assertSame(pl, pl.setParameter("xPeriod", 2));
assertSame(pl, pl.setParameter("yPeriod", 2));
assertEquals(2, pl.getIntParameter("xPeriod"));
assertEquals(2, pl.getIntParameter("yPeriod"));
assertEquals("Setting 'xPeriod' on ParameterList should have no effect on ParameterValue.",
2.3, p.doubleValue(), 1E-6);
assertEquals("'yPeriod' should still backed by the ParameterList.",
2, rip.parameter("yPeriod").intValue());
}
}