def test_rad_string(self):
'''check for exception'''
calc = ScientificCalc()
self.assertEqual(calc.rad("abc"), "Value Error")
def test_rad_negfloat(self):
'''check for negative float'''
calc = ScientificCalc()
self.assertEqual(calc.rad(-4.5), -0.07853981633974483)
def test_rad_posfloat(self):
'''check for positive float '''
calc = ScientificCalc()
self.assertAlmostEqual(calc.rad(2.5), 0.04363323129985824)
def test_rad_negative(self):
'''check for negative integers'''
calc = ScientificCalc()
self.assertEqual(calc.rad(-1), -0.017453292519943295)
def test_rad_positive(self):
'''check for positive integers'''
calc = ScientificCalc()
self.assertEqual(calc.rad(1), 0.017453292519943295)
def test_rad_zero(self):
'''check for zero'''
calc = ScientificCalc()
self.assertEqual(calc.rad(0), 0)