1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>BOOST_<level>_NO_THROW</title> 5<link rel="stylesheet" href="../../../boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../../index.html" title="Boost.Test"> 8<link rel="up" href="../testing_tool_ref.html" title="Reference API for writing tests"> 9<link rel="prev" href="assertion_boost_level_predicate.html" title="BOOST_<level>_PREDICATE"> 10<link rel="next" href="assertion_boost_level_throw.html" title="BOOST_<level>_THROW"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="assertion_boost_level_predicate.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../testing_tool_ref.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="assertion_boost_level_throw.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h4 class="title"> 27<a name="boost_test.utf_reference.testing_tool_ref.assertion_boost_level_no_throw"></a><a class="link" href="assertion_boost_level_no_throw.html" title="BOOST_<level>_NO_THROW"><code class="computeroutput"><span class="identifier">BOOST_</span><span class="special"><</span><span class="identifier">level</span><span class="special">></span><span class="identifier">_NO_THROW</span></code></a> 28</h4></div></div></div> 29<pre class="programlisting"><span class="identifier">BOOST_WARN_NO_THROW</span><span class="special">(</span><span class="identifier">expression</span><span class="special">);</span> 30<span class="identifier">BOOST_CHECK_NO_THROW</span><span class="special">(</span><span class="identifier">expression</span><span class="special">);</span> 31<span class="identifier">BOOST_REQUIRE_NO_THROW</span><span class="special">(</span><span class="identifier">expression</span><span class="special">);</span> 32</pre> 33<p> 34 These assertions validate that the execution of <code class="computeroutput"><span class="identifier">expression</span></code> 35 does not throw any exception. To that extent, all possible exception are 36 caught by assertion itself and no exception is propagated to the test body. 37 </p> 38<div class="tip"><table border="0" summary="Tip"> 39<tr> 40<td rowspan="2" align="center" valign="top" width="25"><img alt="[Tip]" src="../../../../../../../doc/src/images/tip.png"></td> 41<th align="left">Tip</th> 42</tr> 43<tr><td align="left" valign="top"><p> 44 It is possible to test for complex expressions with the use of constructs 45 such as <code class="computeroutput"><span class="keyword">do</span> <span class="special">{</span> 46 <span class="comment">/* ... */</span><span class="special">}</span> 47 <span class="keyword">while</span><span class="special">(</span><span class="number">0</span><span class="special">)</span></code> block. 48 </p></td></tr> 49</table></div> 50<h6> 51<a name="boost_test.utf_reference.testing_tool_ref.assertion_boost_level_no_throw.h0"></a> 52 <span class="phrase"><a name="boost_test.utf_reference.testing_tool_ref.assertion_boost_level_no_throw.example_descr"></a></span><a class="link" href="assertion_boost_level_no_throw.html#boost_test.utf_reference.testing_tool_ref.assertion_boost_level_no_throw.example_descr">Example: 53 BOOST_<level>_NO_THROW usage</a> 54 </h6> 55<div class="informaltable"><table class="table"> 56<colgroup><col></colgroup> 57<thead><tr><th> 58 <p> 59 Code 60 </p> 61 </th></tr></thead> 62<tbody><tr><td> 63<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">example</span> 64<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> 65 66<span class="keyword">class</span> <span class="identifier">my_exception</span><span class="special">{};</span> 67 68<span class="keyword">void</span> <span class="identifier">some_func</span><span class="special">(</span> <span class="keyword">int</span> <span class="identifier">i</span> <span class="special">)</span> <span class="special">{</span> <span class="keyword">if</span><span class="special">(</span> <span class="identifier">i</span><span class="special"><</span><span class="number">0</span> <span class="special">)</span> <span class="keyword">throw</span> <span class="identifier">my_exception</span><span class="special">();</span> <span class="special">}</span> 69 70<span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span> <span class="identifier">test</span> <span class="special">)</span> 71<span class="special">{</span> 72 <span class="identifier">BOOST_CHECK_NO_THROW</span><span class="special">(</span> <span class="identifier">some_func</span><span class="special">(-</span><span class="number">1</span><span class="special">)</span> <span class="special">);</span> 73 <span class="identifier">BOOST_CHECK_NO_THROW</span><span class="special">(</span> 74 <span class="keyword">do</span> <span class="special">{</span> 75 <span class="keyword">int</span> <span class="identifier">i</span><span class="special">(-</span><span class="number">2</span><span class="special">);</span> 76 <span class="identifier">some_func</span><span class="special">(</span><span class="identifier">i</span><span class="special">);</span> 77 <span class="special">}</span> <span class="keyword">while</span><span class="special">(</span><span class="number">0</span><span class="special">)</span> 78 <span class="special">);</span> 79<span class="special">}</span> 80</pre> 81 </td></tr></tbody> 82</table></div> 83<div class="informaltable"><table class="table"> 84<colgroup><col></colgroup> 85<thead><tr><th> 86 <p> 87 Output 88 </p> 89 </th></tr></thead> 90<tbody><tr><td> 91<pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="special">></span> <span class="identifier">example</span> 92<span class="identifier">Running</span> <span class="number">1</span> <span class="identifier">test</span> <span class="keyword">case</span><span class="special">...</span> 93<span class="special">../</span><span class="identifier">doc</span><span class="special">/</span><span class="identifier">examples</span><span class="special">/</span><span class="identifier">exception_nothrow</span><span class="special">.</span><span class="identifier">run</span><span class="special">-</span><span class="identifier">fail</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"</span><span class="special">:</span> <span class="identifier">exception</span> <span class="identifier">thrown</span> <span class="identifier">by</span> <span class="identifier">some_func</span><span class="special">(-</span><span class="number">1</span><span class="special">)</span> 94<span class="special">../</span><span class="identifier">doc</span><span class="special">/</span><span class="identifier">examples</span><span class="special">/</span><span class="identifier">exception_nothrow</span><span class="special">.</span><span class="identifier">run</span><span class="special">-</span><span class="identifier">fail</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">:</span><span class="number">24</span><span class="special">:</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test"</span><span class="special">:</span> <span class="identifier">exception</span> <span class="identifier">thrown</span> <span class="identifier">by</span> <span class="keyword">do</span> <span class="special">{</span> <span class="keyword">int</span> <span class="identifier">i</span><span class="special">(-</span><span class="number">2</span><span class="special">);</span> <span class="identifier">some_func</span><span class="special">(</span><span class="identifier">i</span><span class="special">);</span> 95 <span class="special">}</span> <span class="keyword">while</span><span class="special">(</span><span class="number">0</span><span class="special">)</span> 96 97<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">"example"</span> 98</pre> 99 </td></tr></tbody> 100</table></div> 101<p> 102 See also: 103 </p> 104<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 105<li class="listitem"> 106 <a class="link" href="assertion_boost_level_throw.html" title="BOOST_<level>_THROW"><code class="computeroutput"><span class="identifier">BOOST_</span><span class="special"><</span><span class="identifier">level</span><span class="special">></span><span class="identifier">_THROW</span></code></a> 107 </li> 108<li class="listitem"> 109 <a class="link" href="../../testing_tools/exception_correctness.html" title="Exception correctness">Exception 110 correctness</a> section 111 </li> 112</ul></div> 113</div> 114<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 115<td align="left"></td> 116<td align="right"><div class="copyright-footer">Copyright © 2001-2020 Boost.Test contributors<p> 117 Distributed under the Boost Software License, Version 1.0. (See accompanying 118 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>) 119 </p> 120</div></td> 121</tr></table> 122<hr> 123<div class="spirit-nav"> 124<a accesskey="p" href="assertion_boost_level_predicate.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../testing_tool_ref.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="assertion_boost_level_throw.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 125</div> 126</body> 127</html> 128
