1 /*

     2  * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @bug 4954545

    27  * @summary This test verifies whether the ImageWriter implementations throw

    28  *          IllegalArgumentException when a null image is passed to the write

    29  *          method. This is tested for all the image writers available with the

    30  *          IIORegistry.

    31  */

    32 

    33 import java.io.FileOutputStream;

    34 import java.util.Iterator;

    35 

    36 import javax.imageio.ImageIO;

    37 import javax.imageio.ImageWriter;

    38 import javax.imageio.spi.IIORegistry;

    39 import javax.imageio.spi.ImageWriterSpi;

    40 import javax.imageio.stream.ImageOutputStream;

    41 

    42 public class WriteNullImageTest {

    43 

    44     public WriteNullImageTest() {

    45         boolean testFailed = false;

    46         String failMsg = "FAIL: IllegalArgumentException is not thrown by the " +

    47             "ImageWriter when the image passed to the write() method is " +

    48             "null, for the image formats: ";

    49 

    50         try {

    51             IIORegistry reg = IIORegistry.getDefaultInstance();

    52             ImageWriter writer = null;

    53             Iterator writerSpiIter = reg.getServiceProviders(ImageWriterSpi.class, true);

    54 

    55             while (writerSpiIter.hasNext()) {

    56                 ImageWriterSpi writerSpi = (ImageWriterSpi) writerSpiIter.next();

    57                 writer = writerSpi.createWriterInstance();

    58                 String names[] = writerSpi.getFormatNames();

    59 

    60                 FileOutputStream fos = new FileOutputStream("temp");

    61                 ImageOutputStream ios = ImageIO.createImageOutputStream(fos);

    62                 writer.setOutput(ios);

    63 

    64                 try {

    65                     writer.write(null, null, null);

    66                 } catch (IllegalArgumentException iae) {

    67                     System.out.println("PASS: Expected exception is thrown when null img is passed " +

    68                                        "to the write method, for the image format: " + names[0]);

    69                     System.out.println("\n");

    70                 } catch (Exception e) {

    71                     testFailed = true;

    72                     failMsg = failMsg + names[0] + ", ";

    73                 }

    74             }

    75 

    76         } catch (Exception e) {

    77             testFailed = true;

    78             throw new RuntimeException("Test Failed. Exception thrown: " + e.toString());

    79         }

    80         if (testFailed) {

    81             failMsg = failMsg.substring(0, failMsg.lastIndexOf(","));

    82             throw new RuntimeException(failMsg);

    83         }

    84     }

    85 

    86     public static void main(String args[]) {

    87         WriteNullImageTest test = new WriteNullImageTest();

    88     }

    89 }