def test_verifier_builder_add_constraint(self):
aA = jp.PathPredicate('a', jp.STR_EQ('A'))
bB = jp.PathPredicate('b', jp.STR_EQ('B'))
builder = jc.ValueObservationVerifierBuilder('TestAddConstraint')
builder.EXPECT(aA).AND(bB)
verifier = builder.build()
self.assertEqual('TestAddConstraint', verifier.title)
self.assertEqual([[
jc.ObservationValuePredicate(aA),
jc.ObservationValuePredicate(bB)
]], verifier.dnf_verifiers)
def test_verifier_builder_contains_pred_list(self):
aA = jp.PathPredicate('a', jp.STR_EQ('A'))
bB = jp.PathPredicate('b', jp.STR_EQ('B'))
builder = jc.ValueObservationVerifierBuilder('TestContainsGroup')
builder.contains_path_pred('a', jp.STR_EQ('A'))
builder.contains_path_pred('b', jp.STR_EQ('B'))
verifier = builder.build()
count_aA = jp.CardinalityPredicate(aA, 1, None)
count_bB = jp.CardinalityPredicate(bB, 1, None)
self.assertEqual([[
jc.ObservationValuePredicate(count_aA),
jc.ObservationValuePredicate(count_bB)
]], verifier.dnf_verifiers)
def test_observation_failure_or_found(self):
context = ExecutionContext()
observation = jc.Observation()
observation.add_object(_LETTER_DICT)
failure_predicate = jc.ObservationErrorPredicate(
jp.ExceptionMatchesPredicate(ValueError, regex='an error'))
failure_result = failure_predicate(context, observation)
self.assertFalse(failure_result)
good_predicate = jc.ObservationValuePredicate(
jp.PathPredicate('a', jp.STR_EQ('A')))
builder = jc.ObservationVerifierBuilder('TestAddConstraint')
verifier = (
builder.EXPECT(failure_predicate).OR(good_predicate).build())
expect = jc.ObservationVerifyResult(
valid=True,
observation=observation,
bad_results=[failure_result],
good_results=[good_predicate(context, observation)],
failed_constraints=[])
got = verifier(context, observation)
self.assertEqual(expect, got)
def test_object_observation_verifier_with_conditional(self):
# We need strict True here because we want each object to pass
# the constraint test. Otherwise, if any object passes, then the whole
# observation would pass. This causes a problem when we say that
# we dont ever want to see 'name' unless it has a particular 'value'.
# Without strict test, we'd allow this to occur as long as another object
# satisfied that constraint.
# When we use 'excludes', it applies to the whole observation since this
# is normally the intent. However, here we are excluding values under
# certain context -- "If the 'name' field is 'NAME' then it must contain
# a value field 'VALUE'". Excluding name='NAME' everywhere would
# not permit the context where value='VALUE' which we want to permit.
verifier_builder = jc.ValueObservationVerifierBuilder(
title='Test Conditional', strict=True)
name_eq_pred = jp.PathEqPredicate('name', 'NAME')
value_eq_pred = jp.PathEqPredicate('value', 'VALUE')
conditional = jp.IF(name_eq_pred, value_eq_pred)
pred_list = [jp.PathPredicate('', conditional)]
verifier_builder.add_constraint(conditional)
match_name_value_obj = {'name': 'NAME', 'value': 'VALUE'}
match_value_not_name_obj = {'name': 'GOOD', 'value': 'VALUE'}
match_neither_obj = {'name': 'GOOD', 'value': 'GOOD'}
match_name_not_value_obj = {'name': 'NAME', 'value': 'BAD'} # bad
test_cases = [(True, [match_name_value_obj, match_neither_obj]),
(True, [match_value_not_name_obj, match_neither_obj]),
(False, [match_neither_obj, match_name_not_value_obj])]
context = ExecutionContext()
verifier = verifier_builder.build()
for test in test_cases:
observation = jc.Observation()
result_builder = jc.ObservationVerifyResultBuilder(observation)
expect_valid = test[0]
obj_list = test[1]
observation.add_all_objects(obj_list)
result_builder.add_observation_predicate_result(
jc.ObservationValuePredicate(conditional)(context,
observation))
# All of these tests succeed.
verify_results = result_builder.build(expect_valid)
try:
self._try_verify(context, verifier, observation, expect_valid,
verify_results)
except:
print 'testing {0}'.format(obj_list)
raise
def test_object_observation_verifier_multiple_constraint_found(self):
context = ExecutionContext()
pred_list = [
jp.PathPredicate('a', jp.STR_EQ('A')),
jp.PathPredicate('b', jp.STR_EQ('B'))
]
# This is our object verifier for these tests.
verifier = (jc.ValueObservationVerifierBuilder('Find Both').EXPECT(
pred_list[0]).AND(pred_list[1]).build())
test_cases = [('dict', _LETTER_DICT), ('array', _DICT_ARRAY),
('multi', _MULTI_ARRAY)]
for test in test_cases:
observation = jc.Observation()
builder = jc.ObservationVerifyResultBuilder(observation)
obj = test[1]
if isinstance(test, list):
observation.add_all_objects(obj)
else:
observation.add_object(obj)
for pred in pred_list:
builder.add_observation_predicate_result(
jc.ObservationValuePredicate(pred)(context, observation))
# All of these tests succeed.
verify_results = builder.build(True)
self.assertEqual([], verify_results.failed_constraints)
try:
self._try_verify(context, verifier, observation, True,
verify_results)
except:
print 'testing {0}'.format(test[0])
raise
