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<div class="title">WiredTiger testing </div> </div>
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<div class="textblock"><p>WiredTiger uses a combination of several different tools and test programs for testing WiredTiger.</p>
<p>WiredTiger testing is done automatically using the <a href="http://jenkins-ci.org/">Jenkins</a> continuous integration testing framework. This allows us to be confident we don't introduce problems in a non-standard configuration, or performance regressions.</p>
<h1><a class="anchor" id="test_suite"></a>
Unit Test Suite</h1>
<p>WiredTiger's primary functionality and regression testing is done in a Python unit test suite (found in the source tree under <code>test/suite</code>).</p>
<p>The WiredTiger Python test suite includes approximately 10,000 separate tests which are run on all platforms supported by WiredTiger. Each test is intended to test a single operation in a reproducible way, making it easy to diagnose errors. The test suite runs multiple test cases in parallel, allowing it to be run in a relatively short period of time.</p>
<p>The WiredTiger unit test suite includes tests that cover:</p><ul>
<li>WiredTiger functionality (for example, cursors, transactions and recovery),</li>
<li>Combinations of WiredTiger's configuration settings and APIs,</li>
<li>Bug regression tests.</li>
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<p>The WiredTiger Python test suite is built using the WiredTiger Python API and the Python unittest functionality (the test suite requires at least Python version 2.6).</p>
<p>The WiredTiger test suite automatically runs as part of every commit into the WiredTiger GitHub source tree.</p>
<h1><a class="anchor" id="testing_performance"></a>
Performance Testing</h1>
<p>Performance testing is primarily done using the <code>bench/wtperf</code> utility. A variety of database configurations are run based on the scripts in <code>bench/wtperf/runners</code>.</p>
<p>WiredTiger performance tests are automatically run as part of each commit into the <code>develop</code> branch of the WiredTiger GitHub source tree and compared against previous runs to detect performance regressions.</p>
<h1><a class="anchor" id="testing_stress"></a>
Stress Testing</h1>
<p>Stress testing is primarily done using the <code>test/format</code> utility. This test program randomly configures a database and then runs some number of randomly selected operations, using some number of randomly selected threads, on that database. WiredTiger stress testing is run continuously on the WiredTiger GitHub <code>develop</code> branch.</p>
<h1><a class="anchor" id="testing_threads"></a>
Concurrency testing</h1>
<p>Concurrency testing is primarily done using the <code>test/format</code> utility. Additionally, the <code>test/thread</code> and <code>test/fops</code> test utilities test specific heavily threaded operations. WiredTiger concurrency testing is run continuously on the WiredTiger GitHub <code>develop</code> branch.</p>
<h1><a class="anchor" id="testing_static"></a>
Static analysis</h1>
<p>WiredTiger static analysis is done using three tools:</p>
<ul>
<li>The <a href="https://www.coverity.com/">Coverity, Inc.</a>software analysis tool; current results and historic defect reports are available at <a href="https://scan.coverity.com/projects/1018">Coverity's WiredTiger page</a>.</li>
<li>The Gimpel Software <a href="http://www.gimpel.com/html/flex.htm">FlexeLint</a> implementation of the UNIX lint tool.</li>
<li>The University of Illinois LLVM project's <a href="http://clang-analyzer.llvm.org/">Clang Static Analyzer</a>. </li>
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