@CollectionFeature.Require(absent = KNOWN_ORDER)
  public void testForEachUnknownOrder() {
    List<E> elements = new ArrayList<>();
    collection.forEach(elements::add);
    Helpers.assertEqualIgnoringOrder(asList(createSamplesArray()), elements);
  }

  @CollectionFeature.Require(KNOWN_ORDER)
  public void testForEachKnownOrder() {
    List<E> elements = new ArrayList<>();
    collection.forEach(elements::add);

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect.testing;

import static com.google.common.collect.testing.Helpers.assertEqualIgnoringOrder;
import static com.google.common.collect.testing.Helpers.copyToList;
import static java.util.Arrays.asList;
import static java.util.Collections.unmodifiableList;

import com.google.common.annotations.GwtCompatible;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect.testing;

import static com.google.common.collect.testing.Helpers.assertEqualIgnoringOrder;
import static com.google.common.collect.testing.Helpers.copyToList;
import static java.util.Arrays.asList;
import static java.util.Collections.unmodifiableList;

import com.google.common.annotations.GwtCompatible;

              + actual);
    }
  }

  public static void assertContentsInOrder(Iterable<?> actual, Object... expected) {
    assertEqualInOrder(asList(expected), actual);
  }

  public static void assertEqualIgnoringOrder(Iterable<?> expected, Iterable<?> actual) {
    List<?> exp = copyToList(expected);
    List<?> act = copyToList(actual);
    String actString = act.toString();

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect.testing;

import static com.google.common.collect.testing.Helpers.assertEqualIgnoringOrder;
import static com.google.common.collect.testing.Helpers.copyToList;
import static com.google.common.collect.testing.Helpers.copyToSet;
import static java.lang.System.arraycopy;
import static java.util.Arrays.asList;