def test_intersection_of_two_sets_with_shared_elements_is_a_set_of_the_shared_elements( self, ): set1 = CustomSet([1, 2, 3, 4]) set2 = CustomSet([3, 2, 5]) expected = CustomSet([2, 3]) self.assertEqual(set1.intersection(set2), expected)
def test_difference_of_two_non_empty_sets_is_a_set_of_elements_that_are_only_in_the_first_set( self, ): set1 = CustomSet([3, 2, 1]) set2 = CustomSet([2, 4]) expected = CustomSet([1, 3]) self.assertEqual(set1 - set2, expected)
def test_adding_existing_element_does_not_change_set(self): sut = CustomSet([1, 2, 3]) sut.add(3) expected = CustomSet([1, 2, 3]) self.assertEqual(sut, expected)
def test_difference_of_non_empty_sets_elements_in_first_set_only(self): set1 = CustomSet([3, 2, 1]) set2 = CustomSet([2, 4]) expected = CustomSet([1, 3]) self.assertEqual(set1 - set2, expected)
def test_union_of_non_empty_set_and_empty_set_is_the_non_empty_set(self): set1 = CustomSet([1, 3]) set2 = CustomSet() expected = CustomSet([1, 3]) self.assertEqual(set1 + set2, expected)
def test_intersection_contains_shared_elements_only(self): set1 = CustomSet([1, 2, 3, 4]) set2 = CustomSet([3, 2, 5]) expected = CustomSet([2, 3]) self.assertEqual(set1.intersection(set2), expected)
def test_difference_of_two_empty_sets_is_empty_set(self): set1 = CustomSet() set2 = CustomSet() expected = CustomSet() self.assertEqual(set1 - set2, expected)
def test_sets_disjoint_if_not_elements_are_shared(self): set1 = CustomSet([1, 2]) set2 = CustomSet([3, 4]) self.assertIs(set1.isdisjoint(set2), True)
def test_sets_with_same_exact_same_elements_are_equal(self): set1 = CustomSet([1, 2]) set2 = CustomSet([2, 1]) self.assertEqual(set1, set2)
def test_non_empty_set_is_not_subet_of_empty_set(self): set1 = CustomSet([1]) set2 = CustomSet() self.assertIs(set1.issubset(set2), False)
def test_set_is_subset_of_larger_set_with_same_elements(self): set1 = CustomSet([1, 2, 3]) set2 = CustomSet([4, 1, 2, 3]) self.assertIs(set1.issubset(set2), True)
def test_empty_set_is_subset_of_non_empty_set(self): set1 = CustomSet() set2 = CustomSet([1]) self.assertIs(set1.issubset(set2), True)
def test_intersection_of_sets_with_no_shared_elements_is_empty_set(self): set1 = CustomSet([1, 2, 3]) set2 = CustomSet([4, 5, 6]) expected = CustomSet() self.assertEqual(set1.intersection(set2), expected)
def test_intersection_of_non_empty_set_and_empty_set_is_empty_set(self): set1 = CustomSet([1, 2, 3, 4]) set2 = CustomSet() expected = CustomSet() self.assertEqual(set1.intersection(set2), expected)
def test_intersection_of_two_empty_sets_is_empty_set(self): set1 = CustomSet() set2 = CustomSet() expected = CustomSet() self.assertEqual(set1.intersection(set2), expected)
def test_set_not_subset_of_set_that_does_not_contain_its_elements(self): set1 = CustomSet([1, 2, 3]) set2 = CustomSet([4, 1, 3]) self.assertIs(set1.issubset(set2), False)
def test_non_empty_set_disjoint_with_empty_set(self): set1 = CustomSet([1]) set2 = CustomSet() self.assertIs(set1.isdisjoint(set2), True)
def test_empty_sets_are_equal(self): set1 = CustomSet() set2 = CustomSet() self.assertEqual(set1, set2)
def test_sets_not_disjoint_if_element_is_shared(self): set1 = CustomSet([1, 2]) set2 = CustomSet([2, 3]) self.assertIs(set1.isdisjoint(set2), False)
def test_add_to_non_empty_set(self): sut = CustomSet([1, 2, 4]) sut.add(3) expected = CustomSet([1, 2, 3, 4]) self.assertEqual(sut, expected)
def test_empty_set_contains_nothing(self): sut = CustomSet() self.assertNotIn(1, sut)
def test_sets_with_no_elements_are_empty(self): sut = CustomSet() self.assertIs(sut.isempty(), True)
def test_difference_of_non_empty_set_and_empty_set_is_non_empty_set(self): set1 = CustomSet([1, 2, 3, 4]) set2 = CustomSet() expected = CustomSet([1, 2, 3, 4]) self.assertEqual(set1 - set2, expected)
def test_union_of_non_empty_sets_contains_all_unique_elements(self): set1 = CustomSet([1, 3]) set2 = CustomSet([2, 3]) expected = CustomSet([1, 2, 3]) self.assertEqual(set1 + set2, expected)
def test_union_of_empty_sets_is_empty_set(self): set1 = CustomSet() set2 = CustomSet() expected = CustomSet() self.assertEqual(set1 + set2, expected)
def test_set_contains_when_element_in_set(self): sut = CustomSet([1]) self.assertIn(1, sut)
def test_sets_with_elements_are_not_empty(self): sut = CustomSet([1]) self.assertIs(sut.isempty(), False)
def test_set_does_not_contains_when_element_not_in_set(self): sut = CustomSet([1, 2, 3]) self.assertNotIn(4, sut)
def test_non_empty_set_not_equal_to_empty_set(self): set1 = CustomSet([1, 2, 3]) set2 = CustomSet() self.assertNotEqual(set1, set2)
from custom_set import CustomSet cs = CustomSet() cs.add('asdf') cs.add('asdggsdf') cs.add(3) cs.add(4.34) cs.add(7.983) for c in cs: print(c)
def test_add_to_empty_set(self): sut = CustomSet() sut.add(1) expected = CustomSet([1]) self.assertEqual(sut, expected)