test/jdk/javax/imageio/WriteNullImageTest.java
author erikj
Tue, 12 Sep 2017 19:03:39 +0200
changeset 47216 71c04702a3d5
parent 45351 jdk/test/javax/imageio/WriteNullImageTest.java@f7f615a3aaff
permissions -rw-r--r--
8187443: Forest Consolidation: Move files to unified layout Reviewed-by: darcy, ihse
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/*
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 * Copyright (c) 2003, 2017, 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 4954545
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 * @summary This test verifies whether the ImageWriter implementations throw
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 *          IllegalArgumentException when a null image is passed to the write
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 *          method. This is tested for all the image writers available with the
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 *          IIORegistry.
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 */
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import java.io.FileOutputStream;
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import java.util.Iterator;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageWriter;
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import javax.imageio.spi.IIORegistry;
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import javax.imageio.spi.ImageWriterSpi;
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import javax.imageio.stream.ImageOutputStream;
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public class WriteNullImageTest {
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    public WriteNullImageTest() {
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        boolean testFailed = false;
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        String failMsg = "FAIL: IllegalArgumentException is not thrown by the " +
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            "ImageWriter when the image passed to the write() method is " +
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            "null, for the image formats: ";
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        try {
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            IIORegistry reg = IIORegistry.getDefaultInstance();
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            ImageWriter writer = null;
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            Iterator writerSpiIter = reg.getServiceProviders(ImageWriterSpi.class, true);
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            while (writerSpiIter.hasNext()) {
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                ImageWriterSpi writerSpi = (ImageWriterSpi) writerSpiIter.next();
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                writer = writerSpi.createWriterInstance();
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                String names[] = writerSpi.getFormatNames();
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                FileOutputStream fos = new FileOutputStream("temp");
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                ImageOutputStream ios = ImageIO.createImageOutputStream(fos);
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                writer.setOutput(ios);
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                try {
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                    writer.write(null, null, null);
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                } catch (IllegalArgumentException iae) {
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                    System.out.println("PASS: Expected exception is thrown when null img is passed " +
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                                       "to the write method, for the image format: " + names[0]);
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                    System.out.println("\n");
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                } catch (Exception e) {
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                    testFailed = true;
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                    failMsg = failMsg + names[0] + ", ";
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                }
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            }
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        } catch (Exception e) {
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            testFailed = true;
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            throw new RuntimeException("Test Failed. Exception thrown: " + e.toString());
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        }
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        if (testFailed) {
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            failMsg = failMsg.substring(0, failMsg.lastIndexOf(","));
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            throw new RuntimeException(failMsg);
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        }
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    }
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    public static void main(String args[]) {
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        WriteNullImageTest test = new WriteNullImageTest();
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    }
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}