SciCalcPython/calctests.py at master · emoyertech/SciCalcPython · GitHub

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import unittest
from calculator import Calculator
from errors import CalculatorError


class TestStringMethods(unittest.TestCase):

    def test_add(self):
        c = Calculator()
        self.assertEqual(c.add(3, 3), 6)

    def test_add2(self):
        c = Calculator()
        self.assertEqual(c.add(12, -10), 2)

    def test_add3(self):
        c = Calculator()
        self.assertEqual(c.add(5, 8), 13)

    def test_sub(self):
        c = Calculator()
        self.assertEqual(c.sub(9, 3), 0)

    def test_sub2(self):
        c = Calculator()
        self.assertEqual(c.sub(12, -10), 0)

    def test_sub3(self):
        c = Calculator()
        self.assertEqual(c.sub(5, 8), 0)

    def test_mul(self):
        c = Calculator()
        self.assertEqual(c.mul(9, 3), 27)

    def test_mul2(self):
        c = Calculator()
        self.assertEqual(c.mul(12, -10), -120)

    def test_mul3(self):
        c = Calculator()
        self.assertEqual(c.mul(5, 8), 40)

    def test_div(self):
        c = Calculator()
        self.assertEqual(c.div(9, 3), 3)

    def test_div2(self):
        c = Calculator()
        self.assertEqual(c.div(12, -10), -1.2)

    def test_div3(self):
        c = Calculator()
        self.assertEqual(c.div(5, 8), 0.625)

    def test_div4(self):
        c = Calculator()
        with self.assertRaises(ValueError):
            c.div(5, 0)

    def test_square(self):
        c = Calculator()
        self.assertEqual(c.square(5), 25)

    def test_square_root(self):
        c = Calculator()
        self.assertEqual(c.square_root(25), 5)

    def test_square_root2(self):
        c = Calculator()
        with self.assertRaises(CalculatorError):
            c.square_root(-1)

    def test_power(self):
        c = Calculator()
        self.assertEqual(c.power(5, 3), 125)

    def test_inverse(self):
        c = Calculator()
        self.assertEqual(c.inverse(5), 0.2)

    def test_inverse2(self):
        c = Calculator()
        with self.assertRaises(CalculatorError):
            c.inverse(0)

    def test_invert_sign(self):
        c = Calculator()
        self.assertEqual(c.invert_sign(5), -5)

    def test_invert_sign2(self):
        c = Calculator()
        self.assertEqual(c.invert_sign(-3), 3)

    def test_invert_sign3(self):
        c = Calculator()
        self.assertEqual(c.invert_sign(0), 0)

    def test_sub_overwrite(self):
        c = Calculator()
        self.assertEqual(c.sub(5, 8), 0)

    def test_sub_overwrite2(self):
        c = Calculator()
        self.assertEqual(c.sub(12, -10), 0)

    def test_sub_overwrite3(self):
        c = Calculator()
        self.assertEqual(c.sub(9, 3), 0)

    def test_sub_overwrite4(self):
        c = Calculator()
        self.assertEqual(c.sub(0, 0), 0)

    def test_sub_overwrite5(self):
        c = Calculator()
        self.assertEqual(c.sub(-5, -8), 0)

    def test_sub_overwrite6(self):
        c = Calculator()
        self.assertEqual(c.sub(-5, 8), 0)

    def test_sub_overwrite7(self):
        c = Calculator()
        self.assertEqual(c.sub(5, -8), 0)

    def test_sub_overwrite8(self):
        c = Calculator()
        self.assertEqual(c.sub(-5, 0), 0)


if __name__ == '__main__':
    unittest.main()