Modify moodle data_generator to add cover images via unsplash

data_generator.patch

diff --git a/lib/testing/generator/data_generator.php b/lib/testing/generator/data_generator.php
index cf191f5..301885b 100644
--- a/lib/testing/generator/data_generator.php
+++ b/lib/testing/generator/data_generator.php
@@ -420,7 +420,29 @@ EOD;
         }

         $course = create_course((object)$record);
-        context_course::instance($course->id);
+
+        $context = context_course::instance($course->id);
+
+        // GT Mod
+        $curl = new curl();
+        $jpegdata = $curl->get('https://source.unsplash.com/random');
+
+        $newfilename = 'rawcoverimage.jpg';
+
+            $fileinfo = array(
+                'contextid' => $context->id,
+                'component' => 'course',
+                'filearea' => 'overviewfiles',
+                'itemid' => 0,
+                'filepath' => '/',
+                'filename' => $newfilename);
+
+        $fs = get_file_storage();
+        $storedfile = $fs->create_file_from_string($fileinfo, $jpegdata);
+        $storedfile instanceof \stored_file;
+        \theme_snap\local::process_coverimage($context, $storedfile);
+
         if (!empty($options['createsections'])) {
             if (isset($course->numsections)) {
                 course_create_sections_if_missing($course, range(0, $course->numsections));