def test_large_decimal(self):
     self.assertEqual(minus(1000000.05, 999999.55), 0.5)
 def test_large_positive_negative(self):
     self.assertEqual(minus(153000000,-76900000), 229900000)
 def test_large_numbers(self):
     self.assertEqual(minus(20072366,7598832), 12473534)
 def test_decimal(self):
     self.assertEqual(minus(251.2,52.1), 199.1)
 def test_negative_positive(self):
     self.assertEqual(minus(-45,5), -50)
 def test_positive_positive(self):
     self.assertEqual(minus(55,15), 40)