80 lines
2.6 KiB
Java
80 lines
2.6 KiB
Java
/*
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* Copyright (c) 2005, 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 6275251
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* @summary Verifies that GIF image writer throws IllegalStateException if
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* assigned output stream was cleared by reset() method
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*/
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import java.awt.Color;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageWriter;
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import javax.imageio.stream.ImageOutputStream;
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public class WriterResetTest {
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public static void main(String[] args) throws IOException {
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ImageWriter w = ImageIO.getImageWritersByFormatName("GIF").next();
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if (w == null) {
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throw new RuntimeException("No writers available!");
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}
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ByteArrayOutputStream baos =
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new ByteArrayOutputStream();
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ImageOutputStream ios =
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ImageIO.createImageOutputStream(baos);
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w.setOutput(ios);
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BufferedImage img = createTestImage();
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try {
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w.reset();
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w.write(img);
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} catch (IllegalStateException e) {
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System.out.println("Test passed");
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} catch (Throwable e) {
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throw new RuntimeException("Test failed", e);
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}
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}
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private static BufferedImage createTestImage() {
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BufferedImage img = new BufferedImage(100, 100,
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BufferedImage.TYPE_INT_RGB);
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Graphics2D g = img.createGraphics();
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g.setColor(Color.white);
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g.fillRect(0, 0, 100, 100);
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g.setColor(Color.black);
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g.fillRect(20, 20, 60, 60);
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return img;
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}
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}
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