[#16] Unit tests

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

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

@@ -0,0 +1,78 @@
+using Moq;
+using FrostFS.Netmap;
+using Grpc.Core;
+using FrostFS.SDK.ClientV2;
+using Google.Protobuf;
+using NuGet.Frameworks;
+
+namespace FrostFS.SDK.Tests;
+
+public class NetworkMocker(string key) : ServiceBase(key)
+{
+    private static readonly string[] parameterKeys = [
+        "ContainerFee",
+        "EpochDuration",
+        "IRCandidateFee",
+        "MaxECDataCount",
+        "MaxECParityCount",
+        "MaxObjectSize",
+        "WithdrawalFee",
+        "HomomorphicHashingDisabled",
+        "MaintenanceModeAllowed" ];
+
+    public Dictionary<string, byte[]>? Parameters { get; set; }
+
+    public Mock<NetmapService.NetmapServiceClient> GetMock()
+    {
+        var mock = new Mock<NetmapService.NetmapServiceClient>();
+
+        var networkInfoResponse = new NetworkInfoResponse();
+
+        var networkConfig = new NetworkConfig();
+
+        foreach (var key in parameterKeys)
+        {
+            networkConfig.Parameters.Add(new NetworkConfig.Types.Parameter
+            {
+                Key = ByteString.CopyFromUtf8(key),
+                Value = (Parameters != null && Parameters.TryGetValue(key, out byte[]? value)) ? ByteString.CopyFrom(value) : ByteString.CopyFrom(0)
+            });
+        }
+
+        var response = new NetworkInfoResponse
+        {
+            Body = new NetworkInfoResponse.Types.Body
+            {
+                NetworkInfo = new NetworkInfo
+                {
+                    CurrentEpoch = 99,
+                    MagicNumber = 13,
+                    MsPerBlock = 999,
+                    NetworkConfig = networkConfig
+                }
+            },
+            MetaHeader = ResponseMetaHeader
+        };
+
+        response.VerifyHeader = GetResponseVerificationHeader(response);
+
+        mock.Setup(x => x.NetworkInfoAsync(
+                It.IsAny<NetworkInfoRequest>(),
+                It.IsAny<Metadata>(),
+                It.IsAny<DateTime?>(),
+                It.IsAny<CancellationToken>()))
+                .Returns((NetworkInfoRequest r, Metadata m, DateTime? dt, CancellationToken ct) =>
+                {
+                    Verifier.CheckRequest(r);
+
+                    return new AsyncUnaryCall<NetworkInfoResponse>(
+                        Task.FromResult(response),
+                        Task.FromResult(ResponseMetaData),
+                        () => new Grpc.Core.Status(StatusCode.OK, string.Empty),
+                        () => ResponseMetaData,
+                        () => { });
+                });
+
+        return mock;
+    }
+}