.addEqualityGroup(Predicates.not(TRUE))
        .addEqualityGroup(isOdd())
        .testEquals();
  }

  public void testNot_equalityForNotOfKnownValues() {
    new EqualsTester()
        .addEqualityGroup(TRUE, Predicates.alwaysTrue())
        .addEqualityGroup(FALSE)
        .addEqualityGroup(Predicates.not(TRUE))
        .testEquals();

    new EqualsTester()
        .addEqualityGroup(FALSE, Predicates.alwaysFalse())

        .addEquivalenceGroup("a")
        .test();
  }

  public void testEquals() {
    new EqualsTester()
        .addEqualityGroup(Equivalence.equals(), Equivalence.equals())
        .addEqualityGroup(Equivalence.identity(), Equivalence.identity())
        .testEquals();
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester

        .addEqualityGroup(g)
        .testEquals();

    new EqualsTester()
        .addEqualityGroup(g, Functions.<@Nullable Object>constant(null))
        .addEqualityGroup(Functions.constant("incorrect"))
        .addEqualityGroup(Functions.toStringFunction())
        .addEqualityGroup(f)
        .testEquals();
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester

    new EqualsTester().addEqualityGroup(jvmType, ourType).testEquals();
  }

  public void testNewArrayType_primitive() {
    Type jvmType = new TypeCapture<int[]>() {}.capture();
    Type ourType = Types.newArrayType(int.class);
    assertThat(ourType.toString()).isEqualTo(jvmType.toString());
    new EqualsTester().addEqualityGroup(jvmType, ourType).testEquals();
  }

  public void testNewArrayType_upperBoundedWildcard() {

  // create(Enum1.class) is equal to create(Enum2.class) but testEquals() expects otherwise.
  // For the same reason, we need to skip create(Iterable, Class).
  private static class EnumMultisetFactory {
    @Keep // used reflectively by testEquals
    public static <E extends Enum<E>> EnumMultiset<E> create(Iterable<E> elements) {
      return EnumMultiset.create(elements);

              }
            });
  }

  public void testEquals() {
    Multimap<Integer, String> map1 = ImmutableMultimap.of(1, "one");
    Multimap<Integer, String> map2 = ImmutableMultimap.of(2, "two");
    new EqualsTester()
        .addEqualityGroup(map1, wrap(map1), wrap(map1))
        .addEqualityGroup(map2, wrap(map2))
        .testEquals();
  }

              }
            });
  }

  public void testEquals() {
    Table<Integer, Integer, String> table1 = ImmutableTable.of(1, 1, "one");
    Table<Integer, Integer, String> table2 = ImmutableTable.of(2, 2, "two");
    new EqualsTester()
        .addEqualityGroup(table1, wrap(table1), wrap(table1))
        .addEqualityGroup(table2, wrap(table2))
        .testEquals();
  }

    }
  }

  @CollectionSize.Require(SEVERAL)
  public void testEquals() {
    resetContainer(mapEntry(k0(), v0()), mapEntry(k1(), v0()), mapEntry(k0(), v3()));
    Map<K, Collection<V>> expected = new HashMap<>();
    expected.put(k0(), newHashSet(v0(), v3()));
    expected.put(k1(), newHashSet(v0()));
    new EqualsTester().addEqualityGroup(expected, multimap().asMap()).testEquals();
  }

  @CollectionSize.Require(SEVERAL)

        .addEqualityGroup(g)
        .testEquals();

    new EqualsTester()
        .addEqualityGroup(g, Functions.<@Nullable Object>constant(null))
        .addEqualityGroup(Functions.constant("incorrect"))
        .addEqualityGroup(Functions.toStringFunction())
        .addEqualityGroup(f)
        .testEquals();
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester

import org.jspecify.annotations.Nullable;

/**
 * Tester for equals() and hashCode() methods of a class.
 *
 * <p>The simplest use case is:
 *
 * <pre>
 * new EqualsTester().addEqualityGroup(foo).testEquals();
 * </pre>
 *
 * <p>This tests {@code foo.equals(foo)}, {@code foo.equals(null)}, and a few other operations.
 *
 * <p>For more extensive testing, add multiple equality groups. Each group should contain objects