/*

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 * 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.

 *

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 */

/*

 * @test

 * @bug 4954545

 * @summary This test verifies whether the ImageWriter implementations throw

 *          IllegalArgumentException when a null image is passed to the write

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

 *          IIORegistry.

 */

import java.io.FileOutputStream;

import java.util.Iterator;

import javax.imageio.ImageIO;

import javax.imageio.ImageWriter;

import javax.imageio.spi.IIORegistry;

import javax.imageio.spi.ImageWriterSpi;

import javax.imageio.stream.ImageOutputStream;

public class WriteNullImageTest {

    public WriteNullImageTest() {

        boolean testFailed = false;

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

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

            "null, for the image formats: ";

        try {

            IIORegistry reg = IIORegistry.getDefaultInstance();

            ImageWriter writer = null;

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

            while (writerSpiIter.hasNext()) {

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

                writer = writerSpi.createWriterInstance();

                String names[] = writerSpi.getFormatNames();

                FileOutputStream fos = new FileOutputStream("temp");

                ImageOutputStream ios = ImageIO.createImageOutputStream(fos);

                writer.setOutput(ios);

                try {

                    writer.write(null, null, null);

                } catch (IllegalArgumentException iae) {

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

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

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

                } catch (Exception e) {

                    testFailed = true;

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

                }

            }

        } catch (Exception e) {

            testFailed = true;

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

        }

        if (testFailed) {

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

            throw new RuntimeException(failMsg);

        }

    }

    public static void main(String args[]) {

        WriteNullImageTest test = new WriteNullImageTest();

    }

}