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The flake8 we were running on CI was too old and began giving spurious
errors about the uninterpreted contents of f-strings. Update to the
latest flake8 and fix all the new errors, including the previously
incorrect comment syntax in the .flake8 file.
Also remove scripts/storage.py, since it didn't seem to be used for
anything we currently need.
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Add gtest as a git submodule in third_party and integrate it into the build the
same way WABT does. Adds a new executable, `binaryen-unittests`, to execute
`gtest_main`. As a nontrivial example test, port one of the `TypeBuilder` tests
from example/ to gtest/.
Using gtest has a number of advantages over the current example tests:
- Tests are compiled and linked at build time rather than runtime, surfacing
errors earlier and speeding up test execution.
- Tests are all built into a single binary, reducing overall link time and
further reducing test overhead.
- Tests are built from the same CMake project as the rest of Binaryen, so
compiler settings (e.g. sanitizers) are applied uniformly rather than having
to be separately set via the COMPILER_FLAGS environment variable.
- Using the industry-standard gtest rather than our own script reduces our
maintenance burden.
Using gtest will lower the barrier to writing C++ tests and will hopefully lead
to us having more proper unit tests.
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lit and FileCheck are the tools used to run the majority of tests in LLVM. Each
lit test file contains the commands to be run for that test, so lit tests are
much more flexible and can be more precise than our current ad hoc testing
system. FileCheck reads expected test output from comments, so it allows test
output to be written alongside and interspersed with test input, making tests
more readable and precise than in our current system.
This PR adds a new suite to check.py that runs lit tests in the test/lit
directory. A few tests have been ported to demonstrate the features of the new
test runner.
This change is motivated by a need for greater flexibility in testing wasm-split.
See #3359.
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pep8 specifies 4 space indentation. The use of 2 spaces is, I believe
a historical anomaly where certain large organizations such as google
chose 2 over 4 and have yet to make the switch.
Since there isn't too much code in binaryen today it seems reasonable to
make the switch.
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Also fix broken tests surfaced by the new parser.
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The wasm waterfall is moving away from testing with s2wasm
and s2wasm hopefully going to be removed soon.
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Also refactor auto_update_tests.py into functions to match
check.py
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