MDL-72179 behat: Make use of page resolvers

lib/behat/classes/behat_generator_base.php

@@ -531,4 +531,46 @@ abstract class behat_generator_base {
         }
         return $id;
     }
+
+    /**
+     * Get a coursemodule from an activity name or idnumber.
+     *
+     * @param string $activity
+     * @param string $identifier
+     * @return cm_info
+     */
+    protected function get_cm_by_activity_name(string $activity, string $identifier): cm_info {
+        global $DB;
+
+        $coursetable = new \core\dml\table('course', 'c', 'c');
+        $courseselect = $coursetable->get_field_select();
+        $coursefrom = $coursetable->get_from_sql();
+
+        $cmtable = new \core\dml\table('course_modules', 'cm', 'cm');
+        $cmfrom = $cmtable->get_from_sql();
+
+        $acttable = new \core\dml\table($activity, 'act', 'act');
+        $actselect = $acttable->get_field_select();
+        $actfrom = $acttable->get_from_sql();
+
+        $sql = <<<EOF
+    SELECT cm.id as cmid, {$courseselect}, {$actselect}
+      FROM {$cmfrom}
+INNER JOIN {$coursefrom} ON c.id = cm.course
+INNER JOIN {modules} m ON m.id = cm.module AND m.name = :modname
+INNER JOIN {$actfrom} ON cm.instance = act.id
+     WHERE cm.idnumber = :idnumber OR act.name = :name
+EOF;
+
+        $result = $DB->get_record_sql($sql, [
+            'modname' => $activity,
+            'idnumber' => $identifier,
+            'name' => $identifier,
+        ], MUST_EXIST);
+
+        $course = $coursetable->extract_from_result($result);
+        $instancedata = $acttable->extract_from_result($result);
+
+        return get_fast_modinfo($course)->get_cm($result->cmid);
+    }
 }