test_re.py 文件源码

def test_compile(self):
        # Test return value when given string and pattern as parameter
        pattern = re.compile('random pattern')
        self.assertIsInstance(pattern, re._pattern_type)
        same_pattern = re.compile(pattern)
        self.assertIsInstance(same_pattern, re._pattern_type)
        self.assertIs(same_pattern, pattern)
        # Test behaviour when not given a string or pattern as parameter
        self.assertRaises(TypeError, re.compile, 0)