@Test
public void testAddService() {
ServiceHolder tested = new ServiceHolder();
Object service = new Object();
tested.addService(service);
Set<String> services = getField(tested, "services");
assertEquals("Size of the \"services\" Set should be 1", 1, services.size());
assertSame(
"The services Set should didn't contain the expect service",
service,
services.iterator().next());
}
