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Derek 2020-10-15 11:23:31 -04:00
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<div id="content">
<div id="outline-container-org27362da" class="outline-2">
<h2 id="org27362da">Auto rewrite unit tests <span class="timestamp-wrapper"><span class="timestamp">[2018-06-11 Mon 19:33]</span></span></h2>
<div class="outline-text-2" id="text-org27362da">
</div>
<div id="outline-container-org378dd78" class="outline-3">
<h3 id="org378dd78">Suggest</h3>
<div class="outline-text-3" id="text-org378dd78">
<p>
Can unit tests be reduced to a form where machines can rewrite them
automatically? A first approach might be diff'ing the parse trees
between the (current AST) and (AST previous commit). Then using the
diff to produce an automatic translation from (AST of tests from previous
commit) to the current commit.
</p>
<p>
This must be possible, maybe not with current tools, but people do it
manually all the time and it's generally regarded as one of the more
mundane tasks. Tests usually contain just enough state to test one
function or method, it's a very constrained use of the library under
test's API, so code with the least possible complexity to demonstrate
soundness.
</p>
<p>
Maybe building abstractions over the API usage itself, to describe how
it is used, a generalized test protocol. Bonus, something like this
could generate documentation.
</p>
</div>
</div>
<div id="outline-container-orgf383d9e" class="outline-3">
<h3 id="orgf383d9e">AutoProtocols</h3>
<div class="outline-text-3" id="text-orgf383d9e">
</div>
<div id="outline-container-org1417ae0" class="outline-4">
<h4 id="org1417ae0">TestProtocolFoo</h4>
<div class="outline-text-4" id="text-org1417ae0">
<ul class="org-ul">
<li>construct datatype</li>
<li>assert pre conditions</li>
<li>test property</li>
<li>assert post conditions</li>
</ul>
</div>
</div>
<div id="outline-container-org6d9b37b" class="outline-4">
<h4 id="org6d9b37b">TestProtocolBarDB</h4>
<div class="outline-text-4" id="text-org6d9b37b">
<ul class="org-ul">
<li>init database</li>
<li>assert pre conditions</li>
<li>commit data</li>
<li>HTTP POST</li>
<li>assert post conditions</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div id="postamble" class="status">
<p class="author">Author: Derek Rhodes</p>
<p class="date">Created: 2018-07-29 Sun 22:12</p>
<p class="validation"><a href="http://validator.w3.org/check?uri=referer">Validate</a></p>
</div>
</body>
</html>

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without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.
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may distribute non-source (e.g., minimized or compacted) forms of
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section 4, provided you include this license notice and a URL
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<div id="content">
<div id="outline-container-orgd0ff897" class="outline-2">
<h2 id="orgd0ff897">Auto rewrite unit tests <span class="timestamp-wrapper"><span class="timestamp">[2018-06-11 Mon 19:33]</span></span></h2>
<div class="outline-text-2" id="text-orgd0ff897">
</div>
<div id="outline-container-org778f661" class="outline-3">
<h3 id="org778f661">Suggest</h3>
<div class="outline-text-3" id="text-org778f661">
<p>
Can unit tests be reduced to a form where machines can rewrite them
automatically? A first approach might be diff'ing the parse trees
between the (current AST) and (AST previous commit). Then using the
diff to produce an automatic translation from (AST of tests from previous
commit) to the current commit.
</p>
<p>
This must be possible, maybe not with current tools, but people do it
manually all the time and it's generally regarded as one of the more
mundane tasks. Tests usually contain just enough state to test one
function or method, it's a very constrained use of the library under
test's API, so code with the least possible complexity to demonstrate
soundness.
</p>
<p>
Maybe building abstractions over the API usage itself, to describe how
it is used, a generalized test protocol. Bonus, something like this
could generate documentation.
</p>
</div>
</div>
<div id="outline-container-orgbee7242" class="outline-3">
<h3 id="orgbee7242">AutoProtocols</h3>
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<h4 id="orge9de653">TestProtocolFoo</h4>
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<ul class="org-ul">
<li>construct datatype</li>
<li>assert pre conditions</li>
<li>test property</li>
<li>assert post conditions</li>
</ul>
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<h4 id="org57b9698">TestProtocolBarDB</h4>
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<ul class="org-ul">
<li>init database</li>
<li>assert pre conditions</li>
<li>commit data</li>
<li>HTTP POST</li>
<li>assert post conditions</li>
</ul>
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<div id="postamble" class="status">
<p class="author">Author: Derek Rhodes</p>
<p class="date">Created: 2018-07-27 Fri 09:26</p>
<p class="validation"><a href="http://validator.w3.org/check?uri=referer">Validate</a></p>
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* Auto rewrite unit tests [2018-06-11 Mon 19:33]
** Suggest
Can unit tests be reduced to a form where machines can rewrite them
automatically? A first approach might be diff'ing the parse trees
between the (current AST) and (AST previous commit). Then using the
diff to produce an automatic translation from (AST of tests from previous
commit) to the current commit.
This must be possible, maybe not with current tools, but people do it
manually all the time and it's generally regarded as one of the more
mundane tasks. Tests usually contain just enough state to test one
function or method, it's a very constrained use of the library under
test's API, so code with the least possible complexity to demonstrate
soundness.
Maybe building abstractions over the API usage itself, to describe how
it is used, a generalized test protocol. Bonus, something like this
could generate documentation.
** AutoProtocols
*** TestProtocolFoo
- construct datatype
- assert pre conditions
- test property
- assert post conditions
*** TestProtocolBarDB
- init database
- assert pre conditions
- commit data
- HTTP POST
- assert post conditions