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<div class="titlepage"><div><div><h3 class="title">
<a name="boost_test.test_output.log_formats"></a><a class="link" href="log_formats.html" title="Log formats">Log formats</a>
</h3></div></div></div>
<div class="toc"><dl class="toc">
<dt><span class="section"><a href="log_formats/test_log_output.html">Test
        log output</a></span></dt>
<dt><span class="section"><a href="log_formats/log_human_readable_format.html">HRF:
        Human readable log format</a></span></dt>
<dt><span class="section"><a href="log_formats/log_xml_format.html">XML
        log format</a></span></dt>
<dt><span class="section"><a href="log_formats/log_junit_format.html">JUNIT
        log format</a></span></dt>
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<p>
        The <span class="emphasis"><em>Unit Test Framework</em></span> supports several log formats:
      </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
            <a class="link" href="log_formats/log_human_readable_format.html" title="HRF: Human readable log format">HRF</a>:
            human readable format
          </li>
<li class="listitem">
            <a class="link" href="log_formats/log_xml_format.html" title="XML log format">XML</a>:
            an machine interpretable log format
          </li>
<li class="listitem">
            <a class="link" href="log_formats/log_junit_format.html" title="JUNIT log format">JUNIT</a>:
            a standardized log format understandable by automated tools such as Continuous
            Builds
          </li>
</ul></div>
<h5>
<a name="boost_test.test_output.log_formats.h0"></a>
        <span class="phrase"><a name="boost_test.test_output.log_formats.design"></a></span><a class="link" href="log_formats.html#boost_test.test_output.log_formats.design">Design</a>
      </h5>
<p>
        The following functionalities are supported by the logging framework:
      </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
            each logger manages its own log level. The rationale is that some log
            format are meant for automated processing, and by design need to carry
            all the information that will later be digested by a visualization tool.
          </li>
<li class="listitem">
            several log format may be active at the same time. The rationale is that
            the user might want to see a non-exhaustive log in his terminal using
            a human friendly format, while having a detailed full log in a file with
            a format dedicated to automated processing.
          </li>
<li class="listitem">
            each logger <span class="emphasis"><em>indicates</em></span> its default output stream.
            some logger may prefer to output to one of the standard stream while
            other may prefer output to a file.
          </li>
</ul></div>
<div class="note"><table border="0" summary="Note">
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<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
          The logger indicates the default output stream in case the default should
          be used.
        </p></td></tr>
</table></div>
<h5>
<a name="boost_test.test_output.log_formats.h1"></a>
        <span class="phrase"><a name="boost_test.test_output.log_formats.defaults"></a></span><a class="link" href="log_formats.html#boost_test.test_output.log_formats.defaults">Defaults</a>
      </h5>
<p>
        By default the active log level threshold is set to
      </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
            <a class="link" href="log_formats/test_log_output.html" title="Test log output">"non
            fatal error messages"</a> and the test log output is generated
            in <a class="link" href="log_formats/log_human_readable_format.html" title="HRF: Human readable log format">human
            readable format</a>.
          </li>
<li class="listitem">
            <a class="link" href="log_formats/test_log_output.html" title="Test log output">"general
            information"</a> for <a class="link" href="log_formats/log_junit_format.html" title="JUNIT log format">JUNIT</a>
            log format
          </li>
</ul></div>
<p>
        The active log level threshold and the output format can be configured at
        runtime during a test module invocation and at compile time from within a
        test module using the <a class="link" href="logging_api.html" title="Logging API">test
        log public interfaces</a>. The behavior is logger specific though.
      </p>
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