def test_contradicts_if_present_one_absent(self):
shot_fact = Fact(
predicate=Predicate(content="$shooter shot $victim"),
terms=[Entity(name="Alice"),
Entity(name="Bob")],
)
shot_false = Fact(
predicate=Predicate(content="$shooter shot $victim", truth=False),
terms=[Entity(name="Alice"),
Entity(name="Bob")],
absent=True,
)
assert shot_fact._contradicts_if_present(shot_false, ContextRegister())
assert shot_false._contradicts_if_present(shot_fact, ContextRegister())
def test_contradicts_if_present_both_present(self):
"""
Test a helper function that checks whether there would
be a contradiction if neither Factor was "absent".
"""
shot_fact = Fact(
predicate=Predicate(content="$shooter shot $victim"),
terms=[Entity(name="Alice"),
Entity(name="Bob")],
)
shot_false = Fact(
predicate=Predicate(content="$shooter shot $victim", truth=False),
terms=[Entity(name="Alice"),
Entity(name="Bob")],
)
assert shot_fact._contradicts_if_present(shot_false, ContextRegister())
assert shot_false._contradicts_if_present(shot_fact, ContextRegister())
