[#16] Client: Unit tests

Signed-off-by: Pavel Gross <p.gross@yando.com>

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

@@ -3,6 +3,7 @@ using Grpc.Net.Client;
 using System;
 using System.Security.Cryptography;
 using FrostFS.SDK.Cryptography;
+using System.Buffers;
 
 namespace FrostFS.SDK.ClientV2;
 

src/FrostFS.SDK.Tests/Mocks/ContainerServiceMocks/ContainerServiceBase.cs

@@ -27,6 +27,12 @@ public abstract class ServiceBase(string key)
     public static BasicAcl DefaultAcl { get; } = BasicAcl.PublicRW;
     public static PlacementPolicy DefaultPlacementPolicy { get; } = new PlacementPolicy(true, new Replica(1));
 
+    public Metadata Metadata { get; protected set; }
+    public DateTime? DateTime { get; protected set; }
+    public CancellationToken CancellationToken { get; protected set; }
+
+    public CancellationTokenSource CancellationTokenSource { get; protected set; } = new CancellationTokenSource();
+
     public static Metadata ResponseMetaData => [];
 
     protected ResponseVerificationHeader GetResponseVerificationHeader(IResponse response)

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

@@ -3,24 +3,40 @@ using FrostFS.Netmap;
 using Grpc.Core;
 using FrostFS.SDK.ClientV2;
 using Google.Protobuf;
+using FrostFS.SDK.ModelsV2;
 
 namespace FrostFS.SDK.Tests;
 
 public class NetworkMocker(string key) : ServiceBase(key)
 {
-    private static readonly string[] parameterKeys = [
+    internal static readonly string[] ParameterKeys = [
+        "AuditFee",
+        "BasicIncomeRate",
         "ContainerFee",
+        "ContainerAliasFee",
         "EpochDuration",
-        "IRCandidateFee",
+        "InnerRingCandidateFee",
         "MaxECDataCount",
         "MaxECParityCount",
         "MaxObjectSize",
-        "WithdrawalFee",
+        "WithdrawFee",
         "HomomorphicHashingDisabled",
-        "MaintenanceModeAllowed" ];
+        "MaintenanceModeAllowed"
+    ];
 
     public Dictionary<string, byte[]>? Parameters { get; set; }
 
+    public LocalNodeInfoResponse NodeInfoResponse { get; set; }
+
+    public LocalNodeInfoRequest LocalNodeInfoRequest { get; set; }
+
+    public NetworkInfoRequest NetworkInfoRequest { get; set; }
+
+    public NetmapSnapshotResponse NetmapSnapshotResponse { get; set; }
+
+    public NetmapSnapshotRequest NetmapSnapshotRequest { get; set; }
+
+
     public Mock<NetmapService.NetmapServiceClient> GetMock()
     {
         var mock = new Mock<NetmapService.NetmapServiceClient>();
@@ -29,7 +45,7 @@ public class NetworkMocker(string key) : ServiceBase(key)
 
         var networkConfig = new NetworkConfig();
 
-        foreach (var key in parameterKeys)
+        foreach (var key in ParameterKeys)
         {
             networkConfig.Parameters.Add(new NetworkConfig.Types.Parameter
             {
@@ -62,7 +78,10 @@ public class NetworkMocker(string key) : ServiceBase(key)
                 It.IsAny<CancellationToken>()))
                 .Returns((NetworkInfoRequest r, Metadata m, DateTime? dt, CancellationToken ct) =>
                 {
-                    Verifier.CheckRequest(r);
+                    NetworkInfoRequest = r;
+                    Metadata = m;
+                    DateTime = dt;
+                    CancellationToken = ct;
 
                     return new AsyncUnaryCall<NetworkInfoResponse>(
                         Task.FromResult(response),
@@ -72,6 +91,58 @@ public class NetworkMocker(string key) : ServiceBase(key)
                         () => { });
                 });
 
+        if (NodeInfoResponse != null)
+        {
+            NodeInfoResponse.MetaHeader = ResponseMetaHeader;
+            NodeInfoResponse.VerifyHeader = GetResponseVerificationHeader(NodeInfoResponse);
+
+            mock.Setup(x => x.LocalNodeInfoAsync(
+                    It.IsAny<LocalNodeInfoRequest>(),
+                    It.IsAny<Metadata>(),
+                    It.IsAny<DateTime?>(),
+                    It.IsAny<CancellationToken>()))
+                    .Returns((LocalNodeInfoRequest r, Metadata m, DateTime? dt, CancellationToken ct) =>
+                    {
+                        LocalNodeInfoRequest = r;
+                        Metadata = m;
+                        DateTime = dt;
+                        CancellationToken = ct;
+
+                        return new AsyncUnaryCall<LocalNodeInfoResponse>(
+                            Task.FromResult(NodeInfoResponse),
+                            Task.FromResult(ResponseMetaData),
+                            () => new Grpc.Core.Status(StatusCode.OK, string.Empty),
+                            () => ResponseMetaData,
+                            () => { });
+                    });
+        }
+
+        if (NetmapSnapshotResponse != null)
+        {
+            NetmapSnapshotResponse.MetaHeader = ResponseMetaHeader;
+            NetmapSnapshotResponse.VerifyHeader = GetResponseVerificationHeader(NetmapSnapshotResponse);
+
+            mock.Setup(x => x.NetmapSnapshotAsync(
+                   It.IsAny<NetmapSnapshotRequest>(),
+                   It.IsAny<Metadata>(),
+                   It.IsAny<DateTime?>(),
+                   It.IsAny<CancellationToken>()))
+                   .Returns((NetmapSnapshotRequest r, Metadata m, DateTime? dt, CancellationToken ct) =>
+                   {
+                       NetmapSnapshotRequest = r;
+                       Metadata = m;
+                       DateTime = dt;
+                       CancellationToken = ct;
+
+                       return new AsyncUnaryCall<NetmapSnapshotResponse>(
+                           Task.FromResult(NetmapSnapshotResponse),
+                           Task.FromResult(ResponseMetaData),
+                           () => new Grpc.Core.Status(StatusCode.OK, string.Empty),
+                           () => ResponseMetaData,
+                           () => { });
+                   });
+        }
+
         return mock;
     }
 }

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

@@ -1,8 +1,7 @@
-using Moq;
 using FrostFS.Session;
-using Grpc.Core;
-using FrostFS.SDK.ClientV2;
 using Google.Protobuf;
+using Grpc.Core;
+using Moq;
 
 namespace FrostFS.SDK.Tests;
 
@@ -12,23 +11,32 @@ public class SessionMocker(string key) : ServiceBase(key)
 
     public byte[]? SessionKey { get; set; }
 
+    public CreateRequest CreateSessionRequest { get; private set; }
+
     public Mock<SessionService.SessionServiceClient> GetMock()
     {
         var mock = new Mock<SessionService.SessionServiceClient>();
 
         Random rand = new();
-        SessionId = new byte[32];
-        SessionKey = new byte[32];
 
+        if (SessionId == null)
+        {
+            SessionId = new byte[32];
             rand.NextBytes(SessionId);
+        }
+
+        if (SessionKey == null)
+        {
+            SessionKey = new byte[32];
             rand.NextBytes(SessionKey);
+        }
 
         CreateResponse response = new()
         {
             Body = new CreateResponse.Types.Body
             {
                 Id = ByteString.CopyFrom(SessionId),
-                SessionKey = ByteString.CopyFrom(SessionId)
+                SessionKey = ByteString.CopyFrom(SessionKey)
             },
             MetaHeader = ResponseMetaHeader
         };
@@ -42,7 +50,10 @@ public class SessionMocker(string key) : ServiceBase(key)
             It.IsAny<CancellationToken>()))
             .Returns((CreateRequest r, Metadata m, DateTime? dt, CancellationToken ct) =>
             {
-                    Verifier.CheckRequest(r);
+                CreateSessionRequest = r;
+                Metadata = m;
+                DateTime = dt;
+                CancellationToken = ct;
 
                 return new AsyncUnaryCall<CreateResponse>(
                 Task.FromResult(response),

src/FrostFS.SDK.Tests/NetworkTest.cs

@@ -0,0 +1,303 @@
+using FrostFS.Netmap;
+using FrostFS.SDK.ClientV2;
+using FrostFS.SDK.ClientV2.Interfaces;
+using FrostFS.SDK.ClientV2.Parameters;
+using FrostFS.SDK.Cryptography;
+using FrostFS.SDK.ModelsV2;
+using FrostFS.SDK.ModelsV2.Enums;
+using Google.Protobuf;
+using Microsoft.Extensions.Options;
+using System.Security.Cryptography;
+using System.Threading;
+
+namespace FrostFS.SDK.Tests;
+
+public abstract class NetworkTestsBase
+{
+    protected readonly string key = "KwHDAJ66o8FoLBjVbjP2sWBmgBMGjt7Vv4boA7xQrBoAYBE397Aq";
+
+    protected IOptions<SingleOwnerClientSettings> Settings { get; set; }
+
+    protected ModelsV2.Version Version { get; set; } = new ModelsV2.Version(2, 13);
+
+    protected ECDsa ECDsaKey { get; set; }
+    protected OwnerId OwnerId { get; set; }
+    protected NetworkMocker Mocker { get; set; }
+
+    protected NetworkTestsBase()
+    {
+        Settings = Options.Create(new SingleOwnerClientSettings
+        {
+            Key = key,
+            Host = "http://localhost:8080"
+        });
+
+        ECDsaKey = key.LoadWif();
+        OwnerId = OwnerId.FromKey(ECDsaKey);
+
+        Mocker = new NetworkMocker(this.key);
+    }
+
+    protected IFrostFSClient GetClient()
+    {
+        return ClientV2.Client.GetTestInstance(
+            Settings,
+            null,
+            Mocker.GetMock().Object,
+            new SessionMocker(this.key).GetMock().Object,
+            new ContainerMocker(this.key).GetMock().Object,
+            new ObjectMocker(this.key).GetMock().Object);
+    }
+}
+
+public class NetworkTest : NetworkTestsBase
+{
+    [Theory]
+    [InlineData(false)]
+    [InlineData(true)]
+    public async void NetworkSettingsTest(bool useContext)
+    {
+        Mocker.Parameters = new Dictionary<string, byte[]>
+        {
+            { "AuditFee", [1] },
+            { "BasicIncomeRate", [2] },
+            { "ContainerFee", [3] },
+            { "ContainerAliasFee", [4] },
+            { "EpochDuration", [5] },
+            { "InnerRingCandidateFee", [6] },
+            { "MaxECDataCount", [7] },
+            { "MaxECParityCount", [8] },
+            { "MaxObjectSize", [9] },
+            { "WithdrawFee", [10] },
+            { "HomomorphicHashingDisabled", [1] },
+            { "MaintenanceModeAllowed", [1] },
+        };
+
+        var param = new PrmNetworkSettings();
+
+        if (useContext)
+        {
+            param.Context = new Context
+            {
+                CancellationToken = Mocker.CancellationTokenSource.Token,
+                Timeout = TimeSpan.FromSeconds(20),
+                OwnerId = OwnerId,
+                Key = ECDsaKey,
+                Version = Version
+            };
+        }
+
+        var validTimeoutFrom = DateTime.UtcNow.AddSeconds(20);
+        
+        var result = await GetClient().GetNetworkSettingsAsync(param);
+        
+        var validTimeoutTo = DateTime.UtcNow.AddSeconds(20);
+
+        Assert.NotNull(result);
+
+        Assert.Equal(Mocker.Parameters["AuditFee"], [(byte)result.AuditFee]);
+        Assert.Equal(Mocker.Parameters["BasicIncomeRate"], [(byte)result.BasicIncomeRate]);
+        Assert.Equal(Mocker.Parameters["ContainerFee"], [(byte)result.ContainerFee]);
+        Assert.Equal(Mocker.Parameters["ContainerAliasFee"], [(byte)result.ContainerAliasFee]);
+        Assert.Equal(Mocker.Parameters["EpochDuration"], [(byte)result.EpochDuration]);
+        Assert.Equal(Mocker.Parameters["InnerRingCandidateFee"], [(byte)result.InnerRingCandidateFee]);
+        Assert.Equal(Mocker.Parameters["MaxECDataCount"], [(byte)result.MaxECDataCount]);
+        Assert.Equal(Mocker.Parameters["MaxECParityCount"], [(byte)result.MaxECParityCount]);
+        Assert.Equal(Mocker.Parameters["MaxObjectSize"], [(byte)result.MaxObjectSize]);
+        Assert.Equal(Mocker.Parameters["WithdrawFee"], [(byte)result.WithdrawFee]);
+       
+        Assert.True(result.HomomorphicHashingDisabled);
+        Assert.True(result.MaintenanceModeAllowed);
+
+        if (useContext)
+        {
+            Assert.Equal(Mocker.CancellationTokenSource.Token, Mocker.CancellationToken);
+            Assert.NotNull(Mocker.DateTime);
+
+            Assert.True(Mocker.DateTime.Value >= validTimeoutFrom);
+            Assert.True(Mocker.DateTime.Value <= validTimeoutTo);
+        }
+        else
+        {
+            Assert.Empty(Mocker.NetworkInfoRequest.MetaHeader.XHeaders);
+            Assert.Null(Mocker.DateTime);
+        }
+    }
+
+    [Theory]
+    [InlineData(false)]
+    [InlineData(true)]
+    public async void NetmapSnapshotTest(bool useContext)
+    {
+        var body = new NetmapSnapshotResponse.Types.Body
+        {
+            Netmap = new Netmap.Netmap { Epoch = 99 }
+        };
+
+        var nodeInfo1 = new NodeInfo
+        {
+            State = NodeInfo.Types.State.Online,
+            PublicKey = ByteString.CopyFrom([1, 2, 3])
+        };
+
+        nodeInfo1.Addresses.Add("address1");
+        nodeInfo1.Addresses.Add("address2");
+        nodeInfo1.Attributes.Add(new NodeInfo.Types.Attribute { Key = "key1", Value = "value1"});
+        nodeInfo1.Attributes.Add(new NodeInfo.Types.Attribute { Key = "key2", Value = "value2" });
+
+        var nodeInfo2 = new NodeInfo
+        {
+            State = NodeInfo.Types.State.Offline,
+            PublicKey = ByteString.CopyFrom([3,4,5])
+        };
+
+        nodeInfo2.Addresses.Add("address3");
+        nodeInfo2.Attributes.Add(new NodeInfo.Types.Attribute { Key = "key3", Value = "value3" });
+
+        body.Netmap.Nodes.Add(nodeInfo1);
+        body.Netmap.Nodes.Add(nodeInfo2);
+
+        Mocker.NetmapSnapshotResponse = new NetmapSnapshotResponse { Body = body };
+
+        var param = new PrmNetmapSnapshot();
+
+        if (useContext)
+        {
+            param.XHeaders.Add("headerKey1", "headerValue1");
+            param.Context = new Context
+            {
+                CancellationToken = Mocker.CancellationTokenSource.Token,
+                Timeout = TimeSpan.FromSeconds(20),
+                OwnerId = OwnerId,
+                Key = ECDsaKey,
+                Version = Version
+            };
+        }
+
+        var validTimeoutFrom = DateTime.UtcNow.AddSeconds(20);
+
+        var result = await GetClient().GetNetmapSnapshotAsync(param);
+
+        var validTimeoutTo = DateTime.UtcNow.AddSeconds(20);
+
+        Assert.NotNull(result);
+
+        Assert.Equal(99u, result.Epoch);
+        Assert.Equal(2, result.NodeInfoCollection.Count);
+
+        var node1 = result.NodeInfoCollection[0];
+        Assert.Equal(NodeState.Online, node1.State);
+        Assert.Equal(2, node1.Addresses.Count);
+        Assert.Equal("address1", node1.Addresses.ElementAt(0));
+        Assert.Equal("address2", node1.Addresses.ElementAt(1));
+        
+        Assert.Equal(2, node1.Attributes.Count);
+
+        Assert.Equal("key1", node1.Attributes.ElementAt(0).Key);
+        Assert.Equal("value1", node1.Attributes.ElementAt(0).Value);
+        Assert.Equal("key2", node1.Attributes.ElementAt(1).Key);
+        Assert.Equal("value2", node1.Attributes.ElementAt(1).Value);
+
+        var node2 = result.NodeInfoCollection[1];
+        Assert.Equal(NodeState.Offline, node2.State);
+        Assert.Single(node2.Addresses);
+        Assert.Equal("address3", node2.Addresses.ElementAt(0));
+        
+        Assert.Single(node2.Attributes);
+
+        Assert.Equal("key3", node2.Attributes.ElementAt(0).Key);
+        Assert.Equal("value3", node2.Attributes.ElementAt(0).Value);
+
+        if (useContext)
+        {
+            Assert.Single(Mocker.NetmapSnapshotRequest.MetaHeader.XHeaders);
+            Assert.Equal(param.XHeaders.Keys[0], Mocker.NetmapSnapshotRequest.MetaHeader.XHeaders.First().Key);
+            Assert.Equal(param.XHeaders[param.XHeaders.Keys[0]], Mocker.NetmapSnapshotRequest.MetaHeader.XHeaders.First().Value);
+
+            Assert.Equal(Mocker.CancellationTokenSource.Token, Mocker.CancellationToken);
+            Assert.NotNull(Mocker.DateTime);
+
+            Assert.True(Mocker.DateTime.Value >= validTimeoutFrom);
+            Assert.True(Mocker.DateTime.Value <= validTimeoutTo);
+        }
+        else
+        {
+            Assert.Empty(Mocker.NetmapSnapshotRequest.MetaHeader.XHeaders);
+            Assert.Null(Mocker.DateTime);
+        }
+    }
+
+    [Theory]
+    [InlineData(false)]
+    [InlineData(true)]
+    public async void NodeInfoTest(bool useContext)
+    {
+        var body = new LocalNodeInfoResponse.Types.Body
+        {
+            NodeInfo = new NodeInfo()
+            {
+                State = NodeInfo.Types.State.Online,
+                PublicKey = ByteString.CopyFrom([1, 2, 3])
+            },
+            Version = new Refs.Version { Major = 2, Minor = 12 }
+        };
+                
+        body.NodeInfo.Addresses.Add("address1");
+        body.NodeInfo.Addresses.Add("address2");
+        body.NodeInfo.Attributes.Add(new NodeInfo.Types.Attribute { Key = "key1", Value = "value1"});
+        body.NodeInfo.Attributes.Add(new NodeInfo.Types.Attribute { Key = "key2", Value = "value2" });
+
+        Mocker.NodeInfoResponse = new LocalNodeInfoResponse { Body = body };
+
+        var param = new PrmNodeInfo();
+
+        if (useContext)
+        {
+            param.XHeaders.Add("headerKey1", "headerValue1");
+            param.Context = new Context
+            {
+                CancellationToken = Mocker.CancellationTokenSource.Token,
+                Timeout = TimeSpan.FromSeconds(20),
+                OwnerId = OwnerId,
+                Key = ECDsaKey,
+                Version = Version
+            };
+        }
+
+        var validTimeoutFrom = DateTime.UtcNow.AddSeconds(20);
+
+        var result = await GetClient().GetNodeInfoAsync(param);
+
+        var validTimeoutTo = DateTime.UtcNow.AddSeconds(20);
+
+        Assert.NotNull(result);
+
+        Assert.Equal(NodeState.Online, result.State);
+        
+        Assert.Equal(2, result.Addresses.Count);
+        Assert.Equal("address1", result.Addresses.ElementAt(0));
+        Assert.Equal("address2", result.Addresses.ElementAt(1));
+        
+        Assert.Equal(2, result.Attributes.Count);
+        Assert.Equal("value1", result.Attributes["key1"]);
+        Assert.Equal("value2", result.Attributes["key2"]);
+
+        if (useContext)
+        {
+            Assert.Single(Mocker.LocalNodeInfoRequest.MetaHeader.XHeaders);
+            Assert.Equal(param.XHeaders.Keys[0], Mocker.LocalNodeInfoRequest.MetaHeader.XHeaders.First().Key);
+            Assert.Equal(param.XHeaders[param.XHeaders.Keys[0]], Mocker.LocalNodeInfoRequest.MetaHeader.XHeaders.First().Value);
+
+            Assert.Equal(Mocker.CancellationTokenSource.Token, Mocker.CancellationToken);
+            Assert.NotNull(Mocker.DateTime);
+
+            Assert.True(Mocker.DateTime.Value >= validTimeoutFrom);
+            Assert.True(Mocker.DateTime.Value <= validTimeoutTo);
+        }
+        else
+        {
+            Assert.Empty(Mocker.LocalNodeInfoRequest.MetaHeader.XHeaders);
+            Assert.Null(Mocker.DateTime);
+        }
+    }
+}

src/FrostFS.SDK.Tests/SessionTests.cs

@@ -0,0 +1,127 @@
+using FrostFS.SDK.ClientV2;
+using FrostFS.SDK.ClientV2.Interfaces;
+using FrostFS.SDK.ClientV2.Mappers.GRPC;
+using FrostFS.SDK.ClientV2.Mappers.GRPC.Netmap;
+using FrostFS.SDK.ClientV2.Parameters;
+using FrostFS.SDK.Cryptography;
+using FrostFS.SDK.ModelsV2;
+using FrostFS.SDK.ModelsV2.Netmap;
+using Microsoft.Extensions.Options;
+using System.Security.Cryptography;
+
+namespace FrostFS.SDK.Tests;
+
+public abstract class SessionTestsBase
+{
+    protected readonly string key = "KwHDAJ66o8FoLBjVbjP2sWBmgBMGjt7Vv4boA7xQrBoAYBE397Aq";
+
+    protected IOptions<SingleOwnerClientSettings> Settings { get; set; }
+
+ 
+    protected ECDsa ECDsaKey { get; set; }
+    protected OwnerId OwnerId { get; set; }
+    protected SessionMocker Mocker { get; set; }
+
+    protected SessionTestsBase()
+    {
+        Settings = Options.Create(new SingleOwnerClientSettings
+        {
+            Key = key,
+            Host = "http://localhost:8080"
+        });
+
+        ECDsaKey = key.LoadWif();
+        OwnerId = OwnerId.FromKey(ECDsaKey);
+
+        Mocker = new SessionMocker(this.key)
+        {
+            PlacementPolicy = new PlacementPolicy(true, new Replica(1)),
+            Version = new ModelsV2.Version(2, 13)
+        };
+    }
+
+    protected IFrostFSClient GetClient()
+    {
+        return ClientV2.Client.GetTestInstance(
+            Settings,
+            null,
+            new NetworkMocker(this.key).GetMock().Object,
+            Mocker.GetMock().Object,
+            new ContainerMocker(this.key).GetMock().Object,
+            new ObjectMocker(this.key).GetMock().Object);
+    }
+}
+
+public class SessionTest : SessionTestsBase
+{
+    [Theory]
+    [InlineData(false)]
+    [InlineData(true)]
+    public async void CreateSessionTest(bool useContext)
+    {
+        var exp = 100u;
+        var param = new PrmSessionCreate(exp);
+
+        if (useContext)
+        {
+            param.XHeaders.Add("headerKey1", "headerValue1");
+            param.Context = new Context
+            {
+                CancellationToken = Mocker.CancellationTokenSource.Token,
+                Timeout = TimeSpan.FromSeconds(20),
+                OwnerId = OwnerId,
+                Key = ECDsaKey,
+                Version = Mocker.Version
+            };
+        }
+
+        var validTimeoutFrom = DateTime.UtcNow.AddSeconds(20);
+
+        var result = await GetClient().CreateSessionAsync(param);
+
+        var validTimeoutTo = DateTime.UtcNow.AddSeconds(20);
+
+        Assert.NotNull(result);
+        Assert.NotNull(result.Token);
+
+        var session = new Session.SessionToken().Deserialize(result.Token);
+
+        Assert.Equal(Mocker.SessionId, session.Body.Id);
+        Assert.Equal(Mocker.SessionKey, session.Body.SessionKey);
+
+        Assert.Equal(OwnerId.ToMessage(), session.Body.OwnerId);
+        Assert.Equal(exp, session.Body.Lifetime.Exp);
+        Assert.Equal(exp, session.Body.Lifetime.Iat);
+        Assert.Equal(exp, session.Body.Lifetime.Nbf);
+        Assert.Null(session.Body.Container);
+
+        Assert.NotNull(Mocker.CreateSessionRequest);
+
+        Assert.Equal(OwnerId.ToMessage(), Mocker.CreateSessionRequest.Body.OwnerId);
+        Assert.Equal(exp, Mocker.CreateSessionRequest.Body.Expiration);
+        Assert.NotNull(Mocker.CreateSessionRequest.MetaHeader);
+        Assert.Equal(Mocker.Version.ToMessage(), Mocker.CreateSessionRequest.MetaHeader.Version);
+       
+   
+        Assert.Null(Mocker.Metadata);
+
+        if (useContext)
+        {
+            Assert.Single(Mocker.CreateSessionRequest.MetaHeader.XHeaders);
+            Assert.Equal(param.XHeaders.Keys[0], Mocker.CreateSessionRequest.MetaHeader.XHeaders.First().Key);
+            Assert.Equal(param.XHeaders[param.XHeaders.Keys[0]], Mocker.CreateSessionRequest.MetaHeader.XHeaders.First().Value);
+
+            Assert.Equal(Mocker.CancellationTokenSource.Token, Mocker.CancellationToken);
+            Assert.NotNull(Mocker.DateTime);
+
+            Assert.True(Mocker.DateTime.Value >= validTimeoutFrom);
+            Assert.True(Mocker.DateTime.Value <= validTimeoutTo);
+            Assert.True(validTimeoutTo.Ticks >= Mocker.DateTime.Value.Ticks);
+        }
+        else
+        {
+            Assert.Empty(Mocker.CreateSessionRequest.MetaHeader.XHeaders);
+            Assert.Null(Mocker.DateTime);
+        }
+    }
+}