assertTrue(isComparable.apply(Integer.class));
    assertTrue(isComparable.apply(Float.class));
  }

  @J2ktIncompatible
  @GwtIncompatible // Predicates.subtypeOf
  public void testSubtypeOf_equality() {
    new EqualsTester()
        .addEqualityGroup(Predicates.subtypeOf(Integer.class))
        .addEqualityGroup(Predicates.subtypeOf(Number.class))
        .addEqualityGroup(Predicates.subtypeOf(Float.class))