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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % general-entities SYSTEM "../general.ent">
%general-entities;
]>
<sect1 id="ch-preps-abouttestsuites">
<?dbhtml filename="abouttestsuites.html"?>
<title>About the Test Suites</title>
<para>Most packages provide a test suite. Running the test suite for a
newly built package is a good idea because it can provide a <quote>sanity
check</quote> indicating that everything compiled correctly. A test suite
that passes its set of checks usually proves that the package is
functioning as the developer intended. It does not, however, guarantee
that the package is totally bug free.</para>
<para>Some test suites are more important than others. For example,
the test suites for the core toolchain packages—GCC, Binutils, and
Glibc—are of the utmost importance due to their central role in a
properly functioning system. The test suites for GCC and Glibc can
take a very long time to complete, especially on slower hardware, but
are strongly recommended.</para>
<note>
<para>Running the test suites in <xref linkend="chapter-temporary-tools"/>
is impossible, since the programs are compiled with a cross-compiler,
so are not supposed to be able to run on the build host.</para>
</note>
<para>A common issue with running the test suites for Binutils and GCC
is running out of pseudo terminals (PTYs). This can result in a high
number of failing tests. This may happen for several reasons, but the
most likely cause is that the host system does not have the
<systemitem class="filesystem">devpts</systemitem> file system set up
correctly. This issue is discussed in greater detail at
<ulink url="&lfs-root;lfs/faq.html#no-ptys"/>.</para>
<para>Sometimes package test suites will fail, but for reasons which the
developers are aware of and have deemed non-critical. Consult the logs located
at <ulink url="&test-results;"/> to verify whether or not these failures are
expected. This site is valid for all tests throughout this book.</para>
</sect1>
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