Throw on SetUpFixture (#63)

WoofWare.NUnitTestRunner.Lib/TestFixture.fs

@@ -168,8 +168,6 @@ module TestFixture =
                 | "NUnit.Framework.IgnoreException" -> Ok (Some (TestMemberSuccess.Ignored (Option.ofObj exc.Message)))
                 | "NUnit.Framework.InconclusiveException" ->
                     Ok (Some (TestMemberSuccess.Inconclusive (Option.ofObj exc.Message)))
-                | s when s.StartsWith ("NUnit.Framework.", StringComparison.Ordinal) ->
-                    failwith $"Unrecognised special exception: %s{s}"
                 | _ -> Error orig
             | Error orig -> Error orig
 
@@ -542,6 +540,12 @@ module TestFixture =
     /// Interpret this type as a [<TestFixture>], extracting the test members from it and annotating them with all
     /// relevant information about how we should run them.
     let parse (parentType : Type) : TestFixture =
+        if
+            parentType.CustomAttributes
+            |> Seq.exists (fun attr -> attr.AttributeType.FullName = "NUnit.Framework.SetUpFixtureAttribute")
+        then
+            failwith "This test runner does not support SetUpFixture. Please shout if you want this."
+
         let categories =
             parentType.CustomAttributes
             |> Seq.filter (fun attr -> attr.AttributeType.FullName = "NUnit.Framework.CategoryAttribute")