diff --git a/UnitTest/Bootstrap.Admin/Api/OnlineTest.cs b/UnitTest/Bootstrap.Admin/Api/OnlineTest.cs
index 391ed2bc..c6795b6b 100644
--- a/UnitTest/Bootstrap.Admin/Api/OnlineTest.cs
+++ b/UnitTest/Bootstrap.Admin/Api/OnlineTest.cs
@@ -20,6 +20,13 @@ namespace Bootstrap.Admin.Api
         {
             var urls = await Client.GetAsJsonAsync<IEnumerable<KeyValuePair<DateTime, string>>>("UnitTest");
             Assert.Empty(urls);
-        }
+        }
+
+        [Fact]
+        public async void Put_Ok()
+        {
+            var ret = await Client.PutAsJsonAsync<string, bool>("");
+            Assert.False(ret);
+        }
     }
 }