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Use alternative way of testing for non-EEXIST exceptions

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Signed-off-by: Vladimir Diaz <vladimir.v.diaz@gmail.com>
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Vladimir Diaz 2018-04-20 11:27:08 -04:00
parent 0f4d7a76fc
commit 52aeeec8db
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1 changed files with 11 additions and 9 deletions
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20
tests/test_repository_lib.py
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@ -84,6 +84,7 @@ def tearDownClass(cls):
# metadata, targets, and key files generated for the test cases.
tuf.roledb.clear_roledb(clear_all=True)
tuf.keydb.clear_keydb(clear_all=True)
shutil.rmtree(cls.temporary_directory)
@ -853,19 +854,20 @@ def test_create_tuf_client_directory(self):
# Test invalid client metadata directory (i.e., non-errno.EEXIST exceptions
# should be re-raised.)
shutil.rmtree(metadata_directory)
current_client_directory_mode = os.stat(client_directory)[stat.ST_MODE]
# Remove write access for the client directory so that the 'metadata'
# directory cannot be created. create_tuf_client_directory() should
# re-raise the 'OSError' (i.e., errno.EACCES) exception and only handle
# errno.EEXIST.
os.chmod(client_directory, current_client_directory_mode & ~stat.S_IWUSR)
# Save the original metadata directory name so that it can be restored
# after testing.
metadata_directory_name = repo_lib.METADATA_DIRECTORY_NAME
repo_lib.METADATA_DIRECTORY_NAME = '/'
# Creation of the '/' directory is forbidden on all supported OSs. The '/'
# argument to create_tuf_client_directory should cause it to re-raise a
# non-errno.EEXIST exception.
self.assertRaises(OSError, repo_lib.create_tuf_client_directory,
repository_directory, client_directory)
repository_directory, '/')
# Reset the client directory's mode.
os.chmod(client_directory, current_client_directory_mode)
# Restore the metadata directory name in repo_lib.
repo_lib.METADATA_DIRECTORY_NAME = metadata_directory_name