def test_division(self):
"""
Test for division
"""
self.assertEqual(solve("1/1"), self._eval("1 / 1."))
self.assertEqual(solve("10 /7"), self._eval("10 / 7."))
self.assertEqual(solve("1/-1"), self._eval("1 / -1."))
def test_multiplication(self):
"""
Test for multiplication
"""
self.assertEqual(solve("1*1"), 1 * 1)
self.assertEqual(solve("10 *7"), 10 * 7)
self.assertEqual(solve("1*-1"), 1 * -1)
def test_subtraction(self):
"""
Test for subtraction
"""
self.assertEqual(solve("1-1"), 1 - 1)
self.assertEqual(solve("10 -7"), 10 - 7)
self.assertEqual(solve("1--1"), 1 - -1)
def test_addition(self):
"""
Test for addtion
"""
self.assertEqual(solve("1+1"), 1 + 1)
self.assertEqual(solve("10 +7"), 10 + 7)
self.assertEqual(solve("1+-1"), 1 + -1)
def test_precedence_and_combination(self):
"""
Test the combination of several calculations
"""
exp = "(2+2)*log(10)/3"
self.assertEqual(solve(exp), self._eval(exp))
def test_precedence(self):
"""
Test for precedence
"""
exp = "5*3*(8-23)"
self.assertEqual(solve(exp), self._eval(exp))
def test_logarithm(self):
"""
Test for logarithm
"""
self.assertEqual(solve("log(1)"), self._eval("log(1)"))
self.assertEqual(solve("log(2)"), self._eval("log(2)"))
