diff --git a/OpenRa.TechTreeTest/Properties/AssemblyInfo.cs b/OpenRa.TechTreeTest/Properties/AssemblyInfo.cs
index 038d70ecc1..615277e155 100644
--- a/OpenRa.TechTreeTest/Properties/AssemblyInfo.cs
+++ b/OpenRa.TechTreeTest/Properties/AssemblyInfo.cs
@@ -8,9 +8,9 @@ using System.Runtime.InteropServices;
 [assembly: AssemblyTitle("OpenRa.TechTreeTest")]
 [assembly: AssemblyDescription("")]
 [assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("TOSHIBA")]
+[assembly: AssemblyCompany("")]
 [assembly: AssemblyProduct("OpenRa.TechTreeTest")]
-[assembly: AssemblyCopyright("Copyright © TOSHIBA 2007")]
+[assembly: AssemblyCopyright("Copyright © 2007")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
diff --git a/OpenRa.TechTreeTest/TechTree.cs b/OpenRa.TechTreeTest/TechTree.cs
index 9aed014a6c..67655f197b 100644
--- a/OpenRa.TechTreeTest/TechTree.cs
+++ b/OpenRa.TechTreeTest/TechTree.cs
@@ -71,5 +71,23 @@ namespace OpenRa.TechTreeTest
 		{
 			this.friendlyName = friendlyName;
 		}
+
+		public bool ShouldMakeBuildable(IEnumerable<string> buildings)
+		{
+			List<string> p = new List<string>(prerequisites);
+			foreach (string b in buildings)
+				p.Remove(b);
+
+			return p.Count == 0;
+		}
+
+		public bool ShouldMakeUnbuildable(IEnumerable<string> buildings)
+		{
+			List<string> p = new List<string>(prerequisites);
+			foreach (string b in buildings)
+				p.Remove(b);
+
+			return p.Count == prerequisites.Length;
+		}
 	}
 }