@Test
public void testGetElements() {

    TimeStore timestampStore = new TimeStore(null, null, true);
    TimestampIndexStore store = (TimestampIndexStore) timestampStore.nodeIndexStore;
    store.add(1.0);
    store.add(2.0);
    store.add(3.0);
    NodeImpl n0 = new NodeImpl(0);
    NodeImpl n1 = new NodeImpl(1);
    NodeImpl n2 = new NodeImpl(2);
    NodeImpl n3 = new NodeImpl(3);
    store.add(1.0, n0);
    store.add(1.0, n1);
    store.add(2.0, n2);
    store.add(3.0, n3);
    ObjectSet r1 = new ObjectOpenHashSet(getArrayFromIterable(store.mainIndex.get(new Interval(1.0, 1.0))));
    Assert.assertTrue(r1.contains(n0));
    Assert.assertTrue(r1.contains(n1));
    Assert.assertEquals(r1.size(), 2);
    ObjectSet r2 = new ObjectOpenHashSet(getArrayFromIterable(store.mainIndex.get(new Interval(-1, 1.9))));
    Assert.assertTrue(r2.contains(n0));
    Assert.assertTrue(r2.contains(n1));
    Assert.assertEquals(r2.size(), 2);
    ObjectSet r3 = new ObjectOpenHashSet(getArrayFromIterable(store.mainIndex.get(new Interval(-1, 2.0))));
    Assert.assertTrue(r3.contains(n0));
    Assert.assertTrue(r3.contains(n1));
    Assert.assertTrue(r3.contains(n2));
    Assert.assertEquals(r3.size(), 3);
    ObjectSet r4 = new ObjectOpenHashSet(getArrayFromIterable(store.mainIndex.get(new Interval(2.0, 2.0))));
    Assert.assertTrue(r4.contains(n2));
    Assert.assertEquals(r4.size(), 1);
    ObjectSet r5 = new ObjectOpenHashSet(getArrayFromIterable(store.mainIndex.get(new Interval(2.0, 3.5))));
    Assert.assertTrue(r5.contains(n2));
    Assert.assertTrue(r5.contains(n3));
    Assert.assertEquals(r5.size(), 2);
}