/*
* 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.tests.java.util.zip;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.zip.Deflater;
import java.util.zip.Inflater;
import java.util.zip.InflaterOutputStream;
import java.util.zip.ZipException;
import junit.framework.TestCase;
public class InflaterOutputStreamTest extends TestCase {
private ByteArrayOutputStream os = new ByteArrayOutputStream();
private byte[] compressedBytes = new byte[100];
private String testString = "Hello world";
/**
* java.util.zip.InflaterOutputStream#InflaterOutputStream(java.io.OutputStream)
*/
public void test_ConstructorLjava_io_OutputStream() throws IOException {
new InflaterOutputStream(os);
try {
new InflaterOutputStream(null);
fail("Should throw NullPointerException");
} catch (NullPointerException e) {
// expected
}
}
/**
* java.util.zip.InflaterOutputStream#InflaterOutputStream(java.io.OutputStream, Inflater)
*/
public void test_ConstructorLjava_io_OutputStreamLjava_util_zip_Inflater() {
new InflaterOutputStream(os, new Inflater());
try {
new InflaterOutputStream(null, new Inflater());
fail("Should throw NullPointerException");
} catch (NullPointerException e) {
// expected
}
try {
new InflaterOutputStream(os, null);
fail("Should throw NullPointerException");
} catch (NullPointerException e) {
// expected
}
}
/**
* java.util.zip.InflaterOutputStream#InflaterOutputStream(java.io.OutputStream, Inflater, int)
*/
public void test_ConstructorLjava_io_OutputStreamLjava_util_zip_InflaterI() {
new InflaterOutputStream(os, new Inflater(), 20);
try {
new InflaterOutputStream(null, null, 10);
fail("Should throw NullPointerException");
} catch (NullPointerException e) {
// expected
}
try {
new InflaterOutputStream(null, new Inflater(), -1);
fail("Should throw NullPointerException");
} catch (NullPointerException e) {
// expected
}
try {
new InflaterOutputStream(os, null, -1);
fail("Should throw NullPointerException");
} catch (NullPointerException e) {
// expected
}
try {
new InflaterOutputStream(null, null, -1);
fail("Should throw NullPointerException");
} catch (NullPointerException e) {
// expected
}
try {
new InflaterOutputStream(os, new Inflater(), 0);
fail("Should throw IllegalArgumentException");
} catch (IllegalArgumentException e) {
// expected
}
try {
new InflaterOutputStream(os, new Inflater(), -10000);
fail("Should throw IllegalArgumentException");
} catch (IllegalArgumentException e) {
// expected
}
}
/**
* java.util.zip.InflaterOutputStream#close()
*/
public void test_close() throws IOException {
InflaterOutputStream ios = new InflaterOutputStream(os);
ios.close();
// multiple close
ios.close();
}
/**
* java.util.zip.InflaterOutputStream#flush()
*/
public void test_flush() throws IOException {
InflaterOutputStream ios = new InflaterOutputStream(os);
ios.close();
try {
ios.flush();
fail("Should throw IOException");
} catch (IOException e) {
// expected
}
ios = new InflaterOutputStream(os);
ios.flush();
ios.flush();
}
/**
* java.util.zip.InflaterOutputStream#finish()
*/
public void test_finish() throws IOException {
InflaterOutputStream ios = new InflaterOutputStream(os);
ios.close();
try {
ios.finish();
fail("Should throw IOException");
} catch (IOException e) {
// expected
}
ios = new InflaterOutputStream(os);
ios.finish();
ios.finish();
ios.flush();
ios.flush();
ios.finish();
byte[] bytes1 = { 10, 20, 30, 40, 50 };
Deflater defaultDeflater = new Deflater(Deflater.BEST_SPEED);
defaultDeflater.setInput(bytes1);
defaultDeflater.finish();
int length1 = defaultDeflater.deflate(compressedBytes);
byte[] bytes2 = { 100, 90, 80, 70, 60 };
Deflater bestDeflater = new Deflater(Deflater.BEST_COMPRESSION);
bestDeflater.setInput(bytes2);
bestDeflater.finish();
int length2 = bestDeflater.deflate(compressedBytes, length1, compressedBytes.length - length1);
ios = new InflaterOutputStream(os);
for (int i = 0; i < length1; i++) {
ios.write(compressedBytes[i]);
}
ios.finish();
ios.close();
byte[] result = os.toByteArray();
for (int i = 0; i < bytes1.length; i++) {
assertEquals(bytes1[i], result[i]);
}
ios = new InflaterOutputStream(os);
for (int i = length1; i < length2 * 2; i++) {
ios.write(compressedBytes[i]);
}
ios.finish();
ios.close();
result = os.toByteArray();
for (int i = 0; i < bytes2.length; i++) {
assertEquals(bytes2[i], result[bytes1.length + i]);
}
}
/**
* java.util.zip.InflaterOutputStream#write(int)
*/
public void test_write_I() throws IOException {
int length = compressToBytes(testString);
// uncompress the data stored in the compressedBytes
InflaterOutputStream ios = new InflaterOutputStream(os);
for (int i = 0; i < length; i++) {
ios.write(compressedBytes[i]);
}
String result = new String(os.toByteArray());
assertEquals(testString, result);
}
/**
* java.util.zip.InflaterOutputStream#write(int)
*/
public void test_write_I_Illegal() throws IOException {
// write after close
InflaterOutputStream ios = new InflaterOutputStream(os);
ios.close();
try {
ios.write(-1);
fail("Should throw IOException");
} catch (IOException e) {
// expected
}
}
/**
* java.util.zip.InflaterOutputStream#write(byte[], int, int)
*/
public void test_write_$BII() throws IOException {
int length = compressToBytes(testString);
// uncompress the data stored in the compressedBytes
InflaterOutputStream ios = new InflaterOutputStream(os);
ios.write(compressedBytes, 0, length);
String result = new String(os.toByteArray());
assertEquals(testString, result);
}
/**
* java.util.zip.InflaterOutputStream#write(byte[], int, int)
*/
public void test_write_$BII_Illegal() throws IOException {
// write error compression (ZIP) format
InflaterOutputStream ios = new InflaterOutputStream(os);
byte[] bytes = { 0, 1, 2, 3 };
try {
ios.write(bytes, 0, 4);
fail("Should throw ZipException");
} catch (ZipException e) {
// expected
}
try {
ios.flush();
fail("Should throw ZipException");
} catch (ZipException e) {
// expected
}
// write after close
ios = new InflaterOutputStream(os);
ios.close();
try {
ios.write(bytes, 0, 4);
fail("Should throw IOException");
} catch (IOException e) {
// expected
}
try {
ios.write(bytes, -1, 4);
fail("Should throw IOException");
} catch (IOException e) {
// expected
}
try {
ios.write(bytes, -1, -4);
fail("Should throw IOException");
} catch (IOException e) {
// expected
}
try {
ios.write(bytes, 0, 400);
fail("Should throw IOException");
} catch (IOException e) {
// expected
}
try {
ios.write(null, -1, 4);
fail("Should throw IOException");
} catch (IOException e) {
// expected
}
ios = new InflaterOutputStream(os);
try {
ios.write(null, 0, 4);
fail("Should throw NullPointerException");
} catch (NullPointerException e) {
// expected
}
try {
ios.write(null, -1, 4);
fail("Should throw NullPointerException");
} catch (NullPointerException e) {
// expected
}
try {
ios.write(null, 0, -4);
fail("Should throw NullPointerException");
} catch (NullPointerException e) {
// expected
}
try {
ios.write(null, 0, 1000);
fail("Should throw NullPointerException");
} catch (NullPointerException e) {
// expected
}
try {
ios.write(bytes, -1, 4);
fail("Should throw IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
// expected
}
try {
ios.write(bytes, 0, -4);
fail("Should throw IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
// expected
}
try {
ios.write(bytes, 0, 100);
fail("Should throw IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
// expected
}
try {
ios.write(bytes, -100, 100);
fail("Should throw IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
// expected
}
ios = new InflaterOutputStream(os);
ios.finish();
try {
ios.write(bytes, -1, -100);
fail("Should throw IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
// expected
}
try {
ios.write(null, -1, -100);
fail("Should throw NullPointerException");
} catch (NullPointerException e) {
// expected
}
ios = new InflaterOutputStream(os);
ios.flush();
try {
ios.write(bytes, 0, 4);
fail("Should throw ZipException");
} catch (ZipException e) {
// expected
}
}
// Compress the test string into compressedBytes
private int compressToBytes(String string) {
byte[] input = string.getBytes();
Deflater deflater = new Deflater();
deflater.setInput(input);
deflater.finish();
return deflater.deflate(compressedBytes);
}
}