def test_union(self):
cases = [
(
'both sets are empty',
sut.SeeAlsoSet([]),
sut.SeeAlsoSet([]),
0,
),
(
'one empty and one non-empty',
sut.SeeAlsoSet([CustomCrossReferenceId('an_element')]),
sut.SeeAlsoSet([]),
1,
),
(
'two non-empty with different elements',
sut.SeeAlsoSet([CustomCrossReferenceId('a')]),
sut.SeeAlsoSet([CustomCrossReferenceId('b')]),
2,
),
(
'two non-empty with equal elements',
sut.SeeAlsoSet([CustomCrossReferenceId('a')]),
sut.SeeAlsoSet([CustomCrossReferenceId('a')]),
1,
),
]
for name, a, b, expected_size in cases:
with self.subTest(name=name):
actual = a.union(b)
self.assertEqual(expected_size, len(actual.see_also_items))
def test_elements_SHOULD_be_translated_to_see_also_items(self):
cases = [
NameAndValue('empty',
(sut.SeeAlsoSet([]), asrt.matches_sequence([]))),
NameAndValue('single cross ref',
(sut.SeeAlsoSet([CustomCrossReferenceId('target')]),
asrt.matches_sequence([is_see_also_item]))),
NameAndValue('single see also url info',
(sut.SeeAlsoSet([sut.SeeAlsoUrlInfo('name', 'url')]),
asrt.matches_sequence([is_see_also_item]))),
NameAndValue(' see also url info and cross ref', (sut.SeeAlsoSet([
sut.SeeAlsoUrlInfo('name', 'url'),
TestCasePhaseInstructionCrossReference('phase', 'instruction')
]), asrt.matches_sequence([is_see_also_item, is_see_also_item]))),
]
for case in cases:
see_also_set, assertion = case.value
with self.subTest(name=case.name):
# ACT #
actual = see_also_set.see_also_items
# ASSERT #
assertion.apply_without_message(self, actual)
def test_create_non_empty_with_duplicate_elements(self):
element = CustomCrossReferenceId('an_element')
actual = sut.SeeAlsoSet([element, element])
self.assertEqual(1, len(actual.see_also_items))
def test_create_empty(self):
actual = sut.SeeAlsoSet([])
self.assertEqual(0, len(actual.see_also_items))