forked from OSchip/llvm-project
104 lines
4.6 KiB
Plaintext
104 lines
4.6 KiB
Plaintext
This README file describes the files and directories related to the Python test
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suite under the current 'test' directory.
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o dotest.py
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Provides the test driver for the test suite. To invoke it, cd to the 'test'
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directory and issue the './dotest.py' command or './dotest.py -v' for more
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verbose output. '.dotest.py -h' prints out the help messge.
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A specific naming pattern is followed by the .py script under the 'test'
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directory in order to be recognized by 'dotest.py' test driver as a module
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which implements a test case, namely, Test*.py.
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Some example usages:
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1. ./dotest.py -v . 2> ~/Developer/Log/lldbtest.log0
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This runs the test suite and directs the run log to a file.
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2. LLDB_LOG=/tmp/lldb.log GDB_REMOTE_LOG=/tmp/gdb-remote.log ./dotest.py -v . 2> ~/Developer/Log/lldbtest.log
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This runs the test suite, with logging turned on for the lldb as well as
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the process.gdb-remote channels and directs the run log to a file.
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o lldbtest.py
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Provides an abstract base class of lldb test case named 'TestVase', which in
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turn inherits from Python's unittest.TestCase. The concrete subclass can
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override lldbtest.TestBase in order to inherit the common behavior for
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unittest.TestCase.setUp/tearDown implemented in this file.
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To provide a test case, the concrete subclass provides methods whose names
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start with the letters test. For more details about the Python's unittest
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framework, go to http://docs.python.org/library/unittest.html.
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./command_source/TestCommandSource.py provides a simple example of test case
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which overrides lldbtest.TestBase to exercise the lldb's 'command source'
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command. The subclass should override the attribute 'mydir' in order for the
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runtime to locate the individual test cases when running as part of a large
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test suite or when running each test case as a separate Python invocation.
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The doc string provides more details about the setup required for running a
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test case on its own. To run the whole test suite, 'dotest.py' is all you
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need to do.
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o subdirectories of 'test'
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Most of them predate the introduction of the python test suite and contain
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example C/C++/ObjC source files which get compiled into executables which are
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to be exercised by the debugger.
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For such subdirectory which has an associated Test*.py file, it was added as
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part of the Python-based test suite to test lldb functionality.
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Some of the subdirectories, for example, the 'help' subdirectory, do not have
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C/C++/ObjC source files; they were created to house the Python test case which
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does not involve lldb reading in an executable file at all.
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o make directory
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Contains Makefile.rules, which can be utilized by test cases to write Makefile
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based rules to build native binaries.
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o plugins directory
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Contains platform specific plugin to build binaries with dsym/dwarf debugging
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info. Other platform specific functionalities may be added in the future.
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o unittest2 directory
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Many new features were added to unittest in Python 2.7, including test
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discovery. unittest2 allows you to use these features with earlier versions of
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Python.
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It currently has unittest2 0.5.1 from http://pypi.python.org/pypi/unittest2.
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Version 0.5.1 of unittest2 has feature parity with unittest in Python 2.7
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final. If you want to ensure that your tests run identically under unittest2
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and unittest in Python 2.7 you should use unittest2 0.5.1.
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Later versions of unittest2 include changes in unittest made in Python 3.2 and
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onwards after the release of Python 2.7.
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o dotest.pl
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In case you wonder, there is also a 'dotest.pl' perl script file. It was
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created to visit each Python test case under the specified directory and
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invoke Python's builtin unittest.main() on each test case.
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It does not take advantage of the test runner and test suite functionality
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provided by Python's unitest framework. Its existence is because we want a
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different way of running the whole test suite. As lldb and the Python test
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suite become more reliable, we don't expect to be using 'dotest.pl' anymore.
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Note: dotest.pl has been moved to the attic directory.
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o Profiling dotest.py runs
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I used the following command line thingy to do the profiling on a SnowLeopard
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machine:
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$ DOTEST_PROFILE=YES DOTEST_SCRIPT_DIR=/Volumes/data/lldb/svn/trunk/test /System/Library/Frameworks/Python.framework/Versions/Current/lib/python2.6/cProfile.py -o my.profile ./dotest.py -v -w 2> ~/Developer/Log/lldbtest.log
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After that, I used the pstats.py module to browse the statistics:
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$ python /System/Library/Frameworks/Python.framework/Versions/Current/lib/python2.6/pstats.py my.profile
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