.testEquals();
  }

  public void testWrap_get() {
    String test = "test";
    Wrapper<String> wrapper = LENGTH_EQUIVALENCE.wrap(test);
    assertSame(test, wrapper.get());
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testSerialization() {
    SerializableTester.reserializeAndAssert(LENGTH_EQUIVALENCE.wrap("hello"));