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<article class="slide level-1" id="testing-application-boundaries">
<h1>Testing Application Boundaries</h1>
<div class="line-block">
<div class="line">By: Randy Syring</div>
<div class="line">Twitter: @RandySyring</div>
<div class="line">Email: <a class="reference external" href="mailto:randy.syring%40level12.io">randy<span>.</span>syring<span>@</span>level12<span>.</span>io</a></div>
<div class="line"><a class="reference external" href="https://github.com/rsyring/">https://github.com/rsyring/</a></div>
</div>
<q class="epigraph">
...Software THAT WORKS!</q>
<img alt="_images/level12-logo2.png" src="_images/level12-logo2.png" />
</article>
<article class="slide level-2" id="introduction">
<h2>Introduction</h2>
<img alt="_images/level12-logo.png" class="align-right" src="_images/level12-logo.png" />
<p>I'm the Chief Executive Developer at <a class="reference external" href="https://www.level12.io/">Level 12</a>.</p>
<p>Level 12 is a web & database development firm that uses:</p>
<ul class="simple">
<li>solid engineering,</li>
<li>proactive communication, and</li>
<li>modern development practices</li>
</ul>
<p>to make our customers <strong>really, really, happy.</strong></p>
</article>
<article class="slide level-2" id="why-it-matters-to-you">
<h2>Why it Matters to You</h2>
<ul class="simple">
<li>Level 12 ... uses... <strong>modern development practices</strong></li>
<li>to make <strong>our customers</strong> really, really, happy</li>
</ul>
<p>Net result: this works and is maintainable in the "real world"</p>
</article>
<article class="slide level-2" id="some-numbers">
<h2>Some Numbers</h2>
<ul>
<li><p class="first">Biggest app:</p>
<blockquote>
<div><ul class="simple">
<li>6+ years</li>
<li>7,800 Python tests</li>
<li>350 JS tests</li>
<li>200+ DB tables</li>
<li>91% code coverage</li>
</ul>
</div></blockquote>
</li>
<li><p class="first">Newer app: 1 year, 1,230 Python tests, 35+ DB tables, 95% coverage</p>
</li>
<li><p class="first">I practice what I preach</p>
</li>
</ul>
</article>
<article class="slide level-2" id="test-types-overview">
<h2>Test Types Overview</h2>
<ul class="simple">
<li>unit tests: isolate</li>
<li>integration tests: multiple components</li>
<li>functional tests: end to end testing</li>
<li>acceptance tests: alias for functional tests?</li>
<li>sytem tests: infrastructure dependent testing</li>
<li>qa tests: let a human break it</li>
</ul>
<p>Your definitions may differ.</p>
</article>
<article class="slide level-2" id="google-s-on-to-something">
<h2>Google's On To Something</h2>
<img alt="_images/google-grid.png" class="fullpic" src="_images/google-grid.png" />
<p><a class="reference external" href="http://googletesting.blogspot.com/2010/12/test-sizes.html">http://googletesting.blogspot.com/2010/12/test-sizes.html</a></p>
</article>
<article class="slide level-2" id="testing-in-circles">
<h2>Testing in Circles</h2>
<img alt="_images/circles.png" class="fullpic" src="_images/circles.png" />
</article>
<article class="slide level-2" id="minimze-the-dmz">
<h2>Minimze the DMZ</h2>
<img alt="_images/circles2.png" class="fullpic" src="_images/circles2.png" />
</article>
<article class="slide level-2" id="two-principles">
<h2>Two Principles</h2>
<ul class="simple">
<li>Promote IO & side effects to the edge (make the core bigger)</li>
<li>Using dependency injection, mocks, etc. in the DMZ</li>
</ul>
</article>
<article class="slide level-2" id="examples-today">
<h2>Examples Today</h2>
<ul class="simple">
<li>File access</li>
<li>Date/time</li>
<li>Email</li>
<li>Web API</li>
</ul>
</article>
<article class="slide level-2" id="database-is-core">
<h2>Database is Core</h2>
<ul class="simple">
<li>The database is usually too important to the application to consider it in the DMZ</li>
<li>Google allowed DB access for their "medium" tests</li>
</ul>
</article>
<article class="slide level-2" id="bring-on-the-code">
<h2>Bring on the Code</h2>
<img alt="_images/demo-meme.jpg" class="fullpic" src="_images/demo-meme.jpg" />
<p>Code diffs: <a class="reference external" href="https://gist.github.com/rsyring">https://gist.github.com/rsyring</a></p>
</article>
<article class="slide level-2" id="thanks-for-attending">
<h2>Thanks For Attending</h2>
<div class="line-block">
<div class="line">By: Randy Syring</div>
<div class="line">Twitter: @RandySyring</div>
<div class="line">Email: <a class="reference external" href="mailto:randy.syring%40level12.io">randy<span>.</span>syring<span>@</span>level12<span>.</span>io</a></div>
<div class="line"><a class="reference external" href="https://github.com/rsyring/">https://github.com/rsyring/</a></div>
</div>
<p>Any questions? I'd appreciate feedback.</p>
</article>
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