https://wiki.haskell.org/index.php?title=HUnit_1.0_User%27s_Guide&feed=atom&action=historyHUnit 1.0 User's Guide - Revision history2024-03-19T01:23:51ZRevision history for this page on the wikiMediaWiki 1.35.5https://wiki.haskell.org/index.php?title=HUnit_1.0_User%27s_Guide&diff=63308&oldid=prevManiaphobic: I converted the Design Patterns citation to MLA format2020-05-15T03:11:09Z<p>I converted the Design Patterns citation to MLA format</p>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>As soon as you have more than one test, you'll want to name them to tell them apart. As soon as you have more than several tests, you'll want to group them to process them more easily. So, naming and grouping are the two keys to managing collections of tests.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>As soon as you have more than one test, you'll want to name them to tell them apart. As soon as you have more than several tests, you'll want to group them to process them more easily. So, naming and grouping are the two keys to managing collections of tests.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>In tune with the "composite" design pattern<ref>Gamma, E., et al.<del class="diffchange diffchange-inline">,</del> ''Design Patterns: Elements of Reusable Object-Oriented Software'', Addison-Wesley, <del class="diffchange diffchange-inline">Reading,</del> <del class="diffchange diffchange-inline">MA,</del> <del class="diffchange diffchange-inline">1995</del>.</ref>, a ''test'' is defined as a package of test cases. Concretely, a test is either a single test case, a group of tests, or either of the first two identified by a label.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>In tune with the "composite" design pattern<ref>Gamma, E., et al. ''Design Patterns: Elements of Reusable Object-Oriented Software''<ins class="diffchange diffchange-inline">. Reading</ins>,<ins class="diffchange diffchange-inline"> MA:</ins> Addison-Wesley, <ins class="diffchange diffchange-inline">1994.</ins> <ins class="diffchange diffchange-inline">ISBN</ins> <ins class="diffchange diffchange-inline">9780201633610</ins>.</ref>, a ''test'' is defined as a package of test cases. Concretely, a test is either a single test case, a group of tests, or either of the first two identified by a label.</div></td>
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</table>Maniaphobichttps://wiki.haskell.org/index.php?title=HUnit_1.0_User%27s_Guide&diff=63307&oldid=prevManiaphobic: I replaced the manually-maintained "Design Patterns" reference with a <ref> tag. I had to sacrifice the "classic book..." comment because <ref> doesn't support it. We could with the current version of the "Cite" extension.2020-05-15T02:55:20Z<p>I replaced the manually-maintained "Design Patterns" reference with a <ref> tag. I had to sacrifice the "classic book..." comment because <ref> doesn't support it. We could with the current version of the "Cite" extension.</p>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>As soon as you have more than one test, you'll want to name them to tell them apart. As soon as you have more than several tests, you'll want to group them to process them more easily. So, naming and grouping are the two keys to managing collections of tests.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>As soon as you have more than one test, you'll want to name them to tell them apart. As soon as you have more than several tests, you'll want to group them to process them more easily. So, naming and grouping are the two keys to managing collections of tests.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>In tune with the "composite" design pattern <del class="diffchange diffchange-inline">[[#</del>Design Patterns <del class="diffchange diffchange-inline">|</del> <del class="diffchange diffchange-inline">1]]</del>, a ''test'' is defined as a package of test cases. Concretely, a test is either a single test case, a group of tests, or either of the first two identified by a label.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>In tune with the "composite" design pattern<ins class="diffchange diffchange-inline"><ref>Gamma,</ins> <ins class="diffchange diffchange-inline">E., et al., ''</ins>Design Patterns<ins class="diffchange diffchange-inline">: Elements of Reusable Object-Oriented Software'', Addison-Wesley, Reading,</ins> <ins class="diffchange diffchange-inline">MA,</ins> <ins class="diffchange diffchange-inline">1995.</ref></ins>, a ''test'' is defined as a package of test cases. Concretely, a test is either a single test case, a group of tests, or either of the first two identified by a label.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== References ==</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>; [1] Gamma, E., et al. Design Patterns: Elements of Reusable Object-Oriented Software, Addison-Wesley, Reading, MA, 1995.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>: The classic book describing design patterns in an object-oriented context.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>; [http://www.junit.org http://www.junit.org]</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>; [http://www.junit.org http://www.junit.org]</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>: Web page for JUnit, the tool after which HUnit is modeled.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>: Web page for JUnit, the tool after which HUnit is modeled.</div></td>
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</table>Maniaphobichttps://wiki.haskell.org/index.php?title=HUnit_1.0_User%27s_Guide&diff=63306&oldid=prevManiaphobic: /* Tests */ I removed what appeared to be an extra "]" on the link to "#Design Patterns". Please correct this if I guessed incorrectly.2020-05-15T01:56:48Z<p><span dir="auto"><span class="autocomment">Tests: </span> I removed what appeared to be an extra "]" on the link to "#Design Patterns". Please correct this if I guessed incorrectly.</span></p>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>As soon as you have more than one test, you'll want to name them to tell them apart. As soon as you have more than several tests, you'll want to group them to process them more easily. So, naming and grouping are the two keys to managing collections of tests.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>As soon as you have more than one test, you'll want to name them to tell them apart. As soon as you have more than several tests, you'll want to group them to process them more easily. So, naming and grouping are the two keys to managing collections of tests.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>In tune with the "composite" design pattern [[#Design Patterns | 1<del class="diffchange diffchange-inline">]</del>]], a ''test'' is defined as a package of test cases. Concretely, a test is either a single test case, a group of tests, or either of the first two identified by a label.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>In tune with the "composite" design pattern [[#Design Patterns | 1]], a ''test'' is defined as a package of test cases. Concretely, a test is either a single test case, a group of tests, or either of the first two identified by a label.</div></td>
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</table>Maniaphobichttps://wiki.haskell.org/index.php?title=HUnit_1.0_User%27s_Guide&diff=45907&oldid=prevErlendH: remove stray “</p>”2012-06-05T21:13:38Z<p>remove stray “</p>”</p>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><haskell></div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><haskell></div></td>
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</table>ErlendHhttps://wiki.haskell.org/index.php?title=HUnit_1.0_User%27s_Guide&diff=44337&oldid=prevDougRansom: Removed historical error re claim Java/JUnit pioneered xUnit and TDD.2012-02-04T17:35:55Z<p>Removed historical error re claim Java/JUnit pioneered xUnit and TDD.</p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:35, 4 February 2012</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Introduction ==</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Introduction ==</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>A test-centered methodology for software development is most effective when tests are easy to create, change, and execute. The [<del class="diffchange diffchange-inline">http</del>://<del class="diffchange diffchange-inline">www</del>.<del class="diffchange diffchange-inline">junit</del>.org <del class="diffchange diffchange-inline">JUnit</del>] tool pioneered support for test-first development in <del class="diffchange diffchange-inline">[http://java.sun.com Java]</del>. HUnit is an adaptation of <del class="diffchange diffchange-inline">JUnit</del> to Haskell, a general-purpose, purely functional programming language. (To learn more about Haskell, see [http://www.haskell.org http://www.haskell.org].)</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>A test-centered methodology for software development is most effective when tests are easy to create, change, and execute. The [<ins class="diffchange diffchange-inline">https</ins>://<ins class="diffchange diffchange-inline">en</ins>.<ins class="diffchange diffchange-inline">wikipedia</ins>.org<ins class="diffchange diffchange-inline">/wiki/SUnit</ins> <ins class="diffchange diffchange-inline">Sunit</ins>] tool pioneered support for test-first development in <ins class="diffchange diffchange-inline">Smalltalk</ins>. HUnit is an adaptation of <ins class="diffchange diffchange-inline">the unit testing framework</ins> to Haskell, a general-purpose, purely functional programming language. (To learn more about Haskell, see [http://www.haskell.org http://www.haskell.org].)<ins class="diffchange diffchange-inline">. Unit testing frameworks for various languages are referred to as [https://en.wikipedia.org/wiki/XUnit xUnit].</ins></div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>With HUnit, as with <del class="diffchange diffchange-inline">JUnit</del>, you can easily create tests, name them, group them into suites, and execute them, with the framework checking the results automatically<del class="diffchange diffchange-inline">. Test specification in HUnit is even more concise and flexible than in JUnit, thanks to the nature of the Haskell language</del>. HUnit currently includes only a text-based test controller, but the framework is designed for easy extension. (Would anyone care to write a graphical test controller for HUnit?)</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>With HUnit, as with <ins class="diffchange diffchange-inline">[https://en.wikipedia.org/wiki/XUnit xUnit]</ins>, you can easily create tests, name them, group them into suites, and execute them, with the framework checking the results automatically. HUnit currently includes only a text-based test controller, but the framework is designed for easy extension. (Would anyone care to write a graphical test controller for HUnit?)</div></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The next section helps you get started using HUnit in simple ways. Subsequent sections give details on [[#Writing Tests | writing tests]] and [[#Running Tests | running tests]]. The document concludes with a section describing HUnit's [[#ConstituentFiles | constituent files]] and a section giving [[#References | references]] to further information.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The next section helps you get started using HUnit in simple ways. Subsequent sections give details on [[#Writing Tests | writing tests]] and [[#Running Tests | running tests]]. The document concludes with a section describing HUnit's [[#ConstituentFiles | constituent files]] and a section giving [[#References | references]] to further information.</div></td>
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</table>DougRansomhttps://wiki.haskell.org/index.php?title=HUnit_1.0_User%27s_Guide&diff=42426&oldid=prevDag: Use code instead of hask for inlines because they contain markup; Decode all html entities2011-10-13T15:03:11Z<p>Use code instead of hask for inlines because they contain markup; Decode all html entities</p>
<a href="https://wiki.haskell.org/index.php?title=HUnit_1.0_User%27s_Guide&diff=42426&oldid=42425">Show changes</a>Daghttps://wiki.haskell.org/index.php?title=HUnit_1.0_User%27s_Guide&diff=42425&oldid=prevDag: Substitude space char entities for real spaces2011-10-13T14:52:37Z<p>Substitude space char entities for real spaces</p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:52, 13 October 2011</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A test case consists of a single, possibly collective, assertion. The possibly multiple constituent assertions in a test case's collective assertion are ''not'' independent. Their interdependence may be crucial to specifying correct operation for a test. A test case may involve a series of steps, each concluding in an assertion, where each step must succeed in order for the test case to continue. As another example, a test may require some "set up" to be performed that must be undone ("torn down" in JUnit parlance) once the test is complete. In this case, you could use Haskell's <hask>IO.bracket</hask> function to achieve the desired effect.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A test case consists of a single, possibly collective, assertion. The possibly multiple constituent assertions in a test case's collective assertion are ''not'' independent. Their interdependence may be crucial to specifying correct operation for a test. A test case may involve a series of steps, each concluding in an assertion, where each step must succeed in order for the test case to continue. As another example, a test may require some "set up" to be performed that must be undone ("torn down" in JUnit parlance) once the test is complete. In this case, you could use Haskell's <hask>IO.bracket</hask> function to achieve the desired effect.</div></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>You can make a test case from an assertion by applying the <hask>TestCase</hask> constructor. For example, <hask>(TestCase<del class="diffchange diffchange-inline">&nbsp;</del>(return<del class="diffchange diffchange-inline">&nbsp;</del>()))</hask> is a test case that never fails, and <hask>(TestCase<del class="diffchange diffchange-inline">&nbsp;</del>assertEqual<del class="diffchange diffchange-inline">&nbsp;</del>"for<del class="diffchange diffchange-inline">&nbsp;</del>x,"<del class="diffchange diffchange-inline">&nbsp;</del>3<del class="diffchange diffchange-inline">&nbsp;</del>x))</hask> is a test case that checks that the value of <hask>x</hask> is 3. Additional ways to create test cases are described later under [[#Advanced Features | Advanced Features]].</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>You can make a test case from an assertion by applying the <hask>TestCase</hask> constructor. For example, <hask>(TestCase<ins class="diffchange diffchange-inline"> </ins>(return<ins class="diffchange diffchange-inline"> </ins>()))</hask> is a test case that never fails, and <hask>(TestCase<ins class="diffchange diffchange-inline"> </ins>assertEqual<ins class="diffchange diffchange-inline"> </ins>"for<ins class="diffchange diffchange-inline"> </ins>x,"<ins class="diffchange diffchange-inline"> </ins>3<ins class="diffchange diffchange-inline"> </ins>x))</hask> is a test case that checks that the value of <hask>x</hask> is 3. Additional ways to create test cases are described later under [[#Advanced Features | Advanced Features]].</div></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Tests ===</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Tests ===</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></haskell></div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></haskell></div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>With the above declarations, <hask>(assert<del class="diffchange diffchange-inline">&nbsp;</del>())</hask>, <hask>(assert<del class="diffchange diffchange-inline">&nbsp;</del>True)</hask>, and <hask>(assert<del class="diffchange diffchange-inline">&nbsp;</del>"")</hask> (as well as <hask>IO</hask> forms of these values, such as <hask>(return<del class="diffchange diffchange-inline">&nbsp;</del>())</hask>) are all assertions that never fail, while <hask>(assert<del class="diffchange diffchange-inline">&nbsp;</del>False)</hask> and <hask>(assert<del class="diffchange diffchange-inline">&nbsp;</del>"some<del class="diffchange diffchange-inline">&nbsp;</del>failure<del class="diffchange diffchange-inline">&nbsp;</del>message")</hask> (and their <hask>IO</hask> forms) are assertions that always fail. You may define additional instances for the type classes <hask>Assertable</hask>, <hask>ListAssertable</hask>, and <hask>AssertionPredicable</hask> if that should be useful in your application.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>With the above declarations, <hask>(assert<ins class="diffchange diffchange-inline"> </ins>())</hask>, <hask>(assert<ins class="diffchange diffchange-inline"> </ins>True)</hask>, and <hask>(assert<ins class="diffchange diffchange-inline"> </ins>"")</hask> (as well as <hask>IO</hask> forms of these values, such as <hask>(return<ins class="diffchange diffchange-inline"> </ins>())</hask>) are all assertions that never fail, while <hask>(assert<ins class="diffchange diffchange-inline"> </ins>False)</hask> and <hask>(assert<ins class="diffchange diffchange-inline"> </ins>"some<ins class="diffchange diffchange-inline"> </ins>failure<ins class="diffchange diffchange-inline"> </ins>message")</hask> (and their <hask>IO</hask> forms) are assertions that always fail. You may define additional instances for the type classes <hask>Assertable</hask>, <hask>ListAssertable</hask>, and <hask>AssertionPredicable</hask> if that should be useful in your application.</div></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The overloaded <hask>test</hask> function in the <hask>Testable</hask> type class constructs a test.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The overloaded <hask>test</hask> function in the <hask>Testable</hask> type class constructs a test.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* <hask>failures</hask> is the number of test cases whose execution asserted failure. Failures indicate problems with the code under test.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* <hask>failures</hask> is the number of test cases whose execution asserted failure. Failures indicate problems with the code under test.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Why is there no count for test case successes? The technical reason is that the counts are maintained such that the number of test case successes is always equal to <hask>(tried<del class="diffchange diffchange-inline">&nbsp;</del>-<del class="diffchange diffchange-inline">&nbsp;</del>(errors<del class="diffchange diffchange-inline">&nbsp;</del>+<del class="diffchange diffchange-inline">&nbsp;</del>failures))</hask>. The psychosocial reason is that, with test-centered development and the expectation that test failures will be few and short-lived, attention should be focused on the failures rather than the successes.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Why is there no count for test case successes? The technical reason is that the counts are maintained such that the number of test case successes is always equal to <hask>(tried<ins class="diffchange diffchange-inline"> </ins>-<ins class="diffchange diffchange-inline"> </ins>(errors<ins class="diffchange diffchange-inline"> </ins>+<ins class="diffchange diffchange-inline"> </ins>failures))</hask>. The psychosocial reason is that, with test-centered development and the expectation that test failures will be few and short-lived, attention should be focused on the failures rather than the successes.</div></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>As test execution proceeds, three kinds of reporting event are communicated to the test controller. (What the controller does in response to the reporting events depends on the controller.)</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>As test execution proceeds, three kinds of reporting event are communicated to the test controller. (What the controller does in response to the reporting events depends on the controller.)</div></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* A ''start'' report is the result of the function <hask>showCounts</hask> applied to the counts current immediately prior to initiation of the test case being started.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* A ''start'' report is the result of the function <hask>showCounts</hask> applied to the counts current immediately prior to initiation of the test case being started.</div></td>
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<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* An ''error' report is of the form "<hask>Error<del class="diffchange diffchange-inline">&nbsp;</del>in:<del class="diffchange diffchange-inline">&nbsp;&nbsp;&nbsp;</del>''path''\n''message''</hask>", where ''path'' is the path of the test case in error, as shown by <hask>showPath</hask>, and ''message'' is a message describing the error. If the path is empty, the report has the form "<hask>Error:\n''message''</hask>".</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* An ''error' report is of the form "<hask>Error<ins class="diffchange diffchange-inline"> </ins>in:<ins class="diffchange diffchange-inline"> </ins>''path''\n''message''</hask>", where ''path'' is the path of the test case in error, as shown by <hask>showPath</hask>, and ''message'' is a message describing the error. If the path is empty, the report has the form "<hask>Error:\n''message''</hask>".</div></td>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* A ''failure'' report is of the form "<hask>Failure<del class="diffchange diffchange-inline">&nbsp;</del>in:<del class="diffchange diffchange-inline">&nbsp;</del>''path''\n''message''</hask>", where <i>path</i> is the path of the test case in error, as shown by <hask>showPath</hask>, and ''message'' is the failure message. If the path is empty, the report has the form "<hask>Failure:\n''message''</hask>".</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* A ''failure'' report is of the form "<hask>Failure<ins class="diffchange diffchange-inline"> </ins>in:<ins class="diffchange diffchange-inline"> </ins>''path''\n''message''</hask>", where <i>path</i> is the path of the test case in error, as shown by <hask>showPath</hask>, and ''message'' is the failure message. If the path is empty, the report has the form "<hask>Failure:\n''message''</hask>".</div></td>
</tr>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The function <hask>showCounts</hask> shows a set of counts.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The function <hask>showCounts</hask> shows a set of counts.</div></td>
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<td colspan="2" class="diff-lineno">Line 336:</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></haskell></div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></haskell></div></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The form of its result is "<hask>Cases:<del class="diffchange diffchange-inline">&nbsp;</del>''cases''<del class="diffchange diffchange-inline">&nbsp;&nbsp;</del>Tried:<del class="diffchange diffchange-inline">&nbsp;</del><i>tried</i><del class="diffchange diffchange-inline">&nbsp;&nbsp;</del>Errors:<del class="diffchange diffchange-inline">&nbsp;</del><i>errors</i><del class="diffchange diffchange-inline">&nbsp;&nbsp;</del>Failures:<del class="diffchange diffchange-inline">&nbsp;</del><i>failures</i></hask>" where <i>cases</i>, <i>tried</i>, <i>errors</i>, and <i>failures</i> are the count values.</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The form of its result is "<hask>Cases:<ins class="diffchange diffchange-inline"> </ins>''cases''<ins class="diffchange diffchange-inline"> </ins>Tried:<ins class="diffchange diffchange-inline"> </ins><i>tried</i><ins class="diffchange diffchange-inline"> </ins>Errors:<ins class="diffchange diffchange-inline"> </ins><i>errors</i><ins class="diffchange diffchange-inline"> </ins>Failures:<ins class="diffchange diffchange-inline"> </ins><i>failures</i></hask>" where <i>cases</i>, <i>tried</i>, <i>errors</i>, and <i>failures</i> are the count values.</div></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The function <hask>showPath</hask> shows a test case path.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The function <hask>showPath</hask> shows a test case path.</div></td>
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<td colspan="2" class="diff-lineno">Line 358:</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></haskell></div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></haskell></div></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><hask>putTextToShowS</hask> ignores start reports and simply accumulates error and failure reports, terminating them with newlines. The accumulated reports are returned (as the second element of the pair returned by <hask>runTestText</hask>) as a <hask>ShowS</hask> function (that is, one with type <hask>(String<del class="diffchange diffchange-inline">&nbsp;</del>-><del class="diffchange diffchange-inline">&nbsp;</del>String)</hask>) whose first argument is a string to be appended to the accumulated report lines.</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><hask>putTextToShowS</hask> ignores start reports and simply accumulates error and failure reports, terminating them with newlines. The accumulated reports are returned (as the second element of the pair returned by <hask>runTestText</hask>) as a <hask>ShowS</hask> function (that is, one with type <hask>(String<ins class="diffchange diffchange-inline"> </ins>-><ins class="diffchange diffchange-inline"> </ins>String)</hask>) whose first argument is a string to be appended to the accumulated report lines.</div></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>HUnit provides a shorthand for the most common use of the text-based test controller.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>HUnit provides a shorthand for the most common use of the text-based test controller.</div></td>
</tr>
</table>Daghttps://wiki.haskell.org/index.php?title=HUnit_1.0_User%27s_Guide&diff=42424&oldid=prevDag: Syntax highlighting for Haskell code2011-10-13T14:48:32Z<p>Syntax highlighting for Haskell code</p>
<a href="https://wiki.haskell.org/index.php?title=HUnit_1.0_User%27s_Guide&diff=42424&oldid=26955">Show changes</a>Daghttps://wiki.haskell.org/index.php?title=HUnit_1.0_User%27s_Guide&diff=26955&oldid=prevHenk-Jan van Tuyl: Changed '&endash;' to '-'2009-03-14T08:56:07Z<p>Changed '&endash;' to '-'</p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
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<col class="diff-marker" />
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 08:56, 14 March 2009</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></code></div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></code></div></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>You provide a boolean condition and failure message separately to <tt>(@?)</tt>, as for <tt>assertBool</tt>, but in a different order. The <tt>(@=?)</tt> and <tt>(@?=)</tt> operators provide shorthands for <tt>assertEqual</tt> when no preface is required. They differ only in the order in which the expected and actual values are provided. (The actual value <del class="diffchange diffchange-inline">&endash;</del> the uncertain one <del class="diffchange diffchange-inline">&endash;</del> goes on the "?" side of the operator.)</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>You provide a boolean condition and failure message separately to <tt>(@?)</tt>, as for <tt>assertBool</tt>, but in a different order. The <tt>(@=?)</tt> and <tt>(@?=)</tt> operators provide shorthands for <tt>assertEqual</tt> when no preface is required. They differ only in the order in which the expected and actual values are provided. (The actual value <ins class="diffchange diffchange-inline">-</ins> the uncertain one <ins class="diffchange diffchange-inline">-</ins> goes on the "?" side of the operator.)</div></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The <tt>(@?)</tt> operator's first argument is something from which an assertion predicate can be made, that is, its type must be <tt>AssertionPredicable</tt>.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The <tt>(@?)</tt> operator's first argument is something from which an assertion predicate can be made, that is, its type must be <tt>AssertionPredicable</tt>.</div></td>
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</table>Henk-Jan van Tuylhttps://wiki.haskell.org/index.php?title=HUnit_1.0_User%27s_Guide&diff=26952&oldid=prevHenk-Jan van Tuyl at 22:48, 13 March 20092009-03-13T22:48:20Z<p></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 22:48, 13 March 2009</td>
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<td colspan="2" class="diff-lineno">Line 122:</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A ''test case'' is the unit of test execution. That is, distinct test cases are executed independently. The failure of one is independent of the failure of any other.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A ''test case'' is the unit of test execution. That is, distinct test cases are executed independently. The failure of one is independent of the failure of any other.</div></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline"> </del>test case consists of a single, possibly collective, assertion. The possibly multiple constituent assertions in a test case's collective assertion are ''not'' independent. Their interdependence may be crucial to specifying correct operation for a test. A test case may involve a series of steps, each concluding in an assertion, where each step must succeed in order for the test case to continue. As another example, a test may require some "set up" to be performed that must be undone ("torn down" in JUnit parlance) once the test is complete. In this case, you could use Haskell's <tt>IO.bracket</tt> function to achieve the desired effect.</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">A </ins>test case consists of a single, possibly collective, assertion. The possibly multiple constituent assertions in a test case's collective assertion are ''not'' independent. Their interdependence may be crucial to specifying correct operation for a test. A test case may involve a series of steps, each concluding in an assertion, where each step must succeed in order for the test case to continue. As another example, a test may require some "set up" to be performed that must be undone ("torn down" in JUnit parlance) once the test is complete. In this case, you could use Haskell's <tt>IO.bracket</tt> function to achieve the desired effect.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>You can make a test case from an assertion by applying the <tt>TestCase</tt> constructor. For example, <tt>(TestCase&nbsp;(return&nbsp;()))</tt> is a test case that never fails, and <tt>(TestCase&nbsp;assertEqual&nbsp;"for&nbsp;x,"&nbsp;3&nbsp;x))</tt> is a test case that checks that the value of <tt>x</tt> is 3. Additional ways to create test cases are described later under [[#Advanced Features | Advanced Features]].</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>You can make a test case from an assertion by applying the <tt>TestCase</tt> constructor. For example, <tt>(TestCase&nbsp;(return&nbsp;()))</tt> is a test case that never fails, and <tt>(TestCase&nbsp;assertEqual&nbsp;"for&nbsp;x,"&nbsp;3&nbsp;x))</tt> is a test case that checks that the value of <tt>x</tt> is 3. Additional ways to create test cases are described later under [[#Advanced Features | Advanced Features]].</div></td>
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</table>Henk-Jan van Tuyl