assertTrue(e.nextNode());
assertEquals(node(1,0), e.node());
assertFalse(e.nextNode());
assertEquals(DocsAndNodesIterator.NO_MORE_NOD, e.node());
assertTrue(e.nextDocument());
assertEquals(2, e.doc());
assertEquals(1, e.nodeFreqInDoc());
assertTrue(e.nextNode());
assertEquals(node(5,3,6,3), e.node());
assertFalse(e.nextNode());