Predicate<Float> p1 = Predicates.compose(Predicates.compose(h, g), f);
    Predicate<Float> p2 = Predicates.compose(h, Functions.compose(g, f));

    // Might be nice (eventually) to have:
    //     assertEquals(p1, p2);

    // But for now, settle for this:
    assertEquals(p1.hashCode(), p2.hashCode());

    assertEquals(p1.apply(1.0f), p2.apply(1.0f));

    Predicate<@Nullable Integer> p1 = Predicates.isNull();
    Predicate<@Nullable Integer> p2 = isOdd();

    // Make sure that hash codes are not computed per-instance.
    assertEqualHashCode(Predicates.not(p1), Predicates.not(p1));

    assertEqualHashCode(Predicates.and(p1, p2), Predicates.and(p1, p2));

    assertEqualHashCode(Predicates.or(p1, p2), Predicates.or(p1, p2));

    Predicate<Float> p1 = Predicates.compose(Predicates.compose(h, g), f);
    Predicate<Float> p2 = Predicates.compose(h, Functions.compose(g, f));

    // Might be nice (eventually) to have:
    //     assertEquals(p1, p2);

    // But for now, settle for this:
    assertEquals(p1.hashCode(), p2.hashCode());

    assertEquals(p1.apply(1.0f), p2.apply(1.0f));