/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.harmony.luni.tests.java.io;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.NotActiveException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.ObjectStreamClass;
import java.io.ObjectStreamField;
import java.io.OutputStream;
import java.io.Serializable;
import java.io.StreamCorruptedException;
import java.util.Date;
public class ObjectStreamFieldTest extends junit.framework.TestCase {
static class DummyClass implements Serializable {
private static final long serialVersionUID = 999999999999998L;
long bam = 999L;
int ham = 9999;
int sam = 8888;
Object hola = new Object();
public static long getUID() {
return serialVersionUID;
}
}
ObjectStreamClass osc;
ObjectStreamField hamField;
ObjectStreamField samField;
ObjectStreamField bamField;
ObjectStreamField holaField;
/**
* @tests java.io.ObjectStreamField#ObjectStreamField(java.lang.String,
* java.lang.Class)
*/
public void test_ConstructorLjava_lang_StringLjava_lang_Class() {
assertTrue("Used to test", true);
}
public void test_equalsLjava_lang_Object() {
// Regression test for HARMONY-4273
assertTrue(samField.equals(samField));
assertFalse(samField.equals(hamField));
assertFalse(samField.equals("fish"));
assertFalse(samField.equals(null));
}
/**
* @tests java.io.ObjectStreamField#compareTo(java.lang.Object)
*/
public void test_compareToLjava_lang_Object() {
assertTrue("Object compared to int did not return > 0", holaField
.compareTo(hamField) > 0);
assertEquals("Int compared to itself did not return 0", 0, hamField
.compareTo(hamField));
assertTrue("(Int)ham compared to (Int)sam did not return < 0", hamField
.compareTo(samField) < 0);
}
/**
* @tests java.io.ObjectStreamField#getName()
*/
public void test_getName() {
assertEquals("Field did not return correct name", "hola", holaField
.getName());
}
/**
* @tests java.io.ObjectStreamField#getOffset()
*/
public void test_getOffset() {
ObjectStreamField[] osfArray;
osfArray = osc.getFields();
assertTrue("getOffset did not return reasonable values", osfArray[0]
.getOffset() != osfArray[1].getOffset());
assertEquals("getOffset for osfArray[0].getOffset() did not return 0",
0, osfArray[0].getOffset());
assertEquals("osfArray[1].getOffset() did not return 8", 8, osfArray[1]
.getOffset());
assertEquals("osfArray[2].getOffset() did not return 12", 12,
osfArray[2].getOffset());
}
/**
* @tests java.io.ObjectStreamField#getType()
*/
public void test_getType() {
assertTrue("getType on an Object field did not answer Object",
holaField.getType().equals(Object.class));
}
/**
* @tests java.io.ObjectStreamField#getTypeCode()
*/
public void test_getTypeCode() {
assertEquals("getTypeCode on an Object field did not answer 'L'", 'L',
holaField.getTypeCode());
assertEquals("getTypeCode on a long field did not answer 'J'", 'J',
bamField.getTypeCode());
}
/**
* @tests java.io.ObjectStreamField#getTypeString()
*/
public void test_getTypeString() {
assertTrue("getTypeString returned: " + holaField.getTypeString(),
holaField.getTypeString().indexOf("Object") >= 0);
assertNull("Primitive types' strings should be null", hamField
.getTypeString());
ObjectStreamField osf = new ObjectStreamField("s", String.class, true);
assertTrue(osf.getTypeString() == "Ljava/lang/String;");
}
/**
* @tests java.io.ObjectStreamField#toString()
*/
public void test_toString() {
assertTrue("toString on a long returned: " + bamField.toString(),
bamField.toString().indexOf("bam") >= 0);
}
/**
* @tests java.io.ObjectStreamField#getType()
*/
public void test_getType_Deserialized() throws IOException,
ClassNotFoundException {
ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(new SerializableObject());
oos.close();
baos.close();
byte[] bytes = baos.toByteArray();
ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
ObjectInputStream ois = new ObjectInputStream(bais);
SerializableObject obj = (SerializableObject) ois.readObject();
ObjectStreamClass oc = obj.getObjectStreamClass();
ObjectStreamField field = oc.getField("i");
assertEquals(Object.class, field.getType());
}
/**
* @tests java.io.ObjectStreamField#getType()
*/
public void test_getType_MockObjectInputStream() throws IOException,
ClassNotFoundException {
ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(new SerializableObject());
oos.close();
baos.close();
byte[] bytes = baos.toByteArray();
ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
MockObjectInputStream ois = new MockObjectInputStream(bais);
ois.readObject();
ObjectStreamClass oc = ois.getObjectStreamClass();
ObjectStreamField field = oc.getField("i");
assertEquals(Object.class, field.getType());
}
public void test_isUnshared() throws Exception {
SerializableObject2 obj = new SerializableObject2();
ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(obj);
oos.close();
baos.close();
byte[] bytes = baos.toByteArray();
ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
ObjectInputStream ois = new ObjectInputStream(bais);
SerializableObject2 newObj = (SerializableObject2) ois.readObject();
ObjectInputStream.GetField getField = newObj.getGetField();
ObjectStreamClass objectStreamClass = getField.getObjectStreamClass();
assertTrue(objectStreamClass.getField("i").isUnshared());
assertFalse(objectStreamClass.getField("d").isUnshared());
assertTrue(objectStreamClass.getField("s").isUnshared());
assertEquals(1000, getField.get("i", null));
assertEquals(SerializableObject2.today, getField.get("d", null));
assertEquals("Richard", getField.get("s", null));
assertTrue(objectStreamClass.getField("s").getTypeString() == "Ljava/lang/String;");
assertEquals(0, objectStreamClass.getField("d").getOffset());
assertEquals(1, objectStreamClass.getField("i").getOffset());
assertEquals(2, objectStreamClass.getField("s").getOffset());
}
/**
* Write/serialize and read/de-serialize an object with primitive field
*/
public void test_ObjectWithPrimitiveField()
throws IOException, ClassNotFoundException {
final ByteArrayOutputStream baos = new ByteArrayOutputStream();
final MyObjectOutputStream oos = new MyObjectOutputStream(baos);
oos.writeObject(new MockClass());
final byte[] bytes = baos.toByteArray();
final ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
final MyObjectInputStream ois = new MyObjectInputStream(bais);
// NullPointerException is thrown by the readObject call below.
ois.readObject();
}
/**
* Sets up the fixture, for example, open a network connection. This method
* is called before a test is executed.
*/
protected void setUp() {
osc = ObjectStreamClass.lookup(DummyClass.class);
bamField = osc.getField("bam");
samField = osc.getField("sam");
hamField = osc.getField("ham");
holaField = osc.getField("hola");
}
}
class SerializableObject implements Serializable {
public ObjectInputStream.GetField getField = null;
private static final long serialVersionUID = -2953957835918368056L;
public Date d;
public Integer i;
public Exception e;
public SerializableObject() {
d = new Date();
i = new Integer(1);
e = new Exception("e");
}
private void writeObject(ObjectOutputStream o) throws IOException {
o.putFields().put("d", new Date());
o.putFields().put("i", new Integer(11));
o.writeFields();
}
private void readObject(ObjectInputStream in) throws NotActiveException,
IOException, ClassNotFoundException {
getField = in.readFields();
d = (Date) getField.get("d", null);
i = (Integer) getField.get("i", null);
}
public ObjectStreamClass getObjectStreamClass() {
return getField.getObjectStreamClass();
}
}
class MockObjectInputStream extends ObjectInputStream {
private ObjectStreamClass temp = null;
public MockObjectInputStream() throws SecurityException, IOException {
super();
}
public MockObjectInputStream(InputStream in)
throws StreamCorruptedException, IOException {
super(in);
}
public ObjectStreamClass readClassDescriptor() throws IOException,
ClassNotFoundException {
ObjectStreamClass osc = super.readClassDescriptor();
// To get the ObjectStreamClass of SerializableObject
if (osc.getSerialVersionUID() == -2953957835918368056L) {
temp = osc;
}
return osc;
}
public ObjectStreamClass getObjectStreamClass() {
return temp;
}
}
class SerializableObject2 implements Serializable {
private static final long serialVersionUID = 1L;
private static final ObjectStreamField[] serialPersistentFields = {
new ObjectStreamField("i", Integer.class, true),
new ObjectStreamField("d", Date.class, false),
new ObjectStreamField("s", String.class, true), };
private ObjectInputStream.GetField getField;
public static Date today = new Date(1172632429156l);
public ObjectInputStream.GetField getGetField() {
return getField;
}
private void writeObject(ObjectOutputStream o) throws IOException {
ObjectOutputStream.PutField putField = o.putFields();
putField.put("i", new Integer(1000));
putField.put("d", today);
putField.put("s", "Richard");
o.writeFields();
}
private void readObject(ObjectInputStream in) throws NotActiveException,
IOException, ClassNotFoundException {
getField = in.readFields();
}
}
// Primitive fields are necessary to cause the NullPointerException.
class MockClass implements Serializable {
String str1 = "string 1";
String str2 = "string 2";
int int1 = 1;
int int2 = 2;
String str3 = "string 3";
}
// Overrides writeClassDescriptor to store ObjectStreamClass in map.
class MyObjectOutputStream extends ObjectOutputStream {
// record the only ObjectStreamClass
static ObjectStreamClass descs;
MyObjectOutputStream(OutputStream out)
throws IOException {
super(out);
}
@Override
protected void writeClassDescriptor(ObjectStreamClass desc)
throws IOException {
descs = desc;
// Write a int
writeInt(1);
}
}
// Overrides readClassDescriptor to get ObjectStreamClass from map.
class MyObjectInputStream extends ObjectInputStream {
MyObjectInputStream(InputStream in)
throws IOException {
super(in);
}
@Override
protected ObjectStreamClass readClassDescriptor()
throws IOException, ClassNotFoundException {
// Read a integer and get the only ObjectStreamClass for the test
final int id = readInt();
return MyObjectOutputStream.descs;
}
}