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/*
* Copyright 2002-2017 Drew Noakes
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* More information about this project is available at:
*
* https://drewnoakes.com/code/exif/
* https://github.com/drewnoakes/metadata-extractor
*/
package com.drew.metadata.jfif;
import com.drew.lang.ByteArrayReader;
import com.drew.metadata.Metadata;
import com.drew.metadata.Tag;
import org.junit.Test;
import static org.junit.Assert.*;
/**
* @author Drew Noakes https://drewnoakes.com
*/
public class JfifReaderTest
{
@Test public void testRead() throws Exception
{
final byte[] jfifData = new byte[] {
74,70,73,70,0,
1,2,
1,
0,108,
0,108,
0,0
};
final Metadata metadata = new Metadata();
final JfifReader reader = new JfifReader();
reader.extract(new ByteArrayReader(jfifData), metadata);
assertEquals(1, metadata.getDirectoryCount());
JfifDirectory directory = metadata.getFirstDirectoryOfType(JfifDirectory.class);
assertNotNull(directory);
assertFalse(directory.getErrors().toString(), directory.hasErrors());
Tag[] tags = directory.getTags().toArray(new Tag[directory.getTagCount()]);
assertEquals(6, tags.length);
assertEquals(JfifDirectory.TAG_VERSION, tags[0].getTagType());
assertEquals(0x0102, directory.getInt(tags[0].getTagType()));
assertEquals(JfifDirectory.TAG_UNITS, tags[1].getTagType());
assertEquals(1, directory.getInt(tags[1].getTagType()));
assertEquals(JfifDirectory.TAG_RESX, tags[2].getTagType());
assertEquals(108, directory.getInt(tags[2].getTagType()));
assertEquals(JfifDirectory.TAG_RESY, tags[3].getTagType());
assertEquals(108, directory.getInt(tags[3].getTagType()));
assertEquals(JfifDirectory.TAG_THUMB_WIDTH, tags[4].getTagType());
assertEquals(0, directory.getInt(tags[4].getTagType()));
assertEquals(JfifDirectory.TAG_THUMB_HEIGHT, tags[5].getTagType());
assertEquals(0, directory.getInt(tags[5].getTagType()));
}
}
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