def test_cursorBackwardAfterApplicationData(self):
        """
        Application data bytes followed by a cursor-backward command are passed
        to a call to C{write} before the terminal's C{cursorBackward} method is
        called.
        """
        self._applicationDataTest(
            b'ab\x08', [
                ("write", (b"ab",)),
                ("cursorBackward",)])

        Application data bytes followed by a cursor-backward command are passed
        to a call to C{write} before the terminal's C{cursorBackward} method is
        called.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/conch/test/test_insults.py