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26 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
27 <a name="boost_test.runtime_config"></a><a class="link" href="runtime_config.html" title="Runtime parameters">Runtime parameters</a>
28 </h2></div></div></div>
29 <div class="toc"><dl class="toc">
30 <dt><span class="section"><a href="runtime_config/test_unit_filtering.html">Test unit
31       filtering</a></span></dt>
32 <dt><span class="section"><a href="runtime_config/custom_command_line_arguments.html">Custom
33       command line arguments</a></span></dt>
34 <dt><span class="section"><a href="runtime_config/summary.html">Summary of run-time
35       parameters</a></span></dt>
36 </dl></div>
37 <h5>
38 <a name="boost_test.runtime_config.h0"></a>
39       <span class="phrase"><a name="boost_test.runtime_config.boost_test_runtime_parameters"></a></span><a class="link" href="runtime_config.html#boost_test.runtime_config.boost_test_runtime_parameters">Boost.Test
40       runtime parameters</a>
41     </h5>
42 <p>
43       The <span class="emphasis"><em>Unit Test Framework</em></span> supports multiple parameters that
44       affect test module execution. To set the parameter's value you can either use
45       a runtime configuration subsystem interface from within the test module initialization
46       function or you can specify the value at runtime during test module invocation.
47     </p>
48 <p>
49       The <span class="emphasis"><em>Unit Test Framework</em></span> provides two ways to set a parameter
50       at runtime: by specifying a command line argument and by setting an environment
51       variable. The command line argument always overrides the corresponding environment
52       variable.
53     </p>
54 <p>
55       During test module initialization the <span class="emphasis"><em>Unit Test Framework</em></span>
56       parses the command line and excludes all parameters that belong to it and their
57       values from the argument list. The rest of command line is forwarded to the
58       test module initialization function supplied by you. The command line argument
59       format expected by the <span class="emphasis"><em>Unit Test Framework</em></span> is:
60     </p>
61 <pre class="programlisting">  --&lt;command_line_argument_name&gt;=&lt;argument_value&gt;
62 </pre>
63 <p>
64       The command line argument name is case sensitive. It is required to match exactly
65       the name in parameter specification. There should not be any spaces between
66       '=' and either command line argument name or argument value.
67     </p>
68 <p>
69       The corresponding environment variable name is also case sensitive and is required
70       to exactly match the name in the parameter specification.
71     </p>
72 <p>
73       All information about the currently supported parameters of the <span class="emphasis"><em>Unit
74       Test Framework</em></span> is summarized in the section <a class="link" href="runtime_config/summary.html" title="Summary of run-time parameters">boost_test.runtime_config.summary</a>.
75     </p>
76 <h5>
77 <a name="boost_test.runtime_config.h1"></a>
78       <span class="phrase"><a name="boost_test.runtime_config.test_filtering"></a></span><a class="link" href="runtime_config.html#boost_test.runtime_config.test_filtering">Test
79       filtering</a>
80     </h5>
81 <p>
82       The <span class="emphasis"><em>Unit Test Framework</em></span> provides an extensive filtering
83       facility making it easy to run a specific test or a subset of tests. The <a class="link" href="runtime_config/test_unit_filtering.html" title="Test unit filtering">section on filtering</a>
84       gives all the details for the command line interface.
85     </p>
86 <p>
87       Additionally, <a class="link" href="tests_organization/test_tree/test_suite.html" title="Test suite">test-suites</a>
88       and <a class="link" href="tests_organization/tests_grouping.html" title="Grouping tests into logical units by labels">labels</a>
89       may be used in order to construct subset of tests in an efficient and easy
90       way, while decorators (eg. <a class="link" href="utf_reference/test_org_reference/decorator_enabled.html" title="enabled / disabled (decorator)"><code class="computeroutput"><span class="identifier">disabled</span></code></a>, <a class="link" href="utf_reference/test_org_reference/decorator_precondition.html" title="precondition (decorator)"><code class="computeroutput"><span class="identifier">precondition</span></code></a>) can be used to set the
91       default run status of a test case.
92     </p>
93 <h5>
94 <a name="boost_test.runtime_config.h2"></a>
95       <span class="phrase"><a name="boost_test.runtime_config.custom_runtime_parameters"></a></span><a class="link" href="runtime_config.html#boost_test.runtime_config.custom_runtime_parameters">Custom
96       runtime parameters</a>
97     </h5>
98 <p>
99       It is possible to extend further the command line interface by providing a
100       custom command line interpretation logic. There are several ways on how to
101       integrate this logic in the <span class="emphasis"><em>Unit Test Framework</em></span> and this
102       is explained in details in the section <a class="link" href="runtime_config/custom_command_line_arguments.html" title="Custom command line arguments">Custom
103       runtime parameters</a>.
104     </p>
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