/*
* 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.exif;
import com.drew.imaging.ImageMetadataReader;
import com.drew.lang.Rational;
import com.drew.metadata.Metadata;
import org.junit.Assert;
import org.junit.Test;
import java.io.File;
/**
* JUnit test case for class ExifIFD0Descriptor.
*
* @author Drew Noakes http://drewnoakes.com
*/
public class ExifIFD0DescriptorTest
{
@Test
public void testXResolutionDescription() throws Exception
{
ExifIFD0Directory directory = new ExifIFD0Directory();
directory.setRational(ExifIFD0Directory.TAG_X_RESOLUTION, new Rational(72, 1));
// 2 is for 'Inch'
directory.setInt(ExifIFD0Directory.TAG_RESOLUTION_UNIT, 2);
ExifIFD0Descriptor descriptor = new ExifIFD0Descriptor(directory);
Assert.assertEquals("72 dots per inch", descriptor.getDescription(ExifIFD0Directory.TAG_X_RESOLUTION));
}
@Test
public void testYResolutionDescription() throws Exception
{
ExifIFD0Directory directory = new ExifIFD0Directory();
directory.setRational(ExifIFD0Directory.TAG_Y_RESOLUTION, new Rational(50, 1));
// 3 is for 'cm'
directory.setInt(ExifIFD0Directory.TAG_RESOLUTION_UNIT, 3);
ExifIFD0Descriptor descriptor = new ExifIFD0Descriptor(directory);
Assert.assertEquals("50 dots per cm", descriptor.getDescription(ExifIFD0Directory.TAG_Y_RESOLUTION));
}
@Test
public void testWindowsXpFields() throws Exception
{
String fileName = "Tests/com/drew/metadata/exif/windowsXpFields.jpg";
Metadata metadata = ImageMetadataReader.readMetadata(new File(fileName));
// Metadata metadata = new Metadata();
// final byte[] data = new JpegSegmentReader(new File(fileName)).readSegment(JpegSegmentReader.SEGMENT_APP1);
// Assert.assertNotNull(data);
// new ExifReader().extract(data, metadata);
ExifIFD0Directory directory = metadata.getDirectory(ExifIFD0Directory.class);
Assert.assertNotNull(directory);
Assert.assertEquals("Testing artist\0", directory.getString(ExifIFD0Directory.TAG_WIN_AUTHOR, "UTF-16LE"));
Assert.assertEquals("Testing comments\0", directory.getString(ExifIFD0Directory.TAG_WIN_COMMENT, "UTF-16LE"));
Assert.assertEquals("Testing keywords\0", directory.getString(ExifIFD0Directory.TAG_WIN_KEYWORDS, "UTF-16LE"));
Assert.assertEquals("Testing subject\0", directory.getString(ExifIFD0Directory.TAG_WIN_SUBJECT, "UTF-16LE"));
Assert.assertEquals("Testing title\0", directory.getString(ExifIFD0Directory.TAG_WIN_TITLE, "UTF-16LE"));
ExifIFD0Descriptor descriptor = new ExifIFD0Descriptor(directory);
Assert.assertEquals("Testing artist", descriptor.getDescription(ExifIFD0Directory.TAG_WIN_AUTHOR));
Assert.assertEquals("Testing comments", descriptor.getDescription(ExifIFD0Directory.TAG_WIN_COMMENT));
Assert.assertEquals("Testing keywords", descriptor.getDescription(ExifIFD0Directory.TAG_WIN_KEYWORDS));
Assert.assertEquals("Testing subject", descriptor.getDescription(ExifIFD0Directory.TAG_WIN_SUBJECT));
Assert.assertEquals("Testing title", descriptor.getDescription(ExifIFD0Directory.TAG_WIN_TITLE));
}
}