@Test
public void testClear() {

    this.list.add( this.node1 );
    this.list.add( this.node2 );
    this.list.add( this.node3 );
    assertEquals( "List size should be 3",
                         this.list.size(),
                         3 );
    this.list.clear();
    assertEquals( "Empty list should have size 0",
                         this.list.size(),
                         0 );
}