def test_contains(self):
elements = ['P', 'C', 'X', 'U']
set = HashSet(elements)
assert set.contains('P') is True
assert set.contains('C') is True
assert set.contains('U') is True
assert set.contains('D') is False
assert set.contains('J') is False
def test_contains(self):
elements = ['K', 'Q', 'J', 'O']
set = HashSet(elements)
assert set.contains('K') is True
assert set.contains('J') is True
assert set.contains('Q') is True
assert set.contains('C') is False
assert set.contains('W') is False
def test_add(self):
elements = ['J', 'K']
set = HashSet(elements)
set.add('P')
set.add('E')
with self.assertRaises(KeyError):
set.add('K') # Element already exists
with self.assertRaises(KeyError):
set.add('E') # Element already exists
assert set.size is 4
assert set.contains('P') is True
assert set.contains('E') is True
def test_remove(self):
elements = ['U', '8', 'Q', 'D']
set = HashSet(elements)
with self.assertRaises(KeyError):
set.remove('K') # Element doesn't exist
with self.assertRaises(KeyError):
set.remove('0') # Element doesn't exist
set.remove('U')
set.remove('Q')
assert set.contains('U') is False
assert set.contains('Q') is False
with self.assertRaises(KeyError):
set.remove('Q') # Element doesn't exist anymore
def test_remove(self):
elements = ['Z', 'I', 'Q', '4', 'S']
set = HashSet(elements)
with self.assertRaises(KeyError):
set.remove('A') # Element doesn not exist
with self.assertRaises(KeyError):
set.remove('X') # Element does not exist
set.remove('Z')
set.remove('4')
assert set.contains('Z') is False
assert set.contains('4') is False
with self.assertRaises(KeyError):
set.remove('Z') # Element does not exist anymore
def test_contains(self):
h = HashSet()
h.add("Mondale")
assert h.contains("Mondale") == True
assert h.contains("Alfred") == False
def test_contains(self):
set = HashSet(['Master of the Game', 'After the darkness'])
assert set.contains('Master of the Game') == True
assert set.contains('After the darkness') == True
assert set.contains('Dertogada') == False