def test_last_data_set_from_experiment(dataset):
experiment = load_experiment(dataset.exp_id)
ds = experiment.last_data_set()
assert dataset.run_id == ds.run_id
assert dataset.name == ds.name
assert dataset.exp_id == ds.exp_id
assert dataset.exp_name == ds.exp_name
assert dataset.sample_name == ds.sample_name
assert dataset.path_to_db == ds.path_to_db
assert experiment.path_to_db == ds.path_to_db
def test_last_data_set_from_experiment_with_no_datasets(experiment):
with pytest.raises(ValueError,
match='There are no runs in this '
'experiment'):
_ = experiment.last_data_set()