def test_delayed_backend(self):
"""Test initializing experiment data without a backend."""
exp_data = DbExperimentData(experiment_type="qiskit_test")
self.assertIsNone(exp_data.backend)
self.assertIsNone(exp_data.service)
exp_data.save_metadata()
a_job = mock.create_autospec(Job, instance=True)
exp_data.add_jobs(a_job)
self.assertIsNotNone(exp_data.backend)
self.assertIsNotNone(exp_data.service)
def test_save_metadata(self):
"""Test saving experiment metadata."""
exp_data = DbExperimentData(backend=self.backend, experiment_type="qiskit_test")
service = mock.create_autospec(DatabaseServiceV1, instance=True)
exp_data.service = service
exp_data.save_metadata()
service.create_experiment.assert_called_once()
_, kwargs = service.create_experiment.call_args
self.assertEqual(exp_data.experiment_id, kwargs["experiment_id"])
exp_data.save_metadata()
service.update_experiment.assert_called_once()
_, kwargs = service.update_experiment.call_args
self.assertEqual(exp_data.experiment_id, kwargs["experiment_id"])
