.addEqualityGroup(immutableCell("foo", 1, 'b'))
        .addEqualityGroup(
            Tables.<@Nullable Object, @Nullable Object, @Nullable Object>immutableCell(
                null, null, null))
        .testEquals();
  }

  public void testEntryEqualsNull() {
    Cell<@Nullable String, @Nullable Integer, @Nullable Character> entry =
        immutableCell(null, null, null);

    new EqualsTester()

        .addEqualityGroup(immutableCell("foo", 1, 'b'))
        .addEqualityGroup(
            Tables.<@Nullable Object, @Nullable Object, @Nullable Object>immutableCell(
                null, null, null))
        .testEquals();
  }

  public void testEntryEqualsNull() {
    Cell<@Nullable String, @Nullable Integer, @Nullable Character> entry =
        immutableCell(null, null, null);

    new EqualsTester()

        .addEqualityGroup(HashBasedTable.create(ImmutableTable.of('A', 2, "")))
        .testEquals();
  }

  @GwtIncompatible // ArrayTable
  public void testEqualsObjectNullValues() {
    new EqualsTester()
        .addEqualityGroup(testTable)
        .addEqualityGroup(ArrayTable.create(ImmutableSet.of('A'), ImmutableSet.of(1)))
        .testEquals();
  }

  public void testToString() {

              }
            });
  }

  public void testEquals() {
    List<String> list1 = ImmutableList.of("one");
    List<String> list2 = ImmutableList.of("two");
    new EqualsTester()
        .addEqualityGroup(list1, wrap(list1), wrap(list1))
        .addEqualityGroup(list2, wrap(list2))
        .testEquals();
  }

  private static <T> List<T> wrap(List<T> delegate) {

              }
            });
  }

  public void testEquals() {
    SortedMultiset<String> set1 = ImmutableSortedMultiset.of("one");
    SortedMultiset<String> set2 = ImmutableSortedMultiset.of("two");
    new EqualsTester()
        .addEqualityGroup(set1, wrap(set1), wrap(set1))
        .addEqualityGroup(set2, wrap(set2))
        .testEquals();
  }

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

              }
            });
  }

  public void testEquals() {
    SortedSet<String> set1 = ImmutableSortedSet.of("one");
    SortedSet<String> set2 = ImmutableSortedSet.of("two");
    new EqualsTester()
        .addEqualityGroup(set1, wrap(set1), wrap(set1))
        .addEqualityGroup(set2, wrap(set2))
        .testEquals();
  }

  private static <T> SortedSet<T> wrap(SortedSet<T> delegate) {

              }
            });
  }

  public void testEquals() {
    Set<String> set1 = ImmutableSet.of("one");
    Set<String> set2 = ImmutableSet.of("two");
    new EqualsTester()
        .addEqualityGroup(set1, wrap(set1), wrap(set1))
        .addEqualityGroup(set2, wrap(set2))
        .testEquals();
  }

  private static <T> Set<T> wrap(Set<T> delegate) {

              }
            });
  }

  public void testEquals() {
    Set<String> set1 = ImmutableSet.of("one");
    Set<String> set2 = ImmutableSet.of("two");
    new EqualsTester()
        .addEqualityGroup(set1, wrap(set1), wrap(set1))
        .addEqualityGroup(set2, wrap(set2))
        .testEquals();
  }

  private static <T> Set<T> wrap(Set<T> delegate) {

    List<String> proxy = newDelegatingList(LIST1);
    assertEquals(Proxy.getInvocationHandler(proxy).toString(), proxy.toString());
  }

  interface A {}

  interface B {}

  public void testEquals() {
    new EqualsTester()
        .addEqualityGroup(newDelegatingList(LIST1))
        // Actually, this violates List#equals contract.
        // But whatever, no one is going to proxy List (hopefully).