MOBILE-4081 behat: Check site compatibility

Whether the version of the moodle site is compatible should be checked automatically, however with the current implementation it's only checked once the app is launched. So in some scenarios, it may be necessary to explicitly tell behat to check the site.

local_moodleappbehat/tests/behat/behat_app.php

@@ -558,6 +558,16 @@ class behat_app extends behat_app_helper {
         }
     }
 
+    /**
+     * Check whether the moodle site is compatible with the current feature file
+     * and skip it otherwise. This will be checked looking at tags such as @lms_uptoXXX
+     *
+     * @Given the Moodle site is compatible with this feature
+     */
+    public function the_moodle_site_is_compatible_with_this_feature() {
+        $this->check_tags();
+    }
+
     /**
      * Clicks on / touches something that is visible in the app.
      *

src/core/features/course/tests/behat/basic_usage-311.feature

@@ -72,7 +72,8 @@ Feature: Test basic usage of one course in app
       | workshop      | Test workshop name    | Test workshop     | C1     | workshop       | 0         | 3       |
 
   Scenario: Self enrol
-    Given I log in as "teacher1"
+    Given the Moodle site is compatible with this feature
+    And I log in as "teacher1"
     And I am on "Course 1" course homepage
     And I add "Self enrolment" enrolment method with:
       | Custom instance name | Student self enrolment |