def main():
input1 = sys.argv[1]
input2 = sys.argv[2]
addcalc = ScientificCalc()
result1 = addcalc.addition(input1, input2)
print(result1)
result2 = addcalc.subtraction(input1, input2)
print(result2)
result3 = addcalc.multiply(input1, input2)
print(result3)
result4 = addcalc.divide(input1, input2)
print(result4)
def test_addition(self):
"""calculating the positive addition value"""
calc = ScientificCalc()
self.assertEqual(calc.addition(2, 2), 4)
def test_error(self):
"""non integer inputs"""
calc = ScientificCalc()
self.assertEqual(calc.addition(2, 'a'), "Enter only numbers")