assertFalse(entries.contains(mapEntry(k3(), v3())));
    multimap().put(k3(), v3());
    assertContains(entries, mapEntry(k3(), v3()));
  }

  @CollectionSize.Require(absent = ZERO)
  @MapFeature.Require(SUPPORTS_PUT)
  public void testPutPresentKeyPropagatesToEntries() {
    Collection<Entry<K, V>> entries = multimap().entries();
    assertFalse(entries.contains(mapEntry(k0(), v3())));
    multimap().put(k0(), v3());

    }

    @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) {

  @CollectionSize.Require(SEVERAL)
  @MapFeature.Require(SUPPORTS_REMOVE)
  public void testPropagatesRemoveToMultimap() {
    resetContainer(mapEntry(k0(), v0()), mapEntry(k0(), v3()), mapEntry(k0(), v2()));
    Collection<V> result = multimap().asMap().get(k0());
    assertTrue(result.remove(v0()));
    assertFalse(multimap().containsEntry(k0(), v0()));
    assertEquals(2, multimap().size());

    expectMissing(mapEntry(k0(), v0()));
    assertEquals(getNumElements() - 1, multimap().size());
    assertFalse(multimap().containsEntry(k0(), v0()));
  }

  @CollectionSize.Require(absent = ZERO)
  @MapFeature.Require(SUPPORTS_REMOVE)
  public void testRemoveAllPropagatesToMultimap() {
    assertTrue(multimap().entries().removeAll(singleton(mapEntry(k0(), v0()))));

 */

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 static java.util.Arrays.asList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.Multimap;
import com.google.common.collect.testing.AbstractContainerTester;

    } catch (UnsupportedOperationException e) {
      return;
    }

    map.put(null, unmappedValue);
    Entry<@Nullable K, V> entry = mapEntry(null, unmappedValue);
    assertTrue(entrySet.contains(entry));
    Entry<@Nullable K, @Nullable V> nonEntry = mapEntry(null, null);
    assertFalse(entrySet.contains(nonEntry));
  }

  public void testEntrySetContainsEntryNullKeyMissing() {
    Map<K, V> map;

        getSubjectGenerator().create(mapEntry(k0(), v3()), mapEntry(k3(), v3()));
    assertTrue(multimap().putAll(source));
    assertTrue(multimap().containsEntry(k0(), v3()));
    assertTrue(multimap().containsEntry(k3(), v3()));
  }

  @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})
  public void testPutAllWithNullValue() {
    Multimap<K, V> source = getSubjectGenerator().create(mapEntry(k0(), null));

        getSubjectGenerator().create(mapEntry(k0(), v3()), mapEntry(k3(), v3()));
    assertTrue(multimap().putAll(source));
    assertTrue(multimap().containsEntry(k0(), v3()));
    assertTrue(multimap().containsEntry(k3(), v3()));
  }

  @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})
  public void testPutAllWithNullValue() {
    Multimap<K, V> source = getSubjectGenerator().create(mapEntry(k0(), null));

  @CollectionSize.Require(SEVERAL)
  @MapFeature.Require(SUPPORTS_REMOVE)
  public void testPropagatesRemoveToMultimap() {
    resetContainer(mapEntry(k0(), v0()), mapEntry(k0(), v3()), mapEntry(k0(), v2()));
    Collection<V> result = multimap().asMap().get(k0());
    assertTrue(result.remove(v0()));
    assertFalse(multimap().containsEntry(k0(), v0()));
    assertEquals(2, multimap().size());

    assertEquals(getNumElements() - 1, multimap().size());
  }

  @CollectionSize.Require(SEVERAL)
  @MapFeature.Require(SUPPORTS_PUT)
  public void testAsMapEntrySetReflectsPutSameKey() {
    resetContainer(mapEntry(k0(), v0()), mapEntry(k0(), v3()));

    Set<Entry<K, Collection<V>>> asMapEntrySet = multimap().asMap().entrySet();
    Collection<V> valueCollection = getOnlyElement(asMapEntrySet).getValue();