// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class CollectionRetainAllTester<E> extends AbstractCollectionTester<E> {

  /** A collection of elements to retain, along with a description for use in failure messages. */
  private final class Target {
    private final Collection<E> toRetain;

import com.google.common.collect.testing.testers.CollectionRemoveAllTester;
import com.google.common.collect.testing.testers.CollectionRemoveTester;
import com.google.common.collect.testing.testers.CollectionRetainAllTester;
import com.google.common.collect.testing.testers.CollectionSerializationTester;
import com.google.common.collect.testing.testers.CollectionSizeTester;