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- <title>Customizing the module's initialization function</title>
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- <a name="boost_test.adv_scenarios.shared_lib_customizations.init_func"></a><a class="link" href="init_func.html" title="Customizing the module's initialization function">Customizing
- the module's initialization function</a>
- </h4></div></div></div>
- <p>
- In the shared-library variant, it is impossible to customize the initialization
- function without <a class="link" href="entry_point.html" title="Customizing the module's entry point">customizing
- the entry point</a>. We have to customize both. In one of the source
- files, you now have to define your custom entry point and <a class="link" href="../test_module_init_overview.html" title="Test module's initialization">initialization
- function</a> <code class="computeroutput"><span class="identifier">init_unit_test</span></code>;
- next invoke the default <a class="link" href="../test_module_runner_overview.html" title="Test module runner">test
- runner</a> <code class="computeroutput"><span class="identifier">unit_test_main</span></code>
- manually with <code class="computeroutput"><span class="identifier">init_unit_test</span></code>
- as argument. You <span class="emphasis"><em>do not</em></span> define <a class="link" href="../../utf_reference/link_references/link_boost_test_module_macro.html" title="BOOST_TEST_MODULE"><code class="computeroutput"><span class="identifier">BOOST_TEST_MODULE</span></code></a> in the main
- file:
- </p>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- In <span class="bold"><strong>exactly one</strong></span> file
- </p>
- </th>
- <th>
- <p>
- In all other files
- </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_DYN_LINK</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">unit_test</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="comment">// initialization function:</span>
- <span class="keyword">bool</span> <span class="identifier">init_unit_test</span><span class="special">()</span>
- <span class="special">{</span>
- <span class="keyword">return</span> <span class="keyword">true</span><span class="special">;</span>
- <span class="special">}</span>
- <span class="comment">// entry point:</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">argc</span><span class="special">,</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">argv</span><span class="special">[])</span>
- <span class="special">{</span>
- <span class="keyword">return</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">unit_test</span><span class="special">::</span><span class="identifier">unit_test_main</span><span class="special">(</span> <span class="special">&</span><span class="identifier">init_unit_test</span><span class="special">,</span> <span class="identifier">argc</span><span class="special">,</span> <span class="identifier">argv</span> <span class="special">);</span>
- <span class="special">}</span>
- </pre>
- </td>
- <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_DYN_LINK</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">unit_test</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="comment">//</span>
- <span class="comment">// test cases</span>
- <span class="comment">//</span>
- <span class="comment">//</span>
- <span class="comment">// test cases</span>
- <span class="comment">//</span>
- <span class="comment">//</span>
- <span class="comment">// test cases</span>
- <span class="comment">//</span>
- </pre>
- </td>
- </tr></tbody>
- </table></div>
- <p>
- For reporting errors that may occur during the initialization,
- </p>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- either you return <code class="computeroutput"><span class="keyword">false</span></code>
- (valid only for the new API only, see <a class="link" href="../../utf_reference/link_references/link_boost_test_alternative_init_macro.html" title="BOOST_TEST_ALTERNATIVE_INIT_API"><code class="computeroutput"><span class="identifier">BOOST_TEST_ALTERNATIVE_INIT_API</span></code></a>)
- </li>
- <li class="listitem">
- or you raise an exception such as <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">runtime_error</span></code>
- or <code class="computeroutput"><a class="link" href="../../../boost/unit_test/framework/setup_error.html" title="Struct setup_error">boost::unit_test::framework::setup_error</a></code>
- </li>
- </ul></div>
- <p>
- An error reported in this function aborts the execution of the test module.
- </p>
- </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>)
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