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_remove(self):
# Double check
set = HashSet(['Talent code', 'Outliers', 'Talking to strangers'])
assert set.size == 3 #started with 3 elements
set.remove('Talent code')
assert set.size == 2 #one element is removed
set.remove('Outliers')
assert set.size == 1 #second element removed
set.remove('Talking to strangers')
assert set.size == 0 #third element removed
def test_remove(self):
h = HashSet()
h.add("Egg")
h.add("Tuna")
h.remove("Egg")
assert h.size == 1
