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<p>Heron uses <a href="compiling-overview#installing-bazel">Bazel</a> for building
and running unit tests. Before running tests, first set up your build environment
as described in <a href="compiling-overview">Compiling Heron</a>.</p>
<h3><a class="anchor" aria-hidden="true" id="running-unit-tests"></a><a href="#running-unit-tests" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Running Unit Tests</h3>
<p>The following command will run all tests:</p>
<pre><code class="hljs css language-bash">$ bazel <span class="hljs-built_in">test</span> heron/...
</code></pre>
<p>To run a specific <a href="http://bazel.io/docs/test-encyclopedia.html">test
target</a>, pass the test target name.</p>
<pre><code class="hljs css language-bash">$ bazel <span class="hljs-built_in">test</span> heron/statemgrs/tests/java:localfs-statemgr_unittest
</code></pre>
<h3><a class="anchor" aria-hidden="true" id="discovering-unit-test-targets"></a><a href="#discovering-unit-test-targets" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Discovering Unit Test Targets</h3>
<p>To see a full listing of all Bazel test targets:</p>
<pre><code class="hljs css language-bash">$ bazel query <span class="hljs-string">'kind(".*_test rule", ...)'</span>
</code></pre>
<p>For <strong>Java</strong> targets only:</p>
<pre><code class="hljs css language-bash">$ bazel query <span class="hljs-string">'kind("java_test rule", ...)'</span>
</code></pre>
<p>For <strong>C++</strong> targets:</p>
<pre><code class="hljs css language-bash">$ bazel query <span class="hljs-string">'kind("cc_test rule", ...)'</span>
</code></pre>
<p>For <strong>Python</strong> targets:</p>
<pre><code class="hljs css language-bash">$ bazel query <span class="hljs-string">'kind("pex_test rule", ...)'</span>
</code></pre>
<h3><a class="anchor" aria-hidden="true" id="running-integration-tests"></a><a href="#running-integration-tests" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Running Integration Tests</h3>
<p>Integration tests are divided into two categories:</p>
<ul>
<li><p>Functional integration tests</p>
<p>These integration tests are designed for testing the functionality of
Heron, such as topologies and groupings.
To run the functional integration tests on a Mac OS X, do the following:</p>
<pre><code class="hljs css language-bash">$ ./scripts/run_integration_test.sh
</code></pre></li>
<li><p>Failure integration tests</p>
<p>These integration tests are designed for testing recovery from failure/restart
in certain processes, such as Topology Manager and Metrics Manager.
To run the failure integration tests on a Mac OS X, do the following:</p>
<pre><code class="hljs css language-bash">$ bazel build integration_test/src/...
$ ./bazel-bin/integration_test/src/python/local_test_runner/<span class="hljs-built_in">local</span>-test-runner
</code></pre></li>
</ul>
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