@Test
public void testMultiplePut() {

    for (IntervalMap set : getAllInstances()) {
        Object[] defaultValues = getTestValues(set);
        Assert.assertTrue(set.put(new Interval(1.0, 2.0), defaultValues[0]));
        Assert.assertTrue(set.put(new Interval(6.0, 8.0), defaultValues[1]));
        testValues(set, new Interval[] { new Interval(1.0, 2.0), new Interval(6.0, 8.0) }, defaultValues);
    }
}