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enable multiprocessing on other platforms

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Anthony Sottile 2022-10-26 20:17:35 -07:00
parent ebbb57d63c
commit 0d667a7329
7 changed files with 175 additions and 317 deletions
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31
tests/unit/test_checker_manager.py
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@ -20,9 +20,9 @@ def style_guide_mock():
def _parallel_checker_manager():
"""Call Manager.run() and return the number of calls to `run_serial`."""
style_guide = style_guide_mock()
manager = checker.Manager(style_guide, finder.Checkers([], [], []))
# multiple checkers is needed for parallel mode
manager.checkers = [mock.Mock(), mock.Mock()]
manager = checker.Manager(style_guide, finder.Checkers([], [], []), [])
# multiple files is needed for parallel mode
manager.filenames = ("file1", "file2")
return manager
@ -36,8 +36,7 @@ def test_oserrors_cause_serial_fall_back():
assert serial.call_count == 1
@mock.patch.object(multiprocessing, "get_start_method", return_value="fork")
def test_oserrors_are_reraised(_):
def test_oserrors_are_reraised():
"""Verify that unexpected OSErrors will cause the Manager to reraise."""
err = OSError(errno.EAGAIN, "Ominous message")
with mock.patch("_multiprocessing.SemLock", side_effect=err):
@ -48,14 +47,6 @@ def test_oserrors_are_reraised(_):
assert serial.call_count == 0
@mock.patch.object(multiprocessing, "get_start_method", return_value="spawn")
def test_multiprocessing_is_disabled(_):
"""Verify not being able to import multiprocessing forces jobs to 0."""
style_guide = style_guide_mock()
manager = checker.Manager(style_guide, finder.Checkers([], [], []))
assert manager.jobs == 0
def test_multiprocessing_cpu_count_not_implemented():
"""Verify that jobs is 0 if cpu_count is unavailable."""
style_guide = style_guide_mock()
@ -66,22 +57,18 @@ def test_multiprocessing_cpu_count_not_implemented():
"cpu_count",
side_effect=NotImplementedError,
):
manager = checker.Manager(style_guide, finder.Checkers([], [], []))
manager = checker.Manager(style_guide, finder.Checkers([], [], []), [])
assert manager.jobs == 0
@mock.patch.object(multiprocessing, "get_start_method", return_value="spawn")
def test_make_checkers(_):
def test_make_checkers():
"""Verify that we create a list of FileChecker instances."""
style_guide = style_guide_mock()
style_guide.options.filenames = ["file1", "file2"]
manager = checker.Manager(style_guide, finder.Checkers([], [], []))
manager = checker.Manager(style_guide, finder.Checkers([], [], []), [])
with mock.patch("flake8.utils.fnmatch", return_value=True):
with mock.patch("flake8.processor.FileProcessor"):
manager.make_checkers(["file1", "file2"])
manager.start()
assert manager._all_checkers
for file_checker in manager._all_checkers:
assert file_checker.filename in style_guide.options.filenames
assert not manager.checkers # the files don't exist
assert manager.filenames == ("file1", "file2")