Fix issue #12 related to behat tests (#13)

* Fix config_is_valid checks when config is empty
* Fix private final method in tests (we should not make a private method final)

Author: laurentdavid

block_rss_thumbnails.php

@@ -213,10 +213,10 @@ public function config_is_valid(): bool {
         if (empty($this->config)) {
             return false;
         }
-        if (!is_integer($this->config->carousseldelay)) {
+        if (empty($this->config->carousseldelay) || !is_integer($this->config->carousseldelay)) {
             return false;
         }
-        if (!is_integer($this->config->numentries)) {
+        if (empty($this->config->numentries) || !is_integer($this->config->numentries)) {
             return false;
         }
         if (!$this->config->title) {

tests/block_rss_thumbnails_test.php

@@ -182,7 +182,7 @@ public function test_get_feed_items() {
      *
      * @return array[]
      */
-    final private function get_expected_items() {
+    private function get_expected_items() {
         return [
             [
                 "id" => "https://www.imt.fr/?p=89572",

version.php

@@ -24,7 +24,7 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version    = 2022120901;        // The current plugin version (Date: YYYYMMDDXX).
+$plugin->version    = 2023020200;        // The current plugin version (Date: YYYYMMDDXX).
 $plugin->requires   = 2012112900;        // Requires this Moodle version.
 $plugin->release    = 1.2;
 $plugin->maturity    = MATURITY_STABLE;