MapChangeListenerRegistrationImplTest.java 文件源码

@Before public void initialiseSystemUnderTest(){
   addedResultsList = new ArrayList<>();
   removedResultsList = new ArrayList<>();
   observableMap = FXCollections.observableHashMap();

   systemUnderTest = new MapChangeListenerRegistrationImpl<>(
            observableMap, 
            ( MapChangeListener.Change< ? extends String, ? extends Object > change ) -> {
               if ( !observableMap.containsKey( change.getKey() ) ) {
                  removedResultsList.add( new Pair<>( change.getKey(), change.getValueRemoved() ) );
               } else {
                  addedResultsList.add( new Pair<>( change.getKey(), change.getValueAdded() ) );
               }
            }
   );
}