diff --git a/test/SKIT.FlurlHttpClient.Wechat.TenpayV2.UnitTests/TestCase_ApiExecutePayTests.cs b/test/SKIT.FlurlHttpClient.Wechat.TenpayV2.UnitTests/TestCase_ApiExecutePayTests.cs
index 4afedfb2..1f24a85f 100644
--- a/test/SKIT.FlurlHttpClient.Wechat.TenpayV2.UnitTests/TestCase_ApiExecutePayTests.cs
+++ b/test/SKIT.FlurlHttpClient.Wechat.TenpayV2.UnitTests/TestCase_ApiExecutePayTests.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Threading.Tasks;
 using Xunit;
 
@@ -6,8 +6,27 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV2.UnitTests
 {
     public class TestCase_ApiExecutePayTests
     {
+        [Fact(DisplayName = "测试用例：调用 API [POST] /pay/unifiedorder")]
+        public async Task TestCase_ApiExecuteCreatePayUnifiedOrderTests()
+        {
+            var request = new Models.CreatePayUnifiedOrderRequest()
+            {
+                OutTradeNumber = "TEST_OTN_" + DateTimeOffset.Now.ToString("yyyyMMddHHmmssfff"),
+                Body = "TEST_BODY",
+                TotalFee = 1,
+                ClientIp = "127.0.0.7",
+                AppId = TestConfigs.WechatAppId,
+                OpenId = TestConfigs.WechatOpenId,
+                TradeType = "JSAPI",
+                NotifyUrl = "https://example.com"
+            };
+            var response = await TestClients.Instance.ExecuteCreatePayUnifiedOrderAsync(request);
+
+            Assert.NotNull(response.PrepayId);
+        }
+
         [Fact(DisplayName = "测试用例：调用 API [POST] /pay/micropay")]
-        public async Task TestCase_ApiExecuteExecuteCreatePayMicroPayTests()
+        public async Task TestCase_ApiExecuteCreatePayMicroPayTests()
         {
             var request = new Models.CreatePayMicroPayRequest()
             {
diff --git a/test/SKIT.FlurlHttpClient.Wechat.TenpayV2.UnitTests/TestCase_XmlUtilityTests.cs b/test/SKIT.FlurlHttpClient.Wechat.TenpayV2.UnitTests/TestCase_XmlUtilityTests.cs
new file mode 100644
index 00000000..d7e10486
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.TenpayV2.UnitTests/TestCase_XmlUtilityTests.cs
@@ -0,0 +1,19 @@
+using Newtonsoft.Json.Linq;
+using Xunit;
+
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV2.UnitTests
+{
+    public class TestCase_XmlUtilityTests
+    {
+        [Fact(DisplayName = "测试用例：XML2JSON")]
+        public void TestXmlConvertToJson()
+        {
+            string xml = "<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>";
+            string json = Utilities.XmlUtility.ConvertToJson(xml); ;
+
+            JObject jObject = JObject.Parse(json)!;
+            Assert.Equal("SUCCESS", jObject["return_code"]!.ToString());
+            Assert.Equal("OK", jObject["return_msg"]!.ToString());
+        }
+    }
+}