102 lines
3.2 KiB
Java
102 lines
3.2 KiB
Java
/*
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* Copyright (c) 2001, 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 4429365
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* @summary Checks that ImageReadParam.setSourceProgressivePasses handles
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* overflow correctly
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*/
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import javax.imageio.ImageReadParam;
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public class ImageReadParamPasses {
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private static final int maxint = Integer.MAX_VALUE;
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private static void expect(int i, int j) {
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if (i != j) {
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throw new RuntimeException("Expected " + i + ", got " + j);
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}
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}
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private static void checkForIAE(int minPass, int numPasses) {
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ImageReadParam param = new ImageReadParam();
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boolean gotIAE = false;
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try {
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param.setSourceProgressivePasses(minPass, numPasses);
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} catch (IllegalArgumentException iae) {
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gotIAE = true;
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}
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if (!gotIAE) {
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throw new RuntimeException("Failed to get IAE for wraparound!");
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}
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}
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private static void test(int minPass, int numPasses) {
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ImageReadParam param = new ImageReadParam();
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param.setSourceProgressivePasses(minPass, numPasses);
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expect(param.getSourceMinProgressivePass(), minPass);
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expect(param.getSourceNumProgressivePasses(), numPasses);
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int maxPass = numPasses == maxint ? maxint : minPass + numPasses - 1;
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expect(param.getSourceMaxProgressivePass(), maxPass);
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}
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public static void main(String[] args) {
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// Typical case
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test(17, 30);
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// Read all passes
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test(0, maxint);
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// Start at pass 17, continue indefinitely
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test(17, maxint);
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// Start at pass maxint - 10, continue indefinitely
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test(maxint - 10, maxint);
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// Start at pass maxint - 10, go up to maxint - 1
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test(maxint - 10, 10);
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// Start at pass maxint - 10, go up to maxint
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test(maxint - 10, 11);
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// Start at maxint, continue indefinitely :-)
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test(maxint, maxint);
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// Start at maxint, go up to maxint
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test(maxint, 1);
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// Check that an IllegalArgumentException is thrown if
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// wraparound occurs
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checkForIAE(maxint, 2);
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checkForIAE(maxint - 5, 10);
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checkForIAE(10, maxint - 5);
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checkForIAE(maxint - 1000, maxint - 1000);
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checkForIAE(maxint - 1, maxint - 1);
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}
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}
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