def test_acquire_lock_fails_without_workspace(self):
with temp_dir() as directory:
runner = Runner(directory, None)
# Call runner.acquire_lock at this level, at which point directory
# will have already been cleaned up.
with self.assertRaises(SystemExit):
runner.acquire_lock()
def test_acquire_lock_fails_when_existing_lockfile(self):
with temp_dir() as directory:
expected_file = os.path.join(directory, 'chaos_runner.lock')
open(expected_file, 'a').close()
runner = Runner(directory, None)
with self.assertRaises(SystemExit):
runner.acquire_lock()
def test_acquire_lock(self):
with temp_dir() as directory:
expected_file = os.path.join(directory, 'chaos_runner.lock')
expected_pid = str(os.getpid())
runner = Runner(directory, None)
runner.acquire_lock()
self.assertTrue(os.path.exists(expected_file))
with open(expected_file, 'r') as lock_file:
pid = lock_file.read()
self.assertEqual(pid, expected_pid)