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<div class="titlepage"><div><div><h4 class="title">
<a name="boost_test.utf_reference.test_org_reference.decorator_fixture"></a><a class="link" href="decorator_fixture.html" title="fixture (decorator)">fixture
        (decorator)</a>
</h4></div></div></div>
<pre class="programlisting"><span class="identifier">fixture</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">function</span><span class="special">&lt;</span><span class="keyword">void</span><span class="special">()&gt;&amp;</span> <span class="identifier">setup</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">function</span><span class="special">&lt;</span><span class="keyword">void</span><span class="special">()&gt;&amp;</span> <span class="identifier">teardown</span> <span class="special">=</span> <span class="special">{});</span>

<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Fx</span><span class="special">&gt;</span>
  <span class="identifier">fixture</span><span class="special">&lt;</span><span class="identifier">Fx</span><span class="special">&gt;();</span>

<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Fx</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Arg</span><span class="special">&gt;</span>
  <span class="identifier">fixture</span><span class="special">&lt;</span><span class="identifier">Fx</span><span class="special">&gt;(</span><span class="keyword">const</span> <span class="identifier">Arg</span><span class="special">&amp;</span> <span class="identifier">arg</span><span class="special">);</span>
</pre>
<p>
          Decorator <code class="computeroutput"><span class="identifier">fixture</span></code> specifies
          a pair of functions (like <code class="computeroutput"><span class="identifier">set_up</span></code>
          and <code class="computeroutput"><span class="identifier">tear_down</span></code>) to be called
          before and after the corresponding test unit. At the suite level the <code class="computeroutput"><span class="identifier">set_up</span></code> function is called once -- before
          the suite execution starts -- and <code class="computeroutput"><span class="identifier">tear_down</span></code>
          function is called once -- after the suite execution ends. It comes in
          three forms.
        </p>
<p>
          First expects two functions for set-up and tear-down (the second one can
          be skipped).
        </p>
<p>
          The second expects a <code class="computeroutput"><span class="identifier">DefaultConstructible</span></code>
          class. Its default constructor will be used as set-up function and its
          destructor as a tear-down function.
        </p>
<p>
          The third form requires a class with one-argument public constructor. Argument
          <code class="computeroutput"><span class="identifier">arg</span></code> is forwarded to the
          constructor.
        </p>
<p>
          For the second and third form, the framework detects if there is a <code class="computeroutput"><span class="identifier">setup</span></code> and/or <code class="computeroutput"><span class="identifier">teardown</span></code>
          function implemented in the class, with the same declaration as described
          in the <a class="link" href="../../tests_organization/fixtures/models.html" title="Fixture models">fixture
          model</a>. If those member function are declared, they will be called
          right after construction and just before destruction respectively.
        </p>
<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>
            There is no way to get access to the members of these fixtures from within
            the test case or test suite.
          </p></td></tr>
</table></div>
<h6>
<a name="boost_test.utf_reference.test_org_reference.decorator_fixture.h0"></a>
          <span class="phrase"><a name="boost_test.utf_reference.test_org_reference.decorator_fixture.example_descr"></a></span><a class="link" href="decorator_fixture.html#boost_test.utf_reference.test_org_reference.decorator_fixture.example_descr">Example:
          decorator fixture</a>
        </h6>
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                  <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_12</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</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">&gt;</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">struct</span> <span class="identifier">Fx</span>
<span class="special">{</span>
  <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">s</span><span class="special">;</span>
  <span class="identifier">Fx</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">s</span> <span class="special">=</span> <span class="string">""</span><span class="special">)</span> <span class="special">:</span> <span class="identifier">s</span><span class="special">(</span><span class="identifier">s</span><span class="special">)</span>
        <span class="special">{</span> <span class="identifier">BOOST_TEST_MESSAGE</span><span class="special">(</span><span class="string">"set up "</span> <span class="special">&lt;&lt;</span> <span class="identifier">s</span><span class="special">);</span> <span class="special">}</span>
  <span class="special">~</span><span class="identifier">Fx</span><span class="special">()</span> <span class="special">{</span> <span class="identifier">BOOST_TEST_MESSAGE</span><span class="special">(</span><span class="string">"tear down "</span> <span class="special">&lt;&lt;</span> <span class="identifier">s</span><span class="special">);</span> <span class="special">}</span>
<span class="special">};</span>

<span class="keyword">void</span> <span class="identifier">setup</span><span class="special">()</span> <span class="special">{</span> <span class="identifier">BOOST_TEST_MESSAGE</span><span class="special">(</span><span class="string">"set up fun"</span><span class="special">);</span> <span class="special">}</span>
<span class="keyword">void</span> <span class="identifier">teardown</span><span class="special">()</span> <span class="special">{</span> <span class="identifier">BOOST_TEST_MESSAGE</span><span class="special">(</span><span class="string">"tear down fun"</span><span class="special">);</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">fixture</span><span class="special">&lt;</span><span class="identifier">Fx</span><span class="special">&gt;(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">(</span><span class="string">"FX"</span><span class="special">))</span>
  <span class="special">*</span> <span class="identifier">utf</span><span class="special">::</span><span class="identifier">fixture</span><span class="special">&lt;</span><span class="identifier">Fx</span><span class="special">&gt;(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">(</span><span class="string">"FX2"</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">utf</span><span class="special">::</span><span class="identifier">fixture</span><span class="special">(&amp;</span><span class="identifier">setup</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">teardown</span><span class="special">))</span>
  <span class="special">{</span>
    <span class="identifier">BOOST_TEST_MESSAGE</span><span class="special">(</span><span class="string">"running test1"</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_MESSAGE</span><span class="special">(</span><span class="string">"running test2"</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_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">&gt;</span> <span class="identifier">decorator_12</span> <span class="special">--</span><span class="identifier">log_level</span><span class="special">=</span><span class="identifier">message</span>
<span class="identifier">Running</span> <span class="number">2</span> <span class="identifier">test</span> <span class="identifier">cases</span><span class="special">...</span>
<span class="identifier">set</span> <span class="identifier">up</span> <span class="identifier">FX</span>
<span class="identifier">set</span> <span class="identifier">up</span> <span class="identifier">FX2</span>
<span class="identifier">set</span> <span class="identifier">up</span> <span class="identifier">fun</span>
<span class="identifier">running</span> <span class="identifier">test1</span>
<span class="identifier">tear</span> <span class="identifier">down</span> <span class="identifier">fun</span>
<span class="identifier">running</span> <span class="identifier">test2</span>
<span class="identifier">tear</span> <span class="identifier">down</span> <span class="identifier">FX2</span>
<span class="identifier">tear</span> <span class="identifier">down</span> <span class="identifier">FX</span>

<span class="special">***</span> <span class="identifier">No</span> <span class="identifier">errors</span> <span class="identifier">detected</span>
</pre>
                </td></tr></tbody>
</table></div>
<p>
          For other ways of using fixtures, see <a class="link" href="../../tests_organization/fixtures.html" title="Fixtures">here</a>.
        </p>
</div>
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<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 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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