@Test
public void testRemoveInterval() {

    GraphStore store = getIntervalGraphStore();
    NodeImpl node = new NodeImpl("0", store);
    node.addInterval(new Interval(1.0, 2.0));
    Assert.assertTrue(node.removeInterval(new Interval(1.0, 2.0)));
    Assert.assertFalse(node.hasInterval(new Interval(1.0, 2.0)));
}