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- <div class="titlepage"><div><div><h3 class="title">
- <a name="boost_test.testing_tools.boost_test_universal_macro"></a><a class="link" href="boost_test_universal_macro.html" title="BOOST_TEST: universal and general purpose assertions">BOOST_TEST:
- universal and general purpose assertions</a>
- </h3></div></div></div>
- <p>
- The <span class="emphasis"><em>Unit Test Framework</em></span> provides an almost unique interface
- to a great range of test-case scenarios, through the <a class="link" href="../utf_reference/testing_tool_ref/assertion_boost_test_universal_macro.html" title="BOOST_TEST"><code class="computeroutput"><span class="identifier">BOOST_TEST</span></code></a> macro. The general form
- of <code class="computeroutput"><span class="identifier">BOOST_TEST</span></code> is the following:
- </p>
- <pre class="programlisting"><span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="identifier">statement</span><span class="special">);</span>
- <span class="identifier">BOOST_TEST_</span><span class="special"><</span><span class="identifier">level</span><span class="special">>(</span><span class="identifier">statement</span><span class="special">,</span> <span class="identifier">optional_modifiers</span><span class="special">)</span>
- </pre>
- <p>
- An example of use might be the following:
- </p>
- <h6>
- <a name="boost_test.testing_tools.boost_test_universal_macro.h0"></a>
- <span class="phrase"><a name="boost_test.testing_tools.boost_test_universal_macro.example_descr"></a></span><a class="link" href="boost_test_universal_macro.html#boost_test.testing_tools.boost_test_universal_macro.example_descr">Example:
- BOOST_TEST overview</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">boost_test_macro_overview</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="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span> <span class="identifier">test_macro_overview</span> <span class="special">)</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="keyword">int</span> <span class="identifier">a</span> <span class="special">=</span> <span class="number">1</span><span class="special">;</span>
- <span class="keyword">int</span> <span class="identifier">b</span> <span class="special">=</span> <span class="number">2</span><span class="special">;</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="identifier">a</span> <span class="special">!=</span> <span class="identifier">b</span> <span class="special">-</span> <span class="number">1</span><span class="special">);</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="identifier">a</span> <span class="special">+</span> <span class="number">1</span> <span class="special"><</span> <span class="identifier">b</span><span class="special">);</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="identifier">b</span> <span class="special">-</span><span class="number">1</span> <span class="special">></span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">a</span> <span class="special"><<</span> <span class="string">" < "</span> <span class="special"><<</span> <span class="identifier">b</span> <span class="special">-</span> <span class="number">1</span> <span class="special"><<</span> <span class="string">" does not hold"</span><span class="special">);</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="identifier">a</span> <span class="special">==</span> <span class="identifier">b</span><span class="special">,</span> <span class="identifier">tt</span><span class="special">::</span><span class="identifier">bitwise</span><span class="special">());</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="identifier">a</span> <span class="special">+</span> <span class="number">0.1</span> <span class="special">==</span> <span class="identifier">b</span> <span class="special">-</span> <span class="number">0.8</span><span class="special">,</span> <span class="identifier">tt</span><span class="special">::</span><span class="identifier">tolerance</span><span class="special">(</span><span class="number">0.01</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="special">./</span><span class="identifier">boost_test_macro_overview</span> <span class="special">--</span><span class="identifier">log_level</span><span class="special">=</span><span class="identifier">all</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">Entering</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"boost_test_macro_overview"</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">:</span><span class="number">12</span><span class="special">:</span> <span class="identifier">Entering</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test_macro_overview"</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">:</span><span class="number">17</span><span class="special">:</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test_macro_overview"</span><span class="special">:</span> <span class="identifier">check</span> <span class="identifier">a</span> <span class="special">!=</span> <span class="identifier">b</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="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">:</span><span class="number">18</span><span class="special">:</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test_macro_overview"</span><span class="special">:</span> <span class="identifier">check</span> <span class="identifier">a</span> <span class="special">+</span> <span class="number">1</span> <span class="special"><</span> <span class="identifier">b</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="number">2</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">19</span><span class="special">:</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test_macro_overview"</span><span class="special">:</span> <span class="number">1</span> <span class="special"><</span> <span class="number">1</span> <span class="identifier">does</span> <span class="keyword">not</span> <span class="identifier">hold</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">:</span><span class="number">20</span><span class="special">:</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test_macro_overview"</span><span class="special">:</span> <span class="identifier">check</span> <span class="identifier">a</span> <span class="special">==</span> <span class="identifier">b</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">2</span><span class="special">].</span> <span class="identifier">Bitwise</span> <span class="identifier">comparison</span> <span class="identifier">failed</span>
- <span class="identifier">Mismatch</span> <span class="identifier">at</span> <span class="identifier">position</span> <span class="number">0</span>
- <span class="identifier">Mismatch</span> <span class="identifier">at</span> <span class="identifier">position</span> <span class="number">1</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">:</span><span class="number">21</span><span class="special">:</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test_macro_overview"</span><span class="special">:</span> <span class="identifier">check</span> <span class="identifier">a</span> <span class="special">+</span> <span class="number">0.1</span> <span class="special">==</span> <span class="identifier">b</span> <span class="special">-</span> <span class="number">0.8</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">0.10000000000000001</span> <span class="special">!=</span> <span class="number">1.2</span><span class="special">].</span> <span class="identifier">Relative</span> <span class="identifier">difference</span> <span class="identifier">exceeds</span> <span class="identifier">tolerance</span> <span class="special">[</span><span class="number">0.0909091</span> <span class="special">></span> <span class="number">0.01</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">12</span><span class="special">:</span> <span class="identifier">Leaving</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test_macro_overview"</span><span class="special">;</span> <span class="identifier">testing</span> <span class="identifier">time</span><span class="special">:</span> <span class="number">380u</span><span class="identifier">s</span>
- <span class="identifier">Leaving</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"boost_test_macro_overview"</span><span class="special">;</span> <span class="identifier">testing</span> <span class="identifier">time</span><span class="special">:</span> <span class="number">459u</span><span class="identifier">s</span>
- <span class="special">***</span> <span class="number">5</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">"boost_test_macro_overview"</span>
- </pre>
- </td></tr></tbody>
- </table></div>
- <p>
- The major features of this tool are:
- </p>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- a great flexibility for <code class="computeroutput"><span class="identifier">statement</span></code>
- which may be almost anything: full expression composed by several operations
- are supported and handled,
- </li>
- <li class="listitem">
- an extended reporting capability in case of failure: not only <code class="computeroutput"><span class="identifier">BOOST_TEST</span></code> reports the location of
- the failure and a copy of <code class="computeroutput"><span class="identifier">statement</span></code>
- itself, but also the values of the operands that permits a rapid identification
- of the issues related to the failed assertion,
- </li>
- <li class="listitem">
- the possibility to control better the behavior or the reports of the
- checks, in particular:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- floating point comparison: the tolerance may be provided, either
- using the <code class="computeroutput"><span class="identifier">BOOST_TEST</span></code>
- directly with <code class="computeroutput"><span class="identifier">optional_modifiers</span></code>,
- or with <span class="emphasis"><em>decorators</em></span> (see <a class="link" href="extended_comparison/floating_point.html" title="Floating point comparison">here</a>
- for more details),
- </li>
- <li class="listitem">
- container/collection comparisons: different operations for comparison
- are provided out of the box for comparing collection of elements
- (default, per-element, lexicographic), with extended diagnostic
- on failures (covered in <a class="link" href="extended_comparison/collections.html" title="Collections comparison">this</a>
- section),
- </li>
- <li class="listitem">
- string comparison: C-strings operands are automatically detected
- and the comparisons are performed as if <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>
- objects were used,
- </li>
- <li class="listitem">
- optional failure message,
- </li>
- <li class="listitem">
- bitwise comparison, providing extended diagnostic in case of failure
- </li>
- </ul></div>
- </li>
- </ul></div>
- <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>
- To get all the functionalities of <code class="computeroutput"><span class="identifier">BOOST_TEST</span></code>
- family of assertions, a C++11 capable compiler is required, especially
- supporting the <code class="computeroutput"><span class="keyword">auto</span></code> and <code class="computeroutput"><span class="keyword">decltype</span></code> keywords and the variadic macros.
- The documentation focuses on these set of compilers. For compilers not
- supporting all the features of <code class="computeroutput"><span class="identifier">BOOST_TEST</span></code>,
- the macro <code class="computeroutput"><span class="identifier">BOOST_TEST_MACRO_LIMITED_SUPPORT</span></code>.
- </p></td></tr>
- </table></div>
- <a name="boost_test_statement_overloads"></a><h4>
- <a name="boost_test.testing_tools.boost_test_universal_macro.h1"></a>
- <span class="phrase"><a name="boost_test.testing_tools.boost_test_universal_macro.complex_statements"></a></span><a class="link" href="boost_test_universal_macro.html#boost_test.testing_tools.boost_test_universal_macro.complex_statements">Complex
- statements</a>
- </h4>
- <p>
- <code class="computeroutput"><span class="identifier">BOOST_TEST</span></code> provides an enhanced
- reporting capability: additional details of the failing operands and operations
- are provided in the log, as shown on the example below:
- </p>
- <h6>
- <a name="boost_test.testing_tools.boost_test_universal_macro.h2"></a>
- <span class="phrase"><a name="boost_test.testing_tools.boost_test_universal_macro.example_descr0"></a></span><a class="link" href="boost_test_universal_macro.html#boost_test.testing_tools.boost_test_universal_macro.example_descr0">Example:
- BOOST_TEST enhanced reporting</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">boost_test_macro3</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="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span> <span class="identifier">test_op_reportings</span> <span class="special">)</span>
- <span class="special">{</span>
- <span class="keyword">int</span> <span class="identifier">a</span> <span class="special">=</span> <span class="number">13</span><span class="special">,</span> <span class="identifier">b</span> <span class="special">=</span> <span class="number">12</span><span class="special">;</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="identifier">a</span> <span class="special">==</span> <span class="identifier">b</span><span class="special">);</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="identifier">a</span> <span class="special"><</span> <span class="identifier">b</span><span class="special">);</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="identifier">a</span> <span class="special">-</span> <span class="number">1</span> <span class="special"><</span> <span class="identifier">b</span><span class="special">);</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="identifier">b</span> <span class="special">></span> <span class="identifier">a</span> <span class="special">-</span> <span class="number">1</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="special">./</span><span class="identifier">boost_test_macro3</span> <span class="special">--</span><span class="identifier">log_level</span><span class="special">=</span><span class="identifier">all</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">Entering</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"boost_test_macro3"</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">12</span><span class="special">):</span> <span class="identifier">Entering</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test_op_reportings"</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">15</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test_op_reportings"</span><span class="special">:</span> <span class="identifier">check</span> <span class="identifier">a</span> <span class="special">==</span> <span class="identifier">b</span> <span class="identifier">has</span> <span class="identifier">failed</span> <span class="special">[</span><span class="number">13</span> <span class="special">!=</span> <span class="number">12</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">16</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test_op_reportings"</span><span class="special">:</span> <span class="identifier">check</span> <span class="identifier">a</span> <span class="special"><</span> <span class="identifier">b</span> <span class="identifier">has</span> <span class="identifier">failed</span> <span class="special">[</span><span class="number">13</span> <span class="special">>=</span> <span class="number">12</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">17</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test_op_reportings"</span><span class="special">:</span> <span class="identifier">check</span> <span class="identifier">a</span> <span class="special">-</span> <span class="number">1</span> <span class="special"><</span> <span class="identifier">b</span> <span class="identifier">has</span> <span class="identifier">failed</span> <span class="special">[</span><span class="number">13</span> <span class="special">-</span> <span class="number">1</span> <span class="special">>=</span> <span class="number">12</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">18</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test_op_reportings"</span><span class="special">:</span> <span class="identifier">check</span> <span class="identifier">b</span> <span class="special">></span> <span class="identifier">a</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">12</span> <span class="special"><=</span> <span class="number">12</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">12</span><span class="special">):</span> <span class="identifier">Leaving</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test_op_reportings"</span><span class="special">;</span> <span class="identifier">testing</span> <span class="identifier">time</span><span class="special">:</span> <span class="number">484u</span><span class="identifier">s</span>
- <span class="identifier">Leaving</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"boost_test_macro3"</span><span class="special">;</span> <span class="identifier">testing</span> <span class="identifier">time</span><span class="special">:</span> <span class="number">588u</span><span class="identifier">s</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">"boost_test_macro3"</span>
- </pre>
- </td></tr></tbody>
- </table></div>
- <p>
- <code class="computeroutput"><span class="identifier">BOOST_TEST</span></code> parses the <code class="computeroutput"><span class="identifier">statement</span></code> and constructs an expression
- out of it. <code class="computeroutput"><span class="identifier">statement</span></code> may
- be a complex expressions containing almost any of the overloadable operators
- in C++:
- </p>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Class of operation
- </p>
- </th>
- <th>
- <p>
- operators
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- binary comparisons
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="special">==</span></code>, <code class="computeroutput"><span class="special">!=</span></code>, <code class="computeroutput"><span class="special"><</span></code>,
- <code class="computeroutput"><span class="special">></span></code>, <code class="computeroutput"><span class="special"><=</span></code>, <code class="computeroutput"><span class="special">>=</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- arithmetic compositions
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="special">+</span></code>, <code class="computeroutput"><span class="special">-</span></code>,
- <code class="computeroutput"><span class="special">*</span></code>, <code class="computeroutput"><span class="special">/</span></code>,
- <code class="computeroutput"><span class="special">%</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- bitwise compositions
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="special">|</span></code>, <code class="computeroutput"><span class="special">&</span></code>,
- <code class="computeroutput"><span class="special">^</span></code>, <code class="computeroutput"><span class="special"><<</span></code>,
- <code class="computeroutput"><span class="special">>></span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- assignments
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="special">=</span></code>, <code class="computeroutput"><span class="special">+=</span></code>,
- <code class="computeroutput"><span class="special">-=</span></code>, <code class="computeroutput"><span class="special">*=</span></code>, <code class="computeroutput"><span class="special">/=</span></code>,
- <code class="computeroutput"><span class="special">%=</span></code>, <code class="computeroutput"><span class="special"><<=</span></code>, <code class="computeroutput"><span class="special">>>=</span></code>,
- <code class="computeroutput"><span class="special">&=</span></code>, <code class="computeroutput"><span class="special">^=</span></code>, <code class="computeroutput"><span class="special">|=</span></code>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <p>
- <code class="computeroutput"><span class="identifier">statement</span></code> is evaluated and
- cast to <code class="computeroutput"><span class="keyword">bool</span></code>, as if it would
- appear as argument to an <code class="computeroutput"><span class="keyword">if</span></code>
- statement: this is the result of the assertion
- </p>
- <h4>
- <a name="boost_test.testing_tools.boost_test_universal_macro.h3"></a>
- <span class="phrase"><a name="boost_test.testing_tools.boost_test_universal_macro.uniform_reporting"></a></span><a class="link" href="boost_test_universal_macro.html#boost_test.testing_tools.boost_test_universal_macro.uniform_reporting">Uniform
- reporting</a>
- </h4>
- <p>
- This tool is provided in three variants corresponding to the corresponding
- <a class="link" href="tools_assertion_severity_level.html" title="Assertion severity level">severity
- levels</a>. These three levels of assertions are reported into the test
- log and output, as described in details in the section. The granularity of
- the report depends on the current <a class="link" href="../utf_reference/rt_param_reference/log_level.html" title="log_level">log
- level</a> and <a class="link" href="../utf_reference/rt_param_reference/report_level.html" title="report_level">report
- level</a>.
- </p>
- <a name="boost_test_statement_limitations"></a><h4>
- <a name="boost_test.testing_tools.boost_test_universal_macro.h4"></a>
- <span class="phrase"><a name="boost_test.testing_tools.boost_test_universal_macro.limitations_workaround"></a></span><a class="link" href="boost_test_universal_macro.html#boost_test.testing_tools.boost_test_universal_macro.limitations_workaround">Limitations
- & workaround</a>
- </h4>
- <p>
- There are a few constructions that are however unsupported, but adding an
- extra bracket usually solves that:
- </p>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- statements containing ternary conditions: those statement should be surrounded
- by parenthesis as they cannot be overloaded
- </li>
- <li class="listitem">
- statements containing commas: those statements will be intercepted by
- the preprocessor
- </li>
- <li class="listitem">
- <p class="simpara">
- compound statements containing any logical composition <code class="computeroutput"><span class="special">||</span></code>, <code class="computeroutput"><span class="special">&&</span></code>.
- Those are disabled intentionally and should be surrounded by parenthesis
- </p>
- <pre class="programlisting"><span class="identifier">BOOST_TEST</span><span class="special">((</span><span class="keyword">true</span> <span class="special">||</span> <span class="keyword">false</span><span class="special">));</span>
- </pre>
- <p class="simpara">
- The full details are given in <a class="link" href="internal_details.html" title="BOOST_TEST: details on expressions">this
- section</a>.
- </p>
- </li>
- </ul></div>
- <h6>
- <a name="boost_test.testing_tools.boost_test_universal_macro.h5"></a>
- <span class="phrase"><a name="boost_test.testing_tools.boost_test_universal_macro.example_descr1"></a></span><a class="link" href="boost_test_universal_macro.html#boost_test.testing_tools.boost_test_universal_macro.example_descr1">Example:
- BOOST_TEST limitation and workaround</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">boost_test_macro_workaround</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="preprocessor">#include</span> <span class="special"><</span><span class="identifier">sstream</span><span class="special">></span>
- <span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span> <span class="identifier">test_logical_not_allowed</span> <span class="special">)</span>
- <span class="special">{</span>
- <span class="comment">// Boost Unit Test Framework prevents compilation of</span>
- <span class="comment">// BOOST_TEST(true && true);</span>
- <span class="identifier">BOOST_TEST</span><span class="special">((</span><span class="keyword">true</span> <span class="special">&&</span> <span class="keyword">true</span><span class="special">));</span> <span class="comment">// with extra brackets, it works as expected</span>
- <span class="special">}</span>
- <span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span> <span class="identifier">test_ternary</span> <span class="special">)</span>
- <span class="special">{</span>
- <span class="keyword">int</span> <span class="identifier">a</span> <span class="special">=</span> <span class="number">1</span><span class="special">;</span>
- <span class="keyword">int</span> <span class="identifier">b</span> <span class="special">=</span> <span class="number">2</span><span class="special">;</span>
- <span class="comment">// Boost Unit Test Framework prevents compilation of</span>
- <span class="comment">// BOOST_TEST(a == b ? true : false);</span>
- <span class="identifier">BOOST_TEST</span><span class="special">((</span><span class="identifier">a</span> <span class="special">+</span> <span class="number">1</span> <span class="special">==</span> <span class="identifier">b</span> <span class="special">?</span> <span class="keyword">true</span> <span class="special">:</span> <span class="keyword">false</span><span class="special">));</span> <span class="comment">// again works as expected with extra brackets</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="special">./</span><span class="identifier">boost_test_macro_workaround</span> <span class="special">--</span><span class="identifier">log_level</span><span class="special">=</span><span class="identifier">all</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">Entering</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"boost_test_macro_workaround"</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">Entering</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test_logical_not_allowed"</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">:</span><span class="number">17</span><span class="special">:</span> <span class="identifier">info</span><span class="special">:</span> <span class="identifier">check</span> <span class="special">(</span><span class="keyword">true</span> <span class="special">&&</span> <span class="keyword">true</span><span class="special">)</span> <span class="identifier">has</span> <span class="identifier">passed</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">Leaving</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test_logical_not_allowed"</span><span class="special">;</span> <span class="identifier">testing</span> <span class="identifier">time</span><span class="special">:</span> <span class="number">183u</span><span class="identifier">s</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">:</span><span class="number">20</span><span class="special">:</span> <span class="identifier">Entering</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test_ternary"</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">:</span><span class="number">26</span><span class="special">:</span> <span class="identifier">info</span><span class="special">:</span> <span class="identifier">check</span> <span class="special">(</span><span class="identifier">a</span> <span class="special">+</span> <span class="number">1</span> <span class="special">==</span> <span class="identifier">b</span> <span class="special">?</span> <span class="keyword">true</span> <span class="special">:</span> <span class="keyword">false</span><span class="special">)</span> <span class="identifier">has</span> <span class="identifier">passed</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">:</span><span class="number">20</span><span class="special">:</span> <span class="identifier">Leaving</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test_ternary"</span><span class="special">;</span> <span class="identifier">testing</span> <span class="identifier">time</span><span class="special">:</span> <span class="number">123u</span><span class="identifier">s</span>
- <span class="identifier">Leaving</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"boost_test_macro_workaround"</span><span class="special">;</span> <span class="identifier">testing</span> <span class="identifier">time</span><span class="special">:</span> <span class="number">547u</span><span class="identifier">s</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>
- </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>
- <div class="spirit-nav">
- <a accesskey="p" href="tools_assertion_severity_level.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../testing_tools.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="reports.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
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