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题解代码（直接全部复制到test类中即可）

package net.mooctest;import static org.junit.Assert.*;import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;import org.junit.Test;import net.mooctest.AbstractBinarySearchTree.Node;public class AbstractSelfBalancingBinarySearchTreeTest {private Method declaredMethod;@Testpublic void test() {/*ScapegoatTree scapegoatTree0 = new ScapegoatTree();AbstractBinarySearchTree.Node abstractBinarySearchTree_Node0 = scapegoatTree0.createNode((-3252),(AbstractBinarySearchTree.Node) null, (AbstractBinarySearchTree.Node) null,(AbstractBinarySearchTree.Node) null);AbstractBinarySearchTree.Node abstractBinarySearchTree_Node1 = new AbstractBinarySearchTree.Node(abstractBinarySearchTree_Node0.value, abstractBinarySearchTree_Node0, abstractBinarySearchTree_Node0,abstractBinarySearchTree_Node0);AbstractBinarySearchTree.Node abstractBinarySearchTree_Node2 = scapegoatTree0.rotateRight(abstractBinarySearchTree_Node1);scapegoatTree0.rotateLeft(abstractBinarySearchTree_Node1);AbstractBinarySearchTree.Node abstractBinarySearchTree_Node3 = scapegoatTree0.rotateRight(abstractBinarySearchTree_Node2);assertTrue(abstractBinarySearchTree_Node1.isLeaf());assertSame(abstractBinarySearchTree_Node0, abstractBinarySearchTree_Node3);*/}@Testpublic void testNode() {ScapegoatTree scapegoatTree0 = new ScapegoatTree();AbstractBinarySearchTree.Node Node0 = new AbstractBinarySearchTree.Node(1,null,null,null);AbstractBinarySearchTree.Node Node1 = new AbstractBinarySearchTree.Node(null,null,Node0,Node0);assertTrue(Node0.isLeaf());assertTrue(Node0.isLeaf());assertNotEquals(Node0.hashCode(),31);assertEquals(Node1.hashCode(),31);}@Testpublic void testequals() {AbstractBinarySearchTree.Node Node0 = new AbstractBinarySearchTree.Node(1,null,null,null);AbstractBinarySearchTree.Node Node1 = new AbstractBinarySearchTree.Node(null,null,Node0,Node0);AbstractBinarySearchTree.Node Node3 = new AbstractBinarySearchTree.Node(null,null,Node0,Node0);AbstractBinarySearchTree.Node Node2 = new AbstractBinarySearchTree.Node(2,null,null,null);AbstractBinarySearchTree.Node Node4 = new AbstractBinarySearchTree.Node(2,null,null,null);assertTrue(Node1.equals(Node1));assertFalse(Node1.equals(null));assertFalse(Node1.equals("z1"));assertFalse(Node1.equals(Node0));assertTrue(Node1.equals(Node3));assertTrue(Node2.equals(Node4));assertFalse(Node0.equals(Node1));assertFalse(Node0.equals(Node2));}@Testpublic void testsubtree() {ScapegoatTree st1= new ScapegoatTree();AbstractBinarySearchTree.Node Node00 = new AbstractBinarySearchTree.Node(null,null,null,null);AbstractBinarySearchTree.Node Node0 = new AbstractBinarySearchTree.Node(1,null,null,null);AbstractBinarySearchTree.Node Node1 = new AbstractBinarySearchTree.Node(1,null,Node0,Node0);//Node2节点只有右子树AbstractBinarySearchTree.Node Node2 = new AbstractBinarySearchTree.Node(1,null,null,Node0);//Node3节点只有左子树AbstractBinarySearchTree.Node Node3 = new AbstractBinarySearchTree.Node(1,null,Node0,null);//Node4节点有左子树和右子树但值为nullAbstractBinarySearchTree.Node Node4 = new AbstractBinarySearchTree.Node(null,null,Node0,Node0);//Node5节点有左子树和右子树但值为null且左右子树节点为nullAbstractBinarySearchTree.Node Node5 = new AbstractBinarySearchTree.Node(null,null,Node00,Node00);//Node6节点有左子树和右子树但值为null且左右子树节点为null,右子树节点有右子树与左子树AbstractBinarySearchTree.Node Node6 = new AbstractBinarySearchTree.Node(null,null,Node4,Node4);st1.printSubtree(Node1);st1.printSubtree(Node2);st1.printSubtree(Node3);st1.printSubtree(Node4);st1.printSubtree(Node5);st1.printSubtree(Node6);}@Testpublic void testisLeaf() {ScapegoatTree st1= new ScapegoatTree();AbstractBinarySearchTree.Node Node00 = new AbstractBinarySearchTree.Node(null,null,null,null);AbstractBinarySearchTree.Node Node0 = new AbstractBinarySearchTree.Node(1,null,null,null);AbstractBinarySearchTree.Node Node1 = new AbstractBinarySearchTree.Node(1,null,Node0,Node0);AbstractBinarySearchTree.Node Node2 = new AbstractBinarySearchTree.Node(1,null,Node0,null);AbstractBinarySearchTree.Node Node3 = new AbstractBinarySearchTree.Node(1,null,null,Node0);assertFalse(Node1.isLeaf());assertTrue(Node00.isLeaf());assertFalse(Node2.isLeaf());assertFalse(Node3.isLeaf());}@Testpublic void testgetmaxinum() {ScapegoatTree st1= new ScapegoatTree();AbstractBinarySearchTree.Node Node00 = new AbstractBinarySearchTree.Node(null,null,null,null);AbstractBinarySearchTree.Node Node0 = new AbstractBinarySearchTree.Node(1,null,null,null);AbstractBinarySearchTree.Node Node1 = new AbstractBinarySearchTree.Node(1,null,Node0,Node0);AbstractBinarySearchTree.Node Node2 = new AbstractBinarySearchTree.Node(1,null,Node0,null);AbstractBinarySearchTree.Node Node3 = new AbstractBinarySearchTree.Node(1,null,null,Node0);assertEquals(Node0,st1.getMaximum(Node1));assertEquals(Node0,st1.getMinimum(Node1));}@Testpublic void testSuccessor() {ScapegoatTree st1= new ScapegoatTree();AbstractBinarySearchTree.Node Node00 = new AbstractBinarySearchTree.Node(null,null,null,null);AbstractBinarySearchTree.Node Node0 = new AbstractBinarySearchTree.Node(1,null,null,null);AbstractBinarySearchTree.Node Node1 = new AbstractBinarySearchTree.Node(1,null,Node0,Node0);AbstractBinarySearchTree.Node Node2 = new AbstractBinarySearchTree.Node(1,null,Node0,null);AbstractBinarySearchTree.Node Node3 = new AbstractBinarySearchTree.Node(1,null,null,Node0);assertEquals(Node0,st1.getSuccessor(Node1));}@Testpublic void testSuccessor2() {ScapegoatTree st1= new ScapegoatTree();AbstractBinarySearchTree.Node Node00 = new AbstractBinarySearchTree.Node(null,null,null,null);