@Test
public void hasNext() {

	assertTrue(this.iterator.hasNext());
	this.iterator.next();
	assertTrue(this.iterator.hasNext());
	this.iterator.next();
	assertTrue(this.iterator.hasNext());
	this.iterator.next();
	assertTrue(this.iterator.hasNext());
	this.iterator.next();
	assertTrue(this.iterator.hasNext());
	this.iterator.next();
	assertFalse(this.iterator.hasNext());
}