### Question:
EventUserFilter implements NotificationFilter { @Override public String getName() { return FILTER_NAME; }  @Override FilterPolicy filterEvent(Event event, DocumentReference user,
            Collection<NotificationFilterPreference> filterPreferences, NotificationFormat format); @Override boolean matchesPreference(NotificationPreference preference); @Override ExpressionNode filterExpression(DocumentReference user,
            Collection<NotificationFilterPreference> filterPreferences, NotificationPreference preference); @Override ExpressionNode filterExpression(DocumentReference user,
            Collection<NotificationFilterPreference> filterPreferences,
            NotificationFilterType type, NotificationFormat format); @Override String getName(); @Override int getPriority(); static final String FILTER_NAME; }### Answer:
@Test public void getName() throws Exception { assertEquals("eventUserNotificationFilter", mocker.getComponentUnderTest().getName()); }