public void setUp() {
setUpBasicTree(simpleTree);
setUpBasicTree(similarSimpleTree);
nonSimilarSimpleTree1.setTreeRoot(0);
nonSimilarSimpleTree1.addEdge(new SimpleEdge(1, 0));
nonSimilarSimpleTree1.addEdge(new SimpleEdge(2, 1));
nonSimilarSimpleTree2.setTreeRoot(0);
nonSimilarSimpleTree2.addVertex(2);
nonSimilarSimpleTree2.addEdge(new SimpleEdge(2, 0));
nonSimilarSimpleTree2.addVertex(3);
nonSimilarSimpleTree2.addEdge(new SimpleEdge(3, 0));
}