| /* |
| * Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved. |
| * 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. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6294683 |
| * @summary Test verifies that GIF ImageWriteParam behaves according to spec |
| */ |
| |
| import javax.imageio.ImageIO; |
| import javax.imageio.ImageWriteParam; |
| import javax.imageio.ImageWriter; |
| |
| public class DisableCompressionTest { |
| |
| public static void main(String[] args) { |
| testFormat("GIF"); |
| } |
| |
| protected static void testFormat(String format) { |
| ImageWriter writer = ImageIO.getImageWritersByFormatName(format).next(); |
| if (writer == null) { |
| throw new RuntimeException("No writer for " + format); |
| } |
| |
| ImageWriteParam param = writer.getDefaultWriteParam(); |
| int[] supported_modes = new int[] { |
| ImageWriteParam.MODE_COPY_FROM_METADATA, |
| ImageWriteParam.MODE_DEFAULT, |
| ImageWriteParam.MODE_EXPLICIT }; |
| |
| for (int mode : supported_modes) { |
| String mode_name = getModeName(mode); |
| System.out.println("Test mode " + mode_name + "..."); |
| // we know that GIF image writer supports compression |
| // and supports any compression mode form supportd_modes |
| // If exception would be thrown here then test failed. |
| param.setCompressionMode(mode); |
| |
| // now we are trying to disable compression. |
| // This operation is not supported because GIF image writer |
| // does not provide uncompressed output. |
| // The expected behaviour is that UnsupportedOperationException |
| // will be thrown here and current compression mode will not be |
| // changed. |
| boolean gotException = false; |
| try { |
| param.setCompressionMode(ImageWriteParam.MODE_DISABLED); |
| } catch (UnsupportedOperationException e) { |
| gotException = true; |
| } catch (Throwable e) { |
| throw new RuntimeException("Test failed due to unexpected exception", e); |
| } |
| |
| if (!gotException) { |
| throw new RuntimeException("Test failed."); |
| } |
| |
| if (param.getCompressionMode() != mode) { |
| throw new RuntimeException("Param state was changed."); |
| } |
| System.out.println("Test passed."); |
| } |
| } |
| |
| private static String getModeName(int mode) { |
| switch(mode) { |
| case ImageWriteParam.MODE_COPY_FROM_METADATA: |
| return "MODE_COPY_FROM_METADATA"; |
| case ImageWriteParam.MODE_DEFAULT: |
| return "MODE_DEFAULT"; |
| case ImageWriteParam.MODE_DISABLED: |
| return "MODE_DISABLED"; |
| case ImageWriteParam.MODE_EXPLICIT: |
| return "MODE_EXPLICIT"; |
| default: |
| throw new IllegalArgumentException("Unknown mode: " + mode); |
| } |
| } |
| } |