1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>precondition (decorator)</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="../test_org_reference.html" title="Tests declaration and organization"> 9<link rel="prev" href="decorator_label.html" title="label (decorator)"> 10<link rel="next" href="../testing_tool_ref.html" title="Reference API for writing tests"> 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="decorator_label.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../test_org_reference.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="../testing_tool_ref.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.test_org_reference.decorator_precondition"></a><a class="link" href="decorator_precondition.html" title="precondition (decorator)">precondition 28 (decorator)</a> 29</h4></div></div></div> 30<pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">function</span><span class="special"><</span><code class="computeroutput"><a class="link" href="../../../boost/test_tools/assertion_result.html" title="Class assertion_result">test_tools::assertion_result</a></code> <span class="special">(</span><span class="identifier">test_unit_id</span><span class="special">)></span> <span class="identifier">predicate_t</span><span class="special">;</span> 31 32<span class="identifier">precondition</span><span class="special">(</span><span class="identifier">predicate_t</span> <span class="identifier">predicate</span><span class="special">);</span> 33</pre> 34<p> 35 Associates a <span class="emphasis"><em>predicate</em></span> with a test unit that will 36 determine its <a class="link" href="../../runtime_config/test_unit_filtering.html#ref_default_run_status"><span class="emphasis"><em>default 37 run status</em></span></a> at run-time. See <a class="link" href="../../tests_organization/enabling.html" title="Enabling or disabling test unit execution">here</a> 38 for more details. 39 </p> 40</div> 41<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 42<td align="left"></td> 43<td align="right"><div class="copyright-footer">Copyright © 2001-2020 Boost.Test contributors<p> 44 Distributed under the Boost Software License, Version 1.0. (See accompanying 45 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>) 46 </p> 47</div></td> 48</tr></table> 49<hr> 50<div class="spirit-nav"> 51<a accesskey="p" href="decorator_label.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../test_org_reference.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="../testing_tool_ref.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 52</div> 53</body> 54</html> 55
