Container { public Iterable<V> getValues() { return this.valueByKey.values(); } Container(final Logger logger); void setMode(final Mode mode); boolean add(final K key, final V value); void debug(); void freeze(); V get(final K key); Map<K, V> getValueByKey(); Iterable<V> getValues();  }
@Test public final void testEmpty() { Assert.assertFalse(this.container.getValues().iterator().hasNext()); }