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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.metadata.exif.makernotes.CanonMakernoteDescriptor;
import com.drew.metadata.exif.makernotes.CanonMakernoteDirectory;
import org.junit.Test;
import static com.drew.metadata.exif.makernotes.CanonMakernoteDirectory.*;
import static org.junit.Assert.assertEquals;
/**
* @author Drew Noakes https://drewnoakes.com
*/
public class CanonMakernoteDescriptorTest
{
@Test
public void testGetFlashBiasDescription() throws Exception
{
CanonMakernoteDirectory directory = new CanonMakernoteDirectory();
CanonMakernoteDescriptor descriptor = new CanonMakernoteDescriptor(directory);
// set and check values
directory.setInt(FocalLength.TAG_FLASH_BIAS, 0xFFC0);
assertEquals("-2.0 EV", descriptor.getDescription(FocalLength.TAG_FLASH_BIAS));
directory.setInt(FocalLength.TAG_FLASH_BIAS, 0xffd4);
assertEquals("-1.375 EV", descriptor.getDescription(FocalLength.TAG_FLASH_BIAS));
directory.setInt(FocalLength.TAG_FLASH_BIAS, 0x0000);
assertEquals("0.0 EV", descriptor.getDescription(FocalLength.TAG_FLASH_BIAS));
directory.setInt(FocalLength.TAG_FLASH_BIAS, 0x000c);
assertEquals("0.375 EV", descriptor.getDescription(FocalLength.TAG_FLASH_BIAS));
directory.setInt(FocalLength.TAG_FLASH_BIAS, 0x0010);
assertEquals("0.5 EV", descriptor.getDescription(FocalLength.TAG_FLASH_BIAS));
directory.setInt(FocalLength.TAG_FLASH_BIAS, 0x0014);
assertEquals("0.625 EV", descriptor.getDescription(FocalLength.TAG_FLASH_BIAS));
directory.setInt(FocalLength.TAG_FLASH_BIAS, 0x0020);
assertEquals("1.0 EV", descriptor.getDescription(FocalLength.TAG_FLASH_BIAS));
directory.setInt(FocalLength.TAG_FLASH_BIAS, 0x0030);
assertEquals("1.5 EV", descriptor.getDescription(FocalLength.TAG_FLASH_BIAS));
directory.setInt(FocalLength.TAG_FLASH_BIAS, 0x0034);
assertEquals("1.625 EV", descriptor.getDescription(FocalLength.TAG_FLASH_BIAS));
directory.setInt(FocalLength.TAG_FLASH_BIAS, 0x0040);
assertEquals("2.0 EV", descriptor.getDescription(FocalLength.TAG_FLASH_BIAS));
}
}
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