mapEntry("one", 1),
            mapEntry("two", 2),
            mapEntry("three", 3),
            mapEntry("two", 2));
  }

  // Other tests

  public void testNullGet() {
    ImmutableSortedMap<String, Integer> map = ImmutableSortedMap.of("one", 1);
    assertThat(map.get(null)).isNull();
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester