russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
76 lines
2.6 KiB
Java
76 lines
2.6 KiB
Java
/*
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* Copyright (c) 2025, 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 8364768
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* @summary Tests that the standard plugins flush the stream after writing a complete image.
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*/
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import static java.awt.Color.WHITE;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.io.IOException;
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import java.io.ByteArrayOutputStream;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageWriter;
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import javax.imageio.stream.FileCacheImageOutputStream;
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public class FlushTest {
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static final int SZ = 1000;
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static BufferedImage bi;
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static final String[] FORMATS = { "jpg", "png", "gif", "tiff", "bmp", "wbmp" } ;
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static boolean failed = false;
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public static void main(String[] args) throws IOException {
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bi = new BufferedImage(SZ, SZ, BufferedImage.TYPE_BYTE_BINARY);
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Graphics2D g2d = bi.createGraphics();
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g2d.setPaint(WHITE);
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g2d.fillRect(0, 0, SZ, SZ);
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for (String f : FORMATS) {
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testWrite(f);
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}
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if (failed) {
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throw new RuntimeException("Stream sizes differ.");
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}
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}
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static void testWrite(String fmt) throws IOException {
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ImageWriter iw = ImageIO.getImageWritersBySuffix(fmt).next();
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System.out.println(iw);
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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FileCacheImageOutputStream fcs = new FileCacheImageOutputStream(baos, null);
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iw.setOutput(fcs);
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iw.write(bi);
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int sz0 = baos.size();
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fcs.close();
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int sz1 = baos.size();
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System.out.println("fmt=" + fmt + " sizes=" + sz0 + ", " + sz1);
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if (sz0 != sz1) {
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failed = true;
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}
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}
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}
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