yaffs.net Git - yaffs-website/blob - vendor/lsolesen/pel/test/image-tests/OlympusC5050zTest.php

   1 <?php
   2
   3 /*
   4  * PEL: PHP Exif Library. A library with support for reading and
   5  * writing all Exif headers in JPEG and TIFF images using PHP.
   6  *
   7  * Copyright (C) 2005, 2006 Martin Geisler.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program in the file COPYING; if not, write to the
  21  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  22  * Boston, MA 02110-1301 USA
  23  */
  24
  25 use lsolesen\pel\Pel;
  26 use lsolesen\pel\PelJpeg;
  27
  28 class OlympusC5050zTest extends \PHPUnit_Framework_TestCase
  29 {
  30     public function testRead()
  31     {
  32         Pel::clearExceptions();
  33         Pel::setStrictParsing(false);
  34         $jpeg = new PelJpeg(dirname(__FILE__) . '/olympus-c5050z.jpg');
  35
  36         $exif = $jpeg->getExif();
  37         $this->assertInstanceOf('lsolesen\pel\PelExif', $exif);
  38
  39         $tiff = $exif->getTiff();
  40         $this->assertInstanceOf('lsolesen\pel\PelTiff', $tiff);
  41
  42         /* The first IFD. */
  43         $ifd0 = $tiff->getIfd();
  44         $this->assertInstanceOf('lsolesen\pel\PelIfd', $ifd0);
  45
  46         /* Start of IDF $ifd0. */
  47         $this->assertEquals(count($ifd0->getEntries()), 11);
  48
  49         $entry = $ifd0->getEntry(270); // ImageDescription
  50         $this->assertInstanceOf('lsolesen\pel\PelEntryAscii', $entry);
  51         $this->assertEquals($entry->getValue(), 'OLYMPUS DIGITAL CAMERA         ');
  52         $this->assertEquals($entry->getText(), 'OLYMPUS DIGITAL CAMERA         ');
  53
  54         $entry = $ifd0->getEntry(271); // Make
  55         $this->assertInstanceOf('lsolesen\pel\PelEntryAscii', $entry);
  56         $this->assertEquals($entry->getValue(), 'OLYMPUS OPTICAL CO.,LTD');
  57         $this->assertEquals($entry->getText(), 'OLYMPUS OPTICAL CO.,LTD');
  58
  59         $entry = $ifd0->getEntry(272); // Model
  60         $this->assertInstanceOf('lsolesen\pel\PelEntryAscii', $entry);
  61         $this->assertEquals($entry->getValue(), 'C5050Z');
  62         $this->assertEquals($entry->getText(), 'C5050Z');
  63
  64         $entry = $ifd0->getEntry(274); // Orientation
  65         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
  66         $this->assertEquals($entry->getValue(), 1);
  67         $this->assertEquals($entry->getText(), 'top - left');
  68
  69         $entry = $ifd0->getEntry(282); // XResolution
  70         $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
  71         $this->assertEquals($entry->getValue(), array(
  72             0 => 72,
  73             1 => 1
  74         ));
  75         $this->assertEquals($entry->getText(), '72/1');
  76
  77         $entry = $ifd0->getEntry(283); // YResolution
  78         $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
  79         $this->assertEquals($entry->getValue(), array(
  80             0 => 72,
  81             1 => 1
  82         ));
  83         $this->assertEquals($entry->getText(), '72/1');
  84
  85         $entry = $ifd0->getEntry(296); // ResolutionUnit
  86         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
  87         $this->assertEquals($entry->getValue(), 2);
  88         $this->assertEquals($entry->getText(), 'Inch');
  89
  90         $entry = $ifd0->getEntry(305); // Software
  91         $this->assertInstanceOf('lsolesen\pel\PelEntryAscii', $entry);
  92         $this->assertEquals($entry->getValue(), 'v558-83');
  93         $this->assertEquals($entry->getText(), 'v558-83');
  94
  95         $entry = $ifd0->getEntry(306); // DateTime
  96         $this->assertInstanceOf('lsolesen\pel\PelEntryTime', $entry);
  97         $this->assertEquals($entry->getValue(), false);
  98         $this->assertEquals($entry->getText(), '0000:00:00 00:00:00');
  99
 100         $entry = $ifd0->getEntry(531); // YCbCrPositioning
 101         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 102         $this->assertEquals($entry->getValue(), 2);
 103         $this->assertEquals($entry->getText(), 'co-sited');
 104
 105         $entry = $ifd0->getEntry(50341); // PrintIM
 106         $this->assertInstanceOf('lsolesen\pel\PelEntryUndefined', $entry);
 107         $expected = "\x50\x72\x69\x6e\x74\x49\x4d\0\x30\x32\x35\x30\0\0\x14\0\x01\0\x14\0\x14\0\x02\0\x01\0\0\0\x03\0\x88\0\0\0\x07\0\0\0\0\0\x08\0\0\0\0\0\x09\0\0\0\0\0\x0a\0\0\0\0\0\x0b\0\xd0\0\0\0\x0c\0\0\0\0\0\x0d\0\0\0\0\0\x0e\0\xe8\0\0\0\0\x01\x01\0\0\0\x01\x01\xff\0\0\0\x02\x01\x83\0\0\0\x03\x01\x83\0\0\0\x04\x01\x80\0\0\0\x05\x01\x83\0\0\0\x06\x01\x83\0\0\0\x07\x01\x80\x80\x80\0\x10\x01\x80\0\0\0\x09\x11\0\0\x10\x27\0\0\x0b\x0f\0\0\x10\x27\0\0\x97\x05\0\0\x10\x27\0\0\xb0\x08\0\0\x10\x27\0\0\x01\x1c\0\0\x10\x27\0\0\x5e\x02\0\0\x10\x27\0\0\x8b\0\0\0\x10\x27\0\0\xcb\x03\0\0\x10\x27\0\0\xe5\x1b\0\0\x10\x27\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
 108         $this->assertEquals($entry->getValue(), $expected);
 109         $this->assertEquals($entry->getText(), '(undefined)');
 110
 111         /* Sub IFDs of $ifd0. */
 112         $this->assertEquals(count($ifd0->getSubIfds()), 1);
 113         $ifd0_0 = $ifd0->getSubIfd(2); // IFD Exif
 114         $this->assertInstanceOf('lsolesen\pel\PelIfd', $ifd0_0);
 115
 116         /* Start of IDF $ifd0_0. */
 117         $this->assertEquals(count($ifd0_0->getEntries()), 32);
 118
 119         $entry = $ifd0_0->getEntry(33434); // ExposureTime
 120         $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
 121         $this->assertEquals($entry->getValue(), array(
 122             0 => 10,
 123             1 => 40
 124         ));
 125         $this->assertEquals($entry->getText(), '1/4 sec.');
 126
 127         $entry = $ifd0_0->getEntry(33437); // FNumber
 128         $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
 129         $this->assertEquals($entry->getValue(), array(
 130             0 => 26,
 131             1 => 10
 132         ));
 133         $this->assertEquals($entry->getText(), 'f/2.6');
 134
 135         $entry = $ifd0_0->getEntry(34850); // ExposureProgram
 136         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 137         $this->assertEquals($entry->getValue(), 2);
 138         $this->assertEquals($entry->getText(), 'Normal program');
 139
 140         $entry = $ifd0_0->getEntry(34855); // ISOSpeedRatings
 141         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 142         $this->assertEquals($entry->getValue(), 64);
 143         $this->assertEquals($entry->getText(), '64');
 144
 145         $entry = $ifd0_0->getEntry(36864); // ExifVersion
 146         $this->assertInstanceOf('lsolesen\pel\PelEntryVersion', $entry);
 147         $this->assertEquals($entry->getValue(), 2.2);
 148         $this->assertEquals($entry->getText(), 'Exif Version 2.2');
 149
 150         $entry = $ifd0_0->getEntry(36867); // DateTimeOriginal
 151         $this->assertInstanceOf('lsolesen\pel\PelEntryTime', $entry);
 152         $this->assertEquals($entry->getValue(), false);
 153         $this->assertEquals($entry->getText(), '0000:00:00 00:00:00');
 154
 155         $entry = $ifd0_0->getEntry(36868); // DateTimeDigitized
 156         $this->assertInstanceOf('lsolesen\pel\PelEntryTime', $entry);
 157         $this->assertEquals($entry->getValue(), false);
 158         $this->assertEquals($entry->getText(), '0000:00:00 00:00:00');
 159
 160         $entry = $ifd0_0->getEntry(37121); // ComponentsConfiguration
 161         $this->assertInstanceOf('lsolesen\pel\PelEntryUndefined', $entry);
 162         $this->assertEquals($entry->getValue(), "\x01\x02\x03\0");
 163         $this->assertEquals($entry->getText(), 'Y Cb Cr -');
 164
 165         $entry = $ifd0_0->getEntry(37122); // CompressedBitsPerPixel
 166         $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
 167         $this->assertEquals($entry->getValue(), array(
 168             0 => 2,
 169             1 => 1
 170         ));
 171         $this->assertEquals($entry->getText(), '2/1');
 172
 173         $entry = $ifd0_0->getEntry(37380); // ExposureBiasValue
 174         $this->assertInstanceOf('lsolesen\pel\PelEntrySRational', $entry);
 175         $this->assertEquals($entry->getValue(), array(
 176             0 => 0,
 177             1 => 10
 178         ));
 179         $this->assertEquals($entry->getText(), '0.0');
 180
 181         $entry = $ifd0_0->getEntry(37381); // MaxApertureValue
 182         $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
 183         $this->assertEquals($entry->getValue(), array(
 184             0 => 28,
 185             1 => 10
 186         ));
 187         $this->assertEquals($entry->getText(), '28/10');
 188
 189         $entry = $ifd0_0->getEntry(37383); // MeteringMode
 190         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 191         $this->assertEquals($entry->getValue(), 5);
 192         $this->assertEquals($entry->getText(), 'Pattern');
 193
 194         $entry = $ifd0_0->getEntry(37384); // LightSource
 195         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 196         $this->assertEquals($entry->getValue(), 0);
 197         $this->assertEquals($entry->getText(), 'Unknown');
 198
 199         $entry = $ifd0_0->getEntry(37385); // Flash
 200         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 201         $this->assertEquals($entry->getValue(), 16);
 202         $this->assertEquals($entry->getText(), 'Flash did not fire, compulsory flash mode.');
 203
 204         $entry = $ifd0_0->getEntry(37386); // FocalLength
 205         $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
 206         $this->assertEquals($entry->getValue(), array(
 207             0 => 213,
 208             1 => 10
 209         ));
 210         $this->assertEquals($entry->getText(), '21.3 mm');
 211
 212         $entry = $ifd0_0->getEntry(37500); // MakerNote
 213         $this->assertInstanceOf('lsolesen\pel\PelEntryUndefined', $entry);
 214         $expected = "\x4f\x4c\x59\x4d\x50\0\x01\0\x10\0\0\x02\x04\0\x03\0\0\0\xd6\x05\0\0\x01\x02\x03\0\x01\0\0\0\x01\0\0\0\x02\x02\x03\0\x01\0\0\0\0\0\0\0\x03\x02\x03\0\x01\0\0\0\0\0\0\0\x04\x02\x05\0\x01\0\0\0\xe2\x05\0\0\x05\x02\x05\0\x01\0\0\0\xea\x05\0\0\x06\x02\x08\0\x06\0\0\0\xf2\x05\0\0\x07\x02\x02\0\x08\0\0\0\xfe\x05\0\0\x08\x02\x02\0\x34\0\0\0\x06\x06\0\0\x09\x02\x07\0\x20\0\0\0\x42\x06\0\0\0\x03\x03\0\x01\0\0\0\0\0\0\0\x01\x03\x03\0\x01\0\0\0\0\0\0\0\x02\x03\x03\0\x01\0\0\0\x01\0\0\0\x03\x03\x03\0\x01\0\0\0\0\0\0\0\x04\x03\x03\0\x01\0\0\0\0\0\0\0\0\x0f\x07\0\xfe\0\0\0\x62\x06\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x64\0\0\0\x64\0\0\0\x88\x03\0\0\x64\0\0\0\x03\0\x0d\0\x12\0\x19\0\x38\0\x49\0\x53\x58\x35\x35\x38\0\0\0\x5b\x70\x69\x63\x74\x75\x72\x65\x49\x6e\x66\x6f\x5d\x20\x52\x65\x73\x6f\x6c\x75\x74\x69\x6f\x6e\x3d\x31\x20\x5b\x43\x61\x6d\x65\x72\x61\x20\x49\x6e\x66\x6f\x5d\x20\x54\x79\x70\x65\x3d\x53\x58\x35\x35\x38\0\0\0\0\0\0\0\0\0\x4f\x4c\x59\x4d\x50\x55\x53\x20\x44\x49\x47\x49\x54\x41\x4c\x20\x43\x41\x4d\x45\x52\x41\0\xff\xff\xff\xff\xff\xff\xff\xff\xff\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x31\xcf\x13\0\0\0\0\x01\xe8\x48\0\0\x03\xb5\0\x01\xe5\xd3\0\0\x14\x55\0\0\x14\x55\x01\0\x1f\0\x0b\xa9\0\x12\x03\x31\x01\0\x01\xc0\x01\xe6\x01\xfc\x01\xe9\xd0\0\0\xe8\x11\x4a\0\0\x14\x14\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x0b\x1c\0\0\x40\0\x0b\x19\0\0\0\x67\0\0\0\x67\0\xe8\x16\x49\0\0\0\x12\0\x03\xcb\xa6\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x19\x61\x12\x31\0\x76\x01\x3f\x01\xcf\x02\x59\x01\x15\x02\0\x02\x9c\0\x30\x0b\x95\x0d\x14\x02\0\0\xc9\x03\x8b\x02\0\x01\x6e\x03\x93\x03\xed\x01\x72\x01\0\xd0\x5b\0\x0c\0\x0c\0\x02\x03\x52\0\x01\0\0\0\0\0\x09\0\x32\0\x0a\0\0\0\x01\0\x48\0\x87\0\x64\0\x78\x0e\x0e\x0e\x0e\x11\x11\x11\x11\0\0\0\0\0\0\x14\x1d\x0e\x17\0\0\x0a\0\x1b\0\0\x1a\0\0\0\0\x01\0\x32\x0f\x42\x40\x0f\0\0\x64\x2a\x20\0\0";
 215         $this->assertEquals($entry->getValue(), $expected);
 216         $this->assertEquals($entry->getText(), '600 bytes unknown MakerNote data');
 217
 218         $entry = $ifd0_0->getEntry(37510); // UserComment
 219         $this->assertInstanceOf('lsolesen\pel\PelEntryUserComment', $entry);
 220         $this->assertEquals($entry->getValue(), '                                                                                                                     ');
 221         $this->assertEquals($entry->getText(), '                                                                                                                     ');
 222
 223         $entry = $ifd0_0->getEntry(40960); // FlashPixVersion
 224         $this->assertInstanceOf('lsolesen\pel\PelEntryVersion', $entry);
 225         $this->assertEquals($entry->getValue(), 1);
 226         $this->assertEquals($entry->getText(), 'FlashPix Version 1.0');
 227
 228         $entry = $ifd0_0->getEntry(40961); // ColorSpace
 229         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 230         $this->assertEquals($entry->getValue(), 1);
 231         $this->assertEquals($entry->getText(), 'sRGB');
 232
 233         $entry = $ifd0_0->getEntry(40962); // PixelXDimension
 234         $this->assertInstanceOf('lsolesen\pel\PelEntryLong', $entry);
 235         $this->assertEquals($entry->getValue(), 640);
 236         $this->assertEquals($entry->getText(), '640');
 237
 238         $entry = $ifd0_0->getEntry(40963); // PixelYDimension
 239         $this->assertInstanceOf('lsolesen\pel\PelEntryLong', $entry);
 240         $this->assertEquals($entry->getValue(), 480);
 241         $this->assertEquals($entry->getText(), '480');
 242
 243         $entry = $ifd0_0->getEntry(41728); // FileSource
 244         $this->assertInstanceOf('lsolesen\pel\PelEntryUndefined', $entry);
 245         $this->assertEquals($entry->getValue(), "\x03");
 246         $this->assertEquals($entry->getText(), 'DSC');
 247
 248         $entry = $ifd0_0->getEntry(41729); // SceneType
 249         $this->assertInstanceOf('lsolesen\pel\PelEntryUndefined', $entry);
 250         $this->assertEquals($entry->getValue(), "\x01");
 251         $this->assertEquals($entry->getText(), 'Directly photographed');
 252
 253         $entry = $ifd0_0->getEntry(41985); // CustomRendered
 254         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 255         $this->assertEquals($entry->getValue(), 0);
 256         $this->assertEquals($entry->getText(), 'Normal process');
 257
 258         $entry = $ifd0_0->getEntry(41986); // ExposureMode
 259         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 260         $this->assertEquals($entry->getValue(), 0);
 261         $this->assertEquals($entry->getText(), 'Auto exposure');
 262
 263         $entry = $ifd0_0->getEntry(41987); // WhiteBalance
 264         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 265         $this->assertEquals($entry->getValue(), 1);
 266         $this->assertEquals($entry->getText(), 'Manual white balance');
 267
 268         $entry = $ifd0_0->getEntry(41988); // DigitalZoomRatio
 269         $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
 270         $this->assertEquals($entry->getValue(), array(
 271             0 => 0,
 272             1 => 100
 273         ));
 274         $this->assertEquals($entry->getText(), '0/100');
 275
 276         $entry = $ifd0_0->getEntry(41990); // SceneCaptureType
 277         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 278         $this->assertEquals($entry->getValue(), 0);
 279         $this->assertEquals($entry->getText(), 'Standard');
 280
 281         $entry = $ifd0_0->getEntry(41991); // GainControl
 282         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 283         $this->assertEquals($entry->getValue(), 0);
 284         $this->assertEquals($entry->getText(), 'Normal');
 285
 286         $entry = $ifd0_0->getEntry(41992); // Contrast
 287         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 288         $this->assertEquals($entry->getValue(), 0);
 289         $this->assertEquals($entry->getText(), 'Normal');
 290
 291         $entry = $ifd0_0->getEntry(41993); // Saturation
 292         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 293         $this->assertEquals($entry->getValue(), 0);
 294         $this->assertEquals($entry->getText(), 'Normal');
 295
 296         $entry = $ifd0_0->getEntry(41994); // Sharpness
 297         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 298         $this->assertEquals($entry->getValue(), 0);
 299         $this->assertEquals($entry->getText(), 'Normal');
 300
 301         /* Sub IFDs of $ifd0_0. */
 302         $this->assertEquals(count($ifd0_0->getSubIfds()), 1);
 303         $ifd0_0_0 = $ifd0_0->getSubIfd(4); // IFD Interoperability
 304         $this->assertInstanceOf('lsolesen\pel\PelIfd', $ifd0_0_0);
 305
 306         /* Start of IDF $ifd0_0_0. */
 307         $this->assertEquals(count($ifd0_0_0->getEntries()), 2);
 308
 309         $entry = $ifd0_0_0->getEntry(1); // InteroperabilityIndex
 310         $this->assertInstanceOf('lsolesen\pel\PelEntryAscii', $entry);
 311         $this->assertEquals($entry->getValue(), 'R98');
 312         $this->assertEquals($entry->getText(), 'R98');
 313
 314         $entry = $ifd0_0_0->getEntry(2); // InteroperabilityVersion
 315         $this->assertInstanceOf('lsolesen\pel\PelEntryVersion', $entry);
 316         $this->assertEquals($entry->getValue(), 1);
 317         $this->assertEquals($entry->getText(), 'Interoperability Version 1.0');
 318
 319         /* Sub IFDs of $ifd0_0_0. */
 320         $this->assertEquals(count($ifd0_0_0->getSubIfds()), 0);
 321
 322         $this->assertEquals($ifd0_0_0->getThumbnailData(), '');
 323
 324         /* Next IFD. */
 325         $ifd0_0_1 = $ifd0_0_0->getNextIfd();
 326         $this->assertNull($ifd0_0_1);
 327         /* End of IFD $ifd0_0_0. */
 328
 329         $this->assertEquals($ifd0_0->getThumbnailData(), '');
 330
 331         /* Next IFD. */
 332         $ifd0_1 = $ifd0_0->getNextIfd();
 333         $this->assertNull($ifd0_1);
 334         /* End of IFD $ifd0_0. */
 335
 336         $this->assertEquals($ifd0->getThumbnailData(), '');
 337
 338         /* Next IFD. */
 339         $ifd1 = $ifd0->getNextIfd();
 340         $this->assertInstanceOf('lsolesen\pel\PelIfd', $ifd1);
 341         /* End of IFD $ifd0. */
 342
 343         /* Start of IDF $ifd1. */
 344         $this->assertEquals(count($ifd1->getEntries()), 4);
 345
 346         $entry = $ifd1->getEntry(259); // Compression
 347         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 348         $this->assertEquals($entry->getValue(), 6);
 349         $this->assertEquals($entry->getText(), 'JPEG compression');
 350
 351         $entry = $ifd1->getEntry(282); // XResolution
 352         $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
 353         $this->assertEquals($entry->getValue(), array(
 354             0 => 72,
 355             1 => 1
 356         ));
 357         $this->assertEquals($entry->getText(), '72/1');
 358
 359         $entry = $ifd1->getEntry(283); // YResolution
 360         $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
 361         $this->assertEquals($entry->getValue(), array(
 362             0 => 72,
 363             1 => 1
 364         ));
 365         $this->assertEquals($entry->getText(), '72/1');
 366
 367         $entry = $ifd1->getEntry(296); // ResolutionUnit
 368         $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
 369         $this->assertEquals($entry->getValue(), 2);
 370         $this->assertEquals($entry->getText(), 'Inch');
 371
 372         /* Sub IFDs of $ifd1. */
 373         $this->assertEquals(count($ifd1->getSubIfds()), 0);
 374
 375         $thumb_data = file_get_contents(dirname(__FILE__) . '/olympus-c5050z-thumb.jpg');
 376         $this->assertEquals($ifd1->getThumbnailData(), $thumb_data);
 377
 378         /* Next IFD. */
 379         $ifd2 = $ifd1->getNextIfd();
 380         $this->assertNull($ifd2);
 381         /* End of IFD $ifd1. */
 382
 383         $this->assertTrue(count(Pel::getExceptions()) == 0);
 384     }
 385 }