unit tests

src/FrostFS.SDK.ClientV2/FrostFSClient.cs

@@ -294,6 +294,16 @@ public class FrostFSClient : IFrostFSClient
         return service.GetRangeAsync(args);
     }
 
+    public Task<IEnumerable<ReadOnlyMemory<byte>>> GetRangeHashAsync(PrmRangeHashGet args)
+    {
+        if (args is null)
+            throw new ArgumentNullException(nameof(args));
+
+        var service = GetObjectService(args);
+        return service.GetRangeHashAsync(args);
+    }
+
+
     public Task<FrostFsObjectId> PutObjectAsync(PrmObjectPut args)
     {
         if (args is null)
@@ -312,7 +322,7 @@ public class FrostFSClient : IFrostFSClient
         return service.PutSingleObjectAsync(args);
     }
 
-    public Task PatchObjectAsync(PrmObjectPatch args)
+    public Task<FrostFsObjectId> PatchObjectAsync(PrmObjectPatch args)
     {
         if (args is null)
         {

src/FrostFS.SDK.ClientV2/Interfaces/IFrostFSClient.cs

@@ -44,11 +44,13 @@ public interface IFrostFSClient : IDisposable
 
     Task<RangeReader> GetRangeAsync(PrmRangeGet args);
 
+    Task<IEnumerable<ReadOnlyMemory<byte>>> GetRangeHashAsync(PrmRangeHashGet args);
+
     Task<FrostFsObjectId> PutObjectAsync(PrmObjectPut args);
 
     Task<FrostFsObjectId> PutSingleObjectAsync(PrmSingleObjectPut args);
 
-    Task PatchObjectAsync(PrmObjectPatch args);
+    Task<FrostFsObjectId> PatchObjectAsync(PrmObjectPatch args);
 
     Task DeleteObjectAsync(PrmObjectDelete args);
 

src/FrostFS.SDK.ClientV2/Mappers/ContainerId.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Security.Cryptography;
 
 using FrostFS.Refs;
 using FrostFS.SDK.Cryptography;

src/FrostFS.SDK.ClientV2/Models/Object/FrostFsAddress.cs

@@ -10,7 +10,7 @@ public class FrostFsAddress
     private ObjectID? objectId;
     private ContainerID? containerId;
 
-    public FrostFsAddress(FrostFsObjectId frostFsObjectId, FrostFsContainerId frostFsContainerId)
+    public FrostFsAddress(FrostFsContainerId frostFsContainerId, FrostFsObjectId frostFsObjectId)
     {
         FrostFsObjectId = frostFsObjectId ?? throw new System.ArgumentNullException(nameof(frostFsObjectId));
         FrostFsContainerId = frostFsContainerId ?? throw new System.ArgumentNullException(nameof(frostFsContainerId));

src/FrostFS.SDK.ClientV2/Models/Object/FrostFsRange.cs

@@ -1,10 +1,10 @@
 namespace FrostFS.SDK;
 
-public struct FrostFsRange : System.IEquatable<FrostFsRange>
+public readonly struct FrostFsRange(ulong offset, ulong length) : System.IEquatable<FrostFsRange>
 {
-    public ulong Offset {get; set;}
+    public ulong Offset { get; } = offset;
 
-    public ulong Length { get; set; }
+    public ulong Length { get; } = length;
 
     public override readonly bool Equals(object obj) => this == (FrostFsRange)obj;
 

src/FrostFS.SDK.ClientV2/Parameters/PrmObjectPatch.cs

@@ -1,5 +1,4 @@
 using System.IO;
-using System.Security.Cryptography;
 
 namespace FrostFS.SDK.ClientV2;
 

src/FrostFS.SDK.ClientV2/Parameters/PrmRangeGet.cs

@@ -4,6 +4,7 @@ public sealed class PrmRangeGet(
     FrostFsContainerId containerId,
     FrostFsObjectId objectId,
     FrostFsRange range,
+    bool raw = false,
     CallContext? ctx = null) : PrmBase(ctx), ISessionToken
 {
     public FrostFsContainerId ContainerId { get; } = containerId;
@@ -12,6 +13,8 @@ public sealed class PrmRangeGet(
 
     public FrostFsRange Range { get; } = range;
 
+    public bool Raw { get; } = raw;
+
     /// <inheritdoc />
     public FrostFsSessionToken? SessionToken { get; set; }
 }

src/FrostFS.SDK.ClientV2/Parameters/PrmRangeHashGet.cs

@@ -0,0 +1,20 @@
+namespace FrostFS.SDK.ClientV2;
+
+public sealed class PrmRangeHashGet(
+    FrostFsContainerId containerId,
+    FrostFsObjectId objectId,
+    FrostFsRange[] ranges,
+    byte[] salt,
+    CallContext? ctx = null) : PrmBase(ctx), ISessionToken
+{
+    public FrostFsContainerId ContainerId { get; } = containerId;
+
+    public FrostFsObjectId ObjectId { get; } = objectId;
+
+    public FrostFsRange[] Ranges { get; } = ranges;
+
+    public byte[] Salt { get; } = salt;
+
+    /// <inheritdoc />
+    public FrostFsSessionToken? SessionToken { get; set; }
+}

src/FrostFS.SDK.ClientV2/Pool/Pool.cs

@@ -2,7 +2,6 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Security.Cryptography;
-using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 
@@ -711,7 +710,7 @@ public partial class Pool : IFrostFSClient
         return await client.Client!.PutSingleObjectAsync(args).ConfigureAwait(false);
     }
 
-    public async Task PatchAsync(PrmObjectPatch args)
+    public async Task<FrostFsObjectId> PatchObjectAsync(PrmObjectPatch args)
     {
         if (args is null)
         {
@@ -722,7 +721,49 @@ public partial class Pool : IFrostFSClient
 
         args.Context.PoolErrorHandler = client.HandleError;
 
-        await client.Client!.PatchObjectAsync(args).ConfigureAwait(false);
+        return await client.Client!.PatchObjectAsync(args).ConfigureAwait(false);
+    }
+
+    public async Task<RangeReader> GetRangeAsync(PrmRangeGet args)
+    {
+        if (args is null)
+        {
+            throw new ArgumentNullException(nameof(args));
+        }
+
+        var client = Connection();
+
+        args.Context.PoolErrorHandler = client.HandleError;
+
+        return await client.Client!.GetRangeAsync(args).ConfigureAwait(false);
+    }
+
+    public async Task<IEnumerable<ReadOnlyMemory<byte>>> GetRangeHashAsync(PrmRangeHashGet args)
+    {
+        if (args is null)
+        {
+            throw new ArgumentNullException(nameof(args));
+        }
+
+        var client = Connection();
+
+        args.Context.PoolErrorHandler = client.HandleError;
+
+        return await client.Client!.GetRangeHashAsync(args).ConfigureAwait(false);
+    }
+
+    public async Task<FrostFsObjectId> PatchAsync(PrmObjectPatch args)
+    {
+        if (args is null)
+        {
+            throw new ArgumentNullException(nameof(args));
+        }
+
+        var client = Connection();
+
+        args.Context.PoolErrorHandler = client.HandleError;
+
+        return await client.Client!.PatchObjectAsync(args).ConfigureAwait(false);
     }
 
     public async Task DeleteObjectAsync(PrmObjectDelete args)
@@ -787,14 +828,4 @@ public partial class Pool : IFrostFSClient
     {
         throw new NotImplementedException();
     }
-
-    public Task PatchObjectAsync(PrmObjectPatch args)
-    {
-        throw new NotImplementedException();
-    }
-
-    public Task<RangeReader> GetRangeAsync(PrmRangeGet args)
-    {
-        throw new NotImplementedException();
-    }
 }

src/FrostFS.SDK.ClientV2/Services/ObjectServiceProvider.cs

@@ -130,7 +130,8 @@ internal sealed class ObjectServiceProvider(ObjectService.ObjectServiceClient cl
                 {
                     Offset = args.Range.Offset,
                     Length = args.Range.Length
-                }
+                },
+                Raw = args.Raw
             }
         };
 
@@ -149,6 +150,59 @@ internal sealed class ObjectServiceProvider(ObjectService.ObjectServiceClient cl
         return new RangeReader(call);
     }
 
+    internal async Task<IEnumerable<ReadOnlyMemory<byte>>> GetRangeHashAsync(PrmRangeHashGet args)
+    {
+        var ctx = args.Context!;
+
+        ctx.Key ??= ClientContext.Key?.ECDsaKey;
+
+        if (ctx.Key == null)
+            throw new ArgumentNullException(nameof(args), "Key is null");
+
+        var request = new GetRangeHashRequest
+        {
+            Body = new GetRangeHashRequest.Types.Body
+            {
+                Address = new Address
+                {
+                    ContainerId = args.ContainerId.ToMessage(),
+                    ObjectId = args.ObjectId.ToMessage()
+                },
+                Type = ChecksumType.Sha256,
+                Salt = ByteString.CopyFrom(args.Salt) // TODO: create a type with calculated cashed ByteString inside
+            }
+        };
+
+        foreach (var range in args.Ranges)
+        {
+            request.Body.Ranges.Add(new Object.Range
+            {
+                Length = range.Length,
+                Offset = range.Offset
+            });
+        }
+
+        var sessionToken = await GetOrCreateSession(args, ctx).ConfigureAwait(false);
+
+        sessionToken.CreateObjectTokenContext(
+            request.Body.Address,
+            ObjectSessionContext.Types.Verb.Rangehash,
+            ctx.Key);
+
+        request.AddMetaHeader(args.XHeaders, sessionToken);
+
+        request.Sign(ctx.Key);
+
+        var response = await client.GetRangeHashAsync(request, null, ctx.Deadline, ctx.CancellationToken);
+
+        Verifier.CheckResponse(response);
+
+        var hashCollection = response.Body.HashList.ToArray().Select(h => h.Memory);
+
+        return hashCollection;
+    }
+
+
     internal async Task DeleteObjectAsync(PrmObjectDelete args)
     {
         var ctx = args.Context!;
@@ -281,7 +335,7 @@ internal sealed class ObjectServiceProvider(ObjectService.ObjectServiceClient cl
         return FrostFsObjectId.FromHash(grpcObject.ObjectId.Value.ToByteArray());
     }
 
-    internal async Task PatchObjectAsync(PrmObjectPatch args)
+    internal async Task<FrostFsObjectId> PatchObjectAsync(PrmObjectPatch args)
     {
         var ctx = args.Context!;
         if (ctx.Key == null)
@@ -312,7 +366,7 @@ internal sealed class ObjectServiceProvider(ObjectService.ObjectServiceClient cl
                 ctx.Key
             );
 
-            var request = new PatchRequest
+            var request = new PatchRequest()
             {
                 Body = new()
                 {
@@ -322,6 +376,7 @@ internal sealed class ObjectServiceProvider(ObjectService.ObjectServiceClient cl
             };
 
             bool isFirstChunk = true;
+            ulong currentPos = args.Range.Offset;
 
             while (true)
             {
@@ -332,7 +387,7 @@ internal sealed class ObjectServiceProvider(ObjectService.ObjectServiceClient cl
                     break;
                 }
 
-                if (isFirstChunk)
+                if (isFirstChunk && args.NewAttributes != null && args.NewAttributes.Length > 0)
                 {
                     foreach (var attr in args.NewAttributes)
                     {
@@ -340,14 +395,18 @@ internal sealed class ObjectServiceProvider(ObjectService.ObjectServiceClient cl
                     }
                 }
 
-                request.Sign(ctx.Key);
-
                 request.Body.Patch = new PatchRequest.Types.Body.Types.Patch
                 {
                     Chunk = ByteString.CopyFrom(chunkBuffer, 0, bytesCount),
-                    SourceRange = new Object.Range { Offset = 0, Length = (ulong)bytesCount }
+                    SourceRange = new Object.Range { Offset = currentPos, Length = (ulong)bytesCount }
                 };
 
+                currentPos += (ulong)bytesCount;
+
+                request.AddMetaHeader(args.XHeaders, sessionToken);
+
+                request.Sign(ctx.Key);
+
                 await call.RequestStream.WriteAsync(request).ConfigureAwait(false);
 
                 isFirstChunk = false;
@@ -362,6 +421,12 @@ internal sealed class ObjectServiceProvider(ObjectService.ObjectServiceClient cl
                 ArrayPool<byte>.Shared.Return(chunkBuffer);
             }
         }
+
+        var response = await call.ResponseAsync.ConfigureAwait(false);
+
+        Verifier.CheckResponse(response);
+
+        return response.Body.ObjectId.ToModel();
     }
 
     private async Task<FrostFsObjectId> PutClientCutObject(PrmObjectPut args)

src/FrostFS.SDK.ClientV2/Tools/ObjectStreamer.cs

@@ -1,8 +1,6 @@
 using System;
 using System.Threading.Tasks;
 
-using FrostFS.Object;
-
 using Grpc.Core;
 
 namespace FrostFS.SDK.ClientV2;

src/FrostFS.SDK.Tests/Mocks/AsyncStreamRangeReaderMock.cs

@@ -0,0 +1,43 @@
+using System.Security.Cryptography;
+
+using FrostFS.Object;
+using FrostFS.SDK.ClientV2;
+using FrostFS.SDK.ClientV2.Mappers.GRPC;
+using FrostFS.SDK.Cryptography;
+using FrostFS.Session;
+
+using Google.Protobuf;
+
+using Grpc.Core;
+
+namespace FrostFS.SDK.Tests;
+
+public class AsyncStreamRangeReaderMock(string key, byte[] response) : ServiceBase(key), IAsyncStreamReader<GetRangeResponse>
+{
+    private readonly byte[] _response = response;
+
+    public GetRangeResponse Current
+    {
+        get
+        {
+            var response = new GetRangeResponse
+            {
+                Body = new GetRangeResponse.Types.Body
+                {
+                    Chunk = ByteString.CopyFrom(_response)
+                },
+                MetaHeader = new ResponseMetaHeader()
+            };
+
+            response.VerifyHeader = GetResponseVerificationHeader(response);
+
+            return response;
+        }
+    }
+
+    public Task<bool> MoveNext(CancellationToken cancellationToken)
+    {
+        return Task.FromResult(true);
+    }
+}
+

src/FrostFS.SDK.Tests/Mocks/ObjectMock.cs

@@ -5,6 +5,7 @@ using FrostFS.Object;
 using FrostFS.SDK.ClientV2;
 using FrostFS.SDK.ClientV2.Mappers.GRPC;
 using FrostFS.SDK.Cryptography;
+using FrostFS.Session;
 
 using Google.Protobuf;
 
@@ -16,6 +17,32 @@ namespace FrostFS.SDK.Tests;
 
 public class ObjectMocker(string key) : ObjectServiceBase(key)
 {
+    public FrostFsObjectId? ObjectId { get; set; }
+
+    public FrostFsObjectHeader? ObjectHeader { get; set; }
+
+    public Header? HeadResponse { get; set; }
+
+    public Collection<byte[]>? ResultObjectIds { get; } = [];
+
+    public ClientStreamWriter? ClientStreamWriter { get; } = new();
+
+    public PatchStreamWriter? PatchStreamWriter { get; } = new();
+
+    public Collection<PutSingleRequest> PutSingleRequests { get; } = [];
+
+    public Collection<DeleteRequest> DeleteRequests { get; } = [];
+
+    public Collection<HeadRequest> HeadRequests { get; } = [];
+
+    public byte[] RangeResponse { get; set; } = [];
+
+    public GetRangeRequest? GetRangeRequest { get; set; }
+
+    public GetRangeHashRequest? GetRangeHashRequest { get; set; }
+
+    public Collection<ByteString> RangeHashResponses { get; } = [];   
+
     public override Mock<ObjectService.ObjectServiceClient> GetMock()
     {
         var mock = new Mock<ObjectService.ObjectServiceClient>();
@@ -189,23 +216,88 @@ public class ObjectMocker(string key) : ObjectServiceBase(key)
                 });
         }
 
+        mock.Setup(x => x.GetRange(
+               It.IsAny<GetRangeRequest>(),
+               It.IsAny<Metadata>(),
+               It.IsAny<DateTime?>(),
+               It.IsAny<CancellationToken>()))
+               .Returns((GetRangeRequest r, Metadata m, DateTime? dt, CancellationToken ct) =>
+               {
+                   Verifier.CheckRequest(r);
+
+                   GetRangeRequest = r;
+
+                   return new AsyncServerStreamingCall<GetRangeResponse>(
+                       new AsyncStreamRangeReaderMock(StringKey, RangeResponse),
+                       Task.FromResult(ResponseMetaData),
+                       () => new Grpc.Core.Status(StatusCode.OK, string.Empty),
+                       () => ResponseMetaData,
+                       () => { });
+               });
+
+        mock.Setup(x => x.GetRangeHashAsync(
+              It.IsAny<GetRangeHashRequest>(),
+              It.IsAny<Metadata>(),
+              It.IsAny<DateTime?>(),
+              It.IsAny<CancellationToken>()))
+              .Returns((GetRangeHashRequest r, Metadata m, DateTime? dt, CancellationToken ct) =>
+              {
+                  Verifier.CheckRequest(r);
+
+                  GetRangeHashRequest = r;
+
+                  var response = new GetRangeHashResponse
+                  {
+                      Body = new GetRangeHashResponse.Types.Body(),
+                      MetaHeader = ResponseMetaHeader
+                  };
+
+                  if (RangeHashResponses != null)
+                  {
+                      foreach (var hash in RangeHashResponses)
+                      {
+                          response.Body.HashList.Add(hash);
+                      }
+                  }
+                  
+                  response.VerifyHeader = GetResponseVerificationHeader(response);
+
+                  return new AsyncUnaryCall<GetRangeHashResponse>(
+                      Task.FromResult(response),
+                      Task.FromResult(ResponseMetaData),
+                      () => new Grpc.Core.Status(StatusCode.OK, string.Empty),
+                      () => ResponseMetaData,
+                      () => { });
+              });
+
+
+        mock.Setup(x => x.Patch(
+             It.IsAny<Metadata>(),
+             It.IsAny<DateTime?>(),
+             It.IsAny<CancellationToken>()))
+             .Returns((Metadata m, DateTime? dt, CancellationToken ct) =>
+             {
+                 var patchResponse = new PatchResponse
+                 {
+                     Body = new PatchResponse.Types.Body
+                     {
+                         ObjectId = new Refs.ObjectID { Value = ByteString.CopyFrom(SHA256.HashData([1,2,3])) },
+                     },
+                     MetaHeader = ResponseMetaHeader
+                 };
+
+                 patchResponse.VerifyHeader = GetResponseVerificationHeader(patchResponse);
+
+                 return new AsyncClientStreamingCall<PatchRequest, PatchResponse>(
+                        PatchStreamWriter!,
+                        Task.FromResult(patchResponse),
+                        Task.FromResult(ResponseMetaData),
+                        () => new Grpc.Core.Status(StatusCode.OK, string.Empty),
+                        () => ResponseMetaData,
+                        () => { });
+             });
+
         return mock;
     }
-
-    public FrostFsObjectId? ObjectId { get; set; }
-
-    public FrostFsObjectHeader? ObjectHeader { get; set; }
-
-    public Header? HeadResponse { get; set; }
-
-    public Collection<byte[]>? ResultObjectIds { get; } = [];
-
-    public ClientStreamWriter? ClientStreamWriter { get; private set; } = new();
-
-    public Collection<PutSingleRequest> PutSingleRequests { get; private set; } = [];
-
-    public Collection<DeleteRequest> DeleteRequests { get; private set; } = [];
-
-    public Collection<HeadRequest> HeadRequests { get; private set; } = [];
 }
 

src/FrostFS.SDK.Tests/Mocks/PatchStreamWriter.cs

@@ -0,0 +1,36 @@
+using System.Collections.ObjectModel;
+
+using FrostFS.SDK.ProtosV2.Interfaces;
+
+using Grpc.Core;
+
+namespace FrostFS.SDK.Tests;
+
+public class PatchStreamWriter : IClientStreamWriter<IRequest>
+{
+    private WriteOptions? _options;
+
+    public Collection<IRequest> Messages { get; } = [];
+
+    public bool CompletedTask { get; private set; }
+
+    public WriteOptions? WriteOptions
+    {
+        get => _options;
+        set => _options = value;
+    }
+
+    public Task CompleteAsync()
+    {
+        CompletedTask = true;
+        return Task.CompletedTask;
+    }
+
+    public Task WriteAsync(IRequest message)
+    {
+        Object.PatchRequest pr = new((Object.PatchRequest)message);
+        Messages.Add(pr);
+        return Task.CompletedTask;
+    }
+}
+

src/FrostFS.SDK.Tests/ObjectTest.cs

@@ -10,6 +10,8 @@ using FrostFS.SDK.Cryptography;
 
 using Google.Protobuf;
 
+using static FrostFS.Object.ECInfo.Types;
+
 namespace FrostFS.SDK.Tests;
 
 [SuppressMessage("Reliability", "CA2007:Consider calling ConfigureAwait on the awaited task", Justification = "Default Value is correct for tests")]
@@ -223,4 +225,123 @@ public class ObjectTest : ObjectTestsBase
 
         Assert.Null(response.Split);
     }
+
+
+    [Fact]
+    public async void GetRangeTest()
+    {
+        Mocker.ResultObjectIds!.Add(SHA256.HashData([]));
+
+        Random rnd = new();
+        var bytes = new byte[1024];
+        rnd.NextBytes(bytes);
+
+        Mocker.RangeResponse = bytes;
+
+        Mocker.ObjectId = new ObjectID { Value = ByteString.CopyFrom(SHA256.HashData(Encoding.UTF8.GetBytes("test"))) }.ToModel();
+
+        var param = new PrmRangeGet(ContainerId, Mocker.ObjectId, new FrostFsRange(100, (ulong)Mocker.RangeResponse.Length));
+
+        var result = await GetClient().GetRangeAsync(param);
+
+        Assert.NotNull(Mocker.GetRangeRequest);
+
+        Assert.Equal(param.Range.Offset, Mocker.GetRangeRequest.Body.Range.Offset);
+        Assert.Equal(param.Range.Length, Mocker.GetRangeRequest.Body.Range.Length);
+
+        Assert.NotNull(result);
+
+        var chunk = await result.ReadChunk();
+
+        var chunkBytes = chunk.Value.Span.ToArray();
+
+        Assert.Equal(chunkBytes.Length, Mocker.RangeResponse.Length);
+
+        Assert.Equal(SHA256.HashData(bytes), SHA256.HashData(Mocker.RangeResponse));
+    }
+
+    [Fact]
+    public async void GetRangeHashTest()
+    {
+        Mocker.ResultObjectIds!.Add(SHA256.HashData([]));
+
+        Random rnd = new();
+        var bytes = new byte[1024];
+        rnd.NextBytes(bytes);
+
+        var salt = new byte[32];
+        rnd.NextBytes(salt);
+
+        var hash = new byte[32];
+        rnd.NextBytes(hash);
+
+        Mocker.RangeResponse = bytes;
+        var len = (ulong)bytes.Length;
+
+        Mocker.RangeHashResponses.Add(ByteString.CopyFrom(hash));
+
+        Mocker.ObjectId = new ObjectID { Value = ByteString.CopyFrom(SHA256.HashData(Encoding.UTF8.GetBytes("test"))) }.ToModel();
+
+        var param = new PrmRangeHashGet(ContainerId, Mocker.ObjectId, [new FrostFsRange(100, len)], salt);
+
+        var result = await GetClient().GetRangeHashAsync(param);
+
+        Assert.NotNull(Mocker.GetRangeHashRequest);
+
+        Assert.Equal(param.Ranges[0].Offset, Mocker.GetRangeHashRequest.Body.Ranges[0].Offset);
+        Assert.Equal(param.Ranges[0].Length, Mocker.GetRangeHashRequest.Body.Ranges[0].Length);
+
+        Assert.NotNull(result);
+        Assert.Single(result);
+
+        Assert.Equal(SHA256.HashData(hash), SHA256.HashData(result.First().ToArray()));
+    }
+
+
+    [Fact]
+    public async void PatchTest()
+    {
+        Mocker.ObjectId = new ObjectID { Value = ByteString.CopyFrom(SHA256.HashData(Encoding.UTF8.GetBytes("test"))) }.ToModel();
+
+        var address = new FrostFsAddress(ContainerId, Mocker.ObjectId);
+
+        Mocker.ResultObjectIds!.Add(SHA256.HashData([]));
+
+        Random rnd = new();
+        var patch = new byte[32];
+        rnd.NextBytes(patch);
+
+        var range = new FrostFsRange(8, (ulong)patch.Length);
+
+        var param = new PrmObjectPatch(address)
+        {
+            Payload = new MemoryStream(patch),
+            MaxPayloadPatchChunkLength = 32,
+            Range = range
+        };
+
+        var result = await GetClient().PatchObjectAsync(param);
+
+        Assert.NotNull(result);
+
+        Assert.NotNull(result.Value);
+
+        Assert.NotNull(Mocker.PatchStreamWriter);
+        Assert.Single(Mocker.PatchStreamWriter.Messages);
+
+        var sentMessages = Mocker.PatchStreamWriter!.Messages;
+
+        var body = sentMessages.First().GetBody() as Object.PatchRequest.Types.Body;
+
+        Assert.NotNull(body);
+
+        Assert.True(Mocker.PatchStreamWriter.CompletedTask);
+
+        Assert.Equal(address.ContainerId, body.Address.ContainerId);
+        Assert.Equal(address.ObjectId, body.Address.ObjectId);
+               
+        Assert.Equal(32, body.Patch.Chunk.Length);
+        
+        Assert.Equal(SHA256.HashData(patch), SHA256.HashData(body.Patch.Chunk.ToArray()));
+    }
 }

src/FrostFS.SDK.Tests/SmokeClientTests.cs

@@ -1,7 +1,6 @@
 using System.Diagnostics.CodeAnalysis;
 using System.Security.Cryptography;
 
-using FrostFS.Refs;
 using FrostFS.SDK.ClientV2;
 using FrostFS.SDK.ClientV2.Interfaces;
 using FrostFS.SDK.Cryptography;
@@ -249,8 +248,6 @@ public class SmokeClientTests : SmokeTestsBase
     [InlineData(6 * 1024 * 1024 + 100)]
     public async void SimpleScenarioTest(int objectSize)
     {
-        try
-        {
             using var client = FrostFSClient.GetSingleOwnerInstance(GetSingleOwnerOptions(this.keyString, this.url));
 
             await Cleanup(client);
@@ -328,88 +325,85 @@ public class SmokeClientTests : SmokeTestsBase
             {
                 Assert.Fail("Containers exist");
             }      
-        }
-        catch (Exception ex)
-        {
-
-        }
     }
 
     [Fact]
     public async void PatchTest()
     {
-        try
+        using var client = FrostFSClient.GetSingleOwnerInstance(GetSingleOwnerOptions(this.keyString, this.url));
+
+        await Cleanup(client);
+
+        var createContainerParam = new PrmContainerCreate(
+            new FrostFsContainerInfo(new FrostFsPlacementPolicy(true, new FrostFsReplica(1)), [new("testKey", "testValue")]));
+
+        var createdContainer = await client.CreateContainerAsync(createContainerParam);
+
+        var container = await client.GetContainerAsync(new PrmContainerGet(createdContainer));
+        Assert.NotNull(container);
+
+        var bytes = new byte[1024];
+        for (int i = 0; i < 1024; i++)
         {
-            using var client = FrostFSClient.GetSingleOwnerInstance(GetSingleOwnerOptions(this.keyString, this.url));
-
-            await Cleanup(client);
-
-            var createContainerParam = new PrmContainerCreate(
-                new FrostFsContainerInfo(new FrostFsPlacementPolicy(true, new FrostFsReplica(1)), [new("testKey", "testValue")]));
-
-            var createdContainer = await client.CreateContainerAsync(createContainerParam);
-
-            var container = await client.GetContainerAsync(new PrmContainerGet(createdContainer));
-            Assert.NotNull(container);
-
-            var bytes = new byte[4 * 1024];
-            for (int i = 0; i < 4 * 1024; i++)
-            {
-                bytes[i] = (byte)31;
-            }
-
-            var param = new PrmObjectPut
-            {
-                Header = new FrostFsObjectHeader(
-                    containerId: createdContainer,
-                    type: FrostFsObjectType.Regular,
-                    [new FrostFsAttributePair("fileName", "test")]),
-                Payload = new MemoryStream(bytes),
-                ClientCut = false
-            };
-
-            var objectId = await client.PutObjectAsync(param);
-
-            var patch = new byte[1024];
-            for (int i = 0; i < 1024; i++)
-            {
-                bytes[i] = (byte)32;
-            }
-
-            var patchParams = new PrmObjectPatch(new FrostFsAddress(objectId, createdContainer))
-            {
-                Payload = new MemoryStream(patch),
-                MaxPayloadPatchChunkLength = 1024,
-                NewAttributes = [new FrostFsAttributePair("testKey", "testValue")],
-                Range = new FrostFsRange() { Length = 1024, Offset = 10 },
-                ReplaceAttributes = false
-            };
-
-            await client.PatchObjectAsync(patchParams);
-
-            var @object = await client.GetObjectAsync(new PrmObjectGet(createdContainer, objectId));
-
-            var downloadedBytes = new byte[@object.Header.PayloadLength];
-            MemoryStream ms = new(downloadedBytes);
-
-            ReadOnlyMemory<byte>? chunk = null;
-            while ((chunk = await @object.ObjectReader!.ReadChunk()) != null)
-            {
-                ms.Write(chunk.Value.Span);
-            }
-
-            Assert.Equal(SHA256.HashData(bytes), SHA256.HashData(downloadedBytes));
-
-            await Cleanup(client);
-
-            await foreach (var _ in client.ListContainersAsync())
-            {
-                Assert.Fail("Containers exist");
-            }
+            bytes[i] = (byte)31;
         }
-        catch (Exception ex)
-        {
 
+        var param = new PrmObjectPut
+        {
+            Header = new FrostFsObjectHeader(
+                containerId: createdContainer,
+                type: FrostFsObjectType.Regular,
+                [new FrostFsAttributePair("fileName", "test")]),
+            Payload = new MemoryStream(bytes),
+            ClientCut = false
+        };
+
+        var objectId = await client.PutObjectAsync(param);
+
+        var patch = new byte[16];
+        for (int i = 0; i < 16; i++)
+        {
+            patch[i] = (byte)32;
+        }
+
+        var range = new FrostFsRange(8, (ulong)patch.Length);
+
+        var patchParams = new PrmObjectPatch(new FrostFsAddress(createdContainer, objectId))
+        {
+            Payload = new MemoryStream(patch),
+            MaxPayloadPatchChunkLength = 32,
+            Range = range
+        };
+
+        var newIbjId = await client.PatchObjectAsync(patchParams);
+
+        var @object = await client.GetObjectAsync(new PrmObjectGet(createdContainer, newIbjId));
+
+        var downloadedBytes = new byte[@object.Header.PayloadLength];
+        MemoryStream ms = new(downloadedBytes);
+
+        ReadOnlyMemory<byte>? chunk = null;
+        while ((chunk = await @object.ObjectReader!.ReadChunk()) != null)
+        {
+            ms.Write(chunk.Value.Span);
+        }
+
+        for(int i = 0; i < (int)range.Offset; i++)
+            Assert.Equal(downloadedBytes[i], bytes[i]);
+
+        var rangeEnd = range.Offset + range.Length;
+
+        for (int i = (int)range.Offset; i < (int)rangeEnd; i++)
+            Assert.Equal(downloadedBytes[i], patch[i - (int)range.Offset]);
+
+        for (int i = (int)rangeEnd; i < bytes.Length; i++)
+            Assert.Equal(downloadedBytes[i], bytes[i]);
+
+        await Cleanup(client);
+
+        await foreach (var _ in client.ListContainersAsync())
+        {
+            Assert.Fail("Containers exist");
         }
     }
 
@@ -438,15 +432,14 @@ public class SmokeClientTests : SmokeTestsBase
         {
             Header = new FrostFsObjectHeader(
                 containerId: createdContainer,
-                type: FrostFsObjectType.Regular,
-                [new FrostFsAttributePair("fileName", "test")]),
+                type: FrostFsObjectType.Regular),
             Payload = new MemoryStream(bytes),
             ClientCut = false
         };
 
         var objectId = await client.PutObjectAsync(param);
 
-        var rangeParam = new PrmRangeGet(createdContainer, objectId, new FrostFsRange {  Offset = 100, Length = 64 });
+        var rangeParam = new PrmRangeGet(createdContainer, objectId, new FrostFsRange(100, 64));
 
         var rangeReader = await client.GetRangeAsync(rangeParam);
 
@@ -469,6 +462,55 @@ public class SmokeClientTests : SmokeTestsBase
         }
     }
 
+    [Fact]
+    public async void RangeHashTest()
+    {
+        using var client = FrostFSClient.GetSingleOwnerInstance(GetSingleOwnerOptions(this.keyString, this.url));
+
+        await Cleanup(client);
+
+        var createContainerParam = new PrmContainerCreate(
+            new FrostFsContainerInfo(new FrostFsPlacementPolicy(true, new FrostFsReplica(1)), [new("testKey", "testValue")]));
+
+        var createdContainer = await client.CreateContainerAsync(createContainerParam);
+
+        var container = await client.GetContainerAsync(new PrmContainerGet(createdContainer));
+        Assert.NotNull(container);
+
+        var bytes = new byte[256];
+        for (int i = 0; i < 256; i++)
+        {
+            bytes[i] = (byte)i;
+        }
+
+        var param = new PrmObjectPut
+        {
+            Header = new FrostFsObjectHeader(
+                containerId: createdContainer,
+                type: FrostFsObjectType.Regular),
+            Payload = new MemoryStream(bytes),
+            ClientCut = false
+        };
+
+        var objectId = await client.PutObjectAsync(param);
+
+        var rangeParam = new PrmRangeHashGet(createdContainer, objectId, [ new FrostFsRange(100, 64)], bytes);
+
+        var hashes = await client.GetRangeHashAsync(rangeParam);
+
+        foreach (var hash in hashes)
+        {
+            var x = hash.Slice(0, 32).ToArray();
+        }
+      
+        await Cleanup(client);
+
+        await foreach (var _ in client.ListContainersAsync())
+        {
+            Assert.Fail("Containers exist");
+        }
+    }
+
     [Theory]
     [InlineData(1)]
     [InlineData(3 * 1024 * 1024)]            // exactly one chunk size - 3MB