def test_validation_passes(self, rules):
"""Test that validation passes when the rules pass."""
instance = Mock()
serializer = Mock(instance=instance,
error_messages={'error': 'test error'})
validator = RulesBasedValidator(*rules)
validator.set_context(serializer)
assert validator({}) is None
def test_validation_fails(self, rules, errors):
"""Test that validation fails when any rule fails."""
instance = Mock()
serializer = Mock(
instance=instance,
error_messages={
'error': 'test error',
'error2': 'test error 2',
},
)
validator = RulesBasedValidator(*rules)
validator.set_context(serializer)
with pytest.raises(ValidationError) as excinfo:
validator({})
assert excinfo.value.detail == errors