def test_equals_2(self):
     self.assertEqual(calculator(4, 5, 1), 'Walk')
 def test_equals(self):
     self.assertEqual(calculator(5, 6, 1), 'Bus')
 def test_equals_6(self):
     self.assertEqual(calculator(0.6, 0.4, 0), 'Walk')
 def test_equals_5(self):
     self.assertEqual(calculator(11, 15, 2), 'Bus')
 def test_equals_4(self):
     self.assertEqual(calculator(5, 4, 3), 'Walk')
 def test_equals_3(self):
     self.assertEqual(calculator(5, 8, 0), 'Walk')