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     The <strong>LLDB</strong> Debugger
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         <div class="post">
           <h1 class="postheader">Testing LLDB</h1>
           <div class="postcontent">
             <p>
               The LLDB test suite consists of Python scripts located under the
               <tt>test</tt> directory. Each script contains a number of test cases and is usually
               accompanied by a C (C++, ObjC, etc.) source file. Each test first compiles the
               source file and then uses LLDB to debug the resulting executable. The tests verify
               both the LLDB command line interface and the scripting API.
             </p>

             <p>
               The easiest way to run the LLDB test suite is to use the <tt>check-lldb</tt> build
               target. By default, the <tt>check-lldb</tt> target builds the test programs with
               the same compiler that was used to build LLDB. To build the tests with a different
               compiler, you can set the <tt>LLDB_TEST_COMPILER</tt> CMake variable. It is possible to
               customize the architecture of the test binaries and compiler used by appending -A
               and -C options respectively to the CMake variable <tt>LLDB_TEST_USER_ARGS</tt>. For
               example, to test LLDB against 32-bit binaries
               built with a custom version of clang, do:
             </p>
             <code>
               <br />&gt; cmake -DLLDB_TEST_ARGS="-A i386 -C /path/to/custom/clang" -G Ninja
               <br />&gt; ninja check-lldb
             </code>
             <p>Note that multiple -A and -C flags can be specified to <tt>LLDB_TEST_USER_ARGS</tt>.</p>
             <p>
               In addition to running all the LLDB test suites with the "check-lldb" CMake target above, it is possible to
               run individual LLDB tests. For example, to run the test cases defined in TestInferiorCrashing.py, run:
             </p>
             <code>
               <br />&gt; cd $lldb/test
               <br />&gt; python dotest.py --executable &lt;path-to-lldb&gt;  -p TestInferiorCrashing.py
             </code>
             <p>
               In addition to running a test by name, it is also possible to specify a directory path to <tt>dotest.py</tt>
               in order to run all the tests under that directory. For example, to run all the tests under the
               'functionalities/data-formatter' directory, run:
             </p>
             <code>
               <br />&gt; python dotest.py --executable &lt;path-to-lldb&gt; functionalities/data-formatter
             </code>
             <p>
               To dump additional information to <tt>stdout</tt> about how the test harness is driving LLDB, run
               <tt>dotest.py</tt> with the <tt>-t</tt> flag. Many more options that are available. To see a list of all of them, run:
             </p>
             <code>
               <br />&gt; python dotest.py -h
             </code>

             <p>
               Besides <code>dotest.py</code>, there is also <code>dosep.py</code>, which runs
               multiple instances of <code>dotest.py</code> in parallel, thereby greatly
               decreasing the time it takes to run the full testsuite. The number of concurrent
               tests is controlled by the <code>LLDB_TEST_THREADS</code> environment variable or
               the <code>--threads</code> command line parameter. The default value is the number
               of CPUs on your system. To pass additional options to <code>dotest.py</code>,
               specify those options as an <code>-o</code> argument to <code>dosep.py</code>. For
               example, the command
             </p>
             <code>python dosep.py -o "--executable bin/lldb -C bin/clang"</code>
             <p>
               will specify the lldb and clang executables to test for each dotest invocation.
               <code>ninja check-lldb</code> is wrapper around <code>dosep.py</code>.
             </p>

             <h3>Running the test-suite remotely</h3>

             <p>
               Running the test-suite remotely is similar to the process of running a local test
               suite, but there are two things to have in mind:
             </p>
             <ul>
               <li>
                 You must have the <code>lldb-server</code> running on the remote system, ready to
                 accept multiple connections. For more information on how to setup remote
                 debugging see the <a href="remote.html">Remote debugging</a> page.
               </li>
               <li>
                 You must tell the test-suite how to connect to the remote system. This is
                 achieved using the <code>--platform-name</code>, <code>--platform-url</code> and
                 <code>--platform-working-dir</code> parameters to <code>dotest.py</code>. These
                 parameters correspond to the <code>platform select</code> and <code>platform
                 connect</code> LLDB commands. You will usually also need to specify the compiler and
                 architecture for the remote system.
               </li>
             </ul>
             <p>
               Currently, running the remote test suite is supported only with
               <code>dotest.py</code> (or <code>dosep.py</code> with a single thread), but we
               expect this issue to be adressed in the near future.
             </p>

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	<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
	<link href="style.css" rel="stylesheet" type="text/css" />
	<title>Testing LLDB</title>
	</head>
	<body>
	<div class="www_title">
	The <strong>LLDB</strong> Debugger
	</div>

	<div id="container">
	<div id="content">

	<!--#include virtual="sidebar.incl"-->

	<div class="post">
	<h1 class="postheader">Testing LLDB</h1>
	<div class="postcontent">
	<p>
	The LLDB test suite consists of Python scripts located under the
	<tt>test</tt> directory. Each script contains a number of test cases and is usually
	accompanied by a C (C++, ObjC, etc.) source file. Each test first compiles the
	source file and then uses LLDB to debug the resulting executable. The tests verify
	both the LLDB command line interface and the scripting API.
	</p>

	<p>
	The easiest way to run the LLDB test suite is to use the <tt>check-lldb</tt> build
	target. By default, the <tt>check-lldb</tt> target builds the test programs with
	the same compiler that was used to build LLDB. To build the tests with a different
	compiler, you can set the <tt>LLDB_TEST_COMPILER</tt> CMake variable. It is possible to
	customize the architecture of the test binaries and compiler used by appending -A
	and -C options respectively to the CMake variable <tt>LLDB_TEST_USER_ARGS</tt>. For
	example, to test LLDB against 32-bit binaries
	built with a custom version of clang, do:
	</p>
	<code>
	<br />> cmake -DLLDB_TEST_ARGS="-A i386 -C /path/to/custom/clang" -G Ninja
	<br />> ninja check-lldb
	</code>
	<p>Note that multiple -A and -C flags can be specified to <tt>LLDB_TEST_USER_ARGS</tt>.</p>
	<p>
	In addition to running all the LLDB test suites with the "check-lldb" CMake target above, it is possible to
	run individual LLDB tests. For example, to run the test cases defined in TestInferiorCrashing.py, run:
	</p>
	<code>
	<br />> cd $lldb/test
	<br />> python dotest.py --executable <path-to-lldb> -p TestInferiorCrashing.py
	</code>
	<p>
	In addition to running a test by name, it is also possible to specify a directory path to <tt>dotest.py</tt>
	in order to run all the tests under that directory. For example, to run all the tests under the
	'functionalities/data-formatter' directory, run:
	</p>
	<code>
	<br />> python dotest.py --executable <path-to-lldb> functionalities/data-formatter
	</code>
	<p>
	To dump additional information to <tt>stdout</tt> about how the test harness is driving LLDB, run
	<tt>dotest.py</tt> with the <tt>-t</tt> flag. Many more options that are available. To see a list of all of them, run:
	</p>
	<code>
	<br />> python dotest.py -h
	</code>

	<p>
	Besides <code>dotest.py</code>, there is also <code>dosep.py</code>, which runs
	multiple instances of <code>dotest.py</code> in parallel, thereby greatly
	decreasing the time it takes to run the full testsuite. The number of concurrent
	tests is controlled by the <code>LLDB_TEST_THREADS</code> environment variable or
	the <code>--threads</code> command line parameter. The default value is the number
	of CPUs on your system. To pass additional options to <code>dotest.py</code>,
	specify those options as an <code>-o</code> argument to <code>dosep.py</code>. For
	example, the command
	</p>
	<code>python dosep.py -o "--executable bin/lldb -C bin/clang"</code>
	<p>
	will specify the lldb and clang executables to test for each dotest invocation.
	<code>ninja check-lldb</code> is wrapper around <code>dosep.py</code>.
	</p>

	<h3>Running the test-suite remotely</h3>

	<p>
	Running the test-suite remotely is similar to the process of running a local test
	suite, but there are two things to have in mind:
	</p>
	<ul>
	<li>
	You must have the <code>lldb-server</code> running on the remote system, ready to
	accept multiple connections. For more information on how to setup remote
	debugging see the <a href="remote.html">Remote debugging</a> page.
	</li>
	<li>
	You must tell the test-suite how to connect to the remote system. This is
	achieved using the <code>--platform-name</code>, <code>--platform-url</code> and
	<code>--platform-working-dir</code> parameters to <code>dotest.py</code>. These
	parameters correspond to the <code>platform select</code> and <code>platform
	connect</code> LLDB commands. You will usually also need to specify the compiler and
	architecture for the remote system.
	</li>
	</ul>
	<p>
	Currently, running the remote test suite is supported only with
	<code>dotest.py</code> (or <code>dosep.py</code> with a single thread), but we
	expect this issue to be adressed in the near future.
	</p>

	</div>
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	</div>
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