def test_delete_process_checkpoints(self):
"""
"""
process_a = ProcessWithCheckpoint()
process_b = ProcessWithCheckpoint()
checkpoint_a1 = PersistedCheckpoint(process_a.pid, '1')
checkpoint_a2 = PersistedCheckpoint(process_a.pid, '2')
checkpoint_b1 = PersistedCheckpoint(process_b.pid, '1')
checkpoint_b2 = PersistedCheckpoint(process_b.pid, '2')
with tempfile.TemporaryDirectory() as directory:
persister = PicklePersister(directory)
persister.save_checkpoint(process_a, tag='1')
persister.save_checkpoint(process_a, tag='2')
persister.save_checkpoint(process_b, tag='1')
persister.save_checkpoint(process_b, tag='2')
checkpoints = [checkpoint_a1, checkpoint_a2]
retrieved_checkpoints = persister.get_process_checkpoints(
process_a.pid)
self.assertEquals(set(retrieved_checkpoints), set(checkpoints))
persister.delete_process_checkpoints(process_a.pid)
checkpoints = []
retrieved_checkpoints = persister.get_process_checkpoints(
process_a.pid)
self.assertEquals(set(retrieved_checkpoints), set(checkpoints))
def test_get_checkpoints_without_tags(self):
"""
"""
process_a = ProcessWithCheckpoint()
process_b = ProcessWithCheckpoint()
checkpoint_a = PersistedCheckpoint(process_a.pid, None)
checkpoint_b = PersistedCheckpoint(process_b.pid, None)
checkpoints = [checkpoint_a, checkpoint_b]
with tempfile.TemporaryDirectory() as directory:
persister = PicklePersister(directory)
persister.save_checkpoint(process_a)
persister.save_checkpoint(process_b)
retrieved_checkpoints = persister.get_checkpoints()
self.assertEquals(set(retrieved_checkpoints), set(checkpoints))
def test_save_load_roundtrip(self):
"""
Test the PicklePersister by taking a dummpy process, saving a checkpoint
and recreating it from the same checkpoint
"""
process = ProcessWithCheckpoint()
with tempfile.TemporaryDirectory() as directory:
persister = PicklePersister(directory)
persister.save_checkpoint(process)
bundle = persister.load_checkpoint(process.pid)
recreated = bundle.unbundle(loop=self.loop)