assertEquals("123", r_refP.render(i2));
assertEquals("123", r_ref.render(i2));
assertEquals("123.0", r_refI.render(i3));
assertEquals("123.0", r_refP.render(i3));
assertEquals("123.0", r_ref.render(i3));
assertEquals("{d '1981-07-10'}", r_refI.render(i4));
assertEquals("{d '1981-07-10'}", r_refP.render(i4));
assertEquals("{d '1981-07-10'}", r_ref.render(i4));
}