public async Task UpdateAlertPolicyAsync2() { Mock <AlertPolicyService.AlertPolicyServiceClient> mockGrpcClient = new Mock <AlertPolicyService.AlertPolicyServiceClient>(MockBehavior.Strict); UpdateAlertPolicyRequest request = new UpdateAlertPolicyRequest { AlertPolicy = new AlertPolicy(), }; AlertPolicy expectedResponse = new AlertPolicy { Name = "name3373707", DisplayName = "displayName1615086568", }; mockGrpcClient.Setup(x => x.UpdateAlertPolicyAsync(request, It.IsAny <CallOptions>())) .Returns(new Grpc.Core.AsyncUnaryCall <AlertPolicy>(Task.FromResult(expectedResponse), null, null, null, null)); AlertPolicyServiceClient client = new AlertPolicyServiceClientImpl(mockGrpcClient.Object, null); AlertPolicy response = await client.UpdateAlertPolicyAsync(request); Assert.Same(expectedResponse, response); mockGrpcClient.VerifyAll(); }