def test_code_change_backward_unsure(self, trials):
"""Test :meth:`orion.core.evc.adapters.CodeChange.backward` with change type UNSURE"""
code_change_adapter = CodeChange(CodeChange.UNSURE)
adapted_trials = code_change_adapter.backward(trials)
assert len(adapted_trials) == 0
def test_code_change_backward_break(self, trials):
"""Test :meth:`orion.core.evc.adapters.CodeChange.backward` with change type BREAK"""
code_change_adapter = CodeChange(CodeChange.BREAK)
adapted_trials = code_change_adapter.backward(trials)
assert len(adapted_trials) == 0
def test_code_change_backward_noeffect(self, trials):
"""Test :meth:`orion.core.evc.adapters.CodeChange.backward` with change type NOEFFECT"""
code_change_adapter = CodeChange(CodeChange.NOEFFECT)
adapted_trials = code_change_adapter.backward(trials)
assert len(adapted_trials) == len(trials)
assert adapted_trials[0] is trials[0]
assert adapted_trials[-1] is trials[-1]