protected override void CreateIdenticalScenarioAttributes(out ScenarioAttribute a, out ScenarioAttribute b)
        {
            var g = new Guid("6A94DF01-FA7B-4ADD-9552-F886C07859F5");

            a = new TestableScenarioAttribute(g);
            b = new TestableScenarioAttribute(g);
        }
 protected override void CreateDifferentScenarioAttributes(out ScenarioAttribute a, out ScenarioAttribute b)
 {
     a = new TestableScenarioAttribute(new Guid("37358A11-3CE3-47B6-8FB2-ECF51B161FC5"));
     b = new TestableScenarioAttribute(new Guid("035B35D8-6A5F-4418-AA3F-7B0377248ADC"));
 }