}

        @Test
        @DisplayName("Should return correct file system information class")
        void shouldReturnCorrectFileSystemInformationClass() {
            assertEquals(FileSystemInformation.FS_SIZE_INFO, fileFsSizeInfo.getFileSystemInformationClass());
        }
    }

    @Nested
    @DisplayName("Decode Method Tests")
    class DecodeMethodTests {

        @Test

    private AllocInfo fetchAllocationInfo(final SmbTreeHandleImpl th) throws CIFSException, SmbException {
        AllocInfo ai;
        try {
            ai = queryFSInformation(th, AllocInfo.class, FileSystemInformation.FS_SIZE_INFO);
        } catch (final SmbException ex) {
            log.debug("getDiskFreeSpace", ex);
            switch (ex.getNtStatus()) {
            case NtStatus.NT_STATUS_INVALID_INFO_CLASS: