< prev index next >
test/jdk/java/io/ByteArrayOutputStream/Write.java
Print this page
@@ -1,7 +1,7 @@
/*
- * Copyright (c) 1997, Oracle and/or its affiliates. All rights reserved.
+ * 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.
@@ -19,58 +19,124 @@
* 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
- @summary Check for correct implementation of ByteArrayInputStream.write
+/*
+ * @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.*;
-
+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 WriteBounds{
-
- private static void dotest(byte[] b, int off, int len,
+public class Write {
+ private static void doBoundsTest(byte[] b, int off, int len,
ByteArrayOutputStream baos)
- throws Exception
- {
-
+ throws Exception {
if (b != null) {
- System.err.println("ByteArrayOutStream.write -- b.length = " +
+ System.out.println("ByteArrayOutStream.write: b.length = " +
b.length + " off = " + off + " len = " + len);
- }
- else{
- System.err.println("ByteArrayOutStream.write - b is null off = " +
+ } else{
+ System.out.println("ByteArrayOutStream.write: b is null off = " +
off + " len = " + len);
}
try {
baos.write(b, off, len);
} catch (IndexOutOfBoundsException e) {
- System.err.println("IndexOutOfBoundsException is thrown -- OKAY");
+ System.out.println("IndexOutOfBoundsException is thrown: OKAY");
} catch (NullPointerException e) {
- System.err.println("NullPointerException is thrown -- OKAY");
+ System.out.println("NullPointerException is thrown: OKAY");
} catch (Throwable e){
- throw new RuntimeException("Unexpected Exception is thrown");
+ 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");
}
- public static void main( String argv[] ) throws Exception {
+ 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);
+ }
+ }
- ByteArrayOutputStream y1;
- byte array1[]={1 , 2 , 3 , 4 , 5}; // Simple array
+ @Test
+ public static void boundsTest() throws Exception {
+ byte array1[] = {1 , 2 , 3 , 4 , 5}; // Simple array
//Create new ByteArrayOutputStream object
- y1 = new ByteArrayOutputStream(5);
-
- dotest(array1, 0, Integer.MAX_VALUE , y1);
- dotest(array1, 0, array1.length+100, y1);
- dotest(array1, -1, 2, y1);
- dotest(array1, 0, -1, y1);
- dotest(null, 0, 2, y1);
+ 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.");
+ }
}
< prev index next >