91 lines
2.9 KiB
Java
91 lines
2.9 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 6275366 6275369
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* @summary Verifies that behaviour of GIFImageWriter.endWriteSequence() is
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* consistent with specification
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*/
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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 EndWriteSequenceTest {
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public static void main(String[] args) throws IOException {
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ImageWriter w =
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ImageIO.getImageWritersByFormatName("GIF").next();
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boolean gotCorrectException = false;
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/**
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* check statement: "Throws: IllegalStateException -
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* if the output has not been set ...."
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*/
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try {
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w.reset(); // to be shure that output is null
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w.endWriteSequence();
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} catch (IllegalStateException e) {
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gotCorrectException = true;
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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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if (!gotCorrectException) {
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throw new RuntimeException("Test failed.");
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}
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/**
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* set up output stream
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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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/**
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* check statement: "Throws: IllegalStateException -
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* if .... prepareWriteSequence has not been called.
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*/
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gotCorrectException = false;
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try {
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w.endWriteSequence();
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} catch (IllegalStateException e) {
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gotCorrectException = true;
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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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if (!gotCorrectException) {
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throw new RuntimeException("Test failed.");
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}
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System.out.println("Test passed.");
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}
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}
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