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<pre><a name="line-1"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Test</span><span class='hs-varop'>.</span><span class='hs-conid'>Framework</span><span class='hs-varop'>.</span><span class='hs-conid'>Utilities</span> <span class='hs-keyword'>where</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Arrow</span> <span class='hs-layout'>(</span><span class='hs-varid'>first</span><span class='hs-layout'>,</span> <span class='hs-varid'>second</span><span class='hs-layout'>)</span>
<a name="line-4"></a>
<a name="line-5"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Function</span> <span class='hs-layout'>(</span><span class='hs-varid'>on</span><span class='hs-layout'>)</span>
<a name="line-6"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span>
<a name="line-7"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Monoid</span>
<a name="line-8"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-layout'>(</span><span class='hs-varid'>intercalate</span><span class='hs-layout'>)</span>
<a name="line-9"></a>
<a name="line-10"></a>
<a name="line-11"></a><a name="K"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>K</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>K</span> <span class='hs-layout'>{</span> <span class='hs-varid'>unK</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</span> <span class='hs-layout'>}</span>
<a name="line-12"></a>
<a name="line-13"></a>
<a name="line-14"></a><a name="secondsToMicroseconds"></a><span class='hs-definition'>secondsToMicroseconds</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Num</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span>
<a name="line-15"></a><span class='hs-definition'>secondsToMicroseconds</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-num'>1000000</span><span class='hs-varop'>*</span><span class='hs-layout'>)</span>
<a name="line-16"></a>
<a name="line-17"></a><a name="microsecondsToPicoseconds"></a><span class='hs-definition'>microsecondsToPicoseconds</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Num</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span>
<a name="line-18"></a><span class='hs-definition'>microsecondsToPicoseconds</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-num'>1000000</span><span class='hs-varop'>*</span><span class='hs-layout'>)</span>
<a name="line-19"></a>
<a name="line-20"></a><a name="listToMaybeLast"></a><span class='hs-definition'>listToMaybeLast</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-varid'>a</span>
<a name="line-21"></a><span class='hs-definition'>listToMaybeLast</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>listToMaybe</span> <span class='hs-varop'>.</span> <span class='hs-varid'>reverse</span>
<a name="line-22"></a>
<a name="line-23"></a><a name="mappendBy"></a><span class='hs-definition'>mappendBy</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monoid</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>b</span>
<a name="line-24"></a><span class='hs-definition'>mappendBy</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mappend</span> <span class='hs-varop'>`on`</span> <span class='hs-varid'>f</span>
<a name="line-25"></a>
<a name="line-26"></a><a name="orElse"></a><span class='hs-definition'>orElse</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span>
<a name="line-27"></a><span class='hs-definition'>orElse</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>fromMaybe</span>
<a name="line-28"></a>
<a name="line-29"></a><a name="onLeft"></a><span class='hs-definition'>onLeft</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-30"></a><span class='hs-definition'>onLeft</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>first</span>
<a name="line-31"></a>
<a name="line-32"></a><a name="onRight"></a><span class='hs-definition'>onRight</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span>
<a name="line-33"></a><span class='hs-definition'>onRight</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>second</span>
<a name="line-34"></a>
<a name="line-35"></a><a name="unlinesConcise"></a><span class='hs-comment'>-- | Like 'unlines', but does not append a trailing newline if there</span>
<a name="line-36"></a><span class='hs-comment'>-- is at least one line. For example:</span>
<a name="line-37"></a><span class='hs-comment'>--</span>
<a name="line-38"></a><span class='hs-comment'>-- > unlinesConcise ["A", "B"] == "A\nB"</span>
<a name="line-39"></a><span class='hs-comment'>-- > unlinesConcise [] == ""</span>
<a name="line-40"></a><span class='hs-comment'>--</span>
<a name="line-41"></a><span class='hs-comment'>-- Whereas:</span>
<a name="line-42"></a><span class='hs-comment'>--</span>
<a name="line-43"></a><span class='hs-comment'>-- > unlines ["A", "B"] == "A\nB\n"</span>
<a name="line-44"></a><span class='hs-comment'>-- > unlines [] == ""</span>
<a name="line-45"></a><span class='hs-comment'>--</span>
<a name="line-46"></a><span class='hs-comment'>-- This is closer to the behaviour of 'unwords', which does not append</span>
<a name="line-47"></a><span class='hs-comment'>-- a trailing space.</span>
<a name="line-48"></a><span class='hs-definition'>unlinesConcise</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-49"></a><span class='hs-definition'>unlinesConcise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>intercalate</span> <span class='hs-str'>"\n"</span>
<a name="line-50"></a>
<a name="line-51"></a><a name="mapAccumLM"></a><span class='hs-definition'>mapAccumLM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-varid'>acc</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>acc</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>acc</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>acc</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>y</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-52"></a><span class='hs-definition'>mapAccumLM</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>acc</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>acc</span><span class='hs-layout'>,</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-53"></a><span class='hs-definition'>mapAccumLM</span> <span class='hs-varid'>f</span> <span class='hs-varid'>acc</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-54"></a> <span class='hs-layout'>(</span><span class='hs-varid'>acc'</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>f</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>x</span>
<a name="line-55"></a> <span class='hs-layout'>(</span><span class='hs-varid'>acc''</span><span class='hs-layout'>,</span> <span class='hs-varid'>ys</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapAccumLM</span> <span class='hs-varid'>f</span> <span class='hs-varid'>acc'</span> <span class='hs-varid'>xs</span>
<a name="line-56"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>acc''</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-conop'>:</span><span class='hs-varid'>ys</span><span class='hs-layout'>)</span>
<a name="line-57"></a>
<a name="line-58"></a><a name="padRight"></a><span class='hs-definition'>padRight</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-59"></a><span class='hs-definition'>padRight</span> <span class='hs-varid'>desired_length</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s</span> <span class='hs-varop'>++</span> <span class='hs-varid'>replicate</span> <span class='hs-layout'>(</span><span class='hs-varid'>desired_length</span> <span class='hs-comment'>-</span> <span class='hs-varid'>length</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-chr'>' '</span>
<a name="line-60"></a>
<a name="line-61"></a><a name="dropLast"></a><span class='hs-definition'>dropLast</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span>
<a name="line-62"></a><span class='hs-definition'>dropLast</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>.</span> <span class='hs-varid'>drop</span> <span class='hs-varid'>n</span> <span class='hs-varop'>.</span> <span class='hs-varid'>reverse</span>
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