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8028628: java/nio/channels/FileChannel/Size.java failed once in the same binary run

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Reviewed-by: alanb, chegar, mchung, lancea
This commit is contained in:
Dan Xu 2013-11-21 14:23:41 -08:00
parent cf45a693dc
commit a353eaac39
1 changed files with 35 additions and 45 deletions
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80
jdk/test/java/nio/channels/FileChannel/Size.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2000, 2013, 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
@ -39,67 +39,57 @@ import java.util.Random;
public class Size {
private static Random generator = new Random();
private static File blah;
public static void main(String[] args) throws Exception {
test1();
test2();
testSmallFile();
testLargeFile();
}
private static void test1() throws Exception {
blah = File.createTempFile("blah", null);
blah.deleteOnExit();
private static void testSmallFile() throws Exception {
File smallFile = new File("smallFileTest");
Random generator = new Random();
for(int i=0; i<100; i++) {
long testSize = generator.nextInt(1000);
initTestFile(blah, testSize);
FileInputStream fis = new FileInputStream(blah);
FileChannel c = fis.getChannel();
if (c.size() != testSize)
throw new RuntimeException("Size failed");
c.close();
fis.close();
initTestFile(smallFile, testSize);
try (FileChannel c = new FileInputStream(smallFile).getChannel()) {
if (c.size() != testSize) {
throw new RuntimeException("Size failed in testSmallFile. "
+ "Expect size " + testSize
+ ", actual size " + c.size());
}
}
}
blah.delete();
smallFile.deleteOnExit();
}
// Test for bug 4563125
private static void test2() throws Exception {
// Windows and Linux can't handle the really large file sizes for a truncate
// or a positional write required by the test for 4563125
String osName = System.getProperty("os.name");
if (osName.startsWith("SunOS") || osName.contains("OS X")) {
blah = File.createTempFile("blah", null);
long testSize = ((long)Integer.MAX_VALUE) * 2;
initTestFile(blah, 10);
RandomAccessFile raf = new RandomAccessFile(blah, "rw");
FileChannel fc = raf.getChannel();
private static void testLargeFile() throws Exception {
File largeFile = new File("largeFileTest");
long testSize = ((long)Integer.MAX_VALUE) * 2;
initTestFile(largeFile, 10);
try (FileChannel fc = new RandomAccessFile(largeFile, "rw").getChannel())
{
fc.size();
fc.map(FileChannel.MapMode.READ_WRITE, testSize, 10);
if (fc.size() != testSize + 10)
throw new RuntimeException("Size failed " + fc.size());
fc.close();
raf.close();
blah.delete();
if (fc.size() != testSize + 10) {
throw new RuntimeException("Size failed in testLargeFile. "
+ "Expect size " + (testSize + 10)
+ ", actual size " + fc.size());
}
}
largeFile.deleteOnExit();
}
/**
* Creates file blah of specified size in bytes.
* Create a file with the specified size in bytes.
*
*/
private static void initTestFile(File blah, long size) throws Exception {
if (blah.exists())
blah.delete();
FileOutputStream fos = new FileOutputStream(blah);
BufferedWriter awriter
= new BufferedWriter(new OutputStreamWriter(fos, "8859_1"));
for(int i=0; i<size; i++) {
awriter.write("e");
private static void initTestFile(File f, long size) throws Exception {
try (BufferedWriter awriter = new BufferedWriter(
new OutputStreamWriter(new FileOutputStream(f), "8859_1")))
{
for(int i=0; i<size; i++) {
awriter.write("e");
}
}
awriter.flush();
awriter.close();
}
}