def doMath(op, op1, op2):
if op == "*":
return Mathlibrary.mul(op1, op2)
elif op == "/":
return Mathlibrary.div(op1, op2)
elif op == "+":
return Mathlibrary.add(op1, op2)
elif op == "√":
return Mathlibrary.root(op2, op1)
elif op == "^":
return Mathlibrary.pow(op1, op2)
else:
return Mathlibrary.sub(op1, op2)
class MathLibraryTestRoot(unittest.TestCase):
def setUp(self):
self.mathlib = Mathlibrary()
def testRootNegativeExponent(self):
with self.assertRaises(ValueError):
self.mathlib.root(5, -2)
with self.assertRaises(ValueError):
self.mathlib.root(42, -421)
def testRootFloatExponent(self):
with self.assertRaises(ValueError):
self.mathlib.root(2, 0.00001)
with self.assertRaises(ValueError):
self.mathlib.root(4194, 12.4201412)
with self.assertRaises(ValueError):
self.mathlib.root(935295, 75392.000001)
def testRootEvenNegativeBase(self):
with self.assertRaises(ValueError):
self.mathlib.root(-3, 6)
with self.assertRaises(ValueError):
self.mathlib.root(-7318, 4917912)
def testRootFractionNegativeBase(self):
with self.assertRaises(ValueError):
self.mathlib.root(-0.5, 6)
with self.assertRaises(ValueError):
self.mathlib.root(-1.2, 4917912)
def testRootZeroExponent(self):
with self.assertRaises(ValueError):
self.mathlib.root(2, 0)
def testRootNaturalExponent(self):
self.assertEqual(self.mathlib.root(4, 2), 2)
self.assertEqual(self.mathlib.root(-27, 3), -3)
self.assertEqual(self.mathlib.root(907784931546351634835748413459499319296, 24), 42)
self.assertEqual(self.mathlib.root(-62748517, 7), -13)
self.assertEqual(self.mathlib.root(109418989131512359209, 42), 3)