diff options
Diffstat (limited to 'tests/src/com/android/gallery3d/exif/ExifReaderTest.java')
| -rw-r--r-- | tests/src/com/android/gallery3d/exif/ExifReaderTest.java | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/tests/src/com/android/gallery3d/exif/ExifReaderTest.java b/tests/src/com/android/gallery3d/exif/ExifReaderTest.java new file mode 100644 index 000000000..4b5c02941 --- /dev/null +++ b/tests/src/com/android/gallery3d/exif/ExifReaderTest.java @@ -0,0 +1,165 @@ +/* + * 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 android.test.suitebuilder.annotation.MediumTest; + +import android.graphics.BitmapFactory; + +import java.util.List; +import java.util.Map; + +public class ExifReaderTest extends ExifXmlDataTestCase { + private static final String TAG = "ExifReaderTest"; + + private ExifInterface mInterface; + private List<Map<Short, List<String>>> mGroundTruth; + + @Override + public void setUp() throws Exception { + super.setUp(); + mGroundTruth = ExifXmlReader.readXml(getXmlParser()); + } + + public ExifReaderTest(int imgRes, int xmlRes) { + super(imgRes, xmlRes); + mInterface = new ExifInterface(); + } + + public ExifReaderTest(String imgPath, String xmlPath) { + super(imgPath, xmlPath); + mInterface = new ExifInterface(); + } + + @MediumTest + public void testRead() throws Exception { + try { + ExifReader reader = new ExifReader(mInterface); + ExifData exifData = reader.read(getImageInputStream()); + for (int i = 0; i < IfdId.TYPE_IFD_COUNT; i++) { + checkIfd(exifData.getIfdData(i), mGroundTruth.get(i)); + } + checkThumbnail(exifData); + } catch (Exception e) { + throw new Exception(getImageTitle(), e); + } + } + + private void checkThumbnail(ExifData exifData) { + Map<Short, List<String>> ifd1Truth = mGroundTruth.get(IfdId.TYPE_IFD_1); + + List<String> typeTagValue = ifd1Truth.get(ExifInterface.TAG_COMPRESSION); + if (typeTagValue == null) + return; + + IfdData ifd1 = exifData.getIfdData(IfdId.TYPE_IFD_1); + if (ifd1 == null) + fail(getImageTitle() + ": failed to find IFD1"); + + String typeTagTruth = typeTagValue.get(0); + + int type = (int) ifd1.getTag(ExifInterface.getTrueTagKey(ExifInterface.TAG_COMPRESSION)) + .getValueAt(0); + + if (String.valueOf(ExifInterface.Compression.JPEG).equals(typeTagTruth)) { + assertTrue(getImageTitle(), type == ExifInterface.Compression.JPEG); + assertTrue(getImageTitle(), exifData.hasCompressedThumbnail()); + byte[] thumbnail = exifData.getCompressedThumbnail(); + assertTrue(getImageTitle(), + BitmapFactory.decodeByteArray(thumbnail, 0, thumbnail.length) != null); + } else if (String.valueOf(ExifInterface.Compression.UNCOMPRESSION).equals(typeTagTruth)) { + assertTrue(getImageTitle(), type == ExifInterface.Compression.UNCOMPRESSION); + // Try to check the strip count with the formula provided by EXIF spec. + int planarType = ExifInterface.PlanarConfiguration.CHUNKY; + ExifTag planarTag = ifd1.getTag(ExifInterface + .getTrueTagKey(ExifInterface.TAG_PLANAR_CONFIGURATION)); + if (planarTag != null) { + planarType = (int) planarTag.getValueAt(0); + } + + if (!ifd1Truth.containsKey(ExifInterface.TAG_IMAGE_LENGTH) || + !ifd1Truth.containsKey(ExifInterface.TAG_ROWS_PER_STRIP)) { + return; + } + + ExifTag heightTag = ifd1.getTag(ExifInterface + .getTrueTagKey(ExifInterface.TAG_IMAGE_LENGTH)); + ExifTag rowPerStripTag = ifd1.getTag(ExifInterface + .getTrueTagKey(ExifInterface.TAG_ROWS_PER_STRIP)); + + // Fail the test if required tags are missing + if (heightTag == null || rowPerStripTag == null) { + fail(getImageTitle()); + } + + int imageLength = (int) heightTag.getValueAt(0); + int rowsPerStrip = (int) rowPerStripTag.getValueAt(0); + int stripCount = ifd1.getTag( + ExifInterface.getTrueTagKey(ExifInterface.TAG_STRIP_OFFSETS)) + .getComponentCount(); + + if (planarType == ExifInterface.PlanarConfiguration.CHUNKY) { + assertTrue(getImageTitle(), + stripCount == (imageLength + rowsPerStrip - 1) / rowsPerStrip); + } else { + if (!ifd1Truth.containsKey(ExifInterface.TAG_SAMPLES_PER_PIXEL)) { + return; + } + ExifTag samplePerPixelTag = ifd1.getTag(ExifInterface + .getTrueTagKey(ExifInterface.TAG_SAMPLES_PER_PIXEL)); + int samplePerPixel = (int) samplePerPixelTag.getValueAt(0); + assertTrue(getImageTitle(), + stripCount == + (imageLength + rowsPerStrip - 1) / rowsPerStrip * samplePerPixel); + } + + if (!ifd1Truth.containsKey(ExifInterface.TAG_STRIP_BYTE_COUNTS)) { + return; + } + ExifTag byteCountTag = ifd1.getTag(ExifInterface + .getTrueTagKey(ExifInterface.TAG_STRIP_BYTE_COUNTS)); + short byteCountDataType = byteCountTag.getDataType(); + for (int i = 0; i < stripCount; i++) { + if (byteCountDataType == ExifTag.TYPE_UNSIGNED_SHORT) { + assertEquals(getImageTitle(), + byteCountTag.getValueAt(i), exifData.getStrip(i).length); + } else { + assertEquals(getImageTitle(), + byteCountTag.getValueAt(i), exifData.getStrip(i).length); + } + } + } + } + + private void checkIfd(IfdData ifd, Map<Short, List<String>> ifdValue) { + if (ifd == null) { + assertEquals(getImageTitle(), 0, ifdValue.size()); + return; + } + ExifTag[] tags = ifd.getAllTags(); + for (ExifTag tag : tags) { + List<String> truth = ifdValue.get(tag.getTagId()); + assertNotNull(String.format("Tag %x, ", tag.getTagId()) + getImageTitle(), truth); + if (truth.contains(null)) { + continue; + } + assertTrue(String.format("Tag %x, ", tag.getTagId()) + getImageTitle(), + truth.contains(Util.tagValueToString(tag).trim())); + } + assertEquals(getImageTitle(), ifdValue.size(), tags.length); + } +} |