def test_functions(self):
self.assertEqual(calculate('sin(1)'), math.sin(1))
self.assertEqual(calculate('cos(sin(exp(3)))'),
math.cos(math.sin(math.exp(3))))
self.assertEqual(calculate('hypot(3, 4)'), math.hypot(3, 4))
self.assertEqual(calculate('atan2(log10(123), expm1(4))'),
math.atan2(math.log10(123), math.expm1(4)))
def test_unary_operations(self):
self.assertEqual(calculate('+1'), 1)
self.assertEqual(calculate('-1'), -1)
self.assertEqual(calculate('++1'), ++1)
self.assertEqual(calculate('+--1'), +--1)
self.assertEqual(calculate('-+--1'), -+--1)
self.assertEqual(calculate('(-1)'), (-1))
self.assertEqual(calculate('1*-2'), 1 * -2)
self.assertEqual(calculate('2^-3'), 2**-3)
def test_binary_operations(self):
self.assertEqual(calculate('1+1'), 1 + 1)
self.assertEqual(calculate('1-2'), 1 - 2)
self.assertEqual(calculate('2*2'), 2 * 2)
self.assertEqual(calculate('4/5'), 4 / 5)
self.assertEqual(calculate('5%4'), 5 % 4)
self.assertEqual(calculate('5//4'), 5 // 4)
self.assertEqual(calculate('2^4'), 2**4)
def test_general_expressions(self):
self.assertEqual(calculate('.123'), .123)
self.assertEqual(calculate('pi*(12.34+.234)'),
math.pi * (12.34 + .234))
self.assertEqual(calculate('123-2+4%5'), 123 - 2 + 4 % 5)
self.assertEqual(calculate('(1234*34567+1)^2'), (1234 * 34567 + 1)**2)
self.assertEqual(calculate('--+-(234*e/pi+(3-2)^2)'),
--+-(234 * math.e / math.pi + (3 - 2)**2))
self.assertEqual(calculate('pi*(12.34+.234)'),
math.pi * (12.34 + .234))
self.assertEqual(calculate('2^-5==2'), 2**-5 == 2)
self.assertEqual(calculate('12.345 - 12 + 9.0'), 12.345 - 12 + 9.0)
self.assertEqual(calculate('cos(3^2)-hypot(tau, log(12))'),
math.cos(3**2) - math.hypot(math.tau, math.log(12)))
self.assertEqual(calculate('-+--23+--3.45*-e'),
-+--23 + --3.45 * -math.e)
self.assertEqual(calculate('5^0-45*(3.45-(-cos(4)/3))'),
5**0 - 45 * (3.45 - (-math.cos(4) / 3)))
self.assertEqual(calculate('log(cos(round(abs(-3456))))'),
math.log(math.cos(round(abs(-3456)))))
def test_comparison(self):
self.assertTrue(calculate('1-2*3==1-2*3'))
self.assertTrue(calculate('2*4>1'))
self.assertTrue(calculate('3<log(4)*4'))
self.assertTrue(calculate('pi>=e'))
self.assertTrue(calculate('4>=4'))
self.assertTrue(calculate('3<=4'))
self.assertTrue(calculate('pi<=pi'))
self.assertTrue(calculate('4!=5-4'))
self.assertFalse(calculate('1==2'))
self.assertFalse(calculate('0>1'))
self.assertFalse(calculate('5<4'))
self.assertFalse(calculate('4>=5'))
self.assertFalse(calculate('5<=4'))
self.assertFalse(calculate('4!=4'))
def test_constants(self):
self.assertEqual(calculate('pi+tau*e'), math.pi + math.tau * math.e)
self.assertEqual(calculate('inf'), math.inf)
def test_brackets(self):
self.assertEqual(calculate('(1)'), (1))
self.assertEqual(calculate('2*(3+4)'), 2 * (3 + 4))
self.assertEqual(calculate('(2-(3-(4+5)))'), (2 - (3 - (4 + 5))))
self.assertEqual(calculate('(((2+3)))'), (((2 + 3))))
def test_precedence(self):
self.assertEqual(calculate('2-3+4'), 2 - 3 + 4)
self.assertEqual(calculate('2/3*4//5%6'), 2 / 3 * 4 // 5 % 6)
self.assertEqual(calculate('2^3^4'), 2**3**4)
self.assertEqual(calculate('2*3+4^5'), 2 * 3 + 4**5)