Java Groups.firstOfType Beispiele

Beispiel #1

Datei: GroupsTester.java Projekt: MTU-Vitro/Vitro

  @Test
  public void testFirstOfType() {
    Collection<A> collection = new HashSet<A>();
    collection.add(new B());
    collection.add(new B());

    assertTrue(Groups.firstOfType(C.class, collection) == null);
    assertTrue(collection.contains(Groups.firstOfType(A.class, collection)));
    assertTrue(collection.contains(Groups.firstOfType(B.class, collection)));
  }