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/*
* Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 4017158 8180410
* @library /test/lib
* @build jdk.test.lib.RandomFactory
* @run testng Write
* @summary Check for correct implementation of ByteArrayInputStream.write
* @key randomness
*/
import java.io.ByteArrayOutputStream;
import java.util.Arrays;
import java.util.Random;
import jdk.test.lib.RandomFactory;
import org.testng.annotations.Test;
import static org.testng.Assert.*;
public class Write {
private static void doBoundsTest(byte[] b, int off, int len,
ByteArrayOutputStream baos)
throws Exception {
if (b != null) {
System.out.println("ByteArrayOutStream.write: b.length = " +
b.length + " off = " + off + " len = " + len);
} else{
System.out.println("ByteArrayOutStream.write: b is null off = " +
off + " len = " + len);
}
try {
baos.write(b, off, len);
} catch (IndexOutOfBoundsException e) {
System.out.println("IndexOutOfBoundsException is thrown: OKAY");
} catch (NullPointerException e) {
System.out.println("NullPointerException is thrown: OKAY");
} catch (Throwable e){
throw new RuntimeException("Unexpected Exception is thrown", e);
}
if (b != null) {
System.out.println("ByteArrayOutStream.writeBytes: b.length = " +
b.length);
} else{
System.out.println("ByteArrayOutStream.writeBytes: b is null");
}
try {
baos.writeBytes(b);
} catch (NullPointerException e) {
System.out.println("NullPointerException is thrown: OKAY");
} catch (Throwable e){
throw new RuntimeException("Unexpected Exception is thrown", e);
}
}
@Test
public static void boundsTest() throws Exception {
byte array1[] = {1 , 2 , 3 , 4 , 5}; // Simple array
//Create new ByteArrayOutputStream object
ByteArrayOutputStream y1 = new ByteArrayOutputStream(5);
doBoundsTest(array1, 0, Integer.MAX_VALUE , y1);
doBoundsTest(array1, 0, array1.length+100, y1);
doBoundsTest(array1, -1, 2, y1);
doBoundsTest(array1, 0, -1, y1);
doBoundsTest(null, 0, 2, y1);
}
@Test
public static void writeTest() throws Exception {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
Random rnd = RandomFactory.getRandom();
final int size = 17 + rnd.nextInt(128);
byte[] b = new byte[size];
rnd.nextBytes(b);
int off1 = rnd.nextInt(size / 4) + 1;
int len1 = Math.min(rnd.nextInt(size / 4) + 1, size - off1);
int off2 = rnd.nextInt(size / 2) + 1;
int len2 = Math.min(rnd.nextInt(size / 2) + 1, size - off2);
System.out.format("size: %d, off1: %d, len1: %d, off2: %d, len2: %d%n",
size, off1, len1, off2, len2);
baos.write(b, off1, len1);
byte[] b1 = baos.toByteArray();
assertEquals(b1.length, len1, "Array length test 1 failed.");
assertEquals(b1, Arrays.copyOfRange(b, off1, off1 + len1),
"Array equality test 1 failed.");
baos.write(b, off2, len2);
byte[] b2 = baos.toByteArray();
assertEquals(b2.length, len1 + len2, "Array length test 2 failed.");
assertEquals(Arrays.copyOfRange(b2, 0, len1),
Arrays.copyOfRange(b, off1, off1 + len1),
"Array equality test 2A failed.");
assertEquals(Arrays.copyOfRange(b2, len1, len1 + len2),
Arrays.copyOfRange(b, off2, off2 + len2),
"Array equality test 2B failed.");
baos.writeBytes(b);
byte[] b3 = baos.toByteArray();
int len3 = len1 + len2 + b.length;
if (b3.length != len1 + len2 + b.length) {
throw new RuntimeException("Array length test 3 failed.");
}
assertEquals(b3.length, len3, "Array length test 3 failed.");
assertEquals(Arrays.copyOfRange(b3, 0, len1),
Arrays.copyOfRange(b, off1, off1 + len1),
"Array equality test 3A failed.");
assertEquals(Arrays.copyOfRange(b3, len1, len1 + len2),
Arrays.copyOfRange(b, off2, off2 + len2),
"Array equality test 3B failed.");
assertEquals(Arrays.copyOfRange(b3, len1 + len2, len3), b,
"Array equality test 3C failed.");
}
}
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