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<div class="section" id="using-the-test-mode-configuration">
<h1>Using the Test Mode Configuration<a class="headerlink" href="#using-the-test-mode-configuration" title="Permalink to this headline"></a></h1>
<p>Airflow has a fixed set of “test mode” configuration options. You can load these
at any time by calling <code class="docutils literal notranslate"><span class="pre">airflow.configuration.load_test_config()</span></code>. Please <strong>note</strong> that this operation is <strong>not reversible</strong>.</p>
<p>Some options for example, <code class="docutils literal notranslate"><span class="pre">DAG_FOLDER</span></code>, are loaded before you have a chance to call <code class="docutils literal notranslate"><span class="pre">load_test_config()</span></code>.
In order to eagerly load the test configuration, set <code class="docutils literal notranslate"><span class="pre">test_mode</span></code> in <code class="docutils literal notranslate"><span class="pre">airflow.cfg</span></code>:</p>
<div class="highlight-ini notranslate"><div class="highlight"><pre><span></span><span class="k">[tests]</span>
<span class="na">unit_test_mode</span> <span class="o">=</span> <span class="s">True</span>
</pre></div>
</div>
<p>Due to Airflow’s automatic environment variable expansion (see <a class="reference internal" href="set-config.html"><span class="doc">Setting Configuration Options</span></a>), you can also set the environment variable <code class="docutils literal notranslate"><span class="pre">AIRFLOW__CORE__UNIT_TEST_MODE</span></code> to temporarily overwrite <code class="docutils literal notranslate"><span class="pre">airflow.cfg</span></code>.</p>
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