import com.google.common.collect.MapMakerInternalMap.WeakValueReference;
import com.google.common.testing.NullPointerTester;
import java.lang.ref.Reference;
import java.util.concurrent.atomic.AtomicReferenceArray;
import junit.framework.TestCase;

/** @author Charles Fry */
@SuppressWarnings("deprecation") // many tests of deprecated methods
public class MapMakerInternalMapTest extends TestCase {

import com.google.common.collect.MapMakerInternalMap.WeakValueReference;
import com.google.common.testing.NullPointerTester;
import java.lang.ref.Reference;
import java.util.concurrent.atomic.AtomicReferenceArray;
import junit.framework.TestCase;

/** @author Charles Fry */
@SuppressWarnings("deprecation") // many tests of deprecated methods
public class MapMakerInternalMapTest extends TestCase {

   * AtomicReferenceArray of size 2^k. To map a user key into a stripe, we take a k-bit slice of the
   * user key's (smeared) hashCode(). The stripes are lazily initialized and are weakly referenced.
   */
  @VisibleForTesting
  static class SmallLazyStriped<L> extends PowerOfTwoStriped<L> {
    final AtomicReferenceArray<@Nullable ArrayReference<? extends L>> locks;