276 lines
9.2 KiB
Java
276 lines
9.2 KiB
Java
/*
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* Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 4181483
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* @summary Test if InputStream methods will check if the stream
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* has been closed.
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*/
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import java.io.*;
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public enum OpsAfterClose {
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READ { boolean check(InputStream is) {
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try {
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int read = is.read();
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System.out.println("read returns: " + read);
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_BUF { boolean check(InputStream is) {
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try {
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byte buf[] = new byte[2];
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int read = is.read(buf);
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System.out.println("read(buf) returns: " + read);
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_BUF_OFF { boolean check(InputStream is) {
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try {
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byte buf[] = new byte[2];
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int len = 1;
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int read = is.read(buf, 0, len);
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System.out.println("read(buf, 0, len) returns: " + read);
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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AVAILABLE { boolean check(InputStream is) {
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try {
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int avail = is.available();
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System.out.println("available() returns: " + avail);
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return false;
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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} },
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SKIP { boolean check(InputStream is) {
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try {
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long skipped = is.skip(1);
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System.out.println("skip() returns: " + skipped);
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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MARK { boolean check(InputStream is) {
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is.mark(20);
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return true;
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} },
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RESET { boolean check(InputStream is) {
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try {
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is.reset();
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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MARK_SUPPORTED { boolean check(InputStream is) {
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is.markSupported();
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return true;
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} },
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CLOSE { boolean check(InputStream is) {
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try {
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is.close();
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return true; // No Exception thrown on windows for FileInputStream
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true; // Exception thrown on solaris and linux for FileInputStream
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}
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} };
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abstract boolean check(InputStream is);
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public static void main(String args[]) throws Exception {
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boolean failed = false;
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File f = new File(System.getProperty("test.dir", "."),
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"f.txt");
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f.createNewFile();
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f.deleteOnExit();
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FileInputStream fis = new FileInputStream(f);
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try {
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if (testInputStream(fis)) {
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failed = true;
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}
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if (testFileInputStream(fis)) {
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failed = true;
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}
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} finally {
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fis.close();
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}
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BufferedInputStream bs = new BufferedInputStream(
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new FileInputStream(f));
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try {
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if (testInputStream(bs)) {
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failed = true;
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}
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} finally {
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bs.close();
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}
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DataInputStream dis = new DataInputStream(
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new FileInputStream(f));
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try {
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if (testInputStream(dis)) {
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failed = true;
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}
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} finally {
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dis.close();
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}
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PushbackInputStream pbis = new PushbackInputStream(
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new ByteArrayInputStream(new byte[20]));
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if (testInputStream(pbis)) {
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failed = true;
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}
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if (testPushbackInputStream(pbis)) {
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failed = true;
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}
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PipedInputStream pis = new PipedInputStream(new PipedOutputStream());
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if (testInputStream(pis)) {
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failed = true;
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}
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/**
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* The SequenceInputStream and ObjectInputStream does not throw IOException
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SequenceInputStream sqis = new SequenceInputStream(
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new FileInputStream(f),
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new PipedInputStream(new PipedOutputStream())
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);
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if (testInputStream(sqis)) {
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failed = true;
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}
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String serStr = "abc";
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ObjectOutputStream oos = new ObjectOutputStream(
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new FileOutputStream(f));
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oos.writeObject(serStr);
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oos.close();
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ObjectInputStream ois = new ObjectInputStream(
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new FileInputStream(f));
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if (testInputStream(ois)) {
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failed = true;
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}
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*/
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if (failed) {
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throw new Exception(
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"Some Op for some Stream failed, check the failed status above");
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}
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}
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private static boolean testInputStream(InputStream is)
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throws Exception {
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is.close();
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boolean failed = false;
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boolean result;
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System.out.println("Testing :" + is);
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for (OpsAfterClose op : OpsAfterClose.values()) {
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if (op.equals(AVAILABLE) && (is instanceof PipedInputStream)) {
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// skip the test as available() returns 0
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continue;
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}
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result = op.check(is);
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if (!result) {
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failed = true;
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}
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System.out.println(op + ":" + result);
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}
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if (failed) {
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System.out.println("Test failed for the failed operation{s}" +
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" above for :" + is);
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}
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return failed;
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}
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private static boolean testPushbackInputStream(PushbackInputStream pis)
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throws Exception {
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boolean failed = false;
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try {
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pis.unread(1);
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System.out.println("Test failed for unread(int):" + pis);
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failed = true;
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} catch (IOException io) {
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System.out.println("UNREAD(int):true");
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}
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byte buf[] = new byte[2];
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try {
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pis.unread(buf, 0, 2);
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System.out.println("Test failed for unread(buf, offset, len):" +
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pis);
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failed = true;
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} catch (IOException io) {
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System.out.println("UNREAD(buf, offset, len):true");
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}
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try {
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pis.unread(buf);
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System.out.println("Test failed for unread(char[] buf):" + pis);
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failed = true;
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} catch (IOException io) {
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System.out.println("UNREAD(buf):true");
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}
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return failed;
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}
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private static boolean testFileInputStream(FileInputStream fis)
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throws Exception {
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boolean failed = false;
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try {
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fis.getFD();
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System.out.println("GetFD: true");
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} catch (IOException io) {
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System.out.println("GetFD: false");
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failed = true;
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}
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fis.getChannel();
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System.out.println("GetChannel: true");
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return failed;
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}
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}
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