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diff --git a/vendor/lsolesen/pel/scripts/make-image-test.php b/vendor/lsolesen/pel/scripts/make-image-test.php
new file mode 100644
index 000000000..96e784b9b
--- /dev/null
+++ b/vendor/lsolesen/pel/scripts/make-image-test.php
@@ -0,0 +1,250 @@
+#!/usr/bin/php
+<?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
+ */
+
+/*
+ * This meta-program will generate a PHP script with unit tests for
+ * testing the image supplied on the command line. It works by
+ * loading the image, and traversing it, outputting test code at each
+ * step which will verify that a future parse of the image gives the
+ * same results.
+ */
+if (count($argv) != 2) {
+    exit("Usage: $argv[0] <image>\n");
+}
+
+$basename = substr($argv[1], 0, - strlen(strrchr($argv[1], '.')));
+$image_filename = $argv[1];
+$thumb_filename = $basename . '-thumb.jpg';
+$test_filename = $basename . '.php';
+$test_name = str_replace('-', '_', $basename);
+
+$indent = 0;
+
+function println($args)
+{
+    global $indent;
+    $args = func_get_args();
+    $str = array_shift($args);
+    vprintf(str_repeat('  ', $indent) . $str . "\n", $args);
+}
+
+function quote($str)
+{
+    return str_replace(array(
+        '\\',
+        '\''
+    ), array(
+        '\\\\',
+        '\\\''
+    ), $str);
+}
+
+function entryToTest($name, PelEntry $entry)
+{
+    println('$this->assertInstanceOf(\'%s\', %s);', $name, get_class($entry));
+
+    println('$this->assertEquals(%s->getValue(), %s);', $name, var_export($entry->getValue(), true));
+
+    println('$this->assertEquals(%s->getText(), \'%s\');', $name, quote($entry->getText()));
+}
+
+function ifdToTest($name, $number, PelIfd $ifd)
+{
+    println();
+    println('/* Start of IDF %s%d. */', $name, $number);
+
+    $entries = $ifd->getEntries();
+    println('$this->assertEquals(count(%s%d->getEntries()), %d);', $name, $number, count($entries));
+
+    foreach ($entries as $tag => $entry) {
+        println();
+        println('$entry = %s%d->getEntry(%d); // %s', $name, $number, $tag, PelTag::getName($ifd->getType(), $tag));
+        entryToTest('$entry', $entry);
+    }
+
+    println();
+    println('/* Sub IFDs of %s%d. */', $name, $number);
+
+    $sub_ifds = $ifd->getSubIfds();
+    println('$this->assertEquals(count(%s%d->getSubIfds()), %d);', $name, $number, count($sub_ifds));
+
+    $n = 0;
+    $sub_name = $name . $number . '_';
+    foreach ($sub_ifds as $type => $sub_ifd) {
+        println('%s%d = %s%d->getSubIfd(%d); // IFD %s', $sub_name, $n, $name, $number, $type, $sub_ifd->getName());
+        println('$this->assertInstanceOf(\'PelIfd\', %s%d);', $sub_name, $n);
+        ifdToTest($sub_name, $n, $sub_ifd);
+        $n ++;
+    }
+
+    println();
+
+    if (strlen($ifd->getThumbnailData()) > 0) {
+        println('$thumb_data = file_get_contents(dirname(__FILE__) .');
+        println('                                \'/%s\');', $GLOBALS['thumb_filename']);
+        println('$this->assertEquals(%s%d->getThumbnailData(), $thumb_data);', $name, $number);
+    } else {
+        println('$this->assertEquals(%s%d->getThumbnailData(), \'\');', $name, $number);
+    }
+
+    println();
+    println('/* Next IFD. */');
+
+    $next = $ifd->getNextIfd();
+    println('%s%d = %s%d->getNextIfd();', $name, $number + 1, $name, $number);
+
+    if ($next instanceof PelIfd) {
+        println('$this->assertInstanceOf(\'PelIfd\', %s%d);', $name, $number + 1);
+        println('/* End of IFD %s%d. */', $name, $number);
+
+        ifdToTest($name, $number + 1, $next);
+    } else {
+        println('$this->assertNull(%s%d);', $name, $number + 1);
+        println('/* End of IFD %s%d. */', $name, $number);
+    }
+}
+
+function tiffToTest($name, PelTiff $tiff)
+{
+    println();
+    println('/* The first IFD. */');
+    println('$ifd0 = %s->getIfd();', $name);
+    $ifd = $tiff->getIfd();
+    if ($ifd instanceof PelIfd) {
+        println('$this->assertInstanceOf(\'PelIfd\', $ifd0);');
+        ifdToTest('$ifd', 0, $ifd);
+    } else {
+        println('$this->assertNull($ifd0);');
+    }
+}
+
+function jpegContentToTest($name, PelJpegContent $content)
+{
+    if ($content instanceof PelExif) {
+        println('$this->assertInstanceOf(\'PelExif\', %s);', $name);
+        $tiff = $content->getTiff();
+        println();
+        println('$tiff = %s->getTiff();', $name);
+        if ($tiff instanceof PelTiff) {
+            println('$this->assertInstanceOf(\'PelTiff\', $tiff);');
+            tiffToTest('$tiff', $tiff);
+        }
+    }
+}
+
+function jpegToTest($name, PelJpeg $jpeg)
+{
+    $exif = $jpeg->getExif();
+    println('$exif = %s->getExif();', $name);
+    if ($exif == null) {
+        println('$this->assertNull($exif);');
+    } else {
+        jpegContentToTest('$exif', $exif);
+    }
+}
+
+/**
+ * convert a binary string to a sequence of hexadecimals
+ */
+function binstrencode($field)
+{
+    $field = bin2hex($field);
+    $field = chunk_split($field, 2, "\\x");
+    return str_replace('\x00', '\0', "\\x" . substr($field, 0, - 2));
+}
+
+/*
+ * All output is buffered so that we can dump it in $test_filename at
+ * the end.
+ */
+ob_start();
+
+println('<?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
+ */
+
+
+/* Autogenerated by the make-image-test.php script */
+
+use lsolesen\pel\PelJpeg;
+
+class %s extends \PHPUnit_Framework_TestCase
+{
+
+  function testRead()
+  {
+    Pel::clearExceptions();
+    Pel::setStrictParsing(false);
+    $jpeg = new PelJpeg(dirname(__FILE__) . \'/%s\');
+', $test_name, $image_filename, $image_filename);
+
+require_once(dirname(__FILE__) . '/../../src/PelJpeg.php');
+$jpeg = new PelJpeg($image_filename);
+
+$indent = 2;
+jpegToTest('$jpeg', $jpeg);
+
+println();
+
+$exceptions = Pel::getExceptions();
+
+if (count($exceptions) == 0) {
+    println('$this->assertTrue(count(Pel::getExceptions()) == 0);');
+} else {
+    println('$exceptions = Pel::getExceptions();');
+    for ($i = 0; $i < count($exceptions); $i ++) {
+        println('$this->assertInstanceOf(\'%s\', $exceptions[%d]);', $i, get_class($exceptions[$i]));
+
+        println('$this->assertEquals($exceptions[%d]->getMessage(),', $i);
+        println('                   \'%s\');', quote($exceptions[$i]->getMessage()));
+    }
+}
+
+println('
+  }
+}
+');
+
+/* The test case is finished -- now dump the output as a PHP file. */
+file_put_contents($test_filename, ob_get_clean());