def test_difference(self):
set_A = Sets()
set_B = Sets()
set_A.add('Ronaldo')
set_A.add('Mbappe')
set_A.add('Neymar')
set_A.add('Messi')
set_B.add('Rashford')
set_B.add('Mbappe')
set_B.add('Neymar')
set_B.add('DeBruyne')
difference_result = set_A.difference(set_B)
assert type(difference_result) == list # should return a list
assert set_A.size == 4 # set A should retain its original size
assert set_B.size == 4 # set B should retain its original size
# Testing for Element in SET A not in SET B
assert 'Ronaldo' in difference_result
assert 'Messi' in difference_result
# Testing intersecting elements are not in the difference
assert 'Neymar' not in difference_result
assert 'Mbappe' not in difference_result
# Testing for Element in SET B not in SET A
difference_result = set_B.difference(set_A)
assert 'DeBruyne' in difference_result
assert 'Rashford' in difference_result
def test_difference(self):
first_set = Sets([2, 3, 4, 5, 6])
second_set = Sets([1, 2, 3, 4])
difference_set = first_set.difference(second_set)
assert difference_set.size == 2
assert difference_set.contains(5) == True
assert difference_set.contains(6) == True
assert difference_set.contains(1) == False
assert difference_set.contains(2) == False
assert difference_set.contains(3) == False
assert difference_set.contains(4) == False
def test_difference(self):
s1 = Sets(['A', 'B', 'C', 'D'])
s2 = Sets(['A', 'B', 'C', 'D', 'E'])
new_set = s1.difference(s2)
self.assertCountEqual(new_set.set_struct.keys(), [])
s1 = Sets(['A', 'B', 'C', 'D'])
s2 = Sets(['A', 'B', 'C', 'D', 'E'])
new_set = s2.difference(s1)
self.assertCountEqual(new_set.set_struct.keys(), ['E'])
s1 = Sets(['A', 'B', 'C'])
s2 = Sets(['B', 'C', 'D'])
new_set = s1.difference(s2)
self.assertCountEqual(new_set.set_struct.keys(), ['A'])
s1 = Sets(['A', 'B', 'C'])
s2 = Sets(['D', 'E', 'F'])
new_set = s1.difference(s2)
self.assertCountEqual(new_set.set_struct.keys(), ['A', 'B', 'C'])