pens_test.py 文件源码

def diff(self, expected, actual):
        import difflib
        expected = str(self.Glyph(expected)).splitlines(True)
        actual = str(self.Glyph(actual)).splitlines(True)
        diff = difflib.unified_diff(
            expected, actual, fromfile='expected', tofile='actual')
        return "".join(diff)