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Reid Kleckner 5972ba002c [lit] Implement timeouts and max_time for process pool testing This is necessary to pass the lit test suite at llvm/utils/lit/tests. There are some pre-existing failures here, but now switching to pools doesn't regress any tests. I had to change test-data/lit.cfg to import DummyConfig from a module to fix pickling problems, but I think it'll be OK if we require test formats to be written in real .py modules outside lit.cfg files. I also discovered that in some circumstances AsyncResult.wait() will not raise KeyboardInterrupt in a timely manner, but you can pass a non-zero timeout to work around this. This makes threading.Condition.wait use a polling loop that runs through the interpreter, so it's capable of asynchronously raising KeyboardInterrupt. llvm-svn: 299605		2017-04-06 00:38:28 +00:00
..
examples
lit	[lit] Implement timeouts and max_time for process pool testing	2017-04-06 00:38:28 +00:00
tests	[lit] Implement timeouts and max_time for process pool testing	2017-04-06 00:38:28 +00:00
utils
lit.py	[lit] Remove (or allow specific) unused imports	2016-10-10 01:22:06 +00:00
MANIFEST.in
README.txt	[lit] Remove TODO	2016-11-03 23:41:49 +00:00
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