forked from lix-project/lix
Qyriad
69c3363f2f
Functional tests can be run with
`meson test -C build --suite installcheck`.
Notably, functional tests must be run *after* running `meson install`
(Lix's derivation runs the installcheck suite in installCheckPhase so it
does this correctly), due to some quirks between Meson and the testing
system.
As far as I can tell the functional tests are meant to be run after
installing anyway, but unfortunately I can't transparently make
`meson test --suite installcheck` depend on the install targets.
The script that runs the functional tests, meson/run-test.py, checks
that `meson install` has happened and fails fast with a (hopefully)
helpful error message if any of the functional tests are run before
installing.
TODO: this change needs reflection in developer documentation
Change-Id: I8dcb5fdfc0b6cb17580973d24ad930abd57018f6
106 lines
4.8 KiB
Python
Executable file
106 lines
4.8 KiB
Python
Executable file
#!/usr/bin/env python3
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"""
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So like. This script is cursed.
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It's a helper for this project's Meson buildsystem for Lix's functional tests.
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The functional tests are a bunch of bash scripts, that each expect to be run from the
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directory from the directory that that script is in, and also expect modifications to have
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happened to the source tree, and even splork files around. The last is against the spirit
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of Meson (and personally annoying), to have build processes that aren't self-contained in the
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out-of-source build directory, but more problematically we need configured files in the test
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tree.
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So. We copy the tests tree into the build directory.
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Meson doesn't have a good way of doing this natively -- the best you could do is subdir()
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into every directory in the tests tree and configure_file(copy : true) on every file,
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but this won't copy symlinks as symlinks, which we need since the test suite has, well,
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tests on symlinks.
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However, the functional tests are normally run during Lix's derivation's installCheckPhase,
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after Lix has already been "installed" somewhere. So in Meson we setup add this file as an
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install script and copy everything in tests/functional to the build directory, preserving
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things like symlinks, even broken ones (which are intentional).
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TODO(Qyriad): when we remove the old build system entirely, we can instead fix the tests.
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"""
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from pathlib import Path
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import os, os.path
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import shutil
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import sys
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import traceback
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name = 'setup-functional-tests.py'
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if 'MESON_SOURCE_ROOT' not in os.environ or 'MESON_BUILD_ROOT' not in os.environ:
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raise ValueError(f'{name}: this script must be run from the Meson build system')
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print(f'{name}: mirroring tests/functional to build directory')
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tests_source = Path(os.environ['MESON_SOURCE_ROOT']) / 'tests/functional'
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tests_build = Path(os.environ['MESON_BUILD_ROOT']) / 'tests/functional'
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def main():
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os.chdir(tests_build)
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for src_dirpath, src_dirnames, src_filenames in os.walk(tests_source):
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src_dirpath = Path(src_dirpath)
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assert src_dirpath.is_absolute(), f'{src_dirpath=} is not absolute'
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# os.walk() gives us the absolute path to the directory we're currently in as src_dirpath.
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# We want to mirror from the perspective of `tests_source`.
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rel_subdir = src_dirpath.relative_to(tests_source)
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assert (not rel_subdir.is_absolute()), f'{rel_subdir=} is not relative'
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# And then join that relative path on `tests_build` to get the absolute
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# path in the build directory that corresponds to `src_dirpath`.
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build_dirpath = tests_build / rel_subdir
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assert build_dirpath.is_absolute(), f'{build_dirpath=} is not absolute'
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# More concretely, for the test file tests/functional/ca/build.sh:
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# - src_dirpath is `$MESON_SOURCE_ROOT/tests/functional/ca`
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# - rel_subidr is `ca`
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# - build_dirpath is `$MESON_BUILD_ROOT/tests/functional/ca`
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# `src_dirname` are directories underneath `src_dirpath`, and will be relative
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# to `src_dirpath`.
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for src_dirname in src_dirnames:
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# Take the name of the directory in the tests source and join it on `src_dirpath`
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# to get the full path to this specific directory in the tests source.
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src = src_dirpath / src_dirname
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# If there isn't *something* here, then our logic is wrong.
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# Path.exists(follow_symlinks=False) wasn't added until Python 3.12, so we use
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# os.path.lexists() here.
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assert os.path.lexists(src), f'{src=} does not exist'
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# Take the name of this directory and join it on `build_dirpath` to get the full
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# path to the directory in `build/tests/functional` that we need to create.
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dest = build_dirpath / src_dirname
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if src.is_symlink():
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src_target = src.readlink()
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dest.unlink(missing_ok=True)
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dest.symlink_to(src_target)
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else:
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dest.mkdir(parents=True, exist_ok=True)
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for src_filename in src_filenames:
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# os.walk() should be giving us relative filenames.
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# If it isn't, our path joins will be veeeery wrong.
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assert (not Path(src_filename).is_absolute()), f'{src_filename=} is not relative'
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src = src_dirpath / src_filename
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dst = build_dirpath / src_filename
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# Mildly misleading name -- unlink removes ordinary files as well as symlinks.
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dst.unlink(missing_ok=True)
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# shutil.copy2() best-effort preserves metadata.
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shutil.copy2(src, dst, follow_symlinks=False)
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try:
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sys.exit(main())
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except Exception as e:
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# Any error is likely a bug in this script.
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print(f'{name}: INTERNAL ERROR setting up functional tests: {e}', file=sys.stderr)
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print(traceback.format_exc())
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print(f'this is a bug in {name}')
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sys.exit(1)
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