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Merged
merged 21 commits into from
May 18, 2021
Merged

bpo-25872: Add unit tests for linecache and threading #25913

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5143e74
bpo-25872: add test_oserror
uniocto May 5, 2021
fc1f92d
refactor linecache
uniocto May 5, 2021
fc4df5d
add test_multithread_modify_file()
uniocto May 5, 2021
a977922
refactor test_threading
uniocto May 5, 2021
759de2b
refactor test_multithread_modify_file_noerror()
uniocto May 5, 2021
5666a1d
refactor raise_oserror()
uniocto May 5, 2021
4513859
Change black box tests and refactoring
uniocto May 8, 2021
8376d21
refactor LineCacheInvalidationTests
uniocto May 9, 2021
708e348
refactor test_multithread_modify_file_noerror
uniocto May 9, 2021
f021de2
refactor assertions
uniocto May 9, 2021
a396fad
Update Lib/test/test_linecache.py
uniocto May 9, 2021
833c9b9
Update Lib/test/test_linecache.py
uniocto May 9, 2021
bcc20ab
Update Lib/test/test_threading.py
uniocto May 9, 2021
ba62b83
change __file__ and rm traceback.format_stack
uniocto May 13, 2021
420a638
add traceback
uniocto May 13, 2021
2c8269b
fix type in field name
iritkatriel May 14, 2021
8efe040
reduce repetition in setUp
iritkatriel May 14, 2021
240eb9a
check cache keys directly, not count
iritkatriel May 14, 2021
f66a050
Merge pull request #2 from iritkatriel/pr25913
uniocto May 15, 2021
78897e7
addCleanup to outside of the mofidy_file()
uniocto May 15, 2021
ac550ef
Merge remote-tracking branch 'upstream/main' into fix-issue-25872
uniocto May 17, 2021
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refactor LineCacheInvalidationTests
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@uniocto
uniocto committed May 9, 2021
commit 8376d21502d7ea88c7b263bcdedd7f461a7ef12d
83 changes: 42 additions & 41 deletions Lib/test/test_linecache.py
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Original file line number Diff line number Diff line change
Expand Up @@ -238,47 +238,48 @@ def raise_memoryerror(*args, **kwargs):
self.assertEqual(lines3, [])
self.assertEqual(linecache.getlines(FILENAME), lines)

def test_oserror(self):
def _oserror_helper():
linecache.clearcache()
be_deleted_file = os_helper.TESTFN + '.1'
be_modified_file = os_helper.TESTFN + '.2'
unchange_file = os_helper.TESTFN + '.3'
self.addCleanup(os_helper.unlink, be_deleted_file)
self.addCleanup(os_helper.unlink, be_modified_file)
self.addCleanup(os_helper.unlink, unchange_file)
with open(be_deleted_file, 'w', encoding='utf-8') as source:
source.write('print("will be deleted")')
with open(be_modified_file, 'w', encoding='utf-8') as source:
source.write('print("will be modified")')
with open(unchange_file, 'w', encoding='utf-8') as source:
source.write('print("unchange")')

_ = linecache.getlines(be_deleted_file)
_ = linecache.getlines(be_modified_file)
_ = linecache.getlines(unchange_file)
self.assertEqual(3, len(linecache.cache.keys()))

os.remove(be_deleted_file)
with open(be_modified_file, 'w', encoding='utf-8') as source:
source.write('print("was modified")')
return (be_deleted_file, be_modified_file, unchange_file)

deleted_file, modified_file, unchange_file = _oserror_helper()
_ = linecache.checkcache(deleted_file)
self.assertEqual(2, len(linecache.cache.keys()))
_ = linecache.checkcache(modified_file)
self.assertEqual(1, len(linecache.cache.keys()))
_ = linecache.checkcache(unchange_file)
self.assertEqual(1, len(linecache.cache.keys()))

deleted_file, modified_file, unchange_file = _oserror_helper()
_ = linecache.updatecache(deleted_file)
self.assertEqual(2, len(linecache.cache.keys()))
_ = linecache.updatecache(modified_file)
self.assertEqual(2, len(linecache.cache.keys()))
_ = linecache.updatecache(unchange_file)
self.assertEqual(2, len(linecache.cache.keys()))

class LineCacheInvalidationTests(unittest.TestCase):
def setUp(self):
super().setUp()
linecache.clearcache()
self.deleted_file = os_helper.TESTFN + '.1'
self.modified_file = os_helper.TESTFN + '.2'
self.unchange_file = os_helper.TESTFN + '.3'
self.addCleanup(os_helper.unlink, self.deleted_file)
self.addCleanup(os_helper.unlink, self.modified_file)
self.addCleanup(os_helper.unlink, self.unchange_file)
with open(self.deleted_file, 'w', encoding='utf-8') as source:
source.write('print("will be deleted")')
with open(self.modified_file, 'w', encoding='utf-8') as source:
source.write('print("will be modified")')
with open(self.unchange_file, 'w', encoding='utf-8') as source:
source.write('print("unchange")')

linecache.getlines(self.deleted_file)
linecache.getlines(self.modified_file)
linecache.getlines(self.unchange_file)

os.remove(self.deleted_file)
with open(self.modified_file, 'w', encoding='utf-8') as source:
source.write('print("was modified")')

def test_checkcache_with_oserror(self):
self.assertEqual(3, len(linecache.cache.keys()))
linecache.checkcache(self.deleted_file)
self.assertTrue(2 == len(linecache.cache.keys()) and
self.deleted_file not in linecache.cache.keys())
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Break this up into assertEqual and assertNotIn. See the assert methods here: https://docs.python.org/3/library/unittest.html

That way we get better error messages in the output when the assertion fails.


def test_checkcache_with_not_match_size_or_timestamp(self):
self.assertEqual(3, len(linecache.cache.keys()))
linecache.checkcache(self.modified_file)
self.assertTrue(2 == len(linecache.cache.keys()) and
self.modified_file not in linecache.cache.keys())

def test_checkcache_with_no_parameters(self):
self.assertEqual(3, len(linecache.cache.keys()))
linecache.checkcache()
self.assertTrue([self.unchange_file] == list(linecache.cache.keys()))
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assertEqual



if __name__ == "__main__":
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