private void FsCtl_Get_Compression_IsCompressionSupported(FileType fileType)
        {
            BaseTestSite.Log.Add(LogEntryKind.TestStep, "Test case steps:");
            MessageStatus status;

            //Step 1: Create file
            BaseTestSite.Log.Add(LogEntryKind.TestStep, "1. Create " + fileType.ToString());
            status = this.fsaAdapter.CreateFile(fileType);

            //Step 2: FSCTL request with FSCTL_GET_COMPRESSION
            FSCTL_GET_COMPRESSION_Reply compressionReply = new FSCTL_GET_COMPRESSION_Reply();
            uint outputBufferSize = (uint)TypeMarshal.ToBytes<FSCTL_GET_COMPRESSION_Reply>(compressionReply).Length;

            long bytesReturned;
            byte[] outputBuffer = new byte[0];

            BaseTestSite.Log.Add(LogEntryKind.TestStep, "2. FSCTL request with FSCTL_GET_COMPRESSION");
            status = this.fsaAdapter.FsCtlGetCompression(outputBufferSize, out bytesReturned, out outputBuffer);

            //Step 3: Verify test result
            BaseTestSite.Log.Add(LogEntryKind.TestStep, "3. Verify returned NTSTATUS code.");
            // 2.1.5.9.7   FSCTL_GET_COMPRESSION
            // <64> Section 2.1.5.9.7: This is only implemented by the NTFS and ReFS file systems.
            if (this.fsaAdapter.FileSystem == FileSystem.NTFS || this.fsaAdapter.FileSystem == FileSystem.REFS)
            {
                this.fsaAdapter.AssertAreEqual(this.Manager, MessageStatus.SUCCESS, status, "FSCTL_GET_COMPRESSION is supported, status set to STATUS_SUCCESS.");
            }
            else
            {
                this.fsaAdapter.AssertAreEqual(this.Manager, MessageStatus.INVALID_DEVICE_REQUEST, status,
                        "If the object store does not implement this functionality, the operation MUST be failed with STATUS_INVALID_DEVICE_REQUEST.");
            }
        }
        private void AlternateDataStream_FsCtl_Get_Compression(FileType fileType)
        {
            //Prerequisites: Create streams on a newly created file

            //Step 1: FSCTL request with FSCTL_SET_COMPRESSION
            FSCTL_SET_COMPRESSION_Request setCompressionRequest = new FSCTL_SET_COMPRESSION_Request();
            setCompressionRequest.CompressionState = FSCTL_SET_COMPRESSION_Request_CompressionState_Values.COMPRESSION_FORMAT_DEFAULT;
            uint inputBufferSize = (uint)TypeMarshal.ToBytes<FSCTL_SET_COMPRESSION_Request>(setCompressionRequest).Length;

            BaseTestSite.Log.Add(LogEntryKind.TestStep, "{0}. FSCTL request with FSCTL_SET_COMPRESSION", ++testStep);
            status = this.fsaAdapter.FsCtlSetCompression(setCompressionRequest, inputBufferSize);
            if (this.fsaAdapter.IsCompressionSupported == false)
            {
                if (this.fsaAdapter.FileSystem == FileSystem.REFS)
                {
                    this.fsaAdapter.AssertAreEqual(this.Manager, MessageStatus.NOT_SUPPORTED, status,
                        ("For ReFS, it is only supported and returns STATUS_SUCCESS when CompressionState is set to COMPRESSION_FORMAT_NONE. " +
                         "The method fails with STATUS_NOT_SUPPORTED for any other value of CompressionState."));
                }
                else
                {
                    this.fsaAdapter.AssertAreEqual(this.Manager, MessageStatus.INVALID_DEVICE_REQUEST, status,
                        "If the object store does not implement this functionality, the operation MUST be failed with STATUS_INVALID_DEVICE_REQUEST.");
                }
            }
            else
            {
                if (fileType == FileType.DirectoryFile && this.fsaAdapter.FileSystem == FileSystem.CSVFS)
                {
                    this.fsaAdapter.AssertAreEqual(this.Manager, MessageStatus.ACCESS_DENIED, status, "CSVFS does not support setting compressed attribute on the folders.");
                }
                else
                {
                    this.fsaAdapter.AssertAreEqual(this.Manager, MessageStatus.SUCCESS, status, "COMPRESSION is supported, status set to STATUS_SUCCESS.");
                }
            }

            //Step 2: FSCTL request with FSCTL_GET_COMPRESSION
            FSCTL_GET_COMPRESSION_Reply compressionReply = new FSCTL_GET_COMPRESSION_Reply();
            uint outputBufferSize = (uint)TypeMarshal.ToBytes<FSCTL_GET_COMPRESSION_Reply>(compressionReply).Length;

            long bytesReturned;
            byte[] outputBuffer = new byte[0];

            BaseTestSite.Log.Add(LogEntryKind.TestStep, "{0}. FSCTL request with FSCTL_GET_COMPRESSION", ++testStep);
            status = this.fsaAdapter.FsCtlGetCompression(outputBufferSize, out bytesReturned, out outputBuffer);
            // 2.1.5.9.7   FSCTL_GET_COMPRESSION
            // <64> Section 2.1.5.9.7: This is only implemented by the NTFS and ReFS file systems.
            if (this.fsaAdapter.FileSystem == FileSystem.NTFS || this.fsaAdapter.FileSystem == FileSystem.REFS)
            {
                this.fsaAdapter.AssertAreEqual(this.Manager, MessageStatus.SUCCESS, status, "FSCTL_GET_COMPRESSION is supported, status set to STATUS_SUCCESS.");
                compressionReply = TypeMarshal.ToStruct<FSCTL_GET_COMPRESSION_Reply>(outputBuffer);
                // [MS-FSCC] 2.3.49	FSCTL_SET_COMPRESSION Request
                // <39> Section 2.3.49: Equivalent to COMPRESSION_FORMAT_LZNT1.
                this.fsaAdapter.AssertAreEqual(this.Manager, CompressionState_Values.COMPRESSION_FORMAT_LZNT1, compressionReply.CompressionState, "FSCTL_GET_COMPRESSION.CompressionState should match with what has been assigned to the file.");
            }
            else
            {
                this.fsaAdapter.AssertAreEqual(this.Manager, MessageStatus.INVALID_DEVICE_REQUEST, status,
                        "If the object store does not implement this functionality, the operation MUST be failed with STATUS_INVALID_DEVICE_REQUEST.");
            }
        }