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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.jpeg;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
/**
* @author Drew Noakes https://drewnoakes.com
*/
public class JpegDirectoryTest
{
private JpegDirectory _directory;
@Before
public void setUp()
{
_directory = new JpegDirectory();
}
@Test
public void testSetAndGetValue() throws Exception
{
_directory.setInt(123, 8);
assertEquals(8, _directory.getInt(123));
}
@Test
public void testGetComponent_NotAdded()
{
assertNull(_directory.getComponent(1));
}
// NOTE tests for individual tag values exist in JpegReaderTest.java
@Test
public void testGetImageWidth() throws Exception
{
_directory.setInt(JpegDirectory.TAG_IMAGE_WIDTH, 123);
assertEquals(123, _directory.getImageWidth());
}
@Test
public void testGetImageHeight() throws Exception
{
_directory.setInt(JpegDirectory.TAG_IMAGE_HEIGHT, 123);
assertEquals(123, _directory.getImageHeight());
}
@Test
public void testGetNumberOfComponents() throws Exception
{
_directory.setInt(JpegDirectory.TAG_NUMBER_OF_COMPONENTS, 3);
assertEquals(3, _directory.getNumberOfComponents());
assertEquals("3", _directory.getDescription(JpegDirectory.TAG_NUMBER_OF_COMPONENTS));
}
@Test
public void testGetComponent() throws Exception
{
JpegComponent component1 = new JpegComponent(1, 2, 3);
JpegComponent component2 = new JpegComponent(1, 2, 3);
JpegComponent component3 = new JpegComponent(1, 2, 3);
JpegComponent component4 = new JpegComponent(1, 2, 3);
_directory.setObject(JpegDirectory.TAG_COMPONENT_DATA_1, component1);
_directory.setObject(JpegDirectory.TAG_COMPONENT_DATA_2, component2);
_directory.setObject(JpegDirectory.TAG_COMPONENT_DATA_3, component3);
_directory.setObject(JpegDirectory.TAG_COMPONENT_DATA_4, component4);
// component numbers are zero-indexed for this method
assertSame(component1, _directory.getComponent(0));
assertSame(component2, _directory.getComponent(1));
assertSame(component3, _directory.getComponent(2));
assertSame(component4, _directory.getComponent(3));
}
}
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