private void check(
CollectionHolder holder, CollectionHolder original1, CollectionHolder original2) {
Assert.isTrue(holder != original1);
Assert.isTrue(holder != original2);
if (holder.name().equals("h1")) checkH1(holder);
else checkH2(holder);
}
private void checkH2(CollectionHolder holder) {
Assert.areEqual("h1", ((CollectionHolder) holder.map().get("key")).name());
Assert.areEqual("h1", ((CollectionHolder) holder.map().get(holder)).name());
Assert.areEqual("two", holder.list().get(0));
Assert.areEqual("h1", ((CollectionHolder) holder.list().get(1)).name());
Assert.areEqual(holder, holder.list().get(2));
Assert.isTrue(holder.set().remove("two"));
Assert.isTrue(holder.set().remove(holder));
CollectionHolder remaining = nextCollectionHolder(holder.set().iterator());
Assert.areEqual("h1", remaining.name());
}