@Test
 public void testContains2() {
   sTree = new SkillTree(0);
   sTree.addEntry(entry);
   assertThat(sTree.contains(JutsuParams.MEISAIGAKURE.getJutsuID())).isTrue();
 }
 @Test
 public void testContains1() {
   sTree = new SkillTree(0);
   sTree.addEntry(entry);
   assertThat(sTree.contains(entry)).isTrue();
 }