add failing test to check that the task works

Author: majocha

tests/FSharp.Test.Utilities/Tests.fs

@@ -43,3 +43,9 @@ let ``TestConsole captures output`` () =
 
     let results = Seq.init 10 task |> Async.Parallel |> Async.RunSynchronously
     Assert.Equal(expected, results)
+
+
+// Dummy failing test
+[<Fact>]
+let ``Dummy test`` () =
+    Assert.True(false, "This test is a dummy and should fail")