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package com.jsoniter;

import com.jsoniter.spi.TypeLiteral;

import junit.framework.TestCase;

import java.io.IOException;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.LinkedList;

import java.util.List;

public class TestExisting extends TestCase {

static {

// JsonIterator.setMode(DecodingMode.REFLECTION_MODE);

}

public static class TestObj1 {

public String field1;

public String field2;

}

public void test_direct_reuse() throws IOException {

TestObj1 testObj = new TestObj1();

testObj.field2 = "world";

JsonIterator iter = JsonIterator.parse("{ 'field1' : 'hello' }".replace('\'', '"'));

TestObj1 oldObj = testObj;

testObj = iter.read(testObj);

assertEquals("hello", testObj.field1);

assertEquals(System.identityHashCode(oldObj), System.identityHashCode(testObj));

}

public static class TestObj2 {

public String field3;

public TestObj1 field4;

}

public void test_indirect_reuse() throws IOException {

TestObj2 testObj = new TestObj2();

testObj.field4 = new TestObj1();

testObj.field4.field1 = "world";

JsonIterator iter = JsonIterator.parse("{ 'field3' : 'hello', 'field4': {'field2': 'hello'} }".replace('\'', '"'));

TestObj2 oldObj = testObj;

testObj = iter.read(testObj);

assertEquals("hello", testObj.field3);

assertEquals("hello", testObj.field4.field2);

assertEquals(System.identityHashCode(oldObj), System.identityHashCode(testObj));

}

public void test_reuse_list() throws IOException {

List list1 = new ArrayList();

JsonIterator iter = JsonIterator.parse("[1]");

List list2= iter.read(new TypeLiteral<List<Integer>>(){}, list1);

assertEquals(System.identityHashCode(list2), System.identityHashCode(list1));

}

public void test_reuse_linked_list() throws IOException {

LinkedList list1 = new LinkedList();

JsonIterator iter = JsonIterator.parse("[1]");

List list2= iter.read(new TypeLiteral<LinkedList<Integer>>(){}, list1);

assertEquals(System.identityHashCode(list2), System.identityHashCode(list1));

}

public void test_reuse_map() throws IOException {

JsonIterator iter = JsonIterator.parse("{ 'field1' : 'hello' }".replace('\'', '"'));

HashMap<String, Object> map1 = new HashMap<String, Object>();

map1.put("a", "b");

HashMap<String, Object> map2 = iter.read(map1);

assertEquals("b", map2.get("a"));

}

}