def test_first_inexistent_directory_traversing_nondir(self):
"""Tests the output of first_inexistent_directory when one of the
intermediate directories is actually a file."""
os.makedirs(self.foo, 0o0755)
with open(self.bar, 'a'):
pass
with self.assertRaises(FileExistsError):
first_inexistent_directory(self.baz)
def test_makedirs_race_condition(self):
"""Mocks os.makedirs behaviour to create willingly a race condition in
filesystem.makedirs and test it."""
first_inexistent_directory(self.baz)
makedirs(self.bar)
with unittest.mock.patch('os.makedirs', new=fake_makedirs):
with self.assertRaises(FileExistsError):
makedirs(self.baz)
def test_first_inexistent_directory(self):
"""Tests the output of first_inexistent_directory"""
upwards_dir = first_inexistent_directory(self.baz)
self.assertEqual(upwards_dir, self.foo)