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+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>33.4. TAP Tests</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="regress-variant.html" title="33.3. Variant Comparison Files" /><link rel="next" href="regress-coverage.html" title="33.5. Test Coverage Examination" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">33.4. TAP Tests</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="regress-variant.html" title="33.3. Variant Comparison Files">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="regress.html" title="Chapter 33. Regression Tests">Up</a></td><th width="60%" align="center">Chapter 33. Regression Tests</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 15.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="regress-coverage.html" title="33.5. Test Coverage Examination">Next</a></td></tr></table><hr /></div><div class="sect1" id="REGRESS-TAP"><div class="titlepage"><div><div><h2 class="title" style="clear: both">33.4. TAP Tests</h2></div></div></div><p>
+    Various tests, particularly the client program tests
+    under <code class="filename">src/bin</code>, use the Perl TAP tools and are run
+    using the Perl testing program <code class="command">prove</code>.  You can pass
+    command-line options to <code class="command">prove</code> by setting
+    the <code class="command">make</code> variable <code class="varname">PROVE_FLAGS</code>, for example:
+</p><pre class="programlisting">
+make -C src/bin check PROVE_FLAGS='--timer'
+</pre><p>
+    See the manual page of <code class="command">prove</code> for more information.
+   </p><p>
+    The <code class="command">make</code> variable <code class="varname">PROVE_TESTS</code>
+    can be used to define a whitespace-separated list of paths relative
+    to the <code class="filename">Makefile</code> invoking <code class="command">prove</code>
+    to run the specified subset of tests instead of the default
+    <code class="filename">t/*.pl</code>.  For example:
+</p><pre class="programlisting">
+make check PROVE_TESTS='t/001_test1.pl t/003_test3.pl'
+</pre><p>
+   </p><p>
+    The TAP tests require the Perl module <code class="literal">IPC::Run</code>.
+    This module is available from CPAN or an operating system package.
+    They also require <span class="productname">PostgreSQL</span> to be
+    configured with the option <code class="option">--enable-tap-tests</code>.
+   </p><p>
+    Generically speaking, the TAP tests will test the executables in a
+    previously-installed installation tree if you say <code class="literal">make
+    installcheck</code>, or will build a new local installation tree from
+    current sources if you say <code class="literal">make check</code>.  In either
+    case they will initialize a local instance (data directory) and
+    transiently run a server in it.  Some of these tests run more than one
+    server.  Thus, these tests can be fairly resource-intensive.
+   </p><p>
+    It's important to realize that the TAP tests will start test server(s)
+    even when you say <code class="literal">make installcheck</code>; this is unlike
+    the traditional non-TAP testing infrastructure, which expects to use an
+    already-running test server in that case.  Some PostgreSQL
+    subdirectories contain both traditional-style and TAP-style tests,
+    meaning that <code class="literal">make installcheck</code> will produce a mix of
+    results from temporary servers and the already-running test server.
+   </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="regress-variant.html" title="33.3. Variant Comparison Files">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="regress.html" title="Chapter 33. Regression Tests">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="regress-coverage.html" title="33.5. Test Coverage Examination">Next</a></td></tr><tr><td width="40%" align="left" valign="top">33.3. Variant Comparison Files </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.5 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 33.5. Test Coverage Examination</td></tr></table></div></body></html>
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