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<pre><a name="line-1"></a><span class='hs-comment'>-- | Text-based test controller for running HUnit tests and reporting</span>
<a name="line-2"></a><span class='hs-comment'>-- results as text, usually to a terminal.</span>
<a name="line-3"></a>
<a name="line-4"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Test</span><span class='hs-varop'>.</span><span class='hs-conid'>HUnit</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-5"></a><span class='hs-layout'>(</span>
<a name="line-6"></a> <span class='hs-conid'>PutText</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-7"></a> <span class='hs-varid'>putTextToHandle</span><span class='hs-layout'>,</span> <span class='hs-varid'>putTextToShowS</span><span class='hs-layout'>,</span>
<a name="line-8"></a> <span class='hs-varid'>runTestText</span><span class='hs-layout'>,</span>
<a name="line-9"></a> <span class='hs-varid'>showPath</span><span class='hs-layout'>,</span> <span class='hs-varid'>showCounts</span><span class='hs-layout'>,</span>
<a name="line-10"></a> <span class='hs-varid'>runTestTT</span>
<a name="line-11"></a><span class='hs-layout'>)</span>
<a name="line-12"></a><span class='hs-keyword'>where</span>
<a name="line-13"></a>
<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'>HUnit</span><span class='hs-varop'>.</span><span class='hs-conid'>Base</span>
<a name="line-15"></a>
<a name="line-16"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span><span class='hs-varid'>when</span><span class='hs-layout'>)</span>
<a name="line-17"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Handle</span><span class='hs-layout'>,</span> <span class='hs-varid'>stderr</span><span class='hs-layout'>,</span> <span class='hs-varid'>hPutStr</span><span class='hs-layout'>,</span> <span class='hs-varid'>hPutStrLn</span><span class='hs-layout'>)</span>
<a name="line-18"></a>
<a name="line-19"></a>
<a name="line-20"></a><span class='hs-comment'>-- | As the general text-based test controller ('runTestText') executes a</span>
<a name="line-21"></a><span class='hs-comment'>-- test, it reports each test case start, error, and failure by</span>
<a name="line-22"></a><span class='hs-comment'>-- constructing a string and passing it to the function embodied in a</span>
<a name="line-23"></a><span class='hs-comment'>-- 'PutText'. A report string is known as a \"line\", although it includes</span>
<a name="line-24"></a><span class='hs-comment'>-- no line terminator; the function in a 'PutText' is responsible for</span>
<a name="line-25"></a><span class='hs-comment'>-- terminating lines appropriately. Besides the line, the function</span>
<a name="line-26"></a><span class='hs-comment'>-- receives a flag indicating the intended \"persistence\" of the line:</span>
<a name="line-27"></a><span class='hs-comment'>-- 'True' indicates that the line should be part of the final overall</span>
<a name="line-28"></a><span class='hs-comment'>-- report; 'False' indicates that the line merely indicates progress of</span>
<a name="line-29"></a><span class='hs-comment'>-- the test execution. Each progress line shows the current values of</span>
<a name="line-30"></a><span class='hs-comment'>-- the cumulative test execution counts; a final, persistent line shows</span>
<a name="line-31"></a><span class='hs-comment'>-- the final count values.</span>
<a name="line-32"></a><span class='hs-comment'>--</span>
<a name="line-33"></a><span class='hs-comment'>-- The 'PutText' function is also passed, and returns, an arbitrary state</span>
<a name="line-34"></a><span class='hs-comment'>-- value (called 'st' here). The initial state value is given in the</span>
<a name="line-35"></a><span class='hs-comment'>-- 'PutText'; the final value is returned by 'runTestText'.</span>
<a name="line-36"></a>
<a name="line-37"></a><a name="PutText"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>PutText</span> <span class='hs-varid'>st</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PutText</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>st</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-varid'>st</span>
<a name="line-38"></a>
<a name="line-39"></a>
<a name="line-40"></a><span class='hs-comment'>-- | Two reporting schemes are defined here. @putTextToHandle@ writes</span>
<a name="line-41"></a><span class='hs-comment'>-- report lines to a given handle. 'putTextToShowS' accumulates</span>
<a name="line-42"></a><span class='hs-comment'>-- persistent lines for return as a whole by 'runTestText'.</span>
<a name="line-43"></a><span class='hs-comment'>--</span>
<a name="line-44"></a><span class='hs-comment'>-- @putTextToHandle@ writes persistent lines to the given handle,</span>
<a name="line-45"></a><span class='hs-comment'>-- following each by a newline character. In addition, if the given flag</span>
<a name="line-46"></a><span class='hs-comment'>-- is @True@, it writes progress lines to the handle as well. A progress</span>
<a name="line-47"></a><span class='hs-comment'>-- line is written with no line termination, so that it can be</span>
<a name="line-48"></a><span class='hs-comment'>-- overwritten by the next report line. As overwriting involves writing</span>
<a name="line-49"></a><span class='hs-comment'>-- carriage return and blank characters, its proper effect is usually</span>
<a name="line-50"></a><span class='hs-comment'>-- only obtained on terminal devices.</span>
<a name="line-51"></a>
<a name="line-52"></a><a name="putTextToHandle"></a><span class='hs-definition'>putTextToHandle</span>
<a name="line-53"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Handle</span>
<a name="line-54"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span> <span class='hs-comment'>-- ^ Write progress lines to handle? </span>
<a name="line-55"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PutText</span> <span class='hs-conid'>Int</span>
<a name="line-56"></a><span class='hs-definition'>putTextToHandle</span> <span class='hs-varid'>handle</span> <span class='hs-varid'>showProgress</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PutText</span> <span class='hs-varid'>put</span> <span class='hs-varid'>initCnt</span>
<a name="line-57"></a> <span class='hs-keyword'>where</span>
<a name="line-58"></a> <span class='hs-varid'>initCnt</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>showProgress</span> <span class='hs-keyword'>then</span> <span class='hs-num'>0</span> <span class='hs-keyword'>else</span> <span class='hs-comment'>-</span><span class='hs-num'>1</span>
<a name="line-59"></a> <span class='hs-varid'>put</span> <span class='hs-varid'>line</span> <span class='hs-varid'>pers</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>when</span> <span class='hs-varid'>pers</span> <span class='hs-layout'>(</span><span class='hs-varid'>hPutStrLn</span> <span class='hs-varid'>handle</span> <span class='hs-varid'>line</span><span class='hs-layout'>)</span><span class='hs-layout'>;</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-60"></a> <span class='hs-varid'>put</span> <span class='hs-varid'>line</span> <span class='hs-conid'>True</span> <span class='hs-varid'>cnt</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>hPutStrLn</span> <span class='hs-varid'>handle</span> <span class='hs-layout'>(</span><span class='hs-varid'>erase</span> <span class='hs-varid'>cnt</span> <span class='hs-varop'>++</span> <span class='hs-varid'>line</span><span class='hs-layout'>)</span><span class='hs-layout'>;</span> <span class='hs-varid'>return</span> <span class='hs-num'>0</span>
<a name="line-61"></a> <span class='hs-varid'>put</span> <span class='hs-varid'>line</span> <span class='hs-conid'>False</span> <span class='hs-varid'>cnt</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>hPutStr</span> <span class='hs-varid'>handle</span> <span class='hs-layout'>(</span><span class='hs-chr'>'\r'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>line</span><span class='hs-layout'>)</span><span class='hs-layout'>;</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>line</span><span class='hs-layout'>)</span>
<a name="line-62"></a> <span class='hs-comment'>-- The "erasing" strategy with a single '\r' relies on the fact that the</span>
<a name="line-63"></a> <span class='hs-comment'>-- lengths of successive summary lines are monotonically nondecreasing.</span>
<a name="line-64"></a> <span class='hs-varid'>erase</span> <span class='hs-varid'>cnt</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>cnt</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyword'>then</span> <span class='hs-str'>""</span> <span class='hs-keyword'>else</span> <span class='hs-str'>"\r"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>replicate</span> <span class='hs-varid'>cnt</span> <span class='hs-chr'>' '</span> <span class='hs-varop'>++</span> <span class='hs-str'>"\r"</span>
<a name="line-65"></a>
<a name="line-66"></a>
<a name="line-67"></a><span class='hs-comment'>-- | Accumulates persistent lines (dropping progess lines) for return by </span>
<a name="line-68"></a><span class='hs-comment'>-- 'runTestText'. The accumulated lines are represented by a </span>
<a name="line-69"></a><span class='hs-comment'>-- @'ShowS' ('String' -> 'String')@ function whose first argument is the</span>
<a name="line-70"></a><span class='hs-comment'>-- string to be appended to the accumulated report lines.</span>
<a name="line-71"></a>
<a name="line-72"></a><a name="putTextToShowS"></a><span class='hs-definition'>putTextToShowS</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PutText</span> <span class='hs-conid'>ShowS</span>
<a name="line-73"></a><span class='hs-definition'>putTextToShowS</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PutText</span> <span class='hs-varid'>put</span> <span class='hs-varid'>id</span>
<a name="line-74"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>put</span> <span class='hs-varid'>line</span> <span class='hs-varid'>pers</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-keyword'>if</span> <span class='hs-varid'>pers</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>f</span> <span class='hs-varid'>line</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span>
<a name="line-75"></a> <span class='hs-varid'>acc</span> <span class='hs-varid'>f</span> <span class='hs-varid'>line</span> <span class='hs-varid'>tail</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>line</span> <span class='hs-varop'>++</span> <span class='hs-chr'>'\n'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>tail</span><span class='hs-layout'>)</span>
<a name="line-76"></a>
<a name="line-77"></a>
<a name="line-78"></a><span class='hs-comment'>-- | Executes a test, processing each report line according to the given </span>
<a name="line-79"></a><span class='hs-comment'>-- reporting scheme. The reporting scheme's state is threaded through calls </span>
<a name="line-80"></a><span class='hs-comment'>-- to the reporting scheme's function and finally returned, along with final </span>
<a name="line-81"></a><span class='hs-comment'>-- count values.</span>
<a name="line-82"></a>
<a name="line-83"></a><a name="runTestText"></a><span class='hs-definition'>runTestText</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PutText</span> <span class='hs-varid'>st</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Test</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Counts</span><span class='hs-layout'>,</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span>
<a name="line-84"></a><span class='hs-definition'>runTestText</span> <span class='hs-layout'>(</span><span class='hs-conid'>PutText</span> <span class='hs-varid'>put</span> <span class='hs-varid'>us</span><span class='hs-layout'>)</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-85"></a> <span class='hs-layout'>(</span><span class='hs-varid'>counts</span><span class='hs-layout'>,</span> <span class='hs-varid'>us'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>performTest</span> <span class='hs-varid'>reportStart</span> <span class='hs-varid'>reportError</span> <span class='hs-varid'>reportFailure</span> <span class='hs-varid'>us</span> <span class='hs-varid'>t</span>
<a name="line-86"></a> <span class='hs-varid'>us''</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>put</span> <span class='hs-layout'>(</span><span class='hs-varid'>showCounts</span> <span class='hs-varid'>counts</span><span class='hs-layout'>)</span> <span class='hs-conid'>True</span> <span class='hs-varid'>us'</span>
<a name="line-87"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>counts</span><span class='hs-layout'>,</span> <span class='hs-varid'>us''</span><span class='hs-layout'>)</span>
<a name="line-88"></a> <span class='hs-keyword'>where</span>
<a name="line-89"></a> <span class='hs-varid'>reportStart</span> <span class='hs-varid'>ss</span> <span class='hs-varid'>us</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>put</span> <span class='hs-layout'>(</span><span class='hs-varid'>showCounts</span> <span class='hs-layout'>(</span><span class='hs-varid'>counts</span> <span class='hs-varid'>ss</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>False</span> <span class='hs-varid'>us</span>
<a name="line-90"></a> <span class='hs-varid'>reportError</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reportProblem</span> <span class='hs-str'>"Error:"</span> <span class='hs-str'>"Error in: "</span>
<a name="line-91"></a> <span class='hs-varid'>reportFailure</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reportProblem</span> <span class='hs-str'>"Failure:"</span> <span class='hs-str'>"Failure in: "</span>
<a name="line-92"></a> <span class='hs-varid'>reportProblem</span> <span class='hs-varid'>p0</span> <span class='hs-varid'>p1</span> <span class='hs-varid'>msg</span> <span class='hs-varid'>ss</span> <span class='hs-varid'>us</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>put</span> <span class='hs-varid'>line</span> <span class='hs-conid'>True</span> <span class='hs-varid'>us</span>
<a name="line-93"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>line</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"### "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>kind</span> <span class='hs-varop'>++</span> <span class='hs-varid'>path'</span> <span class='hs-varop'>++</span> <span class='hs-chr'>'\n'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>msg</span>
<a name="line-94"></a> <span class='hs-varid'>kind</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-varid'>path'</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>p0</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>p1</span>
<a name="line-95"></a> <span class='hs-varid'>path'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showPath</span> <span class='hs-layout'>(</span><span class='hs-varid'>path</span> <span class='hs-varid'>ss</span><span class='hs-layout'>)</span>
<a name="line-96"></a>
<a name="line-97"></a>
<a name="line-98"></a><span class='hs-comment'>-- | Converts test execution counts to a string.</span>
<a name="line-99"></a>
<a name="line-100"></a><a name="showCounts"></a><span class='hs-definition'>showCounts</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Counts</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-101"></a><span class='hs-definition'>showCounts</span> <span class='hs-conid'>Counts</span><span class='hs-layout'>{</span> <span class='hs-varid'>cases</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cases</span><span class='hs-layout'>,</span> <span class='hs-varid'>tried</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tried</span><span class='hs-layout'>,</span>
<a name="line-102"></a> <span class='hs-varid'>errors</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>errors</span><span class='hs-layout'>,</span> <span class='hs-varid'>failures</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>failures</span> <span class='hs-layout'>}</span> <span class='hs-keyglyph'>=</span>
<a name="line-103"></a> <span class='hs-str'>"Cases: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>cases</span> <span class='hs-varop'>++</span> <span class='hs-str'>" Tried: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>tried</span> <span class='hs-varop'>++</span>
<a name="line-104"></a> <span class='hs-str'>" Errors: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>errors</span> <span class='hs-varop'>++</span> <span class='hs-str'>" Failures: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>failures</span>
<a name="line-105"></a>
<a name="line-106"></a>
<a name="line-107"></a><span class='hs-comment'>-- | Converts a test case path to a string, separating adjacent elements by </span>
<a name="line-108"></a><span class='hs-comment'>-- the colon (\':\'). An element of the path is quoted (as with 'show') when</span>
<a name="line-109"></a><span class='hs-comment'>-- there is potential ambiguity.</span>
<a name="line-110"></a>
<a name="line-111"></a><a name="showPath"></a><span class='hs-definition'>showPath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Path</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-112"></a><span class='hs-definition'>showPath</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>""</span>
<a name="line-113"></a><span class='hs-definition'>showPath</span> <span class='hs-varid'>nodes</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldl1</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>showNode</span> <span class='hs-varid'>nodes</span><span class='hs-layout'>)</span>
<a name="line-114"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>f</span> <span class='hs-varid'>b</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>a</span> <span class='hs-varop'>++</span> <span class='hs-str'>":"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>b</span>
<a name="line-115"></a> <span class='hs-varid'>showNode</span> <span class='hs-layout'>(</span><span class='hs-conid'>ListItem</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>show</span> <span class='hs-varid'>n</span>
<a name="line-116"></a> <span class='hs-varid'>showNode</span> <span class='hs-layout'>(</span><span class='hs-conid'>Label</span> <span class='hs-varid'>label</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>safe</span> <span class='hs-varid'>label</span> <span class='hs-layout'>(</span><span class='hs-varid'>show</span> <span class='hs-varid'>label</span><span class='hs-layout'>)</span>
<a name="line-117"></a> <span class='hs-keyword'>safe</span> <span class='hs-varid'>s</span> <span class='hs-varid'>ss</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-chr'>':'</span> <span class='hs-varop'>`elem`</span> <span class='hs-varid'>s</span> <span class='hs-varop'>||</span> <span class='hs-str'>"\""</span> <span class='hs-varop'>++</span> <span class='hs-varid'>s</span> <span class='hs-varop'>++</span> <span class='hs-str'>"\""</span> <span class='hs-varop'>/=</span> <span class='hs-varid'>ss</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>ss</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>s</span>
<a name="line-118"></a>
<a name="line-119"></a>
<a name="line-120"></a><span class='hs-comment'>-- | Provides the \"standard\" text-based test controller. Reporting is made to</span>
<a name="line-121"></a><span class='hs-comment'>-- standard error, and progress reports are included. For possible </span>
<a name="line-122"></a><span class='hs-comment'>-- programmatic use, the final counts are returned.</span>
<a name="line-123"></a><span class='hs-comment'>--</span>
<a name="line-124"></a><span class='hs-comment'>-- The \"TT\" in the name suggests \"Text-based reporting to the Terminal\".</span>
<a name="line-125"></a>
<a name="line-126"></a><a name="runTestTT"></a><span class='hs-definition'>runTestTT</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Test</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Counts</span>
<a name="line-127"></a><span class='hs-definition'>runTestTT</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-layout'>(</span><span class='hs-varid'>counts</span><span class='hs-layout'>,</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>runTestText</span> <span class='hs-layout'>(</span><span class='hs-varid'>putTextToHandle</span> <span class='hs-varid'>stderr</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-varid'>t</span>
<a name="line-128"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>counts</span>
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