Provide backwards-compatibility layer for 5.x simpletest
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Reported by: [webchick](https://www.drupal.org/user/24967)
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<p>Once we finalize the API changes, what I'd love to see is a backwards compatibility layer around the 5.x and 6.x versions of SimpleTest, so that for example in a 5.x module's .test file I could write either:</p>
<div class="codeblock">
<pre><span style="color: #000000"><span style="color: #0000BB"><?php<br></span><span style="color: #007700">function </span><span style="color: #0000BB">get_info</span><span style="color: #007700">() { </span><span style="color: #FF8000">// Deprecated.<br> </span><span style="color: #007700">return array(<br> </span><span style="color: #DD0000">'name' </span><span style="color: #007700">=> </span><span style="color: #0000BB">t</span><span style="color: #007700">(</span><span style="color: #DD0000">'Privatemsg message send'</span><span style="color: #007700">),<br> </span><span style="color: #DD0000">'desc' </span><span style="color: #007700">=> </span><span style="color: #0000BB">t</span><span style="color: #007700">(</span><span style="color: #DD0000">'Send a message and check that it landed.'</span><span style="color: #007700">),<br> </span><span style="color: #DD0000">'group' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'Privatemsg'</span><span style="color: #007700">,<br> );<br>}<br></span><span style="color: #0000BB">?></span></span></pre></div>
<p>or:</p>
<div class="codeblock">
<pre><span style="color: #000000"><span style="color: #0000BB"><?php<br></span><span style="color: #007700">function </span><span style="color: #0000BB">getInfo</span><span style="color: #007700">() {<br> return array(<br> </span><span style="color: #DD0000">'name' </span><span style="color: #007700">=> </span><span style="color: #0000BB">t</span><span style="color: #007700">(</span><span style="color: #DD0000">'Privatemsg message send'</span><span style="color: #007700">),<br> </span><span style="color: #DD0000">'description' </span><span style="color: #007700">=> </span><span style="color: #0000BB">t</span><span style="color: #007700">(</span><span style="color: #DD0000">'Send a message and check that it landed.'</span><span style="color: #007700">),<br> </span><span style="color: #DD0000">'group' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'Privatemsg'</span><span style="color: #007700">,<br> );<br>}<br></span><span style="color: #0000BB">?></span></span></pre></div>
<p>... and it would automatically call the right function.</p>
<p>This would make it much easier for the vast majority of developers who are /not/ working on core, and are instead working on their own contrib modules to use the same syntax as the people working on 7.x can use, while not breaking any existing tests.</p>
<p>Without this, developers have to really learn two versions of the API, and that's going to slow down test adoption. If we can get people to write tests for their own modules, we should also make the shift to writing tests for core as easy as possible.</p>
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