diff --git a/tests/Dtmgrpc.IntegrationTests/Dtmgrpc.IntegrationTests.csproj b/tests/Dtmgrpc.IntegrationTests/Dtmgrpc.IntegrationTests.csproj
index 28b9aec..42a896c 100644
--- a/tests/Dtmgrpc.IntegrationTests/Dtmgrpc.IntegrationTests.csproj
+++ b/tests/Dtmgrpc.IntegrationTests/Dtmgrpc.IntegrationTests.csproj
@@ -24,6 +24,7 @@
 	<ItemGroup>
 		<ProjectReference Include="..\..\src\Dtmgrpc\Dtmgrpc.csproj" />
 		<ProjectReference Include="..\..\src\DtmSERedisBarrier\DtmSERedisBarrier.csproj" />
+		<ProjectReference Include="..\..\src\Dtmworkflow\Dtmworkflow.csproj" />
 	</ItemGroup>
 
 	<ItemGroup>
diff --git a/tests/Dtmgrpc.IntegrationTests/ITTestHelper.cs b/tests/Dtmgrpc.IntegrationTests/ITTestHelper.cs
index 7943580..48a1b8f 100644
--- a/tests/Dtmgrpc.IntegrationTests/ITTestHelper.cs
+++ b/tests/Dtmgrpc.IntegrationTests/ITTestHelper.cs
@@ -3,6 +3,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
+using Dtmworkflow;
 using Xunit.Abstractions;
 using Xunit.Sdk;
 
@@ -13,6 +14,7 @@ public class ITTestHelper
         public static string DTMHttpUrl = "http://localhost:36789";
         public static string DTMgRPCUrl = "http://localhost:36790";
         public static string BuisgRPCUrl = "localhost:5005";
+        public static string BuisgRPCUrlWithProtocol = "http://localhost:5005";
         private static System.Net.Http.HttpClient _client = new System.Net.Http.HttpClient();
 
         public static async Task<string> GetTranStatus(string gid)
@@ -67,6 +69,13 @@ public static ServiceProvider AddDtmGrpc(int dtmTimout = 10000)
             services.AddLogging();
             services.AddDtmGrpc(x =>
             {
+                x.DtmUrl = DTMHttpUrl;
+                x.DtmGrpcUrl = DTMgRPCUrl;
+                x.DtmTimeout = dtmTimout;
+            });
+            services.AddDtmWorkflow(x =>
+            {
+                x.DtmUrl = DTMHttpUrl;
                 x.DtmGrpcUrl = DTMgRPCUrl;
                 x.DtmTimeout = dtmTimout;
             });
diff --git a/tests/Dtmgrpc.IntegrationTests/WorkflowGrpcTest.cs b/tests/Dtmgrpc.IntegrationTests/WorkflowGrpcTest.cs
new file mode 100644
index 0000000..81fbde0
--- /dev/null
+++ b/tests/Dtmgrpc.IntegrationTests/WorkflowGrpcTest.cs
@@ -0,0 +1,98 @@
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using busi;
+using Dtmworkflow;
+using Grpc.Net.Client;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Xunit;
+
+namespace Dtmgrpc.IntegrationTests
+{
+    public class WorkflowGrpcTest
+    {
+        [Fact]
+        public async Task Execute_Http_Should_Succeed()
+        {
+            var provider = ITTestHelper.AddDtmGrpc();
+            var workflowFactory = provider.GetRequiredService<IWorkflowFactory>();
+            var loggerFactory = provider.GetRequiredService<ILoggerFactory>();
+            WorlflowGlobalTransaction workflowGlobalTransaction = new WorlflowGlobalTransaction(workflowFactory, loggerFactory);
+
+            string wfName1 = $"wf-simple-{Guid.NewGuid().ToString("D")[..8]}";
+            workflowGlobalTransaction.Register(wfName1, async (workflow, data) => await Task.FromResult("my result"u8.ToArray()));
+
+            string gid = wfName1 + Guid.NewGuid().ToString()[..8];
+            var req = ITTestHelper.GenBusiReq(false, false);
+            await workflowGlobalTransaction.Execute(wfName1, gid, Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(req)), isHttp: true);
+
+            string status = await ITTestHelper.GetTranStatus(gid);
+            Assert.Equal("succeed", status);
+        }
+
+        [Fact]
+        public async Task Execute_gPRC_Should_Succeed()
+        {
+            var provider = ITTestHelper.AddDtmGrpc();
+            var workflowFactory = provider.GetRequiredService<IWorkflowFactory>();
+            var loggerFactory = provider.GetRequiredService<ILoggerFactory>();
+            WorlflowGlobalTransaction workflowGlobalTransaction = new WorlflowGlobalTransaction(workflowFactory, loggerFactory);
+
+            string wfName1 = $"wf-simple-{Guid.NewGuid().ToString("D")[..8]}";
+            workflowGlobalTransaction.Register(wfName1, async (workflow, data) => await Task.FromResult("my result"u8.ToArray()));
+
+            string gid = wfName1 + Guid.NewGuid().ToString()[..8];
+            var req = ITTestHelper.GenBusiReq(false, false);
+            await workflowGlobalTransaction.Execute(wfName1, gid, Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(req)), isHttp: false);
+
+            string status = await ITTestHelper.GetTranStatus(gid);
+            Assert.Equal("succeed", status);
+        }
+
+        [Fact]
+        public async Task Execute_Success()
+        {
+            var provider = ITTestHelper.AddDtmGrpc();
+            var workflowFactory = provider.GetRequiredService<IWorkflowFactory>();
+            var loggerFactory = provider.GetRequiredService<ILoggerFactory>();
+            WorlflowGlobalTransaction workflowGlobalTransaction = new WorlflowGlobalTransaction(workflowFactory, loggerFactory);
+
+            Busi.BusiClient busiClient = new Busi.BusiClient(GrpcChannel.ForAddress(ITTestHelper.BuisgRPCUrlWithProtocol));
+
+            string wfName1 = $"wf-simple-{Guid.NewGuid().ToString("D")[..8]}";
+            workflowGlobalTransaction.Register(wfName1, async (workflow, data) =>
+            {
+                BusiReq request = JsonConvert.DeserializeObject<BusiReq>(Encoding.UTF8.GetString(data));
+                workflow.NewBranch().OnRollback(async (barrier) =>
+                {
+                    await busiClient.TransInRevertAsync(request);
+                });
+                await busiClient.TransInAsync(request);
+
+                workflow.NewBranch().OnRollback(async (barrier) =>
+                {
+                    await busiClient.TransOutRevertAsync(request);
+                });
+                await busiClient.TransOutAsync(request);
+
+                return await Task.FromResult("my result"u8.ToArray());
+            });
+
+            string gid = wfName1 + Guid.NewGuid().ToString()[..8];
+            var req = ITTestHelper.GenBusiReq(false, false);
+            byte[] result = await workflowGlobalTransaction.Execute(wfName1, gid, Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(req)));
+            Assert.Equal("my result", Encoding.UTF8.GetString(result));
+            string status = await ITTestHelper.GetTranStatus(gid);
+            Assert.Equal("succeed", status);
+            
+            // again
+            result = await workflowGlobalTransaction.Execute(wfName1, gid, Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(req)));
+            Assert.Equal("my result", Encoding.UTF8.GetString(result));
+            status = await ITTestHelper.GetTranStatus(gid);
+            Assert.Equal("succeed", status);
+        }
+    }
+}
\ No newline at end of file