def test_equal_2(self): self.assertEqual(esrever('a small lOan OF 1,000,000 $!'), '$ 000,000,1 FO naOl llams a!')
def test_equal_1(self): self.assertEqual(esrever('an Easy one?'), 'eno ysaE na?')
def test_equal_4(self): self.assertEqual(esrever('b3tTer p4ss thIS 0ne.'), 'en0 SIht ss4p reTt3b.')
def test_equal_5(self): self.assertEqual(esrever(''), '')
def test_equal_3(self): self.assertEqual(esrever('<?> &!.".'), '".!& >?<.')