98 lines
2.9 KiB
Java
98 lines
2.9 KiB
Java
/*
|
|
* Copyright (c) 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
|
|
* 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 8022632
|
|
* @summary Test verifies that SPI of WBMP image reader
|
|
* restores the stream position if an IOException
|
|
* occurs during processing of image header.
|
|
* @run main StreamResetTest
|
|
*/
|
|
|
|
|
|
import java.io.IOException;
|
|
import javax.imageio.ImageIO;
|
|
import javax.imageio.ImageReader;
|
|
import javax.imageio.spi.ImageReaderSpi;
|
|
import javax.imageio.stream.ImageInputStreamImpl;
|
|
|
|
public class StreamResetTest {
|
|
|
|
public static void main(String[] args) {
|
|
IOException expectedException = null;
|
|
TestStream iis = new TestStream();
|
|
|
|
ImageReader wbmp = ImageIO.getImageReadersByFormatName("WBMP").next();
|
|
if (wbmp == null) {
|
|
System.out.println("No WBMP reader: skip the test");
|
|
return;
|
|
}
|
|
|
|
ImageReaderSpi spi = wbmp.getOriginatingProvider();
|
|
|
|
iis.checkPosition();
|
|
|
|
try {
|
|
spi.canDecodeInput(iis);
|
|
} catch (IOException e) {
|
|
expectedException = e;
|
|
}
|
|
|
|
if (expectedException == null) {
|
|
throw new RuntimeException("Test FAILED: stream was not used");
|
|
}
|
|
|
|
iis.checkPosition();
|
|
|
|
System.out.println("Test PASSED");
|
|
|
|
}
|
|
|
|
private static class TestStream extends ImageInputStreamImpl {
|
|
private final int errorPos = 1;
|
|
|
|
@Override
|
|
public int read() throws IOException {
|
|
if (streamPos == errorPos) {
|
|
throw new IOException("Test exception");
|
|
}
|
|
streamPos++;
|
|
|
|
return 0x03;
|
|
}
|
|
|
|
@Override
|
|
public int read(byte[] b, int off, int len) throws IOException {
|
|
streamPos += len;
|
|
return len;
|
|
}
|
|
|
|
public void checkPosition() {
|
|
if (streamPos != 0) {
|
|
throw new RuntimeException("Test FAILED");
|
|
}
|
|
}
|
|
}
|
|
}
|