<?php

/*
 * PEL: PHP Exif Library. A library with support for reading and
 * writing all Exif headers in JPEG and TIFF images using PHP.
 *
 * Copyright (C) 2005, 2006 Martin Geisler.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program in the file COPYING; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA 02110-1301 USA
 */

use lsolesen\pel\Pel;
use lsolesen\pel\PelJpeg;

class CanonPowershotS60Test extends \PHPUnit_Framework_TestCase
{
    public function testRead()
    {
        Pel::clearExceptions();
        Pel::setStrictParsing(false);
        $jpeg = new PelJpeg(dirname(__FILE__) . '/canon-powershot-s60.jpg');

        $exif = $jpeg->getExif();
        $this->assertInstanceOf('lsolesen\pel\PelExif', $exif);

        $tiff = $exif->getTiff();
        $this->assertInstanceOf('lsolesen\pel\PelTiff', $tiff);

        /* The first IFD. */
        $ifd0 = $tiff->getIfd();
        $this->assertInstanceOf('lsolesen\pel\PelIfd', $ifd0);

        /* Start of IDF $ifd0. */
        $this->assertEquals(count($ifd0->getEntries()), 8);

        $entry = $ifd0->getEntry(271); // Make
        $this->assertInstanceOf('lsolesen\pel\PelEntryAscii', $entry);
        $this->assertEquals($entry->getValue(), 'Canon');
        $this->assertEquals($entry->getText(), 'Canon');

        $entry = $ifd0->getEntry(272); // Model
        $this->assertInstanceOf('lsolesen\pel\PelEntryAscii', $entry);
        $this->assertEquals($entry->getValue(), 'Canon PowerShot S60');
        $this->assertEquals($entry->getText(), 'Canon PowerShot S60');

        $entry = $ifd0->getEntry(274); // Orientation
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 1);
        $this->assertEquals($entry->getText(), 'top - left');

        $entry = $ifd0->getEntry(282); // XResolution
        $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 180,
            1 => 1
        ));
        $this->assertEquals($entry->getText(), '180/1');

        $entry = $ifd0->getEntry(283); // YResolution
        $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 180,
            1 => 1
        ));
        $this->assertEquals($entry->getText(), '180/1');

        $entry = $ifd0->getEntry(296); // ResolutionUnit
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 2);
        $this->assertEquals($entry->getText(), 'Inch');

        $entry = $ifd0->getEntry(306); // DateTime
        $this->assertInstanceOf('lsolesen\pel\PelEntryTime', $entry);
        $this->assertEquals($entry->getValue(), 1097316018);
        $this->assertEquals($entry->getText(), '2004:10:09 10:00:18');

        $entry = $ifd0->getEntry(531); // YCbCrPositioning
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 1);
        $this->assertEquals($entry->getText(), 'centered');

        /* Sub IFDs of $ifd0. */
        $this->assertEquals(count($ifd0->getSubIfds()), 1);
        $ifd0_0 = $ifd0->getSubIfd(2); // IFD Exif
        $this->assertInstanceOf('lsolesen\pel\PelIfd', $ifd0_0);

        /* Start of IDF $ifd0_0. */
        $this->assertEquals(count($ifd0_0->getEntries()), 30);

        $entry = $ifd0_0->getEntry(33434); // ExposureTime
        $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 1,
            1 => 8
        ));
        $this->assertEquals($entry->getText(), '1/8 sec.');

        $entry = $ifd0_0->getEntry(33437); // FNumber
        $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 53,
            1 => 10
        ));
        $this->assertEquals($entry->getText(), 'f/5.3');

        $entry = $ifd0_0->getEntry(36864); // ExifVersion
        $this->assertInstanceOf('lsolesen\pel\PelEntryVersion', $entry);
        $this->assertEquals($entry->getValue(), 2.2);
        $this->assertEquals($entry->getText(), 'Exif Version 2.2');

        $entry = $ifd0_0->getEntry(36867); // DateTimeOriginal
        $this->assertInstanceOf('lsolesen\pel\PelEntryTime', $entry);
        $this->assertEquals($entry->getValue(), 1097316018);
        $this->assertEquals($entry->getText(), '2004:10:09 10:00:18');

        $entry = $ifd0_0->getEntry(36868); // DateTimeDigitized
        $this->assertInstanceOf('lsolesen\pel\PelEntryTime', $entry);
        $this->assertEquals($entry->getValue(), 1097316018);
        $this->assertEquals($entry->getText(), '2004:10:09 10:00:18');

        $entry = $ifd0_0->getEntry(37121); // ComponentsConfiguration
        $this->assertInstanceOf('lsolesen\pel\PelEntryUndefined', $entry);
        $this->assertEquals($entry->getValue(), "\x01\x02\x03\0");
        $this->assertEquals($entry->getText(), 'Y Cb Cr -');

        $entry = $ifd0_0->getEntry(37122); // CompressedBitsPerPixel
        $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 2,
            1 => 1
        ));
        $this->assertEquals($entry->getText(), '2/1');

        $entry = $ifd0_0->getEntry(37377); // ShutterSpeedValue
        $this->assertInstanceOf('lsolesen\pel\PelEntrySRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 96,
            1 => 32
        ));
        $this->assertEquals($entry->getText(), '96/32 sec. (APEX: 2)');

        $entry = $ifd0_0->getEntry(37378); // ApertureValue
        $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 154,
            1 => 32
        ));
        $this->assertEquals($entry->getText(), 'f/5.3');

        $entry = $ifd0_0->getEntry(37380); // ExposureBiasValue
        $this->assertInstanceOf('lsolesen\pel\PelEntrySRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 0,
            1 => 3
        ));
        $this->assertEquals($entry->getText(), '0.0');

        $entry = $ifd0_0->getEntry(37381); // MaxApertureValue
        $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 154,
            1 => 32
        ));
        $this->assertEquals($entry->getText(), '154/32');

        $entry = $ifd0_0->getEntry(37383); // MeteringMode
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 5);
        $this->assertEquals($entry->getText(), 'Pattern');

        $entry = $ifd0_0->getEntry(37385); // Flash
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 16);
        $this->assertEquals($entry->getText(), 'Flash did not fire, compulsory flash mode.');

        $entry = $ifd0_0->getEntry(37386); // FocalLength
        $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 662,
            1 => 32
        ));
        $this->assertEquals($entry->getText(), '20.7 mm');

        $entry = $ifd0_0->getEntry(37500); // MakerNote
        $this->assertInstanceOf('lsolesen\pel\PelEntryUndefined', $entry);
        $expected = "\x11\0\x01\0\x03\0\x2e\0\0\0\x80\x04\0\0\x02\0\x03\0\x04\0\0\0\xdc\x04\0\0\x03\0\x03\0\x04\0\0\0\xe4\x04\0\0\x04\0\x03\0\x22\0\0\0\xec\x04\0\0\0\0\x03\0\x06\0\0\0\x30\x05\0\0\0\0\x03\0\x04\0\0\0\x3c\x05\0\0\x12\0\x03\0\x1c\0\0\0\x44\x05\0\0\x13\0\x03\0\x04\0\0\0\x7c\x05\0\0\x06\0\x02\0\x20\0\0\0\x84\x05\0\0\x07\0\x02\0\x18\0\0\0\xa4\x05\0\0\x08\0\x04\0\x01\0\0\0\x69\x42\x0f\0\x09\0\x02\0\x20\0\0\0\xbc\x05\0\0\x10\0\x04\0\x01\0\0\0\0\0\x39\x01\0\0\x03\0\x05\0\0\0\xdc\x05\0\0\x18\0\x01\0\0\x01\0\0\xe6\x05\0\0\x19\0\x03\0\x01\0\0\0\x01\0\0\0\x0d\0\x03\0\x24\0\0\0\xe6\x06\0\0\0\0\0\0\x5c\0\x02\0\0\0\x02\0\0\0\0\0\0\0\x04\0\0\0\x01\0\x02\0\0\0\0\0\0\0\0\0\0\0\x0f\0\x03\0\x01\0\x01\x40\0\0\xff\x7f\xff\xff\x96\x02\xba\0\x20\0\x9d\0\xc0\0\xff\xff\0\0\0\0\0\0\0\0\0\0\xff\xff\x35\0\x20\x0a\x20\x0a\0\0\0\0\0\0\0\0\xff\x7f\xff\x7f\0\0\0\0\x02\0\x96\x02\x22\x01\xd9\0\0\0\0\0\0\0\0\0\x44\0\x20\0\x80\0\x36\0\x9a\0\x60\0\0\0\0\0\0\0\0\0\x08\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x01\0\x6a\0\0\0\x9d\0\x60\0\0\0\0\0\x01\0\xfa\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\x09\0\x09\0\x80\x02\xe0\x01\x20\x0a\xd8\0\xd3\x01\x27\0\x2c\xfe\0\0\xd4\x01\x2c\xfe\0\0\xd4\x01\x2c\xfe\0\0\xd4\x01\xd6\xff\xd6\xff\xd6\xff\0\0\0\0\0\0\x2a\0\x2a\0\x2a\0\x20\0\x05\0\0\0\0\0\0\0\0\0\x49\x4d\x47\x3a\x50\x6f\x77\x65\x72\x53\x68\x6f\x74\x20\x53\x36\x30\x20\x4a\x50\x45\x47\0\0\0\0\0\0\0\0\0\0\x46\x69\x72\x6d\x77\x61\x72\x65\x20\x56\x65\x72\x73\x69\x6f\x6e\x20\x31\x2e\x30\x30\0\0\0\0\x51\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\x0a\0\x02\0\x02\0\x80\x02\xe0\x01\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\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\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\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\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\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\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\x48\0\x09\0\x7f\x02\x7c\x02\x7c\x02\x7d\x02\x7a\x02\x80\x02\x7c\x02\x81\x02\x7a\x02\x44\0\0\0\0\0\x58\xff\x02\0\0\0\x0a\0\xfe\xff\0\0\x0a\0\x74\0\xc7\0\x25\0\x01\0\xdc\x03\0\0\0\0\0\0\0\0\0\0\x2a\0\0\0\0\0\x80\0\xe0\0\x49\x49\x2a\0\xae\x03\0\0";
        $this->assertEquals($entry->getValue(), $expected);
        $this->assertEquals($entry->getText(), '904 bytes unknown MakerNote data');

        $entry = $ifd0_0->getEntry(37510); // UserComment
        $this->assertInstanceOf('lsolesen\pel\PelEntryUserComment', $entry);
        $expected = "\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\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\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\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\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\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\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";
        $this->assertEquals($entry->getValue(), $expected);
        $expected = "\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\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\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\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\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\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\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";
        $this->assertEquals($entry->getText(), $expected);

        $entry = $ifd0_0->getEntry(40960); // FlashPixVersion
        $this->assertInstanceOf('lsolesen\pel\PelEntryVersion', $entry);
        $this->assertEquals($entry->getValue(), 1);
        $this->assertEquals($entry->getText(), 'FlashPix Version 1.0');

        $entry = $ifd0_0->getEntry(40961); // ColorSpace
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 1);
        $this->assertEquals($entry->getText(), 'sRGB');

        $entry = $ifd0_0->getEntry(40962); // PixelXDimension
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 640);
        $this->assertEquals($entry->getText(), '640');

        $entry = $ifd0_0->getEntry(40963); // PixelYDimension
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 480);
        $this->assertEquals($entry->getText(), '480');

        $entry = $ifd0_0->getEntry(41486); // FocalPlaneXResolution
        $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 640000,
            1 => 283
        ));
        $this->assertEquals($entry->getText(), '640000/283');

        $entry = $ifd0_0->getEntry(41487); // FocalPlaneYResolution
        $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 480000,
            1 => 212
        ));
        $this->assertEquals($entry->getText(), '480000/212');

        $entry = $ifd0_0->getEntry(41488); // FocalPlaneResolutionUnit
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 2);
        $this->assertEquals($entry->getText(), 'Inch');

        $entry = $ifd0_0->getEntry(41495); // SensingMethod
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 2);
        $this->assertEquals($entry->getText(), 'One-chip color area sensor');

        $entry = $ifd0_0->getEntry(41728); // FileSource
        $this->assertInstanceOf('lsolesen\pel\PelEntryUndefined', $entry);
        $this->assertEquals($entry->getValue(), "\x03");
        $this->assertEquals($entry->getText(), 'DSC');

        $entry = $ifd0_0->getEntry(41985); // CustomRendered
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 0);
        $this->assertEquals($entry->getText(), 'Normal process');

        $entry = $ifd0_0->getEntry(41986); // ExposureMode
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 0);
        $this->assertEquals($entry->getText(), 'Auto exposure');

        $entry = $ifd0_0->getEntry(41987); // WhiteBalance
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 0);
        $this->assertEquals($entry->getText(), 'Auto white balance');

        $entry = $ifd0_0->getEntry(41988); // DigitalZoomRatio
        $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 2592,
            1 => 2592
        ));
        $this->assertEquals($entry->getText(), '2592/2592');

        $entry = $ifd0_0->getEntry(41990); // SceneCaptureType
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 0);
        $this->assertEquals($entry->getText(), 'Standard');

        /* Sub IFDs of $ifd0_0. */
        $this->assertEquals(count($ifd0_0->getSubIfds()), 1);
        $ifd0_0_0 = $ifd0_0->getSubIfd(4); // IFD Interoperability
        $this->assertInstanceOf('lsolesen\pel\PelIfd', $ifd0_0_0);

        /* Start of IDF $ifd0_0_0. */
        $this->assertEquals(count($ifd0_0_0->getEntries()), 4);

        $entry = $ifd0_0_0->getEntry(1); // InteroperabilityIndex
        $this->assertInstanceOf('lsolesen\pel\PelEntryAscii', $entry);
        $this->assertEquals($entry->getValue(), 'R98');
        $this->assertEquals($entry->getText(), 'R98');

        $entry = $ifd0_0_0->getEntry(2); // InteroperabilityVersion
        $this->assertInstanceOf('lsolesen\pel\PelEntryVersion', $entry);
        $this->assertEquals($entry->getValue(), 1);
        $this->assertEquals($entry->getText(), 'Interoperability Version 1.0');

        $entry = $ifd0_0_0->getEntry(4097); // RelatedImageWidth
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 640);
        $this->assertEquals($entry->getText(), '640');

        $entry = $ifd0_0_0->getEntry(4098); // RelatedImageLength
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 480);
        $this->assertEquals($entry->getText(), '480');

        /* Sub IFDs of $ifd0_0_0. */
        $this->assertEquals(count($ifd0_0_0->getSubIfds()), 0);

        $this->assertEquals($ifd0_0_0->getThumbnailData(), '');

        /* Next IFD. */
        $ifd0_0_1 = $ifd0_0_0->getNextIfd();
        $this->assertNull($ifd0_0_1);
        /* End of IFD $ifd0_0_0. */

        $this->assertEquals($ifd0_0->getThumbnailData(), '');

        /* Next IFD. */
        $ifd0_1 = $ifd0_0->getNextIfd();
        $this->assertNull($ifd0_1);
        /* End of IFD $ifd0_0. */

        $this->assertEquals($ifd0->getThumbnailData(), '');

        /* Next IFD. */
        $ifd1 = $ifd0->getNextIfd();
        $this->assertInstanceOf('lsolesen\pel\PelIfd', $ifd1);
        /* End of IFD $ifd0. */

        /* Start of IDF $ifd1. */
        $this->assertEquals(count($ifd1->getEntries()), 4);

        $entry = $ifd1->getEntry(259); // Compression
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 6);
        $this->assertEquals($entry->getText(), 'JPEG compression');

        $entry = $ifd1->getEntry(282); // XResolution
        $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 180,
            1 => 1
        ));
        $this->assertEquals($entry->getText(), '180/1');

        $entry = $ifd1->getEntry(283); // YResolution
        $this->assertInstanceOf('lsolesen\pel\PelEntryRational', $entry);
        $this->assertEquals($entry->getValue(), array(
            0 => 180,
            1 => 1
        ));
        $this->assertEquals($entry->getText(), '180/1');

        $entry = $ifd1->getEntry(296); // ResolutionUnit
        $this->assertInstanceOf('lsolesen\pel\PelEntryShort', $entry);
        $this->assertEquals($entry->getValue(), 2);
        $this->assertEquals($entry->getText(), 'Inch');

        /* Sub IFDs of $ifd1. */
        $this->assertEquals(count($ifd1->getSubIfds()), 0);

        $thumb_data = file_get_contents(dirname(__FILE__) . '/canon-powershot-s60-thumb.jpg');
        $this->assertEquals($ifd1->getThumbnailData(), $thumb_data);

        /* Next IFD. */
        $ifd2 = $ifd1->getNextIfd();
        $this->assertNull($ifd2);
        /* End of IFD $ifd1. */

        $this->assertTrue(count(Pel::getExceptions()) == 0);
    }
}