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<h1><a href="../../index.html">Django 1.11.20 documentation</a></h1>
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<span id="testing-in-django"></span><h1>Testing in Django<a class="headerlink" href="#testing-in-django" title="Permalink to this headline">¶</a></h1>
<p>Automated testing is an extremely useful bug-killing tool for the modern
Web developer. You can use a collection of tests – a <strong>test suite</strong> – to
solve, or avoid, a number of problems:</p>
<ul class="simple">
<li>When you’re writing new code, you can use tests to validate your code
works as expected.</li>
<li>When you’re refactoring or modifying old code, you can use tests to
ensure your changes haven’t affected your application’s behavior
unexpectedly.</li>
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<p>Testing a Web application is a complex task, because a Web application is made
of several layers of logic – from HTTP-level request handling, to form
validation and processing, to template rendering. With Django’s test-execution
framework and assorted utilities, you can simulate requests, insert test data,
inspect your application’s output and generally verify your code is doing what
it should be doing.</p>
<p>The best part is, it’s really easy.</p>
<p>The preferred way to write tests in Django is using the <code class="xref py py-mod docutils literal notranslate"><span class="pre">unittest</span></code> module
built in to the Python standard library. This is covered in detail in the
<a class="reference internal" href="overview.html"><span class="doc">Writing and running tests</span></a> document.</p>
<p>You can also use any <em>other</em> Python test framework; Django provides an API and
tools for that kind of integration. They are described in the
<a class="reference internal" href="advanced.html#other-testing-frameworks"><span class="std std-ref">Using different testing frameworks</span></a> section of <a class="reference internal" href="advanced.html"><span class="doc">Advanced testing topics</span></a>.</p>
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