def METHOD_NAME(self):
    #
    # Surrogate Pair code points are used in UTF-16 files to
    # encode the Supplementary Plane characters. But, a Surrogate
    # Pair code point which is not followed by another Surrogate
    # Pair code point might be interpreted as a single code point
    # with the Surrogate Pair code point.
    #
    # This test makes sure that BaseTools rejects these characters
    # if seen in a .uni file.
    #
    data = codecs.BOM_UTF16_LE + b'//\x01\xd8 '
    self.CheckFile(encoding=None, shouldPass=False, string=data)