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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<!-- Generated by HsColour, http://code.haskell.org/~malcolm/hscolour/ -->
<title>Test/QuickCheck/Test.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-comment'>-- | The main test loop.</span>
<a name="line-2"></a><span class='hs-comment'>{-# LANGUAGE CPP #-}</span>
<a name="line-3"></a><span class='hs-cpp'>#ifndef NO_SAFE_HASKELL</span>
<a name="line-4"></a><span class='hs-comment'>{-# LANGUAGE Safe #-}</span>
<a name="line-5"></a><span class='hs-cpp'>#endif</span>
<a name="line-6"></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-7"></a>
<a name="line-8"></a><span class='hs-comment'>--------------------------------------------------------------------------</span>
<a name="line-9"></a><span class='hs-comment'>-- imports</span>
<a name="line-10"></a>
<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'>Gen</span>
<a name="line-12"></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'>theException</span><span class='hs-layout'>,</span> <span class='hs-varid'>labels</span> <span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-13"></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-14"></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-15"></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> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>labels</span><span class='hs-layout'>)</span>
<a name="line-16"></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'>State</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>S</span>
<a name="line-17"></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-18"></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'>Random</span>
<a name="line-19"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Random</span><span class='hs-layout'>(</span><span class='hs-varid'>split</span><span class='hs-layout'>)</span>
<a name="line-20"></a><span class='hs-cpp'>#if defined(MIN_VERSION_containers)</span>
<a name="line-21"></a><span class='hs-cpp'>#if MIN_VERSION_containers(0,5,0)</span>
<a name="line-22"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-conid'>Strict</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Map</span>
<a name="line-23"></a><span class='hs-cpp'>#else</span>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Map</span>
<a name="line-25"></a><span class='hs-cpp'>#endif</span>
<a name="line-26"></a><span class='hs-cpp'>#else</span>
<a name="line-27"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Map</span>
<a name="line-28"></a><span class='hs-cpp'>#endif</span>
<a name="line-29"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Set</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Set</span>
<a name="line-30"></a>
<a name="line-31"></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-32"></a>  <span class='hs-layout'>(</span> <span class='hs-varid'>isSpace</span>
<a name="line-33"></a>  <span class='hs-layout'>)</span>
<a name="line-34"></a>
<a name="line-35"></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-36"></a>  <span class='hs-layout'>(</span> <span class='hs-varid'>sort</span>
<a name="line-37"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>group</span>
<a name="line-38"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>groupBy</span>
<a name="line-39"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>intersperse</span>
<a name="line-40"></a>  <span class='hs-layout'>)</span>
<a name="line-41"></a><span class='hs-comment'>--------------------------------------------------------------------------</span>
<a name="line-42"></a><span class='hs-comment'>-- quickCheck</span>
<a name="line-43"></a>
<a name="line-44"></a><span class='hs-comment'>-- * Running tests</span>
<a name="line-45"></a>
<a name="line-46"></a><a name="Args"></a><span class='hs-comment'>-- | Args specifies arguments to the QuickCheck driver</span>
<a name="line-47"></a><a name="Args"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Args</span>
<a name="line-48"></a>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Args</span>
<a name="line-49"></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'>QCGen</span><span class='hs-layout'>,</span><span class='hs-conid'>Int</span><span class='hs-layout'>)</span>
<a name="line-50"></a>    <span class='hs-comment'>-- ^ Should we replay a previous test?</span>
<a name="line-51"></a>    <span class='hs-comment'>-- Note: saving a seed from one version of QuickCheck and</span>
<a name="line-52"></a>    <span class='hs-comment'>-- replaying it in another is not supported.</span>
<a name="line-53"></a>    <span class='hs-comment'>-- If you want to store a test case permanently you should save</span>
<a name="line-54"></a>    <span class='hs-comment'>-- the test case itself.</span>
<a name="line-55"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>maxSuccess</span>      <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-56"></a>    <span class='hs-comment'>-- ^ Maximum number of successful tests before succeeding</span>
<a name="line-57"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>maxDiscardRatio</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-58"></a>    <span class='hs-comment'>-- ^ Maximum number of discarded tests per successful test before giving up</span>
<a name="line-59"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>maxSize</span>         <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-60"></a>    <span class='hs-comment'>-- ^ Size to use for the biggest test cases</span>
<a name="line-61"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>chatty</span>          <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span>
<a name="line-62"></a>    <span class='hs-comment'>-- ^ Whether to print anything</span>
<a name="line-63"></a>  <span class='hs-layout'>}</span>
<a name="line-64"></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-65"></a>
<a name="line-66"></a><a name="Result"></a><span class='hs-comment'>-- | Result represents the test result</span>
<a name="line-67"></a><a name="Result"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Result</span>
<a name="line-68"></a>  <span class='hs-comment'>-- | A successful test run</span>
<a name="line-69"></a>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Success</span>
<a name="line-70"></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-71"></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-72"></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-73"></a>    <span class='hs-layout'>}</span>
<a name="line-74"></a>  <span class='hs-comment'>-- | Given up</span>
<a name="line-75"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-conid'>GaveUp</span>
<a name="line-76"></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-77"></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-78"></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-79"></a>    <span class='hs-layout'>}</span>
<a name="line-80"></a>  <span class='hs-comment'>-- | A failed test run</span>
<a name="line-81"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Failure</span>
<a name="line-82"></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-83"></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-84"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>numShrinkTries</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>               <span class='hs-comment'>-- ^ Number of unsuccessful shrinking steps performed</span>
<a name="line-85"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>numShrinkFinal</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>               <span class='hs-comment'>-- ^ Number of unsuccessful shrinking steps performed since last successful shrink</span>
<a name="line-86"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>usedSeed</span>       <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QCGen</span>             <span class='hs-comment'>-- ^ What seed was used</span>
<a name="line-87"></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-88"></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'>-- ^ Why did the property fail</span>
<a name="line-89"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>theException</span>   <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>AnException</span> <span class='hs-comment'>-- ^ The exception the property threw, if any</span>
<a name="line-90"></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-91"></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-92"></a>    <span class='hs-layout'>}</span>
<a name="line-93"></a>  <span class='hs-comment'>-- | A property that should have failed did not</span>
<a name="line-94"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-conid'>NoExpectedFailure</span>
<a name="line-95"></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-96"></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-97"></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-98"></a>    <span class='hs-layout'>}</span>
<a name="line-99"></a> <span class='hs-comment'>-- | The tests passed but a use of 'cover' had insufficient coverage</span>
<a name="line-100"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>InsufficientCoverage</span>
<a name="line-101"></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-102"></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-103"></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-104"></a>    <span class='hs-layout'>}</span>
<a name="line-105"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Show</span> <span class='hs-layout'>)</span>
<a name="line-106"></a>
<a name="line-107"></a><a name="isSuccess"></a><span class='hs-comment'>-- | Check if the test run result was a success</span>
<a name="line-108"></a><span class='hs-definition'>isSuccess</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-109"></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-110"></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-111"></a>
<a name="line-112"></a><a name="stdArgs"></a><span class='hs-comment'>-- | The default test arguments</span>
<a name="line-113"></a><span class='hs-definition'>stdArgs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Args</span>
<a name="line-114"></a><span class='hs-definition'>stdArgs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Args</span>
<a name="line-115"></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-116"></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-117"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>maxDiscardRatio</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>10</span>
<a name="line-118"></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-119"></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-120"></a><span class='hs-comment'>-- noShrinking flag?</span>
<a name="line-121"></a>  <span class='hs-layout'>}</span>
<a name="line-122"></a>
<a name="line-123"></a><a name="quickCheck"></a><span class='hs-comment'>-- | Tests a property and prints the results to 'stdout'.</span>
<a name="line-124"></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'>=&gt;</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-125"></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-126"></a>
<a name="line-127"></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-128"></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'>=&gt;</span> <span class='hs-conid'>Args</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-129"></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'>&gt;&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-130"></a>
<a name="line-131"></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-132"></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'>=&gt;</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-133"></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-134"></a>
<a name="line-135"></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-136"></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'>=&gt;</span> <span class='hs-conid'>Args</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-137"></a><span class='hs-definition'>quickCheckWithResult</span> <span class='hs-varid'>a</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'>chatty</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>withStdioTerminal</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>withNullTerminal</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>tm</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-138"></a>     <span class='hs-varid'>rnd</span> <span class='hs-keyglyph'>&lt;-</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-139"></a>              <span class='hs-conid'>Nothing</span>      <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>newQCGen</span>
<a name="line-140"></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'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-varid'>rnd</span>
<a name="line-141"></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-142"></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-143"></a>                 <span class='hs-layout'>,</span> <span class='hs-varid'>maxDiscardedTests</span>         <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maxDiscardRatio</span> <span class='hs-varid'>a</span> <span class='hs-varop'>*</span> <span class='hs-varid'>maxSuccess</span> <span class='hs-varid'>a</span>
<a name="line-144"></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-145"></a>                                                 <span class='hs-conid'>Nothing</span>    <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>computeSize'</span>
<a name="line-146"></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'>-&gt;</span> <span class='hs-varid'>computeSize'</span> <span class='hs-varop'>`at0`</span> <span class='hs-varid'>s</span>
<a name="line-147"></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-148"></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-149"></a>                 <span class='hs-layout'>,</span> <span class='hs-varid'>numRecentlyDiscardedTests</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span>
<a name="line-150"></a>                 <span class='hs-layout'>,</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>labels</span>                  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-151"></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-152"></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-153"></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-154"></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-155"></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-156"></a>                 <span class='hs-layout'>,</span> <span class='hs-varid'>numTotTryShrinks</span>          <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span>
<a name="line-157"></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'>unProperty</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><span class='hs-layout'>)</span>
<a name="line-158"></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-159"></a>          <span class='hs-comment'>-- e.g. with maxSuccess = 250, maxSize = 100, goes like this:</span>
<a name="line-160"></a>          <span class='hs-comment'>-- 0, 1, 2, ..., 99, 0, 1, 2, ..., 99, 0, 2, 4, ..., 98.</span>
<a name="line-161"></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'>&lt;=</span> <span class='hs-varid'>maxSuccess</span> <span class='hs-varid'>a</span> <span class='hs-varop'>||</span>
<a name="line-162"></a>            <span class='hs-varid'>n</span> <span class='hs-varop'>&gt;=</span> <span class='hs-varid'>maxSuccess</span> <span class='hs-varid'>a</span> <span class='hs-varop'>||</span>
<a name="line-163"></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-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-varop'>+</span> <span class='hs-varid'>d</span> <span class='hs-varop'>`div`</span> <span class='hs-num'>10</span><span class='hs-layout'>)</span> <span class='hs-varop'>`min`</span> <span class='hs-varid'>maxSize</span> <span class='hs-varid'>a</span>
<a name="line-164"></a>          <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span>
<a name="line-165"></a>            <span class='hs-layout'>(</span><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><span class='hs-layout'>)</span> <span class='hs-varop'>`min`</span> <span class='hs-varid'>maxSize</span> <span class='hs-varid'>a</span>
<a name="line-166"></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-167"></a>        <span class='hs-varid'>at0</span> <span class='hs-varid'>f</span> <span class='hs-varid'>s</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s</span>
<a name="line-168"></a>        <span class='hs-varid'>at0</span> <span class='hs-varid'>f</span> <span class='hs-varid'>s</span> <span class='hs-varid'>n</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varid'>n</span> <span class='hs-varid'>d</span>
<a name="line-169"></a>
<a name="line-170"></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-171"></a><span class='hs-comment'>-- This is just a convenience function that means the same as @'quickCheck' . 'verbose'@.</span>
<a name="line-172"></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'>=&gt;</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-173"></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-174"></a>
<a name="line-175"></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-176"></a><span class='hs-comment'>-- This is just a convenience function that combines 'quickCheckWith' and 'verbose'.</span>
<a name="line-177"></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'>=&gt;</span> <span class='hs-conid'>Args</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-178"></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-179"></a>
<a name="line-180"></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-181"></a><span class='hs-comment'>-- This is just a convenience function that combines 'quickCheckResult' and 'verbose'.</span>
<a name="line-182"></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'>=&gt;</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-183"></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-184"></a>
<a name="line-185"></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-186"></a><span class='hs-comment'>-- This is just a convenience function that combines 'quickCheckWithResult' and 'verbose'.</span>
<a name="line-187"></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'>=&gt;</span> <span class='hs-conid'>Args</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>prop</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-188"></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-189"></a>
<a name="line-190"></a><span class='hs-comment'>--------------------------------------------------------------------------</span>
<a name="line-191"></a><span class='hs-comment'>-- main test loop</span>
<a name="line-192"></a>
<a name="line-193"></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'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>QCGen</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Prop</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-194"></a><span class='hs-definition'>test</span> <span class='hs-varid'>st</span> <span class='hs-varid'>f</span>
<a name="line-195"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>numSuccessTests</span> <span class='hs-varid'>st</span>   <span class='hs-varop'>&gt;=</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-196"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>numDiscardedTests</span> <span class='hs-varid'>st</span> <span class='hs-varop'>&gt;=</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-197"></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-198"></a>
<a name="line-199"></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'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>QCGen</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Prop</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-200"></a><span class='hs-definition'>doneTesting</span> <span class='hs-varid'>st</span> <span class='hs-sel'>_f</span>
<a name="line-201"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>expectedFailure</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-202"></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-203"></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-204"></a>       <span class='hs-varop'>++</span> <span class='hs-str'>" Passed "</span>
<a name="line-205"></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-206"></a>       <span class='hs-varop'>++</span> <span class='hs-str'>" tests (expected failure)"</span>
<a name="line-207"></a>        <span class='hs-layout'>)</span>
<a name="line-208"></a>      <span class='hs-varid'>finished</span> <span class='hs-conid'>NoExpectedFailure</span>
<a name="line-209"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>insufficientCoverage</span> <span class='hs-varid'>st</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-210"></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-211"></a>        <span class='hs-layout'>(</span> <span class='hs-varid'>bold</span> <span class='hs-layout'>(</span><span class='hs-str'>"*** Insufficient coverage after "</span><span class='hs-layout'>)</span>
<a name="line-212"></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-213"></a>       <span class='hs-varop'>++</span> <span class='hs-str'>" tests"</span>
<a name="line-214"></a>        <span class='hs-layout'>)</span>
<a name="line-215"></a>      <span class='hs-varid'>finished</span> <span class='hs-conid'>InsufficientCoverage</span>
<a name="line-216"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-217"></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-218"></a>        <span class='hs-layout'>(</span> <span class='hs-str'>"+++ OK, passed "</span>
<a name="line-219"></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-220"></a>       <span class='hs-varop'>++</span> <span class='hs-str'>" tests"</span>
<a name="line-221"></a>        <span class='hs-layout'>)</span>
<a name="line-222"></a>      <span class='hs-varid'>finished</span> <span class='hs-conid'>Success</span>
<a name="line-223"></a>  <span class='hs-keyword'>where</span>
<a name="line-224"></a>    <span class='hs-varid'>finished</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-225"></a>      <span class='hs-varid'>success</span> <span class='hs-varid'>st</span>
<a name="line-226"></a>      <span class='hs-varid'>theOutput</span> <span class='hs-keyglyph'>&lt;-</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-227"></a>      <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</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'>summary</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-varid'>theOutput</span><span class='hs-layout'>)</span>
<a name="line-228"></a>
<a name="line-229"></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'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>QCGen</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Prop</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-230"></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-231"></a>  <span class='hs-keyword'>do</span> <span class='hs-comment'>-- CALLBACK gave_up?</span>
<a name="line-232"></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-233"></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-234"></a>      <span class='hs-varop'>++</span> <span class='hs-str'>" Passed only "</span>
<a name="line-235"></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-236"></a>      <span class='hs-varop'>++</span> <span class='hs-str'>" tests"</span>
<a name="line-237"></a>       <span class='hs-layout'>)</span>
<a name="line-238"></a>     <span class='hs-varid'>success</span> <span class='hs-varid'>st</span>
<a name="line-239"></a>     <span class='hs-varid'>theOutput</span> <span class='hs-keyglyph'>&lt;-</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-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-241"></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-242"></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-243"></a>                  <span class='hs-layout'>}</span>
<a name="line-244"></a>
<a name="line-245"></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'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>QCGen</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Prop</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Result</span>
<a name="line-246"></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-247"></a>  <span class='hs-keyword'>do</span> <span class='hs-comment'>-- CALLBACK before_test</span>
<a name="line-248"></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-249"></a>        <span class='hs-layout'>(</span> <span class='hs-str'>"("</span>
<a name="line-250"></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-251"></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-252"></a>                 <span class='hs-keyglyph'>|</span> <span class='hs-varid'>numDiscardedTests</span> <span class='hs-varid'>st</span> <span class='hs-varop'>&gt;</span> <span class='hs-num'>0</span>
<a name="line-253"></a>                 <span class='hs-keyglyph'>]</span>
<a name="line-254"></a>       <span class='hs-varop'>++</span> <span class='hs-str'>")"</span>
<a name="line-255"></a>        <span class='hs-layout'>)</span>
<a name="line-256"></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'>numRecentlyDiscardedTests</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-257"></a>     <span class='hs-conid'>MkRose</span> <span class='hs-varid'>res</span> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'>&lt;-</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-258"></a>     <span class='hs-varid'>res</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>callbackPostTest</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span>
<a name="line-259"></a>
<a name="line-260"></a>     <span class='hs-keyword'>let</span> <span class='hs-varid'>continue</span> <span class='hs-varid'>break</span> <span class='hs-varid'>st'</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>abort</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>break</span> <span class='hs-varid'>st'</span>
<a name="line-261"></a>                            <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>test</span> <span class='hs-varid'>st'</span>
<a name="line-262"></a>         <span class='hs-varid'>cons</span> <span class='hs-varid'>x</span> <span class='hs-varid'>xs</span>
<a name="line-263"></a>           <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Set</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>xs</span>
<a name="line-264"></a>           <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span>
<a name="line-265"></a>
<a name="line-266"></a>     <span class='hs-keyword'>case</span> <span class='hs-varid'>res</span> <span class='hs-keyword'>of</span>
<a name="line-267"></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'>-&gt;</span> <span class='hs-comment'>-- successful test</span>
<a name="line-268"></a>         <span class='hs-keyword'>do</span> <span class='hs-varid'>continue</span> <span class='hs-varid'>doneTesting</span>
<a name="line-269"></a>              <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-270"></a>                <span class='hs-layout'>,</span> <span class='hs-varid'>numRecentlyDiscardedTests</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span>
<a name="line-271"></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-272"></a>                <span class='hs-layout'>,</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>labels</span>                  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>unionWith</span> <span class='hs-varid'>max</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>labels</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-varid'>labels</span> <span class='hs-varid'>res</span><span class='hs-layout'>)</span>
<a name="line-273"></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-varop'>`cons`</span> <span class='hs-varid'>collected</span> <span class='hs-varid'>st</span>
<a name="line-274"></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-275"></a>                <span class='hs-layout'>}</span> <span class='hs-varid'>f</span>
<a name="line-276"></a>
<a name="line-277"></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'>-&gt;</span> <span class='hs-comment'>-- discarded test</span>
<a name="line-278"></a>         <span class='hs-keyword'>do</span> <span class='hs-varid'>continue</span> <span class='hs-varid'>giveUp</span>
<a name="line-279"></a>              <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-280"></a>                <span class='hs-layout'>,</span> <span class='hs-varid'>numRecentlyDiscardedTests</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>numRecentlyDiscardedTests</span> <span class='hs-varid'>st</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span>
<a name="line-281"></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-282"></a>                <span class='hs-layout'>,</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>labels</span>                  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>unionWith</span> <span class='hs-varid'>max</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>labels</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-varid'>labels</span> <span class='hs-varid'>res</span><span class='hs-layout'>)</span>
<a name="line-283"></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-284"></a>                <span class='hs-layout'>}</span> <span class='hs-varid'>f</span>
<a name="line-285"></a>
<a name="line-286"></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'>-&gt;</span> <span class='hs-comment'>-- failed test</span>
<a name="line-287"></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-288"></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-289"></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-290"></a>            <span class='hs-layout'>(</span><span class='hs-varid'>numShrinks</span><span class='hs-layout'>,</span> <span class='hs-varid'>totFailed</span><span class='hs-layout'>,</span> <span class='hs-varid'>lastFailed</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>&lt;-</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-291"></a>            <span class='hs-varid'>theOutput</span> <span class='hs-keyglyph'>&lt;-</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-292"></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-293"></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-294"></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-295"></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-296"></a>             <span class='hs-keyword'>else</span>
<a name="line-297"></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-298"></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-299"></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-300"></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-301"></a>                            <span class='hs-layout'>,</span> <span class='hs-varid'>numShrinkTries</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>totFailed</span>
<a name="line-302"></a>                            <span class='hs-layout'>,</span> <span class='hs-varid'>numShrinkFinal</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>lastFailed</span>
<a name="line-303"></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-304"></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-305"></a>                            <span class='hs-layout'>,</span> <span class='hs-varid'>theException</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-varid'>theException</span> <span class='hs-varid'>res</span>
<a name="line-306"></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-307"></a>                            <span class='hs-layout'>}</span>
<a name="line-308"></a> <span class='hs-keyword'>where</span>
<a name="line-309"></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-310"></a>
<a name="line-311"></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'>-&gt;</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-312"></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-313"></a>           <span class='hs-varop'>.</span> <span class='hs-varid'>sort</span>
<a name="line-314"></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'>-&gt;</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-315"></a>           <span class='hs-varop'>.</span> <span class='hs-varid'>group</span>
<a name="line-316"></a>           <span class='hs-varop'>.</span> <span class='hs-varid'>sort</span>
<a name="line-317"></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-layout'>(</span><span class='hs-conid'>Set</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-318"></a>             <span class='hs-keyglyph'>|</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>collected</span> <span class='hs-varid'>st</span>
<a name="line-319"></a>             <span class='hs-layout'>,</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-conid'>Set</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-320"></a>             <span class='hs-keyglyph'>]</span>
<a name="line-321"></a>
<a name="line-322"></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'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-323"></a><span class='hs-definition'>success</span> <span class='hs-varid'>st</span> <span class='hs-keyglyph'>=</span>
<a name="line-324"></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-325"></a>    <span class='hs-conid'>[]</span>    <span class='hs-keyglyph'>-&gt;</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-326"></a>    <span class='hs-keyglyph'>[</span><span class='hs-varid'>pt</span><span class='hs-keyglyph'>]</span>  <span class='hs-keyglyph'>-&gt;</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-327"></a>                  <span class='hs-layout'>(</span> <span class='hs-str'>" ("</span>
<a name="line-328"></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-329"></a>                 <span class='hs-varop'>++</span> <span class='hs-str'>")."</span>
<a name="line-330"></a>                  <span class='hs-layout'>)</span>
<a name="line-331"></a>    <span class='hs-varid'>cases</span> <span class='hs-keyglyph'>-&gt;</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-332"></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'>&lt;-</span> <span class='hs-varid'>cases</span> <span class='hs-keyglyph'>]</span>
<a name="line-333"></a> <span class='hs-keyword'>where</span>
<a name="line-334"></a>  <span class='hs-varid'>allLabels</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reverse</span>
<a name="line-335"></a>            <span class='hs-varop'>.</span> <span class='hs-varid'>sort</span>
<a name="line-336"></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'>-&gt;</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-337"></a>            <span class='hs-varop'>.</span> <span class='hs-varid'>group</span>
<a name="line-338"></a>            <span class='hs-varop'>.</span> <span class='hs-varid'>sort</span>
<a name="line-339"></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-340"></a>              <span class='hs-keyglyph'>|</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>collected</span> <span class='hs-varid'>st</span>
<a name="line-341"></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-varid'>t</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>Set</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varid'>s</span><span class='hs-layout'>,</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>t</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>labels</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-conid'>Just</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>]</span>
<a name="line-342"></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-343"></a>              <span class='hs-keyglyph'>]</span>
<a name="line-344"></a>
<a name="line-345"></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-layout'>(</span><span class='hs-varid'>labelPercentage</span> <span class='hs-varid'>l</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-str'>"% "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>l</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-346"></a>           <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>l</span><span class='hs-layout'>,</span> <span class='hs-varid'>reqP</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>labels</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-347"></a>           <span class='hs-layout'>,</span> <span class='hs-varid'>labelPercentage</span> <span class='hs-varid'>l</span> <span class='hs-varid'>st</span> <span class='hs-varop'>&lt;</span> <span class='hs-varid'>reqP</span>
<a name="line-348"></a>           <span class='hs-keyglyph'>]</span>
<a name="line-349"></a>
<a name="line-350"></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'>&lt;</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-351"></a>
<a name="line-352"></a><a name="labelPercentage"></a><span class='hs-definition'>labelPercentage</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span>
<a name="line-353"></a><span class='hs-definition'>labelPercentage</span> <span class='hs-varid'>l</span> <span class='hs-varid'>st</span> <span class='hs-keyglyph'>=</span>
<a name="line-354"></a>  <span class='hs-comment'>-- XXX in case of a disjunction, a label can occur several times,</span>
<a name="line-355"></a>  <span class='hs-comment'>-- need to think what to do there</span>
<a name="line-356"></a>  <span class='hs-layout'>(</span><span class='hs-num'>100</span> <span class='hs-varop'>*</span> <span class='hs-varid'>occur</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-357"></a>  <span class='hs-keyword'>where</span>
<a name="line-358"></a>    <span class='hs-varid'>occur</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>l'</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>l'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>concat</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-conid'>Set</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-layout'>(</span><span class='hs-varid'>collected</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>l</span> <span class='hs-varop'>==</span> <span class='hs-varid'>l'</span> <span class='hs-keyglyph'>]</span>
<a name="line-359"></a>
<a name="line-360"></a><a name="insufficientCoverage"></a><span class='hs-definition'>insufficientCoverage</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-361"></a><span class='hs-definition'>insufficientCoverage</span> <span class='hs-varid'>st</span> <span class='hs-keyglyph'>=</span>
<a name="line-362"></a>  <span class='hs-varid'>or</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>labelPercentage</span> <span class='hs-varid'>l</span> <span class='hs-varid'>st</span> <span class='hs-varop'>&lt;</span> <span class='hs-varid'>reqP</span> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>l</span><span class='hs-layout'>,</span> <span class='hs-varid'>reqP</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>labels</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>]</span>
<a name="line-363"></a>
<a name="line-364"></a><span class='hs-comment'>--------------------------------------------------------------------------</span>
<a name="line-365"></a><span class='hs-comment'>-- main shrinking loop</span>
<a name="line-366"></a>
<a name="line-367"></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'>-&gt;</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-&gt;</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'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span><span class='hs-layout'>,</span> <span class='hs-conid'>Int</span><span class='hs-layout'>,</span> <span class='hs-conid'>Int</span><span class='hs-layout'>)</span>
<a name="line-368"></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-369"></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'>res</span> <span class='hs-varid'>ts</span>
<a name="line-370"></a>
<a name="line-371"></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'>-&gt;</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-&gt;</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'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span><span class='hs-layout'>,</span> <span class='hs-conid'>Int</span><span class='hs-layout'>,</span> <span class='hs-conid'>Int</span><span class='hs-layout'>)</span>
<a name="line-372"></a><span class='hs-definition'>localMin</span> <span class='hs-varid'>st</span> <span class='hs-conid'>MkResult</span><span class='hs-layout'>{</span><span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-varid'>theException</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>}</span> <span class='hs-varid'>lastRes</span> <span class='hs-keyword'>_</span>
<a name="line-373"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isInterrupt</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>localMinFound</span> <span class='hs-varid'>st</span> <span class='hs-varid'>lastRes</span>
<a name="line-374"></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-varid'>ts</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-375"></a>  <span class='hs-varid'>r</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>tryEvaluateIO</span> <span class='hs-varop'>$</span>
<a name="line-376"></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-377"></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-varid'>oneLine</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><span class='hs-layout'>)</span>
<a name="line-378"></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-379"></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-380"></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-381"></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'>&gt;</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>]</span>
<a name="line-382"></a>              <span class='hs-varop'>++</span> <span class='hs-str'>" shrink"</span>
<a name="line-383"></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-384"></a>                  <span class='hs-varop'>&amp;&amp;</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-385"></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-386"></a>               <span class='hs-keyglyph'>|</span> <span class='hs-varid'>numSuccessShrinks</span> <span class='hs-varid'>st</span> <span class='hs-varop'>&gt;</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'>&gt;</span> <span class='hs-num'>0</span>
<a name="line-387"></a>               <span class='hs-keyglyph'>]</span>
<a name="line-388"></a>     <span class='hs-varop'>++</span> <span class='hs-str'>")..."</span>
<a name="line-389"></a>      <span class='hs-layout'>)</span>
<a name="line-390"></a>  <span class='hs-keyword'>case</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>of</span>
<a name="line-391"></a>    <span class='hs-conid'>Left</span> <span class='hs-varid'>err</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-392"></a>      <span class='hs-varid'>localMinFound</span> <span class='hs-varid'>st</span> <span class='hs-layout'>(</span><span class='hs-varid'>exception</span> <span class='hs-str'>"Exception while printing status message"</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-393"></a>    <span class='hs-conid'>Right</span> <span class='hs-conid'>()</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-394"></a>      <span class='hs-varid'>r</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>tryEvaluate</span> <span class='hs-varid'>ts</span>
<a name="line-395"></a>      <span class='hs-keyword'>case</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>of</span>
<a name="line-396"></a>        <span class='hs-conid'>Left</span> <span class='hs-varid'>err</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-397"></a>          <span class='hs-varid'>localMinFound</span> <span class='hs-varid'>st</span>
<a name="line-398"></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-399"></a>        <span class='hs-conid'>Right</span> <span class='hs-varid'>ts'</span> <span class='hs-keyglyph'>-&gt;</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-400"></a>
<a name="line-401"></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'>-&gt;</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-&gt;</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'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span><span class='hs-layout'>,</span> <span class='hs-conid'>Int</span><span class='hs-layout'>,</span> <span class='hs-conid'>Int</span><span class='hs-layout'>)</span>
<a name="line-402"></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-403"></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-404"></a>  <span class='hs-keyword'>do</span> <span class='hs-comment'>-- CALLBACK before_test</span>
<a name="line-405"></a>    <span class='hs-conid'>MkRose</span> <span class='hs-varid'>res'</span> <span class='hs-varid'>ts'</span> <span class='hs-keyglyph'>&lt;-</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-406"></a>    <span class='hs-varid'>res'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>callbackPostTest</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res'</span>
<a name="line-407"></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-408"></a>      <span class='hs-keyword'>then</span> <span class='hs-varid'>localMin</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>
<a name="line-409"></a>                        <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'>res</span> <span class='hs-varid'>ts'</span>
<a name="line-410"></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>
<a name="line-411"></a>                        <span class='hs-varid'>numTotTryShrinks</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>numTotTryShrinks</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'>res</span> <span class='hs-varid'>ts</span>
<a name="line-412"></a>
<a name="line-413"></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'>-&gt;</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span><span class='hs-layout'>,</span> <span class='hs-conid'>Int</span><span class='hs-layout'>,</span> <span class='hs-conid'>Int</span><span class='hs-layout'>)</span>
<a name="line-414"></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-415"></a>  <span class='hs-keyword'>do</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>report</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span>
<a name="line-416"></a>           <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><span class='hs-layout'>,</span>
<a name="line-417"></a>           <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-418"></a>                  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>numSuccessShrinks</span> <span class='hs-varid'>st</span> <span class='hs-varop'>&gt;</span> <span class='hs-num'>0</span>
<a name="line-419"></a>                  <span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-420"></a>           <span class='hs-str'>"): "</span>
<a name="line-421"></a>           <span class='hs-keyglyph'>]</span>
<a name="line-422"></a>     <span class='hs-keyword'>if</span> <span class='hs-varid'>isOneLine</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-423"></a>       <span class='hs-keyword'>then</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-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-varop'>++</span> <span class='hs-str'>" "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>report</span><span class='hs-layout'>)</span>
<a name="line-424"></a>       <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-425"></a>         <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'>report</span>
<a name="line-426"></a>         <span class='hs-varid'>sequence_</span>
<a name="line-427"></a>           <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'>msg</span>
<a name="line-428"></a>           <span class='hs-keyglyph'>|</span> <span class='hs-varid'>msg</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>lines</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-429"></a>           <span class='hs-keyglyph'>]</span>
<a name="line-430"></a>     <span class='hs-varid'>callbackPostFinalFailure</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span>
<a name="line-431"></a>     <span class='hs-comment'>-- NB no need to check if callbacks threw an exception because</span>
<a name="line-432"></a>     <span class='hs-comment'>-- we are about to return to the user anyway</span>
<a name="line-433"></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> <span class='hs-varid'>numTotTryShrinks</span> <span class='hs-varid'>st</span> <span class='hs-comment'>-</span> <span class='hs-varid'>numTryShrinks</span> <span class='hs-varid'>st</span><span class='hs-layout'>,</span> <span class='hs-varid'>numTryShrinks</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-434"></a>
<a name="line-435"></a><span class='hs-comment'>--------------------------------------------------------------------------</span>
<a name="line-436"></a><span class='hs-comment'>-- callbacks</span>
<a name="line-437"></a>
<a name="line-438"></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'>-&gt;</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span>
<a name="line-439"></a><span class='hs-definition'>callbackPostTest</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>protect</span> <span class='hs-layout'>(</span><span class='hs-varid'>exception</span> <span class='hs-str'>"Exception running callback"</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-440"></a>  <span class='hs-varid'>sequence_</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>f</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PostTest</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>callbacks</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>]</span>
<a name="line-441"></a>  <span class='hs-varid'>return</span> <span class='hs-varid'>res</span>
<a name="line-442"></a>
<a name="line-443"></a><a name="callbackPostFinalFailure"></a><span class='hs-definition'>callbackPostFinalFailure</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>State</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>P</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-444"></a><span class='hs-definition'>callbackPostFinalFailure</span> <span class='hs-varid'>st</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-445"></a>  <span class='hs-varid'>x</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>tryEvaluateIO</span> <span class='hs-varop'>$</span> <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'>&lt;-</span> <span class='hs-varid'>callbacks</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>]</span>
<a name="line-446"></a>  <span class='hs-keyword'>case</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span>
<a name="line-447"></a>    <span class='hs-conid'>Left</span> <span class='hs-varid'>err</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-448"></a>      <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'>"*** Exception running callback: "</span>
<a name="line-449"></a>      <span class='hs-varid'>tryEvaluateIO</span> <span class='hs-varop'>$</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-layout'>(</span><span class='hs-varid'>show</span> <span class='hs-varid'>err</span><span class='hs-layout'>)</span>
<a name="line-450"></a>      <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-451"></a>    <span class='hs-conid'>Right</span> <span class='hs-conid'>()</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-452"></a>
<a name="line-453"></a><span class='hs-comment'>--------------------------------------------------------------------------</span>
<a name="line-454"></a><span class='hs-comment'>-- the end.</span>
</pre></body>
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