@Test
public void testKeySetReturnsUnmodifiableSet() {
try (ServiceTrackerMap<String, TrackedOne> serviceTrackerMap = createServiceTrackerMap()) {
ServiceRegistration<TrackedOne> serviceRegistration1 =
registerService(new TrackedOne(), "aTarget1");
ServiceRegistration<TrackedOne> serviceRegistration2 =
registerService(new TrackedOne(), "aTarget1");
ServiceRegistration<TrackedOne> serviceRegistration3 =
registerService(new TrackedOne(), "aTarget2");
ServiceRegistration<TrackedOne> serviceRegistration4 =
registerService(new TrackedOne(), "aTarget2");
Set<String> keySet = serviceTrackerMap.keySet();
try {
keySet.remove("aTarget1");
Assert.fail();
} catch (UnsupportedOperationException uoe) {
}
serviceRegistration1.unregister();
serviceRegistration2.unregister();
serviceRegistration3.unregister();
serviceRegistration4.unregister();
}
}
@Test
public void testKeySet() {
try (ServiceTrackerMap<String, TrackedOne> serviceTrackerMap = createServiceTrackerMap()) {
ServiceRegistration<TrackedOne> serviceRegistration1 =
registerService(new TrackedOne(), "aTarget1");
ServiceRegistration<TrackedOne> serviceRegistration2 =
registerService(new TrackedOne(), "aTarget1");
ServiceRegistration<TrackedOne> serviceRegistration3 =
registerService(new TrackedOne(), "aTarget2");
ServiceRegistration<TrackedOne> serviceRegistration4 =
registerService(new TrackedOne(), "aTarget2");
Set<String> targets = new HashSet<>();
targets.add("aTarget1");
targets.add("aTarget2");
Assert.assertEquals(targets, serviceTrackerMap.keySet());
serviceRegistration1.unregister();
serviceRegistration2.unregister();
serviceRegistration3.unregister();
serviceRegistration4.unregister();
}
}