/*
* Copyright 2002-2012 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:
*
* http://drewnoakes.com/code/exif/
* http://code.google.com/p/metadata-extractor/
*/
package com.drew.metadata.jfif;
import com.drew.lang.ByteArrayReader;
import com.drew.metadata.Metadata;
import com.drew.metadata.MetadataReader;
import com.drew.metadata.Tag;
import org.junit.Assert;
import org.junit.Test;
/**
* @author Drew Noakes http://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 MetadataReader reader = new JfifReader();
reader.extract(new ByteArrayReader(jfifData), metadata);
Assert.assertEquals(1, metadata.getDirectoryCount());
JfifDirectory directory = metadata.getDirectory(JfifDirectory.class);
Assert.assertNotNull(directory);
Assert.assertFalse(directory.getErrors().toString(), directory.hasErrors());
Tag[] tags = directory.getTags().toArray(new Tag[directory.getTagCount()]);
Assert.assertEquals(4, tags.length);
Assert.assertEquals(JfifDirectory.TAG_JFIF_VERSION, tags[0].getTagType());
Assert.assertEquals(0x0102, directory.getInt(tags[0].getTagType()));
Assert.assertEquals(JfifDirectory.TAG_JFIF_UNITS, tags[1].getTagType());
Assert.assertEquals(1, directory.getInt(tags[1].getTagType()));
Assert.assertEquals(JfifDirectory.TAG_JFIF_RESX, tags[2].getTagType());
Assert.assertEquals(108, directory.getInt(tags[2].getTagType()));
Assert.assertEquals(JfifDirectory.TAG_JFIF_RESY, tags[3].getTagType());
Assert.assertEquals(108, directory.getInt(tags[3].getTagType()));
}
}