Hibernate/hibernate-orm
1
0
Fork 0
mirror of https://github.com/hibernate/hibernate-orm synced 2025-02-17 00:24:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

HHH-13831 Add tests for multiple listeners

Browse Source 
We want to test what happens when we apply a replacement strategy
  that doesn't match all listeners.
This commit is contained in:
Davide D'Alto 2020-01-30 11:40:09 +00:00 committed by Steve Ebersole
parent 695e3a084e
commit 6670d03493
1 changed files with 81 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

82
hibernate-core/src/test/java/org/hibernate/event/service/internal/EventListenerReplacementStrategyTest.java
View File

@ -73,6 +73,69 @@ public void testFireEventOnEachListener() {
assertThat( tracker.callers ).containsExactly( ExpectedListener.class ); assertThat( tracker.callers ).containsExactly( ExpectedListener.class );
} }
@Test
public void testListenersIteratorWithMultipleListenersAndNoStrategy() {
listenerGroup.appendListener( new OriginalListener( tracker ) );
listenerGroup.appendListener( new ExpectedListener( tracker ) );
listenerGroup.appendListener( new ExtraListener( tracker ) );
listenerGroup.listeners().forEach( listener -> listener.onClear( event ) );
assertThat( tracker.callers ).containsExactly( OriginalListener.class, ExpectedListener.class, ExtraListener.class );
}
@Test
public void testFireLazyEventOnEachListenerWithMultipleListenersAndNoStrategy() {
listenerGroup.appendListener( new OriginalListener( tracker ) );
listenerGroup.appendListener( new ExpectedListener( tracker ) );
listenerGroup.appendListener( new ExtraListener( tracker ) );
listenerGroup.fireLazyEventOnEachListener( () -> event, ClearEventListener::onClear );
assertThat( tracker.callers ).containsExactly( OriginalListener.class, ExpectedListener.class, ExtraListener.class );
}
@Test
public void testFireEventOnEachListenerWithMultipleListenersAndNoStrategy() {
listenerGroup.appendListener( new OriginalListener( tracker ) );
listenerGroup.appendListener( new ExpectedListener( tracker ) );
listenerGroup.appendListener( new ExtraListener( tracker ) );
listenerGroup.fireEventOnEachListener( event, ClearEventListener::onClear );
assertThat( tracker.callers ).containsExactly( OriginalListener.class, ExpectedListener.class, ExtraListener.class );
}
@Test
public void testListenersIteratorWithMultipleListenersAndReplacementStrategy() {
listenerGroup.addDuplicationStrategy( ReplaceOriginalStrategy.INSTANCE );
listenerGroup.appendListener( new OriginalListener( tracker ) );
listenerGroup.appendListener( new ExpectedListener( tracker ) );
listenerGroup.appendListener( new ExtraListener( tracker ) );
listenerGroup.listeners().forEach( listener -> listener.onClear( event ) );
assertThat( tracker.callers ).containsExactly( ExpectedListener.class, ExtraListener.class );
}
@Test
public void testFireLazyEventOnEachListenerWithMultipleListenersAndReplacementStrategy() {
listenerGroup.addDuplicationStrategy( ReplaceOriginalStrategy.INSTANCE );
listenerGroup.appendListener( new OriginalListener( tracker ) );
listenerGroup.appendListener( new ExpectedListener( tracker ) );
listenerGroup.appendListener( new ExtraListener( tracker ) );
listenerGroup.fireLazyEventOnEachListener( () -> event, ClearEventListener::onClear );
assertThat( tracker.callers ).containsExactly( ExpectedListener.class, ExtraListener.class );
}
@Test
public void testFireEventOnEachListenerWithMultipleListenersAndReplacementStrategy() {
listenerGroup.addDuplicationStrategy( ReplaceOriginalStrategy.INSTANCE );
listenerGroup.appendListener( new OriginalListener( tracker ) );
listenerGroup.appendListener( new ExpectedListener( tracker ) );
listenerGroup.appendListener( new ExtraListener( tracker ) );
listenerGroup.fireEventOnEachListener( event, ClearEventListener::onClear );
assertThat( tracker.callers ).containsExactly( ExpectedListener.class, ExtraListener.class );
}
/** /**
* Keep track of which listener is called and how many listeners are called. * Keep track of which listener is called and how many listeners are called.
*/ */
@ -121,13 +184,30 @@ public void onClear(ClearEvent event) {
} }
} }
/**
* An additional listener to test the case of multiple listeners registered for the same event
*/
private static class ExtraListener implements ClearEventListener {
private final Tracker tracker;
public ExtraListener(Tracker tracker) {
this.tracker = tracker;
}
@Override
public void onClear(ClearEvent event) {
tracker.calledBy( this.getClass() );
}
}
private static class ReplaceOriginalStrategy implements DuplicationStrategy { private static class ReplaceOriginalStrategy implements DuplicationStrategy {
static final ReplaceOriginalStrategy INSTANCE = new ReplaceOriginalStrategy(); static final ReplaceOriginalStrategy INSTANCE = new ReplaceOriginalStrategy();
@Override @Override
public boolean areMatch(Object listener, Object original) { public boolean areMatch(Object listener, Object original) {
return original instanceof ClearEventListener && listener instanceof ClearEventListener; // We just want to replace the original listener with the extra so that we can test with multiple listeners
return original instanceof OriginalListener && listener instanceof ExpectedListener;
} }
@Override @Override