def test_equal_2(self): self.assertEqual(how_much_coffee(['cw']), 1)
def test_equal_1(self): self.assertEqual(how_much_coffee([]), 0)
def test_equal_6(self): self.assertEqual(how_much_coffee(['cw', 'CAT', 'cw=others']), 3)
def test_equal_5(self): self.assertEqual(how_much_coffee(['cw', 'CAT', 'DOG']), 'You need extra sleep')
def test_equal_4(self): self.assertEqual(how_much_coffee(['cw', 'CAT']), 3)
def test_equal_3(self): self.assertEqual(how_much_coffee(['CW']), 2)