protected override void Act()
            {
                // Execute code under test
                var transformer = new ConcreteEducationOrganizationIdAuthorizationContextDataTransformer<RelationshipsAuthorizationContextData>(
                    Given_a_cache_that_returns_all_identifiers_as_type("SomethingUnhandled"));

                _actualContextData = transformer.GetConcreteAuthorizationContextData(
                    Given_context_data_for_EducationOrganizationId_of_999());
            }
            protected override void Act()
            {
                // Execute code under test
                var transformer = new ConcreteEducationOrganizationIdAuthorizationContextDataTransformer<RelationshipsAuthorizationContextData>(
                    _educationOrganizationCache = Given_a_cache_that_returns_no_identifiers());

                _suppliedContextData = new RelationshipsAuthorizationContextData();

                _actualContextData = transformer.GetConcreteAuthorizationContextData(_suppliedContextData);
            }