Issue #2852540: Make flexslider library and module css optional. Fix …

…library download errors.

tests/modules/flexslider_library_test/flexslider_library_test.install

@@ -5,11 +5,13 @@
  * Install file for the flexslider library test module.
  */
 
+use Drupal\Core\Site\Settings;
+
 /**
  * Implements hook_install().
  */
 function flexslider_library_test_install() {
-  $library_folder = DRUPAL_ROOT . '/libraries';
+  $library_folder = Settings::get('file_public_path') . '/libraries';
   $flexslider_folder = $library_folder . '/flexslider';
   if (file_exists($flexslider_folder)) {
     return;

tests/modules/flexslider_library_test/flexslider_library_test.module

@@ -1,9 +1,35 @@
 <?php
+
 /**
  * @file
  * Hooks for flexslider library testing.
  */
 
+use Drupal\Core\Site\Settings;
+
+/**
+ * Implements hook_library_info_alter().
+ */
+function flexslider_library_test_library_info_alter(&$libraries, $extension)
+{
+  if ($extension == 'flexslider' and isset($libraries['flexslider'])) {
+
+    $library_path = '/libraries/flexslider';
+    $library_path_test = '/' . Settings::get('file_public_path') . $library_path;
+
+    // Set path to where the library was downloaded in the test environment.
+    $js = \Drupal::config('flexslider.settings')->get('flexslider_debug') ? 'jquery.flexslider.js' : 'jquery.flexslider-min.js';
+    $libraries['flexslider']['js'][$library_path_test . '/' . $js] = $libraries['flexslider']['js'][$library_path . '/' . $js];
+    unset($libraries['flexslider']['js'][$library_path . '/' . $js]);
+
+    if (!empty($libraries['flexslider']['css']['component'][$library_path . '/flexslider.css'])) {
+      $libraries['flexslider']['css']['component'][$library_path_test . '/flexslider.css'] = $libraries['flexslider']['css']['component'][$library_path . '/flexslider.css'];
+      unset($libraries['flexslider']['css']['component'][$library_path . '/flexslider.css']);
+    }
+
+  }
+}
+
 /**
  * Implements hook_page_attachments_alter().
  */