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- <div class="titlepage"><div><div><h3 class="title">
- <a name="boost_test.tests_organization.enabling"></a><a class="link" href="enabling.html" title="Enabling or disabling test unit execution">Enabling or disabling
- test unit execution</a>
- </h3></div></div></div>
- <p>
- The <span class="emphasis"><em>Unit Test Framework</em></span> provides a way for enabling
- or disabling a test unit execution. If a test case is disabled, it will not
- be run by the test runner. If a test suite is disabled, its status is inherited
- by the test units under its subtree, unless otherwise specified.
- </p>
- <p>
- The run status can be overridden by the command line parameters: by providing
- the appropriate arguments to the command line, a disabled test may still
- be executed. The <a class="link" href="../runtime_config/test_unit_filtering.html" title="Test unit filtering">test
- unit filtering</a> section covers this feature in details.
- </p>
- <div class="warning"><table border="0" summary="Warning">
- <tr>
- <td rowspan="2" align="center" valign="top" width="25"><img alt="[Warning]" src="../../../../../../doc/src/images/warning.png"></td>
- <th align="left">Warning</th>
- </tr>
- <tr><td align="left" valign="top">
- <p>
- There is a difference between a disabled test and a skipped test:
- </p>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- a disabled test has a run status set to disabled, and is completely
- discarded by the <span class="emphasis"><em>Unit Test Framework</em></span>.
- </li>
- <li class="listitem">
- a skipped test is a test that has a run status set to enabled, but
- which execution has been skipped at runtime.
- </li>
- </ul></div>
- </td></tr>
- </table></div>
- <h4>
- <a name="boost_test.tests_organization.enabling.h0"></a>
- <span class="phrase"><a name="boost_test.tests_organization.enabling.unconditional_run_status"></a></span><a class="link" href="enabling.html#boost_test.tests_organization.enabling.unconditional_run_status">Unconditional
- run status</a>
- </h4>
- <p>
- Decorator <a class="link" href="../utf_reference/test_org_reference/decorator_enabled.html" title="enabled / disabled (decorator)"><code class="computeroutput"><span class="identifier">disabled</span></code></a> indicates that the test
- unit's <a class="link" href="../runtime_config/test_unit_filtering.html#ref_default_run_status"><span class="emphasis"><em>default run status</em></span></a>
- is <span class="emphasis"><em>false</em></span>. This means that that test cases inside this
- test unit will not be run by default, unless otherwise specified. Decorator
- <a class="link" href="../utf_reference/test_org_reference/decorator_enabled.html" title="enabled / disabled (decorator)"><code class="computeroutput"><span class="identifier">enabled</span></code></a> indicates that the test
- unit's default run status is <span class="emphasis"><em>true</em></span>. This means that that
- test cases inside this test unit will be run by default, unless otherwise
- specified.
- </p>
- <h6>
- <a name="boost_test.tests_organization.enabling.h1"></a>
- <span class="phrase"><a name="boost_test.tests_organization.enabling.example_descr"></a></span><a class="link" href="enabling.html#boost_test.tests_organization.enabling.example_descr">Example: decorators
- enabled and disabled</a>
- </h6>
- <div class="informaltable"><table class="table">
- <colgroup><col></colgroup>
- <thead><tr><th>
- <p>
- Code
- </p>
- </th></tr></thead>
- <tbody><tr><td>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="preprocessor">#define</span> <span class="identifier">BOOST_TEST_MODULE</span> <span class="identifier">decorator_05</span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">test</span><span class="special">/</span><span class="identifier">included</span><span class="special">/</span><span class="identifier">unit_test</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">utf</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">unit_test</span><span class="special">;</span>
- <span class="identifier">BOOST_AUTO_TEST_SUITE</span><span class="special">(</span><span class="identifier">suite1</span><span class="special">,</span> <span class="special">*</span> <span class="identifier">utf</span><span class="special">::</span><span class="identifier">disabled</span><span class="special">())</span>
- <span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span><span class="identifier">test1</span><span class="special">)</span>
- <span class="special">{</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="number">1</span> <span class="special">!=</span> <span class="number">1</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span><span class="identifier">test2</span><span class="special">,</span> <span class="special">*</span> <span class="identifier">utf</span><span class="special">::</span><span class="identifier">enabled</span><span class="special">())</span>
- <span class="special">{</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="number">2</span> <span class="special">!=</span> <span class="number">2</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="identifier">BOOST_AUTO_TEST_SUITE_END</span><span class="special">()</span>
- </pre>
- </td></tr></tbody>
- </table></div>
- <div class="informaltable"><table class="table">
- <colgroup><col></colgroup>
- <thead><tr><th>
- <p>
- Output
- </p>
- </th></tr></thead>
- <tbody><tr><td>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="special">></span> <span class="identifier">decorator_05</span>
- <span class="identifier">Running</span> <span class="number">1</span> <span class="identifier">test</span> <span class="keyword">case</span><span class="special">...</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">14</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"suite1/test2"</span><span class="special">:</span> <span class="identifier">check</span> <span class="number">2</span> <span class="special">!=</span> <span class="number">2</span> <span class="identifier">has</span> <span class="identifier">failed</span> <span class="special">[</span><span class="number">2</span> <span class="special">==</span> <span class="number">2</span><span class="special">]</span>
- <span class="special">***</span> <span class="number">1</span> <span class="identifier">failure</span> <span class="identifier">is</span> <span class="identifier">detected</span> <span class="identifier">in</span> <span class="identifier">the</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"decorator_05"</span>
- <span class="special">></span> <span class="identifier">decorator_05</span> <span class="special">--</span><span class="identifier">list_content</span>
- <span class="identifier">suite1</span><span class="special">*</span>
- <span class="identifier">test1</span>
- <span class="identifier">test2</span><span class="special">*</span>
- </pre>
- </td></tr></tbody>
- </table></div>
- <p>
- Syntactically, it is possible to apply both decorators <code class="computeroutput"><span class="identifier">enabled</span></code>
- and <code class="computeroutput"><span class="identifier">disabled</span></code> to the same
- test unit. This is reported as set-up error when the test program is run.
- </p>
- <h4>
- <a name="boost_test.tests_organization.enabling.h2"></a>
- <span class="phrase"><a name="boost_test.tests_organization.enabling.compilation_time_run_status"></a></span><a class="link" href="enabling.html#boost_test.tests_organization.enabling.compilation_time_run_status">Compilation-time
- run status</a>
- </h4>
- <p>
- Decorator <a class="link" href="../utf_reference/test_org_reference/decorator_enable_if.html" title="enable_if (decorator)"><code class="computeroutput"><span class="identifier">enable_if</span></code></a> indicates that the test
- unit's <a class="link" href="../runtime_config/test_unit_filtering.html#ref_default_run_status"><span class="emphasis"><em>default run status</em></span></a>
- is either <span class="emphasis"><em>true</em></span> or <span class="emphasis"><em>false</em></span>, depending
- on the value of <code class="computeroutput"><span class="identifier">Condition</span></code>.
- This means that that test cases inside this test unit will or will not be
- run by default.
- </p>
- <h6>
- <a name="boost_test.tests_organization.enabling.h3"></a>
- <span class="phrase"><a name="boost_test.tests_organization.enabling.example_descr0"></a></span><a class="link" href="enabling.html#boost_test.tests_organization.enabling.example_descr0">Example:
- decorator enable_if</a>
- </h6>
- <div class="informaltable"><table class="table">
- <colgroup><col></colgroup>
- <thead><tr><th>
- <p>
- Code
- </p>
- </th></tr></thead>
- <tbody><tr><td>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="preprocessor">#define</span> <span class="identifier">BOOST_TEST_MODULE</span> <span class="identifier">decorator_06</span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">test</span><span class="special">/</span><span class="identifier">included</span><span class="special">/</span><span class="identifier">unit_test</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">utf</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">unit_test</span><span class="special">;</span>
- <span class="keyword">const</span> <span class="keyword">bool</span> <span class="identifier">io_implemented</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">;</span>
- <span class="keyword">const</span> <span class="keyword">bool</span> <span class="identifier">db_implemented</span> <span class="special">=</span> <span class="keyword">false</span><span class="special">;</span>
- <span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span><span class="identifier">test_io</span><span class="special">,</span>
- <span class="special">*</span> <span class="identifier">utf</span><span class="special">::</span><span class="identifier">enable_if</span><span class="special"><</span><span class="identifier">io_implemented</span><span class="special">>())</span>
- <span class="special">{</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="number">1</span> <span class="special">!=</span> <span class="number">1</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span><span class="identifier">test_db</span><span class="special">,</span>
- <span class="special">*</span> <span class="identifier">utf</span><span class="special">::</span><span class="identifier">enable_if</span><span class="special"><</span><span class="identifier">db_implemented</span><span class="special">>())</span>
- <span class="special">{</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="number">2</span> <span class="special">!=</span> <span class="number">2</span><span class="special">);</span>
- <span class="special">}</span>
- </pre>
- </td></tr></tbody>
- </table></div>
- <div class="informaltable"><table class="table">
- <colgroup><col></colgroup>
- <thead><tr><th>
- <p>
- Output
- </p>
- </th></tr></thead>
- <tbody><tr><td>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="special">></span> <span class="identifier">decorator_06</span>
- <span class="identifier">Running</span> <span class="number">1</span> <span class="identifier">test</span> <span class="keyword">case</span><span class="special">...</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">11</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test_io"</span><span class="special">:</span> <span class="identifier">check</span> <span class="number">1</span> <span class="special">!=</span> <span class="number">1</span> <span class="identifier">has</span> <span class="identifier">failed</span> <span class="special">[</span><span class="number">1</span> <span class="special">==</span> <span class="number">1</span><span class="special">]</span>
- <span class="special">***</span> <span class="number">1</span> <span class="identifier">failure</span> <span class="identifier">is</span> <span class="identifier">detected</span> <span class="identifier">in</span> <span class="identifier">the</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"decorator_06"</span>
- <span class="special">></span> <span class="identifier">decorator_06</span> <span class="special">--</span><span class="identifier">list_content</span>
- <span class="identifier">test_io</span><span class="special">*</span>
- <span class="identifier">test_db</span>
- </pre>
- </td></tr></tbody>
- </table></div>
- <p>
- Decorator <code class="computeroutput"><span class="identifier">enable_if</span><span class="special"><</span><span class="keyword">true</span><span class="special">>()</span></code>
- is equivalent to decorator <code class="computeroutput"><span class="identifier">enabled</span><span class="special">()</span></code>. Similarly, <code class="computeroutput"><span class="identifier">enable_if</span><span class="special"><</span><span class="keyword">false</span><span class="special">>()</span></code> is equivalent to decorator <code class="computeroutput"><span class="identifier">disabled</span><span class="special">()</span></code>.
- </p>
- <h4>
- <a name="boost_test.tests_organization.enabling.h4"></a>
- <span class="phrase"><a name="boost_test.tests_organization.enabling.runtime_run_status"></a></span><a class="link" href="enabling.html#boost_test.tests_organization.enabling.runtime_run_status">Runtime
- run status</a>
- </h4>
- <p>
- Decorator <a class="link" href="../utf_reference/test_org_reference/decorator_precondition.html" title="precondition (decorator)"><code class="computeroutput"><span class="identifier">precondition</span></code></a> associates a <span class="emphasis"><em>predicate</em></span>
- with a test unit. Before the test unit is executed, the predicate is evaluated
- with the test unit's ID passed as the argument. If it evaluates to <code class="computeroutput"><span class="keyword">false</span></code>, execution of the test unit is skipped.
- Skipping a test suite means skipping the execution of every test unit inside.
- </p>
- <div class="tip"><table border="0" summary="Tip">
- <tr>
- <td rowspan="2" align="center" valign="top" width="25"><img alt="[Tip]" src="../../../../../../doc/src/images/tip.png"></td>
- <th align="left">Tip</th>
- </tr>
- <tr><td align="left" valign="top"><p>
- The precondition may return an <code class="computeroutput"><a class="link" href="../../boost/test_tools/assertion_result.html" title="Class assertion_result">assertion_result</a></code>
- instead of a boolean. In that case, the message contained in the <code class="computeroutput"><span class="identifier">assertion_result</span></code> will be printed by the
- <span class="emphasis"><em>Unit Test Framework</em></span>.
- </p></td></tr>
- </table></div>
- <h6>
- <a name="boost_test.tests_organization.enabling.h5"></a>
- <span class="phrase"><a name="boost_test.tests_organization.enabling.example_descr1"></a></span><a class="link" href="enabling.html#boost_test.tests_organization.enabling.example_descr1">Example:
- decorator precondition</a>
- </h6>
- <div class="informaltable"><table class="table">
- <colgroup><col></colgroup>
- <thead><tr><th>
- <p>
- Code
- </p>
- </th></tr></thead>
- <tbody><tr><td>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="preprocessor">#define</span> <span class="identifier">BOOST_TEST_MODULE</span> <span class="identifier">decorator_08</span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">test</span><span class="special">/</span><span class="identifier">included</span><span class="special">/</span><span class="identifier">unit_test</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">utf</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">unit_test</span><span class="special">;</span>
- <span class="keyword">namespace</span> <span class="identifier">tt</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">test_tools</span><span class="special">;</span>
- <span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span><span class="identifier">test1</span><span class="special">)</span>
- <span class="special">{</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="keyword">true</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span><span class="identifier">test2</span><span class="special">)</span>
- <span class="special">{</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="keyword">false</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="keyword">struct</span> <span class="identifier">if_either</span>
- <span class="special">{</span>
- <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">tc1</span><span class="special">,</span> <span class="identifier">tc2</span><span class="special">;</span>
- <span class="identifier">if_either</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">t1</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">t2</span><span class="special">)</span>
- <span class="special">:</span> <span class="identifier">tc1</span><span class="special">(</span><span class="identifier">t1</span><span class="special">),</span> <span class="identifier">tc2</span><span class="special">(</span><span class="identifier">t2</span><span class="special">)</span> <span class="special">{}</span>
- <span class="identifier">tt</span><span class="special">::</span><span class="identifier">assertion_result</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">utf</span><span class="special">::</span><span class="identifier">test_unit_id</span><span class="special">)</span>
- <span class="special">{</span>
- <span class="keyword">auto</span><span class="special">&</span> <span class="identifier">master</span> <span class="special">=</span> <span class="identifier">utf</span><span class="special">::</span><span class="identifier">framework</span><span class="special">::</span><span class="identifier">master_test_suite</span><span class="special">();</span>
- <span class="keyword">auto</span><span class="special">&</span> <span class="identifier">collector</span> <span class="special">=</span> <span class="identifier">utf</span><span class="special">::</span><span class="identifier">results_collector_t</span><span class="special">::</span><span class="identifier">instance</span><span class="special">();</span>
- <span class="keyword">auto</span><span class="special">&</span> <span class="identifier">test1_result</span> <span class="special">=</span> <span class="identifier">collector</span><span class="special">.</span><span class="identifier">results</span><span class="special">(</span><span class="identifier">master</span><span class="special">.</span><span class="identifier">get</span><span class="special">(</span><span class="identifier">tc1</span><span class="special">));</span>
- <span class="keyword">auto</span><span class="special">&</span> <span class="identifier">test2_result</span> <span class="special">=</span> <span class="identifier">collector</span><span class="special">.</span><span class="identifier">results</span><span class="special">(</span><span class="identifier">master</span><span class="special">.</span><span class="identifier">get</span><span class="special">(</span><span class="identifier">tc2</span><span class="special">));</span>
- <span class="keyword">if</span> <span class="special">(</span><span class="identifier">test1_result</span><span class="special">.</span><span class="identifier">passed</span><span class="special">()</span> <span class="special">||</span> <span class="identifier">test2_result</span><span class="special">.</span><span class="identifier">passed</span><span class="special">())</span>
- <span class="keyword">return</span> <span class="keyword">true</span><span class="special">;</span>
- <span class="identifier">tt</span><span class="special">::</span><span class="identifier">assertion_result</span> <span class="identifier">ans</span><span class="special">(</span><span class="keyword">false</span><span class="special">);</span>
- <span class="identifier">ans</span><span class="special">.</span><span class="identifier">message</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">tc1</span> <span class="special"><<</span> <span class="string">" and "</span> <span class="special"><<</span> <span class="identifier">tc2</span> <span class="special"><<</span> <span class="string">" failed"</span><span class="special">;</span>
- <span class="keyword">return</span> <span class="identifier">ans</span><span class="special">;</span>
- <span class="special">}</span>
- <span class="special">};</span>
- <span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span><span class="identifier">test3</span><span class="special">,</span>
- <span class="special">*</span> <span class="identifier">utf</span><span class="special">::</span><span class="identifier">precondition</span><span class="special">(</span><span class="identifier">if_either</span><span class="special">(</span><span class="string">"test1"</span><span class="special">,</span> <span class="string">"test2"</span><span class="special">)))</span>
- <span class="special">{</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="keyword">false</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span><span class="identifier">test4</span><span class="special">,</span>
- <span class="special">*</span> <span class="identifier">utf</span><span class="special">::</span><span class="identifier">precondition</span><span class="special">(</span><span class="identifier">if_either</span><span class="special">(</span><span class="string">"test2"</span><span class="special">,</span> <span class="string">"test3"</span><span class="special">)))</span>
- <span class="special">{</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="keyword">false</span><span class="special">);</span>
- <span class="special">}</span>
- </pre>
- </td></tr></tbody>
- </table></div>
- <div class="informaltable"><table class="table">
- <colgroup><col></colgroup>
- <thead><tr><th>
- <p>
- Output
- </p>
- </th></tr></thead>
- <tbody><tr><td>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="special">></span> <span class="identifier">decorator_08</span> <span class="special">--</span><span class="identifier">log_level</span><span class="special">=</span><span class="identifier">test_suite</span>
- <span class="identifier">Running</span> <span class="number">4</span> <span class="identifier">test</span> <span class="identifier">cases</span><span class="special">...</span>
- <span class="identifier">Entering</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"decorator_08"</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">6</span><span class="special">):</span> <span class="identifier">Entering</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test1"</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">6</span><span class="special">):</span> <span class="identifier">Leaving</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test1"</span><span class="special">;</span> <span class="identifier">testing</span> <span class="identifier">time</span><span class="special">:</span> <span class="number">1</span><span class="identifier">ms</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">11</span><span class="special">):</span> <span class="identifier">Entering</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test2"</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">13</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test2"</span><span class="special">:</span> <span class="identifier">check</span> <span class="keyword">false</span> <span class="identifier">has</span> <span class="identifier">failed</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">11</span><span class="special">):</span> <span class="identifier">Leaving</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test2"</span><span class="special">;</span> <span class="identifier">testing</span> <span class="identifier">time</span><span class="special">:</span> <span class="number">2</span><span class="identifier">ms</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">39</span><span class="special">):</span> <span class="identifier">Entering</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test3"</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">41</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test3"</span><span class="special">:</span> <span class="identifier">check</span> <span class="keyword">false</span> <span class="identifier">has</span> <span class="identifier">failed</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">39</span><span class="special">):</span> <span class="identifier">Leaving</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test3"</span><span class="special">;</span> <span class="identifier">testing</span> <span class="identifier">time</span><span class="special">:</span> <span class="number">2</span><span class="identifier">ms</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">45</span><span class="special">):</span> <span class="identifier">Test</span> <span class="keyword">case</span> <span class="string">"test4"</span> <span class="identifier">is</span> <span class="identifier">skipped</span> <span class="identifier">because</span> <span class="identifier">test2</span> <span class="keyword">and</span> <span class="identifier">test3</span> <span class="identifier">failed</span>
- <span class="identifier">Leaving</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"decorator_08"</span><span class="special">;</span> <span class="identifier">testing</span> <span class="identifier">time</span><span class="special">:</span> <span class="number">16</span><span class="identifier">ms</span>
- <span class="special">***</span> <span class="number">2</span> <span class="identifier">failures</span> <span class="identifier">are</span> <span class="identifier">detected</span> <span class="identifier">in</span> <span class="identifier">the</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"decorator_08"</span>
- </pre>
- </td></tr></tbody>
- </table></div>
- <p>
- In the example above, the user defined a custom predicate <code class="computeroutput"><span class="identifier">if_either</span></code>
- that evaluates to <code class="computeroutput"><span class="keyword">true</span></code> if at
- least one of the two specified tests passed. (It assumes that the tests are
- registered in the specific order.)
- </p>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- Test case <code class="computeroutput"><span class="identifier">test3</span></code> has a
- precondition that at either <code class="computeroutput"><span class="identifier">test1</span></code>
- or <code class="computeroutput"><span class="identifier">test2</span></code> passed. The
- precondition is satisfied, therefore <code class="computeroutput"><span class="identifier">test3</span></code>
- is run (and fails),
- </li>
- <li class="listitem">
- test case <code class="computeroutput"><span class="identifier">test4</span></code> has a
- precondition that either <code class="computeroutput"><span class="identifier">test2</span></code>
- or <code class="computeroutput"><span class="identifier">test3</span></code> passed. Since
- they both failed, the precondition is not satisfied, therefore <code class="computeroutput"><span class="identifier">test4</span></code> is skipped.
- </li>
- </ul></div>
- <div class="note"><table border="0" summary="Note">
- <tr>
- <td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../doc/src/images/note.png"></td>
- <th align="left">Note</th>
- </tr>
- <tr><td align="left" valign="top"><p>
- A <a class="link" href="../utf_reference/test_org_reference/decorator_precondition.html" title="precondition (decorator)"><code class="computeroutput"><span class="identifier">precondition</span></code></a> that evaluates to
- <code class="computeroutput"><span class="keyword">false</span></code> does not yield an error
- and does not fail the attached unit test. However the <span class="emphasis"><em>Unit Test
- Framework</em></span> returns an error if the test tree is empty (see <a class="link" href="test_tree/test_tree_content.html" title="Test tree content">this
- section</a> for more details).
- </p></td></tr>
- </table></div>
- </div>
- <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
- <td align="left"></td>
- <td align="right"><div class="copyright-footer">Copyright © 2001-2019 Boost.Test
- contributors<p>
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
- </p>
- </div></td>
- </tr></table>
- <hr>
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