@Test
    public void testFindSolution_normal_oneDiff() throws Exception {
        Node initNode = new TinyGameNode(0, 0, 0);
        Node targetNode = new TinyGameNode(1, 0, 0);

        Solution solution = new BreadthFirstSolutionFinder().findSolution(initNode, targetNode);

        assertThat(solution.getPath().toString(),
                is("[{left=1, right=0}, {left=0, right=0}]"));
    }