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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-16 19:46:48 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-16 19:46:48 +0000
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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>33.1. Running the 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.html" title="Chapter 33. Regression Tests" /><link rel="next" href="regress-evaluation.html" title="33.2. Test Evaluation" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">33.1. Running the Tests</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="regress.html" title="Chapter 33. Regression Tests">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 15.4 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="regress-evaluation.html" title="33.2. Test Evaluation">Next</a></td></tr></table><hr /></div><div class="sect1" id="REGRESS-RUN"><div class="titlepage"><div><div><h2 class="title" style="clear: both">33.1. Running the Tests</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="regress-run.html#id-1.6.20.5.3">33.1.1. Running the Tests Against a Temporary Installation</a></span></dt><dt><span class="sect2"><a href="regress-run.html#id-1.6.20.5.4">33.1.2. Running the Tests Against an Existing Installation</a></span></dt><dt><span class="sect2"><a href="regress-run.html#id-1.6.20.5.5">33.1.3. Additional Test Suites</a></span></dt><dt><span class="sect2"><a href="regress-run.html#id-1.6.20.5.6">33.1.4. Locale and Encoding</a></span></dt><dt><span class="sect2"><a href="regress-run.html#id-1.6.20.5.7">33.1.5. Custom Server Settings</a></span></dt><dt><span class="sect2"><a href="regress-run.html#id-1.6.20.5.8">33.1.6. Extra Tests</a></span></dt></dl></div><p>
+ The regression tests can be run against an already installed and
+ running server, or using a temporary installation within the build
+ tree. Furthermore, there is a <span class="quote">“<span class="quote">parallel</span>”</span> and a
+ <span class="quote">“<span class="quote">sequential</span>”</span> mode for running the tests. The
+ sequential method runs each test script alone, while the
+ parallel method starts up multiple server processes to run groups
+ of tests in parallel. Parallel testing adds confidence that
+ interprocess communication and locking are working correctly.
+ </p><div class="sect2" id="id-1.6.20.5.3"><div class="titlepage"><div><div><h3 class="title">33.1.1. Running the Tests Against a Temporary Installation</h3></div></div></div><p>
+ To run the parallel regression tests after building but before installation,
+ type:
+</p><pre class="screen">
+make check
+</pre><p>
+ in the top-level directory. (Or you can change to
+ <code class="filename">src/test/regress</code> and run the command there.)
+ At the end you should see something like:
+</p><pre class="screen">
+<code class="computeroutput">
+=======================
+ All 193 tests passed.
+=======================
+</code>
+</pre><p>
+ or otherwise a note about which tests failed. See <a class="xref" href="regress-evaluation.html" title="33.2. Test Evaluation">Section 33.2</a> below before assuming that a
+ <span class="quote">“<span class="quote">failure</span>”</span> represents a serious problem.
+ </p><p>
+ Because this test method runs a temporary server, it will not work
+ if you did the build as the root user, since the server will not start as
+ root. Recommended procedure is not to do the build as root, or else to
+ perform testing after completing the installation.
+ </p><p>
+ If you have configured <span class="productname">PostgreSQL</span> to install
+ into a location where an older <span class="productname">PostgreSQL</span>
+ installation already exists, and you perform <code class="literal">make check</code>
+ before installing the new version, you might find that the tests fail
+ because the new programs try to use the already-installed shared
+ libraries. (Typical symptoms are complaints about undefined symbols.)
+ If you wish to run the tests before overwriting the old installation,
+ you'll need to build with <code class="literal">configure --disable-rpath</code>.
+ It is not recommended that you use this option for the final installation,
+ however.
+ </p><p>
+ The parallel regression test starts quite a few processes under your
+ user ID. Presently, the maximum concurrency is twenty parallel test
+ scripts, which means forty processes: there's a server process and a
+ <span class="application">psql</span> process for each test script.
+ So if your system enforces a per-user limit on the number of processes,
+ make sure this limit is at least fifty or so, else you might get
+ random-seeming failures in the parallel test. If you are not in
+ a position to raise the limit, you can cut down the degree of parallelism
+ by setting the <code class="literal">MAX_CONNECTIONS</code> parameter. For example:
+</p><pre class="screen">
+make MAX_CONNECTIONS=10 check
+</pre><p>
+ runs no more than ten tests concurrently.
+ </p></div><div class="sect2" id="id-1.6.20.5.4"><div class="titlepage"><div><div><h3 class="title">33.1.2. Running the Tests Against an Existing Installation</h3></div></div></div><p>
+ To run the tests after installation (see <a class="xref" href="installation.html" title="Chapter 17. Installation from Source Code">Chapter 17</a>),
+ initialize a data directory and start the
+ server as explained in <a class="xref" href="runtime.html" title="Chapter 19. Server Setup and Operation">Chapter 19</a>, then type:
+</p><pre class="screen">
+make installcheck
+</pre><p>
+or for a parallel test:
+</p><pre class="screen">
+make installcheck-parallel
+</pre><p>
+ The tests will expect to contact the server at the local host and the
+ default port number, unless directed otherwise by <code class="envar">PGHOST</code> and
+ <code class="envar">PGPORT</code> environment variables. The tests will be run in a
+ database named <code class="literal">regression</code>; any existing database by this name
+ will be dropped.
+ </p><p>
+ The tests will also transiently create some cluster-wide objects, such as
+ roles, tablespaces, and subscriptions. These objects will have names
+ beginning with <code class="literal">regress_</code>. Beware of
+ using <code class="literal">installcheck</code> mode with an installation that has
+ any actual global objects named that way.
+ </p></div><div class="sect2" id="id-1.6.20.5.5"><div class="titlepage"><div><div><h3 class="title">33.1.3. Additional Test Suites</h3></div></div></div><p>
+ The <code class="literal">make check</code> and <code class="literal">make installcheck</code> commands
+ run only the <span class="quote">“<span class="quote">core</span>”</span> regression tests, which test built-in
+ functionality of the <span class="productname">PostgreSQL</span> server. The source
+ distribution contains many additional test suites, most of them having
+ to do with add-on functionality such as optional procedural languages.
+ </p><p>
+ To run all test suites applicable to the modules that have been selected
+ to be built, including the core tests, type one of these commands at the
+ top of the build tree:
+</p><pre class="screen">
+make check-world
+make installcheck-world
+</pre><p>
+ These commands run the tests using temporary servers or an
+ already-installed server, respectively, just as previously explained
+ for <code class="literal">make check</code> and <code class="literal">make installcheck</code>. Other
+ considerations are the same as previously explained for each method.
+ Note that <code class="literal">make check-world</code> builds a separate instance
+ (temporary data directory) for each tested module, so it requires more
+ time and disk space than <code class="literal">make installcheck-world</code>.
+ </p><p>
+ On a modern machine with multiple CPU cores and no tight operating-system
+ limits, you can make things go substantially faster with parallelism.
+ The recipe that most PostgreSQL developers actually use for running all
+ tests is something like
+</p><pre class="screen">
+make check-world -j8 &gt;/dev/null
+</pre><p>
+ with a <code class="option">-j</code> limit near to or a bit more than the number
+ of available cores. Discarding <span class="systemitem">stdout</span>
+ eliminates chatter that's not interesting when you just want to verify
+ success. (In case of failure, the <span class="systemitem">stderr</span>
+ messages are usually enough to determine where to look closer.)
+ </p><p>
+ Alternatively, you can run individual test suites by typing
+ <code class="literal">make check</code> or <code class="literal">make installcheck</code> in the appropriate
+ subdirectory of the build tree. Keep in mind that <code class="literal">make
+ installcheck</code> assumes you've installed the relevant module(s), not
+ only the core server.
+ </p><p>
+ The additional tests that can be invoked this way include:
+ </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
+ Regression tests for optional procedural languages.
+ These are located under <code class="filename">src/pl</code>.
+ </p></li><li class="listitem"><p>
+ Regression tests for <code class="filename">contrib</code> modules,
+ located under <code class="filename">contrib</code>.
+ Not all <code class="filename">contrib</code> modules have tests.
+ </p></li><li class="listitem"><p>
+ Regression tests for the ECPG interface library,
+ located in <code class="filename">src/interfaces/ecpg/test</code>.
+ </p></li><li class="listitem"><p>
+ Tests for core-supported authentication methods,
+ located in <code class="filename">src/test/authentication</code>.
+ (See below for additional authentication-related tests.)
+ </p></li><li class="listitem"><p>
+ Tests stressing behavior of concurrent sessions,
+ located in <code class="filename">src/test/isolation</code>.
+ </p></li><li class="listitem"><p>
+ Tests for crash recovery and physical replication,
+ located in <code class="filename">src/test/recovery</code>.
+ </p></li><li class="listitem"><p>
+ Tests for logical replication,
+ located in <code class="filename">src/test/subscription</code>.
+ </p></li><li class="listitem"><p>
+ Tests of client programs, located under <code class="filename">src/bin</code>.
+ </p></li></ul></div><p>
+ When using <code class="literal">installcheck</code> mode, these tests will create
+ and destroy test databases whose names
+ include <code class="literal">regression</code>, for
+ example <code class="literal">pl_regression</code>
+ or <code class="literal">contrib_regression</code>. Beware of
+ using <code class="literal">installcheck</code> mode with an installation that has
+ any non-test databases named that way.
+ </p><p>
+ Some of these auxiliary test suites use the TAP infrastructure explained
+ in <a class="xref" href="regress-tap.html" title="33.4. TAP Tests">Section 33.4</a>.
+ The TAP-based tests are run only when PostgreSQL was configured with the
+ option <code class="option">--enable-tap-tests</code>. This is recommended for
+ development, but can be omitted if there is no suitable Perl installation.
+ </p><p>
+ Some test suites are not run by default, either because they are not secure
+ to run on a multiuser system or because they require special software. You
+ can decide which test suites to run additionally by setting the
+ <code class="command">make</code> or environment variable
+ <code class="varname">PG_TEST_EXTRA</code> to a whitespace-separated list, for
+ example:
+</p><pre class="programlisting">
+make check-world PG_TEST_EXTRA='kerberos ldap ssl'
+</pre><p>
+ The following values are currently supported:
+ </p><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">kerberos</code></span></dt><dd><p>
+ Runs the test suite under <code class="filename">src/test/kerberos</code>. This
+ requires an MIT Kerberos installation and opens TCP/IP listen sockets.
+ </p></dd><dt><span class="term"><code class="literal">ldap</code></span></dt><dd><p>
+ Runs the test suite under <code class="filename">src/test/ldap</code>. This
+ requires an <span class="productname">OpenLDAP</span> installation and opens
+ TCP/IP listen sockets.
+ </p></dd><dt><span class="term"><code class="literal">ssl</code></span></dt><dd><p>
+ Runs the test suite under <code class="filename">src/test/ssl</code>. This opens TCP/IP listen sockets.
+ </p></dd><dt><span class="term"><code class="literal">wal_consistency_checking</code></span></dt><dd><p>
+ Uses <code class="literal">wal_consistency_checking=all</code> while running
+ certain tests under <code class="filename">src/test/recovery</code>. Not
+ enabled by default because it is resource intensive.
+ </p></dd></dl></div><p>
+
+ Tests for features that are not supported by the current build
+ configuration are not run even if they are mentioned in
+ <code class="varname">PG_TEST_EXTRA</code>.
+ </p><p>
+ In addition, there are tests in <code class="filename">src/test/modules</code>
+ which will be run by <code class="literal">make check-world</code> but not
+ by <code class="literal">make installcheck-world</code>. This is because they
+ install non-production extensions or have other side-effects that are
+ considered undesirable for a production installation. You can
+ use <code class="literal">make install</code> and <code class="literal">make
+ installcheck</code> in one of those subdirectories if you wish,
+ but it's not recommended to do so with a non-test server.
+ </p></div><div class="sect2" id="id-1.6.20.5.6"><div class="titlepage"><div><div><h3 class="title">33.1.4. Locale and Encoding</h3></div></div></div><p>
+ By default, tests using a temporary installation use the
+ locale defined in the current environment and the corresponding
+ database encoding as determined by <code class="command">initdb</code>. It
+ can be useful to test different locales by setting the appropriate
+ environment variables, for example:
+</p><pre class="screen">
+make check LANG=C
+make check LC_COLLATE=en_US.utf8 LC_CTYPE=fr_CA.utf8
+</pre><p>
+ For implementation reasons, setting <code class="envar">LC_ALL</code> does not
+ work for this purpose; all the other locale-related environment
+ variables do work.
+ </p><p>
+ When testing against an existing installation, the locale is
+ determined by the existing database cluster and cannot be set
+ separately for the test run.
+ </p><p>
+ You can also choose the database encoding explicitly by setting
+ the variable <code class="envar">ENCODING</code>, for example:
+</p><pre class="screen">
+make check LANG=C ENCODING=EUC_JP
+</pre><p>
+ Setting the database encoding this way typically only makes sense
+ if the locale is C; otherwise the encoding is chosen automatically
+ from the locale, and specifying an encoding that does not match
+ the locale will result in an error.
+ </p><p>
+ The database encoding can be set for tests against either a temporary or
+ an existing installation, though in the latter case it must be
+ compatible with the installation's locale.
+ </p></div><div class="sect2" id="id-1.6.20.5.7"><div class="titlepage"><div><div><h3 class="title">33.1.5. Custom Server Settings</h3></div></div></div><p>
+ Custom server settings to use when running a regression test suite can be
+ set in the <code class="varname">PGOPTIONS</code> environment variable (for settings
+ that allow this):
+</p><pre class="screen">
+make check PGOPTIONS="-c force_parallel_mode=regress -c work_mem=50MB"
+</pre><p>
+ When running against a temporary installation, custom settings can also be
+ set by supplying a pre-written <code class="filename">postgresql.conf</code>:
+</p><pre class="screen">
+echo 'log_checkpoints = on' &gt; test_postgresql.conf
+echo 'work_mem = 50MB' &gt;&gt; test_postgresql.conf
+make check EXTRA_REGRESS_OPTS="--temp-config=test_postgresql.conf"
+</pre><p>
+ </p><p>
+ This can be useful to enable additional logging, adjust resource limits,
+ or enable extra run-time checks such as <a class="xref" href="runtime-config-developer.html#GUC-DEBUG-DISCARD-CACHES">debug_discard_caches</a>.
+ </p></div><div class="sect2" id="id-1.6.20.5.8"><div class="titlepage"><div><div><h3 class="title">33.1.6. Extra Tests</h3></div></div></div><p>
+ The core regression test suite contains a few test files that are not
+ run by default, because they might be platform-dependent or take a
+ very long time to run. You can run these or other extra test
+ files by setting the variable <code class="envar">EXTRA_TESTS</code>. For
+ example, to run the <code class="literal">numeric_big</code> test:
+</p><pre class="screen">
+make check EXTRA_TESTS=numeric_big
+</pre><p>
+ </p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="regress.html" title="Chapter 33. Regression Tests">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-evaluation.html" title="33.2. Test Evaluation">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 33. Regression Tests </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.4 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 33.2. Test Evaluation</td></tr></table></div></body></html> \ No newline at end of file