src/FrostFS.SDK.ClientV2/Mappers/Object/ObjectFilterMapper.cs

@@ -7,7 +7,7 @@ namespace FrostFS.SDK.ClientV2.Mappers.GRPC;
 
 public static class ObjectFilterMapper
 {
-    public static SearchRequest.Types.Body.Types.Filter ToGrpcMessage(this ObjectFilter filter)
+    public static SearchRequest.Types.Body.Types.Filter ToGrpcMessage(this IObjectFilter filter)
     {
         var objMatchTypeName = filter.MatchType switch
         {
@@ -24,7 +24,7 @@ public static class ObjectFilterMapper
         {
             MatchType = objMatchTypeName,
             Key = filter.Key,
-            Value = filter.Value
+            Value = filter.GetSerializedValue()
         };
     }    
 }

src/FrostFS.SDK.ClientV2/Mappers/Object/ObjectHeaderMapper.cs

@@ -74,7 +74,7 @@ public static class ObjectHeaderMapper
 
         if (header.Split != null)
         {
-            model.Split = new Split(SplitId.CreateFromBinary(header.Split.SplitId.ToByteArray()))
+            model.Split = new Split(new SplitId(header.Split.SplitId.ToUuid()))
             {
                 Parent = header.Split.Parent?.ToModel(),
                 ParentHeader = header.Split.ParentHeader?.ToModel(),

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

@@ -4,8 +4,6 @@ namespace FrostFS.SDK.ClientV2.Parameters;
 
 public sealed class PrmContainerGetAll() : IContext
 {
-    public string SessionToken { get; set; } = string.Empty;
-
     /// <summary>
     /// FrostFS request X-Headers
     /// </summary>

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

@@ -3,15 +3,19 @@ using System.Collections.Specialized;
 using FrostFS.SDK.ModelsV2;
 namespace FrostFS.SDK.ClientV2.Parameters;
 
-public sealed class PrmObjectSearch(ContainerId containerId, params ObjectFilter[] filters) : IContext, ISessionToken
+public sealed class PrmObjectSearch(ContainerId containerId, params IObjectFilter[] filters) : IContext, ISessionToken
 {
+    /// <summary>
+    /// Defines container for the search
+    /// </summary>
+    /// <value></value>
     public ContainerId ContainerId { get; set; } = containerId;
 
     /// <summary>
     /// Defines the search criteria
     /// </summary>
     /// <value>Collection of filters</value>
-    public IEnumerable<ObjectFilter> Filters { get; set; } = filters;
+    public IEnumerable<IObjectFilter> Filters { get; set; } = filters;
 
     /// <summary>
     /// FrostFS request X-Headers

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

@@ -1,33 +1,25 @@
-using System.Threading.Tasks;
+using System;
+using System.Collections.Generic;
+using System.Collections.Specialized;
+using System.Threading.Tasks;
+
 using FrostFS.SDK.ClientV2.Mappers.GRPC.Netmap;
 using FrostFS.Container;
-
 using FrostFS.SDK.ClientV2.Mappers.GRPC;
 using FrostFS.SDK.Cryptography;
-using System.Collections.Generic;
 using FrostFS.SDK.ModelsV2;
-using FrostFS.Refs;
-using System;
 using FrostFS.SDK.ClientV2.Parameters;
-using System.Collections.Specialized;
+using FrostFS.Refs;
 
 namespace FrostFS.SDK.ClientV2;
 
-internal class ContainerServiceProvider : ContextAccessor
+internal class ContainerServiceProvider(ContainerService.ContainerServiceClient service, ClientEnvironment context) : ContextAccessor(context)
 {
-    private readonly ContainerService.ContainerServiceClient containerServiceClient;
-    
-    internal ContainerServiceProvider(ContainerService.ContainerServiceClient service, ClientEnvironment context)
-        : base(context)
-    {
-        containerServiceClient = service;
-    }
-
     internal async Task<ModelsV2.Container> GetContainerAsync(PrmContainerGet args)
     {
         GetRequest request = GetContainerRequest(args.ContainerId.ToGrpcMessage(), args.XHeaders);
 
-        var response = await containerServiceClient.GetAsync(request, null, args.Context!.Deadline, args.Context.CancellationToken);
+        var response = await service.GetAsync(request, null, args.Context!.Deadline, args.Context.CancellationToken);
 
         Verifier.CheckResponse(response);
 
@@ -49,7 +41,7 @@ internal class ContainerServiceProvider : ContextAccessor
         request.AddMetaHeader(args.XHeaders);
         request.Sign(Context.Key);
 
-        var response = await containerServiceClient.ListAsync(request, null, ctx.Deadline, ctx.CancellationToken);
+        var response = await service.ListAsync(request, null, ctx.Deadline, ctx.CancellationToken);
        
         Verifier.CheckResponse(response);
        
@@ -78,7 +70,7 @@ internal class ContainerServiceProvider : ContextAccessor
         request.AddMetaHeader(args.XHeaders);
         request.Sign(Context.Key);
 
-        var response = await containerServiceClient.PutAsync(request, null, ctx.Deadline, ctx.CancellationToken);
+        var response = await service.PutAsync(request, null, ctx.Deadline, ctx.CancellationToken);
       
         Verifier.CheckResponse(response);
 
@@ -100,9 +92,10 @@ internal class ContainerServiceProvider : ContextAccessor
         };
 
         request.AddMetaHeader(args.XHeaders);
+
         request.Sign(Context.Key);
 
-        var response = await containerServiceClient.DeleteAsync(request, null, ctx.Deadline, ctx.CancellationToken);
+        var response = await service.DeleteAsync(request, null, ctx.Deadline, ctx.CancellationToken);
 
         await WaitForContainer(WaitExpects.Removed, request.Body.ContainerId, args.WaitParams, ctx);
     
@@ -137,7 +130,7 @@ internal class ContainerServiceProvider : ContextAccessor
 
         async Task action()
         {
-            var response = await containerServiceClient.GetAsync(request, null, ctx.Deadline, ctx.CancellationToken);
+            var response = await service.GetAsync(request, null, ctx.Deadline, ctx.CancellationToken);
             Verifier.CheckResponse(response);
         }
 
@@ -161,6 +154,9 @@ internal class ContainerServiceProvider : ContextAccessor
                 if (expect == WaitExpects.Exists)
                     return;
 
+                if (DateTime.UtcNow >= deadLine)
+                    throw new TimeoutException();
+
                 await Task.Delay(waitParams.PollInterval);
             }
             catch (ResponseException ex)
@@ -179,5 +175,3 @@ internal class ContainerServiceProvider : ContextAccessor
         }
     }
 }
-
-

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

@@ -12,14 +12,19 @@ using FrostFS.SDK.Cryptography;
 using FrostFS.Session;
 using FrostFS.SDK.ModelsV2;
 using FrostFS.SDK.ClientV2.Extensions;
-using System.Threading;
 using FrostFS.SDK.ClientV2.Parameters;
 
 namespace FrostFS.SDK.ClientV2;
 
-internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, ClientEnvironment ctx) : ContextAccessor(ctx)
+internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, ClientEnvironment ctx) : ContextAccessor(ctx), ISessionProvider
 {
     readonly ObjectTools tools = new(ctx);
+    readonly SessionProvider sessions = new (ctx);
+
+    public async ValueTask<Session.SessionToken> GetOrCreateSession(ISessionToken args, Context ctx)
+    {
+        return await sessions.GetOrCreateSession(args, ctx);
+    }
 
     internal async Task<ObjectHeader> GetObjectHeadAsync(PrmObjectHeadGet args)
     {
@@ -193,8 +198,6 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
         return ObjectId.FromHash(grpcObject.ObjectId.Value.ToByteArray());
     }
     
-    static readonly AsyncLocal<Session.SessionToken> asyncLocalSession = new ();
-    
     private async Task<ObjectId> PutClientCutObject(PrmObjectPut args)
     {
         var ctx = args.Context!;
@@ -274,7 +277,9 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
             return tools.CalculateObjectId(largeObject.Header);
         }
 
-        currentObject.AddAttributes(args.Header!.Attributes);
+        currentObject
+            .SetSplit(null)
+            .AddAttributes(args.Header!.Attributes);
         
         return await PutSingleObjectAsync(new PrmSingleObjectPut(currentObject, ctx));
     }
@@ -421,14 +426,4 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
     
         return new SearchReader(call);
     }   
-
-    private async ValueTask<Session.SessionToken> GetOrCreateSession(ISessionToken args, Context ctx)
-    {
-        if (args.SessionToken is null)
-        { 
-            return await Context.Client.CreateSessionInternalAsync(new PrmSessionCreate(uint.MaxValue, ctx));
-        }
-
-        return new Session.SessionToken().Deserialize(args.SessionToken.Token);
-    }
 }

src/FrostFS.SDK.ClientV2/Services/Shared/SessionProvider.cs

@@ -0,0 +1,23 @@
+
+using System.Threading.Tasks;
+using FrostFS.SDK.ClientV2.Parameters;
+
+namespace FrostFS.SDK.ClientV2;
+
+internal interface ISessionProvider
+{
+    ValueTask<Session.SessionToken> GetOrCreateSession(ISessionToken args, Context ctx);
+}
+
+internal class SessionProvider(ClientEnvironment env)
+{ 
+    public async ValueTask<Session.SessionToken> GetOrCreateSession(ISessionToken args, Context ctx)
+    {
+        if (args.SessionToken is null)
+        { 
+            return await env.Client.CreateSessionInternalAsync(new PrmSessionCreate(uint.MaxValue, ctx));
+        }
+
+        return new Session.SessionToken().Deserialize(args.SessionToken.Token);
+    }
+}

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

@@ -37,7 +37,7 @@ public static class ObjectExtensions
         return obj;
     }
 
-    public static FrostFsObject SetSplit(this FrostFsObject obj, Split split)
+    public static FrostFsObject SetSplit(this FrostFsObject obj, Split? split)
     {
         obj.Header.Split = split;
         return obj;

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

@@ -80,9 +80,7 @@ internal class ObjectTools(ClientEnvironment ctx) : ContextAccessor (ctx)
         grpcHeader.OwnerId = Context.Owner.ToGrpcMessage();
         grpcHeader.Version = Context.Version.ToGrpcMessage();
 
-        if (header.PayloadCheckSum != null)
+        if (payload != null)    
-            grpcHeader.PayloadHash = Sha256Checksum(header.PayloadCheckSum);
-        else if (payload != null)    
             grpcHeader.PayloadHash = Sha256Checksum(payload);
        
         return grpcHeader;

src/FrostFS.SDK.Cryptography/UUID.cs

@@ -7,18 +7,49 @@ public static class UUIDExtension
 {
     public static Guid ToUuid(this ByteString id)
     {
-        return Guid.Parse(BitConverter.ToString(id.ToByteArray()).Replace("-", ""));
+        var bytes = id.ToByteArray();
+        
+        var orderedBytes = GetGuidBytesDirectOrder(bytes);
+
+        return new Guid(orderedBytes);
     }
     
+    /// <summary>
+    /// Serializes Guid to binary representation in direct order bytes format
+    /// </summary>
+    /// <param name="id"></param>
+    /// <returns></returns>
     public static byte[] ToBytes(this Guid id)
     {
-        var str = id.ToString("N");
+        var bytes = id.ToByteArray();
-        var len = str.Length;
-        var bytes = new byte[len/2];
 
-        for (int i = 0; i < len; i += 2)
+        var orderedBytes = GetGuidBytesDirectOrder(bytes);
-            bytes[i/2] = Convert.ToByte(str.Substring(i, 2), 16);
 
-        return bytes;
+        return orderedBytes;
+    }
+
+    private static byte[] GetGuidBytesDirectOrder(byte[] source)
+    {
+        if (source.Length != 16)
+            throw new ArgumentException("Wrong uuid binary format");
+
+        return [
+            source[3],
+            source[2],
+            source[1],
+            source[0],
+            source[5],
+            source[4],
+            source[7],
+            source[6],
+            source[8],
+            source[9],
+            source[10],
+            source[11],
+            source[12],
+            source[13],
+            source[14],
+            source[15]
+        ];
     }
 }

src/FrostFS.SDK.ModelsV2/Misc/CheckSum.cs

@@ -1,10 +1,11 @@
+using System;
 using System.Security.Cryptography;
-using System.Text;
 
 namespace FrostFS.SDK.ModelsV2;
 
 public class CheckSum
 {
+    // type is always Sha256
     public byte[]? Hash { get; set; } 
 
     public static byte[] GetHash(byte[] content)
@@ -20,6 +21,6 @@ public class CheckSum
 
     public override string ToString()
     {
-        return Encoding.UTF8.GetString(Hash);
+        return BitConverter.ToString(Hash).Replace("-", "");
     }
 }

src/FrostFS.SDK.ModelsV2/Object/FrostFsObject.cs

@@ -69,19 +69,6 @@ public class LargeObject(ContainerId container) : FrostFsObject(container)
 {
     private readonly SHA256 payloadHash = SHA256.Create();
 
-    public void AppendBlock(byte[] bytes, int count)
-    {
-        Header!.PayloadLength += (ulong)count;
-        this.payloadHash.TransformBlock(bytes, 0, count, bytes, 0);
-    }
-
-    public LargeObject CalculateHash()
-    {
-        this.payloadHash.TransformFinalBlock([], 0, 0);
-        Header!.PayloadCheckSum = this.payloadHash.Hash;
-        return this;
-    }
-
     public ulong PayloadLength
     {
         get { return Header!.PayloadLength; }

src/FrostFS.SDK.ModelsV2/Object/ObjectFilter.cs

@@ -2,37 +2,112 @@ using FrostFS.SDK.ModelsV2.Enums;
 
 namespace FrostFS.SDK.ModelsV2;
 
-public class ObjectFilter
+public interface IObjectFilter
 {
-    private const string HeaderPrefix = "$Object:"; 
     public ObjectMatchType MatchType { get; set; }
     public string Key { get; set; }
-    public string Value { get; set; }
     
-    public ObjectFilter(ObjectMatchType matchType, string key, string value)
+    string? GetSerializedValue();
-    {
+}
-        MatchType = matchType;
-        Key = key;
-        Value = value;
-    }
 
-    public static ObjectFilter ObjectIdFilter(ObjectMatchType matchType, ObjectId objectId)
+public abstract class ObjectFilter<T>(ObjectMatchType matchType, string key, T value) : IObjectFilter
-    {
+{
-        return new ObjectFilter(matchType, HeaderPrefix + "objectID", objectId.Value);
+    public ObjectMatchType MatchType { get; set; } = matchType;
-    }
+    public string Key { get; set; } = key;
 
-    public static ObjectFilter OwnerFilter(ObjectMatchType matchType, OwnerId ownerId)
+    public T Value { get; set; } = value;
-    {
-        return new ObjectFilter(matchType, HeaderPrefix + "ownerID", ownerId.Value);
-    }
 
-    public static ObjectFilter RootFilter()
+    public string? GetSerializedValue()
     {
-        return new ObjectFilter(ObjectMatchType.Unspecified, HeaderPrefix + "ROOT", "");
+        return Value?.ToString();
-    }
-
-    public static ObjectFilter VersionFilter(ObjectMatchType matchType, Version version)
-    {
-        return new ObjectFilter(matchType, HeaderPrefix + "version", version.ToString());
     }
 }
+
+/// <summary>
+/// Creates filter to search by Attribute
+/// </summary>
+/// <param name="matchType">Match type</param>
+/// <param name="key">Attribute key</param>
+/// <param name="value">Attribute value</param>
+public class FilterByAttribute(ObjectMatchType matchType, string key, string value) : ObjectFilter<string>(matchType, key, value) { }
+
+/// <summary>
+/// Creates filter to search by ObjectId
+/// </summary>
+/// <param name="matchType">Match type</param>
+/// <param name="objectId">ObjectId</param>
+public class FilterByObjectId(ObjectMatchType matchType, ObjectId objectId) : ObjectFilter<ObjectId>(matchType, Constants.FilterHeaderObjectID, objectId) { }
+
+/// <summary>
+/// Creates filter to search by OwnerId
+/// </summary>
+/// <param name="matchType">Match type</param>
+/// <param name="ownerId">ObjectId</param>
+public class FilterByOwnerId(ObjectMatchType matchType, OwnerId ownerId) : ObjectFilter<OwnerId>(matchType, Constants.FilterHeaderOwnerID, ownerId) {}
+
+/// <summary>
+/// Creates filter to search by Version
+/// </summary>
+/// <param name="matchType">Match type</param>
+/// <param name="version">Version</param>
+public class FilterByVersion(ObjectMatchType matchType, Version version) : ObjectFilter<Version>(matchType, Constants.FilterHeaderVersion, version)  {}
+
+/// <summary>
+/// Creates filter to search by ContainerId
+/// </summary>
+/// <param name="matchType">Match type</param>
+/// <param name="containerId">ContainerId</param>
+public class FilterByContainerId(ObjectMatchType matchType, ContainerId containerId) : ObjectFilter<ContainerId>(matchType, Constants.FilterHeaderContainerID, containerId)  {}
+
+/// <summary>
+/// Creates filter to search by creation Epoch
+/// </summary>
+/// <param name="matchType">Match type</param>
+/// <param name="epoch">Creation Epoch</param>
+public class FilterByEpoch(ObjectMatchType matchType, ulong epoch) : ObjectFilter<ulong>(matchType, Constants.FilterHeaderCreationEpoch, epoch)  {}
+
+/// <summary>
+/// Creates filter to search by Payload Length
+/// </summary>
+/// <param name="matchType">Match type</param>
+/// <param name="payloadLength">Payload Length</param>
+public class FilterByPayloadLength(ObjectMatchType matchType, ulong payloadLength) : ObjectFilter<ulong>(matchType, Constants.FilterHeaderPayloadLength, payloadLength)  {}
+
+/// <summary>
+/// Creates filter to search by Payload Hash
+/// </summary>
+/// <param name="matchType">Match type</param>
+/// <param name="payloadHash">Payload Hash</param>
+public class FilterByPayloadHash(ObjectMatchType matchType, CheckSum payloadHash) : ObjectFilter<CheckSum>(matchType, Constants.FilterHeaderPayloadHash, payloadHash)  {}
+
+/// <summary>
+/// Creates filter to search by Parent
+/// </summary>
+/// <param name="matchType">Match type</param>
+/// <param name="parentId">Parent</param>
+public class FilterByParent(ObjectMatchType matchType, ObjectId parentId) : ObjectFilter<ObjectId>(matchType, Constants.FilterHeaderParent, parentId)  {}
+
+/// <summary>
+/// Creates filter to search by SplitId
+/// </summary>
+/// <param name="matchType">Match type</param>
+/// <param name="splitId">SplitId</param>
+public class FilterBySplitId(ObjectMatchType matchType, SplitId splitId) : ObjectFilter<SplitId>(matchType, Constants.FilterHeaderSplitID, splitId)  {}
+
+/// <summary>
+/// Creates filter to search by Payload Hash
+/// </summary>
+/// <param name="matchType">Match type</param>
+/// <param name="ecParentId">Payload Hash</param>
+public class FilterByECParent(ObjectMatchType matchType, ObjectId ecParentId) : ObjectFilter<ObjectId>(matchType, Constants.FilterHeaderECParent, ecParentId)  {}
+
+/// <summary>
+/// Creates filter to search Root objects
+/// </summary>
+public class FilterByRootObject() : ObjectFilter<string>(ObjectMatchType.Unspecified, Constants.FilterHeaderRoot, string.Empty) {}
+
+/// <summary>
+/// Creates filter to search objects that are physically stored on the server 
+/// </summary
+public class FilterByPhysicallyStored() : ObjectFilter<string>(ObjectMatchType.Unspecified, Constants.FilterHeaderPhy, string.Empty)  {}
+

src/FrostFS.SDK.ModelsV2/Object/OwnerId.cs

@@ -17,4 +17,9 @@ public class OwnerId(string id)
     {
         return Base58.Decode(Value);
     }
+
+    public override string ToString()
+    {
+        return Value;
+    }
 }

src/FrostFS.SDK.ModelsV2/Object/SplitId.cs

@@ -1,4 +1,5 @@
-using System;
+using FrostFS.SDK.Cryptography;
+using System;
 
 namespace FrostFS.SDK.ModelsV2;
 
@@ -10,6 +11,7 @@ public class SplitId
     {
         this.id = Guid.NewGuid();
     }
+
     public SplitId(Guid guid)
     {
         this.id = guid;
@@ -28,7 +30,7 @@ public class SplitId
     public static SplitId CreateFromBinary(byte[] binaryData)
     {
         return new SplitId(binaryData);
-   }
+    }
 
     public static SplitId CreateFromString(string stringData)
     {
@@ -45,6 +47,6 @@ public class SplitId
         if (this.id == Guid.Empty)
             return null;
 
-        return this.id.ToByteArray();
+        return this.id.ToBytes();
     }
 }

src/FrostFS.SDK.ModelsV2/PutObjectParameters.cs

@@ -1 +0,0 @@
-namespace FrostFS.SDK.ModelsV2;

src/FrostFS.SDK.Tests/SmokeTests.cs

@@ -115,7 +115,7 @@ public class SmokeTests
         {
             Header = new ObjectHeader(
                 containerId: containerId,
-                type: ObjectType.Regular,
+                type: ModelsV2.Enums.ObjectType.Regular,
                 new ObjectAttribute("fileName", "test")),
             Payload = new MemoryStream(bytes),
             ClientCut = false,
@@ -140,6 +140,88 @@ public class SmokeTests
         await Cleanup(client);
     }
 
+    [Fact]
+    public async void FilterTest()
+    {
+        using var client = Client.GetInstance(GetOptions(this.key, this.url));
+
+        await Cleanup(client);
+
+        var createContainerParam = new PrmContainerCreate(
+           new ModelsV2.Container(BasicAcl.PublicRW, new PlacementPolicy(true, new Replica(1))))
+        {
+            WaitParams = lightWait
+        };
+
+        var containerId = await client.CreateContainerAsync(createContainerParam);
+
+        var bytes = new byte[] { 1, 2, 3 };
+
+        var ParentHeader = new ObjectHeader(
+                containerId: containerId,
+                type: ModelsV2.Enums.ObjectType.Regular)
+        {
+            PayloadLength = 3
+        };
+
+        var param = new PrmObjectPut
+        {
+            Header = new ObjectHeader(
+                containerId: containerId,
+                type: ModelsV2.Enums.ObjectType.Regular,
+                new ObjectAttribute("fileName", "test"))
+            {
+                Split = new Split(),
+            },
+            Payload = new MemoryStream(bytes),
+            ClientCut = false
+        };
+
+        var objectId = await client.PutObjectAsync(param);
+
+        var head = await client.GetObjectHeadAsync(new PrmObjectHeadGet(containerId, objectId));
+
+        var ecdsaKey = this.key.LoadWif();
+
+        var networkInfo = await client.GetNetmapSnapshotAsync();
+
+        await CheckFilter(client, containerId, new FilterByContainerId(ObjectMatchType.Equals, containerId));
+
+        await CheckFilter(client, containerId, new FilterByOwnerId(ObjectMatchType.Equals, OwnerId.FromKey(ecdsaKey)));
+
+        await CheckFilter(client, containerId, new FilterBySplitId(ObjectMatchType.Equals, param.Header.Split.SplitId));
+
+        await CheckFilter(client, containerId, new FilterByAttribute(ObjectMatchType.Equals, "fileName", "test"));
+
+        await CheckFilter(client, containerId, new FilterByObjectId(ObjectMatchType.Equals, objectId));
+
+        await CheckFilter(client, containerId, new FilterByVersion(ObjectMatchType.Equals, networkInfo.NodeInfoCollection[0].Version));
+
+        await CheckFilter(client, containerId, new FilterByEpoch(ObjectMatchType.Equals, networkInfo.Epoch));
+
+        await CheckFilter(client, containerId, new FilterByPayloadLength(ObjectMatchType.Equals, 3));
+
+        var checkSum = CheckSum.CreateCheckSum(bytes);
+
+        await CheckFilter(client, containerId, new FilterByPayloadHash(ObjectMatchType.Equals, checkSum));
+
+        await CheckFilter(client, containerId, new FilterByPhysicallyStored());
+    }
+
+    private static async Task CheckFilter(IFrostFSClient client, ContainerId containerId, IObjectFilter filter)
+    {
+        var resultObjectsCount = 0;
+
+        PrmObjectSearch searchParam = new(containerId) { Filters = [filter] };
+
+        await foreach (var objId in client.SearchObjectsAsync(searchParam))
+        {
+            resultObjectsCount++;
+        }
+
+        Assert.True(1 == resultObjectsCount, $"Filter for {filter.Key} doesn't work");
+    }
+
     [Theory]
     [InlineData(1)]
     [InlineData(3 * 1024 * 1024)]            // exactly one chunk size - 3MB
@@ -153,7 +235,7 @@ public class SmokeTests
         bool callbackInvoked = false;
         var ctx = new Context
         {
-            Timeout = TimeSpan.FromSeconds(20),
+           // Timeout = TimeSpan.FromSeconds(20),
             Callback = new((CallStatistics cs) =>
             {
                 callbackInvoked = true;
@@ -179,7 +261,7 @@ public class SmokeTests
         {
             Header = new ObjectHeader(
                 containerId: containerId,
-                type: ObjectType.Regular,
+                type: ModelsV2.Enums.ObjectType.Regular,
                 new ObjectAttribute("fileName", "test")),
             Payload = new MemoryStream(bytes),
             ClientCut = false,
@@ -191,7 +273,7 @@ public class SmokeTests
 
         var objectId = await client.PutObjectAsync(param);
 
-        var filter = new ObjectFilter(ObjectMatchType.Equals, "fileName", "test");
+        var filter = new FilterByAttribute(ObjectMatchType.Equals, "fileName", "test");
 
         bool hasObject = false;
         await foreach (var objId in client.SearchObjectsAsync(new PrmObjectSearch(containerId) { Filters = [filter] }))
@@ -263,7 +345,7 @@ public class SmokeTests
         {
             Header = new ObjectHeader(
                 containerId: containerId,
-                type: ObjectType.Regular,
+                type: ModelsV2.Enums.ObjectType.Regular,
                 new ObjectAttribute("fileName", "test")),
             Payload = new MemoryStream(bytes),
             ClientCut = false,
@@ -276,7 +358,7 @@ public class SmokeTests
 
         var objectId = await client.PutObjectAsync(param);
 
-        var filter = new ObjectFilter(ObjectMatchType.Equals, "fileName", "test");
+        var filter = new FilterByAttribute(ObjectMatchType.Equals, "fileName", "test");
 
         bool hasObject = false;
         await foreach (var objId in client.SearchObjectsAsync(new PrmObjectSearch(containerId) { Filters = [filter], SessionToken = token }))
@@ -319,6 +401,7 @@ public class SmokeTests
     [InlineData(64 * 1024 * 1024 - 1)]
     [InlineData(64 * 1024 * 1024 + 1)]
     [InlineData(2 * 64 * 1024 * 1024 + 256)]
+    [InlineData(200)]
     public async void ClientCutScenarioTest(int objectSize)
     {
         using var client = Client.GetInstance(GetOptions(this.key, this.url));
@@ -348,7 +431,7 @@ public class SmokeTests
         {
             Header = new ObjectHeader(
                 containerId: containerId,
-                type: ObjectType.Regular,
+                type: ModelsV2.Enums.ObjectType.Regular,
                 new ObjectAttribute("fileName", "test")),
             Payload = new MemoryStream(bytes),
             ClientCut = true
@@ -356,7 +439,7 @@ public class SmokeTests
 
         var objectId = await client.PutObjectAsync(param);
 
-        var filter = new ObjectFilter(ObjectMatchType.Equals, "fileName", "test");
+        var filter = new FilterByAttribute(ObjectMatchType.Equals, "fileName", "test");
 
         bool hasObject = false;
         await foreach (var objId in client.SearchObjectsAsync(new PrmObjectSearch(containerId, filter)))
@@ -385,6 +468,8 @@ public class SmokeTests
 
         Assert.Equal(MD5.HashData(bytes), MD5.HashData(downloadedBytes));
 
+        await CheckFilter(client, containerId, new FilterByRootObject());
+
         await Cleanup(client);
 
         var deadline = DateTime.UtcNow.Add(TimeSpan.FromSeconds(5));
@@ -392,14 +477,14 @@ public class SmokeTests
         IAsyncEnumerator<ContainerId>? enumerator = null;
         do
         {
-            if (deadline <= DateTime.UtcNow)
+           if (deadline <= DateTime.UtcNow)
-            { 
+           { 
-                Assert.Fail("Containers exist");
+               Assert.Fail("Containers exist");
-                break;
+               break;
-            }
+           }
 
-            enumerator = client.ListContainersAsync().GetAsyncEnumerator();
+           enumerator = client.ListContainersAsync().GetAsyncEnumerator();
-            await Task.Delay(500);        
+           await Task.Delay(500);        
         }
         while (await enumerator!.MoveNextAsync());           
     }