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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.exif;
import com.drew.lang.Rational;
import org.junit.Test;
import static com.drew.metadata.exif.ExifIFD0Directory.*;
import static org.junit.Assert.assertEquals;
/**
* Unit tests for {@link ExifIFD0Descriptor}.
*
* @author Drew Noakes https://drewnoakes.com
*/
public class ExifIFD0DescriptorTest
{
@Test
public void testXResolutionDescription() throws Exception
{
ExifIFD0Directory directory = new ExifIFD0Directory();
directory.setRational(TAG_X_RESOLUTION, new Rational(72, 1));
// 2 is for 'Inch'
directory.setInt(TAG_RESOLUTION_UNIT, 2);
ExifIFD0Descriptor descriptor = new ExifIFD0Descriptor(directory);
assertEquals("72 dots per inch", descriptor.getDescription(TAG_X_RESOLUTION));
}
@Test
public void testYResolutionDescription() throws Exception
{
ExifIFD0Directory directory = new ExifIFD0Directory();
directory.setRational(TAG_Y_RESOLUTION, new Rational(50, 1));
// 3 is for 'cm'
directory.setInt(TAG_RESOLUTION_UNIT, 3);
ExifIFD0Descriptor descriptor = new ExifIFD0Descriptor(directory);
assertEquals("50 dots per cm", descriptor.getDescription(TAG_Y_RESOLUTION));
}
@Test
public void testWindowsXpFields() throws Exception
{
ExifIFD0Directory directory = ExifReaderTest.processBytes("Tests/Data/windowsXpFields.jpg.app1", ExifIFD0Directory.class);
assertEquals("Testing artist\0", directory.getString(TAG_WIN_AUTHOR, "UTF-16LE"));
assertEquals("Testing comments\0", directory.getString(TAG_WIN_COMMENT, "UTF-16LE"));
assertEquals("Testing keywords\0", directory.getString(TAG_WIN_KEYWORDS, "UTF-16LE"));
assertEquals("Testing subject\0", directory.getString(TAG_WIN_SUBJECT, "UTF-16LE"));
assertEquals("Testing title\0", directory.getString(TAG_WIN_TITLE, "UTF-16LE"));
ExifIFD0Descriptor descriptor = new ExifIFD0Descriptor(directory);
assertEquals("Testing artist", descriptor.getDescription(TAG_WIN_AUTHOR));
assertEquals("Testing comments", descriptor.getDescription(TAG_WIN_COMMENT));
assertEquals("Testing keywords", descriptor.getDescription(TAG_WIN_KEYWORDS));
assertEquals("Testing subject", descriptor.getDescription(TAG_WIN_SUBJECT));
assertEquals("Testing title", descriptor.getDescription(TAG_WIN_TITLE));
}
}
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