'>reason</span> <span class='hs-varid'>res</span>
<a name="line-357"></a> <span class='hs-varop'>++</span> <span class='hs-str'>" (after "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>number</span> <span class='hs-layout'>(</span><span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-str'>"test"</span>
<a name="line-358"></a> <span class='hs-varop'>++</span> <span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span> <span class='hs-str'>" and "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>number</span> <span class='hs-layout'>(</span><span class='hs-varid'>numSuccessShrinks</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-str'>"shrink"</span>
<a name="line-359"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>numSuccessShrinks</span> <span class='hs-varid'>st</span> <span class='hs-varop'>></span> <span class='hs-num'>0</span>
<a name="line-360"></a> <span class='hs-keyglyph'>]</span>
<a name="line-361"></a> <span class='hs-varop'>++</span> <span class='hs-str'>"): "</span>
<a name="line-362"></a> <span class='hs-layout'>)</span>
<a name="line-363"></a> <span class='hs-varid'>callbackPostFinalFailure</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span>
<a name="line-364"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>numSuccessShrinks</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-365"></a>
<a name="line-366"></a><span class='hs-comment'>--------------------------------------------------------------------------</span>
<a name="line-367"></a><span class='hs-comment'>-- callbacks</span>
<a name="line-368"></a>
<a name="line-369"></a><a name="callbackPostTest"></a><span class='hs-definition'>callbackPostTest</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-370"></a><span class='hs-definition'>callbackPostTest</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>=</span>
<a name="line-371"></a> <span class='hs-varid'>sequence_</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>f</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PostTest</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>callbacks</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>]</span>
<a name="line-372"></a>
<a name="line-373"></a><a name="callbackPostFinalFailure"></a><span class='hs-definition'>callbackPostFinalFailure</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-374"></a><span class='hs-definition'>callbackPostFinalFailure</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>=</span>
<a name="line-375"></a> <span class='hs-varid'>sequence_</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>f</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PostFinalFailure</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>callbacks</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>]</span>
<a name="line-376"></a>
<a name="line-377"></a><span class='hs-comment'>--------------------------------------------------------------------------</span>
<a name="line-378"></a><span class='hs-comment'>-- the end.</span>
</pre></body>
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