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Summary: This change removes the intermediate 'FileBasedTest' format from lit. This format is only ever used by the ShTest format, so the logic can be moved into ShTest directly. In order to better clarify what the TestFormat subclasses do, I fleshed out the TestFormat base class with Python's notion of abstract methods, using @abc.abstractmethod. This gives a convenient way to document the expected interface, without the risk of instantiating an abstract class (that's what ABCMeta does -- it raises an exception if you try to instantiate a class which has abstract methods, but not if you instantiate a subclass that implements them). Reviewers: zturner, modocache Subscribers: sanjoy, llvm-commits Differential Revision: https://reviews.llvm.org/D34792 llvm-svn: 306623
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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