--- a/API/Savers/IWarFoundryFileSaverTests.cs	Wed Oct 26 15:46:48 2011 +0100
+++ b/API/Savers/IWarFoundryFileSaverTests.cs	Fri Oct 28 20:52:01 2011 +0100
@@ -367,6 +367,38 @@
 			}
 		}
 
+		[Test()]
+		public void TestGameSystemWithCategories()
+		{
+
+			string tempFile = Path.GetTempFileName();
+			try
+			{
+				MockGameSystem obj = new MockGameSystem();
+				Category heroCat = new Category("cat1", "Heroes");
+				heroCat.MaximumPercentage = 25;
+				heroCat.MaximumPoints = 1000;
+				obj.AddCategory(heroCat);
+				Category warriorCat = new Category("cat2", "Warriors");
+				warriorCat.MinimumPercentage = 35;
+				warriorCat.MinimumPoints = 500;
+				obj.AddCategory(warriorCat);
+				GetSaver().Save(tempFile, obj);
+				ZipFile file = new ZipFile(tempFile);
+				ZipEntry zipEntry = file.GetEntry(GetEntryName(obj));
+				Stream stream = file.GetInputStream(zipEntry);
+				Assert.That(StreamUtil.ToBytes(stream), Is.EqualTo(GetGameSystemContentWithCategories()));
+				file.Close();
+			}
+			finally
+			{
+				if (File.Exists(tempFile))
+				{
+					File.Delete(tempFile);
+				}
+			}
+		}
+
 		protected abstract IWarFoundryFileSaver GetSaver();
 
 		protected abstract string GetEntryName(WarFoundryLoadedObject obj);
@@ -390,5 +422,7 @@
 		protected abstract byte[] GetGameSystemContentWithPointsNameBytes(string singular, string plural);
 
 		protected abstract byte[] GetGameSystemContentWithPointsAbbrevsAndNameBytes(string singular, string plural, string singularName, string pluralName);
+
+		protected abstract byte[] GetGameSystemContentWithCategories();
 	}
 }