}

    /**
     * Tests the readDataWireFormat method when the pipe's input stream is null.
     */
    @Test
    void testReadDataWireFormat_withNullPipeIn() {
        mockPipe.pipeIn = null;
        byte[] buffer = new byte[10];
        int len = 10;
        int result = response.readDataWireFormat(buffer, 0, len);