http://wiki.apidesign.org/index.php?action=history&feed=atom&title=ImplementationCompatibilityTestImplementationCompatibilityTest - Revision history2026-04-07T07:12:14ZRevision history for this page on the wikiMediaWiki 1.12.0rc1http://wiki.apidesign.org/index.php?title=ImplementationCompatibilityTest&diff=5057&oldid=prevJaroslavTulach at 10:59, 22 August 20112011-08-22T10:59:48Z<p></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 10:59, 22 August 2011</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><source lang="java" snippet="total.rewrite.oldimpl"/></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><source lang="java" snippet="total.rewrite.oldimpl"/></div></td></tr>
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<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>and here is a <del style="color: red; font-weight: bold; text-decoration: none;">(randomized) test </del>to check the compatibility of new and old implementation:</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>and here is a <ins style="color: red; font-weight: bold; text-decoration: none;">[[RandomizedTest]] </ins>to check the compatibility of new and old implementation:</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><source lang="java" snippet="total.rewrite.compare"/></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><source lang="java" snippet="total.rewrite.compare"/></div></td></tr>
</table>JaroslavTulachhttp://wiki.apidesign.org/index.php?title=ImplementationCompatibilityTest&diff=3924&oldid=prevJaroslavTulach at 06:46, 5 August 20102010-08-05T06:46:41Z<p></p>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:APIDesignPatterns]] [[Category:APIDesignPatterns:Evolution]] [[Category:APIDesignPatterns:Test]]</ins></div></td></tr>
</table>JaroslavTulachhttp://wiki.apidesign.org/index.php?title=ImplementationCompatibilityTest&diff=2596&oldid=prevJaroslavTulach: New page: Very useful style of tests to ensure BackwardCompatibility when doing major rewrite of an implementation behind an API. Discussed in details in Chapter 15. The basic idea cons...2009-06-26T09:27:17Z<p>New page: Very useful style of tests to ensure <a href="/wiki/BackwardCompatibility" title="BackwardCompatibility">BackwardCompatibility</a> when doing major rewrite of an implementation behind an <a href="/wiki/API" class="mw-redirect" title="API">API</a>. Discussed in details in <a href="/wiki/Chapter_15" class="mw-redirect" title="Chapter 15">Chapter 15</a>. The basic idea cons...</p>
<p><b>New page</b></p><div>Very useful style of tests to ensure [[BackwardCompatibility]] when doing major rewrite of an implementation behind an [[API]]. Discussed in details in [[Chapter 15]].<br />
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The basic idea consist of copying the original implementation of an [[API]] into the test and then performing various calls into the [[API]] twice (in the new and old implementation) and then ensuring the result is the same.<br />
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For an example see this style applied to old good '''Arithmetica''' class introduced in [[AlternativeBehaviour]]. Here is the copy of old implementation:<br />
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<source lang="java" snippet="total.rewrite.oldimpl"/><br />
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and here is a (randomized) test to check the compatibility of new and old implementation:<br />
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<source lang="java" snippet="total.rewrite.compare"/></div>JaroslavTulach