def test__check_proposals_proposals_gt_cardinality(self):
"""Test that ``ValueError`` is being raised if ``proposals`` is greater than
``self.tunable.cardinality``.
"""
# setup
instance = MagicMock()
instance.tunable.cardinality = 4
# run / assert
with self.assertRaises(ValueError):
BaseTuner._check_proposals(instance, 5)
def test__check_proposals_trials_and_proposals_gt_cardinality(self):
"""Test that ``ValueError`` is being raised if ``proposals`` + ``len(self.trials)``
is greater than ``self.tunable.cardinality``.
"""
# setup
instance = MagicMock()
instance.tunable.cardinality = 4
instance._trials_set.__len__.return_value = 2
# run / assert
with self.assertRaises(ValueError):
BaseTuner._check_proposals(instance, 3)
def test__check_proposals_trials_eq_cardinality(self):
"""Test that ``ValueError`` is being raised if ``self.trials`` is equal to
``self.tunable.cardinality``.
"""
# setup
instance = MagicMock()
instance.tunable.cardinality = 2
instance._trials_set.__len__.return_value = 2
# run / assert
with self.assertRaises(ValueError):
BaseTuner._check_proposals(instance, 1)
def test__check_proposals_not_raise(self):
"""Test that ``ValueError`` is not being raised."""
# setup
instance = MagicMock()
instance.tunable.cardinality = 4
instance._trials_set.__len__.return_value = 2
# run / assert
result = BaseTuner._check_proposals(instance, 1)
assert result is None