Add one more unit test

Author: Toastbrot236

RefreshTests.GameServer/Tests/Levels/PublishEndpointsTests.cs

@@ -267,6 +267,27 @@ public void CantPublishLevelWithNoRootResource()
         Assert.That(message.StatusCode, Is.EqualTo(BadRequest));
     }
 
+    [Test]
+    public void CantPublishLevelWithGuidRootResource()
+    {
+        using TestContext context = this.GetServer();
+        GameUser user = context.CreateUser();
+
+        using HttpClient client = context.GetAuthenticatedClient(TokenType.Game, user);
+
+        GameLevelRequest level = new()
+        {
+            Title = "Garbage!",
+            RootResource = "g26417",
+        };
+
+        HttpResponseMessage message = client.PostAsync("/lbp/startPublish", new StringContent(level.AsXML())).Result;
+        Assert.That(message.StatusCode, Is.EqualTo(BadRequest));
+        
+        message = client.PostAsync("/lbp/publish", new StringContent(level.AsXML())).Result;
+        Assert.That(message.StatusCode, Is.EqualTo(BadRequest));
+    }
+    
     [Test]
     public void CantPublishLevelWithMissingRootResource()
     {