@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class MultimapKeysTester<K, V> extends AbstractMultimapTester<K, V, Multimap<K, V>> {
  @CollectionSize.Require(SEVERAL)
  public void testKeys() {
    resetContainer(mapEntry(k0(), v0()), mapEntry(k0(), v1()), mapEntry(k1(), v0()));
    Multiset<K> keys = multimap().keys();
    assertEquals(2, keys.count(k0()));
    assertEquals(1, keys.count(k1()));
    assertEquals(3, keys.size());

    ListMultimap<K, V> multimap1 =
        getSubjectGenerator()
            .create(mapEntry(k0(), v0()), mapEntry(k0(), v1()), mapEntry(k0(), v0()));
    ListMultimap<K, V> multimap2 =
        getSubjectGenerator()
            .create(mapEntry(k0(), v1()), mapEntry(k0(), v0()), mapEntry(k0(), v0()));
    new EqualsTester().addEqualityGroup(multimap1).addEqualityGroup(multimap2).testEquals();
  }

    @Override
    public SampleElements<Entry<String, Integer>> samples() {
      return new SampleElements<>(
          mapEntry("foo", 5),
          mapEntry("bar", 3),
          mapEntry("baz", 17),
          mapEntry("quux", 1),
          mapEntry("toaster", -2));
    }

    @SuppressWarnings("unchecked")
    @Override
    public Entry<String, Integer>[] createArray(int length) {

  @MapFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(SEVERAL)
  public void testMultimapRemoveDeletesFirstOccurrence() {
    resetContainer(mapEntry(k0(), v0()), mapEntry(k0(), v1()), mapEntry(k0(), v0()));

    List<V> list = multimap().get(k0());
    multimap().remove(k0(), v0());
    assertContentsInOrder(list, v1(), v0());
  }

  @MapFeature.Require(SUPPORTS_REMOVE)

  @Override
  public SampleElements<Entry<String, String>> samples() {
    return new SampleElements<>(
        mapEntry("one", "January"),
        mapEntry("two", "February"),
        mapEntry("three", "March"),
        mapEntry("four", "April"),
        mapEntry("five", "May"));
  }

  @Override
  public Map<String, String> create(Object... entries) {
    @SuppressWarnings("unchecked")

  }

  @CollectionSize.Require(SEVERAL)
  public void testEntrySetEquals() {
    resetContainer(mapEntry(k0(), v0()), mapEntry(k1(), v0()), mapEntry(k0(), v3()));
    Set<Entry<K, Collection<V>>> expected = newHashSet();
    expected.add(mapEntry(k0(), (Collection<V>) newHashSet(v0(), v3())));
    expected.add(mapEntry(k1(), (Collection<V>) newHashSet(v0())));

    }

    @Override
    public SampleElements<Entry<String, String>> samples() {
      return new SampleElements<>(
          mapEntry("one", "january"),
          mapEntry("two", "february"),
          mapEntry("three", "march"),
          mapEntry("four", "april"),
          mapEntry("five", "may"));
    }

    @Override
    public M create(Object... elements) {

 * limitations under the License.
 */

package com.google.common.collect.testing.google;

import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.collect.testing.Helpers.mapEntry;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.BiMap;
import com.google.common.collect.testing.DerivedGenerator;
import com.google.common.collect.testing.OneSizeTestContainerGenerator;

      return new SampleElements<>(
          mapEntry(sampleKeys.e0(), createCollection(sampleValues.e0())),
          mapEntry(sampleKeys.e1(), createCollection(sampleValues.e1())),
          mapEntry(sampleKeys.e2(), createCollection(sampleValues.e2())),
          mapEntry(sampleKeys.e3(), createCollection(sampleValues.e3())),
          mapEntry(sampleKeys.e4(), createCollection(sampleValues.e4())));
    }

 */

package com.google.common.collect.testing.google;

import static com.google.common.collect.testing.Helpers.assertEqualIgnoringOrder;
import static com.google.common.collect.testing.Helpers.mapEntry;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.BiMap;
import com.google.common.collect.testing.AbstractMapTester;
import java.util.ArrayList;
import java.util.Collection;