@Test
public void testValidationOfEnforcement() {

    final Source source = newSourceBuilder()
            .enforcement(ConnectivityModelFactory.newEnforcement(
                    "{{ header:device_id }}", "{{ thing:id }}", "{{ thing:name }}", "{{ thing:namespace }}"))
            .build();
    UNDER_TEST.validateSource(source, DittoHeaders.empty(), () -> "testSource");
}