def test_addition(self):
value = equation_solver.evaluate('2+3')
self.assertEqual(value, 5)
def test_rearrangement(self):
value = equation_solver.evaluate('2=84/ x')
self.assertEqual(value, 42)
def test_single_value(self):
value = equation_solver.evaluate('15')
self.assertEqual(value, 15)
def test_assignment(self):
value = equation_solver.evaluate(' x=14*3')
self.assertEqual(value, 42)
def test_brakets(self):
value = equation_solver.evaluate('6*(4-2)')
self.assertEqual(value, 12)
value = equation_solver.evaluate('(8/( 6 + (-2)))')
self.assertEqual(value, 2)
def test_division(self):
value = equation_solver.evaluate('-8 /4')
self.assertEqual(value, -2)
def test_multiplication(self):
value = equation_solver.evaluate('6*9')
self.assertEqual(value, 54)
def test_subtraction(self):
value = equation_solver.evaluate('7- 10')
self.assertEqual(value, -3)