def test_warn_once():
"""Checks if session misuse warning is only shown once per function."""
with pytest.warns(UserWarning) as record:
assert not load_checkpoint()
assert not load_checkpoint()
assert not save_checkpoint(x=2)
assert not report(x=2)
assert not report(x=3)
assert not get_dataset_shard()
# Should only warn once.
assert len(record) == 4
def train_func():
for i in range(2):
save_checkpoint(epoch=i)
checkpoint = load_checkpoint()
assert checkpoint["epoch"] == i