assertDoesNotThrow(() -> outputStream.write(data, 5, 5)); // valid - will consume second mock (5)
    }

    @Test
    void testAppendMode() throws IOException, CIFSException {
        // Given
        when(mockTreeHandle.isSMB2()).thenReturn(true);
        when(mockTreeHandle.getSendBufferSize()).thenReturn(65536);