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/*
* Copyright (C) 2012 The Android Open Source Project
*
* 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.
*/
package com.android.gallery3d.exif;
import junit.framework.TestCase;
import java.nio.ByteOrder;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class ExifDataTest extends TestCase {
Map<Integer, ExifTag> mTestTags;
ExifInterface mInterface;
private ExifTag mVersionTag;
private ExifTag mGpsVersionTag;
private ExifTag mModelTag;
private ExifTag mDateTimeTag;
private ExifTag mCompressionTag;
private ExifTag mThumbnailFormatTag;
private ExifTag mLongitudeTag;
private ExifTag mShutterTag;
private ExifTag mInteropIndex;
@Override
public void setUp() throws Exception {
super.setUp();
mInterface = new ExifInterface();
// TYPE_UNDEFINED with 4 components
mVersionTag = mInterface.buildTag(ExifInterface.TAG_EXIF_VERSION, new byte[] {
5, 4, 3, 2
});
// TYPE_UNSIGNED_BYTE with 4 components
mGpsVersionTag = mInterface.buildTag(ExifInterface.TAG_GPS_VERSION_ID, new byte[] {
6, 7, 8, 9
});
// TYPE ASCII with arbitrary length
mModelTag = mInterface.buildTag(ExifInterface.TAG_MODEL, "helloworld");
// TYPE_ASCII with 20 components
mDateTimeTag = mInterface.buildTag(ExifInterface.TAG_DATE_TIME, "2013:02:11 20:20:20");
// TYPE_UNSIGNED_SHORT with 1 components
mCompressionTag = mInterface.buildTag(ExifInterface.TAG_COMPRESSION, 100);
// TYPE_UNSIGNED_LONG with 1 components
mThumbnailFormatTag =
mInterface.buildTag(ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT, 100);
// TYPE_UNSIGNED_RATIONAL with 3 components
mLongitudeTag = mInterface.buildTag(ExifInterface.TAG_GPS_LONGITUDE, new Rational[] {
new Rational(2, 2), new Rational(11, 11),
new Rational(102, 102)
});
// TYPE_RATIONAL with 1 components
mShutterTag = mInterface
.buildTag(ExifInterface.TAG_SHUTTER_SPEED_VALUE, new Rational(4, 6));
// TYPE_ASCII with arbitrary length
mInteropIndex = mInterface.buildTag(ExifInterface.TAG_INTEROPERABILITY_INDEX, "foo");
mTestTags = new HashMap<Integer, ExifTag>();
mTestTags.put(ExifInterface.TAG_EXIF_VERSION, mVersionTag);
mTestTags.put(ExifInterface.TAG_GPS_VERSION_ID, mGpsVersionTag);
mTestTags.put(ExifInterface.TAG_MODEL, mModelTag);
mTestTags.put(ExifInterface.TAG_DATE_TIME, mDateTimeTag);
mTestTags.put(ExifInterface.TAG_COMPRESSION, mCompressionTag);
mTestTags.put(ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT, mThumbnailFormatTag);
mTestTags.put(ExifInterface.TAG_GPS_LONGITUDE, mLongitudeTag);
mTestTags.put(ExifInterface.TAG_SHUTTER_SPEED_VALUE, mShutterTag);
mTestTags.put(ExifInterface.TAG_INTEROPERABILITY_INDEX, mInteropIndex);
}
@Override
public void tearDown() throws Exception {
super.tearDown();
mInterface = null;
mTestTags = null;
}
public void testAddTag() {
ExifData exifData = new ExifData(ByteOrder.BIG_ENDIAN);
// Add all test tags
for (ExifTag t : mTestTags.values()) {
assertTrue(exifData.addTag(t) == null);
}
// Make sure no initial thumbnails
assertFalse(exifData.hasCompressedThumbnail());
assertFalse(exifData.hasUncompressedStrip());
// Check that we can set thumbnails
exifData.setStripBytes(3, new byte[] {
1, 2, 3, 4, 5
});
assertTrue(exifData.hasUncompressedStrip());
exifData.setCompressedThumbnail(new byte[] {
1
});
assertTrue(exifData.hasCompressedThumbnail());
// Check that we can clear thumbnails
exifData.clearThumbnailAndStrips();
assertFalse(exifData.hasCompressedThumbnail());
assertFalse(exifData.hasUncompressedStrip());
// Make sure ifds exist
for (int i : IfdData.getIfds()) {
assertTrue(exifData.getIfdData(i) != null);
}
// Get all test tags
List<ExifTag> allTags = exifData.getAllTags();
assertTrue(allTags != null);
// Make sure all test tags are in data
for (ExifTag t : mTestTags.values()) {
boolean check = false;
for (ExifTag i : allTags) {
if (t.equals(i)) {
check = true;
break;
}
}
assertTrue(check);
}
// Check if getting tags for a tid works
List<ExifTag> tidTags = exifData.getAllTagsForTagId(ExifInterface
.getTrueTagKey(ExifInterface.TAG_SHUTTER_SPEED_VALUE));
assertTrue(tidTags.size() == 1);
assertTrue(tidTags.get(0).equals(mShutterTag));
// Check if getting tags for an ifd works
List<ExifTag> ifdTags = exifData.getAllTagsForIfd(IfdId.TYPE_IFD_INTEROPERABILITY);
assertTrue(ifdTags.size() == 1);
assertTrue(ifdTags.get(0).equals(mInteropIndex));
}
}
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