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History

David Greene 7b9799ff50 [lit] Respect PYTHONPATH If a user has PYTHONPATH set in the environment, append new entries to it rather than blindly setting PYTHONPATH to a fixed string. This allows tests to, for example, find psutil if it is in PYTHONPATH. Without this change, lit will detect psutil but then various tests will fail because PYTHONPATH has been overwritten and psutil cannot be found. llvm-svn: 350536		2019-01-07 16:24:37 +00:00
..
examples	Fix lit/example/many-tests pickling issue	2018-09-14 19:44:09 +00:00
lit	Python compat - print statement	2019-01-03 14:11:33 +00:00
tests	[lit] Respect PYTHONPATH	2019-01-07 16:24:37 +00:00
utils
CMakeLists.txt
lit.py
MANIFEST.in	lit: Make sure the builtin_commands directory is packaged by setup.py	2018-09-26 14:56:11 +00:00
README.txt
setup.py

README.txt

===============================
 lit - A Software Testing Tool
===============================

lit is a portable tool for executing LLVM and Clang style test suites,
summarizing their results, and providing indication of failures. lit is designed
to be a lightweight testing tool with as simple a user interface as possible.

=====================
 Contributing to lit
=====================

Please browse the Test Suite > lit category in LLVM's Bugzilla for ideas on
what to work on.

Before submitting patches, run the test suite to ensure nothing has regressed:

    # From within your LLVM source directory.
    utils/lit/lit.py \
        --path /path/to/your/llvm/build/bin \
        utils/lit/tests

Note that lit's tests depend on 'not' and 'FileCheck', LLVM utilities.
You will need to have built LLVM tools in order to run lit's test suite
successfully.

You'll also want to confirm that lit continues to work when testing LLVM.
Follow the instructions in http://llvm.org/docs/TestingGuide.html to run the
regression test suite:

    make check-llvm

And be sure to run the llvm-lit wrapper script as well:

    /path/to/your/llvm/build/bin/llvm-lit utils/lit/tests

Finally, make sure lit works when installed via setuptools:

    python utils/lit/setup.py install
    lit --path /path/to/your/llvm/build/bin utils/lit/tests