Behat: Fix tests

tests/behat/features/sessionAccess.feature

@@ -64,7 +64,7 @@ Feature: Session access
   Scenario: mmosquera connect to Session 1
     Given I am logged as "mmosquera"
     Then I am on course "TEMPPRIVATE" homepage in session "Session1"
-    Then I should see "You are not allowed"
+    Then I should see "Unauthorised access to course"
 
   Scenario: mmosquera connect to Session 2
     Given I am logged as "mmosquera"

tests/behat/features/sessionManagement.feature

@@ -59,7 +59,7 @@ Feature: Session management tool
   Scenario: Check session description with platform setting off
     Given I am a platform administrator
     And I am on "/admin/settings/search_settings?keyword=show_session_description"
-    And I select "yes" from "form_show_session_description"
+    And I select "true" from "form_show_session_description"
     And I press "Save settings"
     Then I am on "/main/index/user_portal.php"
     Then I should see "Temp Session"
@@ -68,7 +68,7 @@ Feature: Session management tool
   Scenario: Check session description with platform setting on
     Given I am a platform administrator
     And I am on "/admin/settings/search_settings?keyword=show_session_description"
-    And I select "yes" from "form_show_session_description"
+    And I select "true" from "form_show_session_description"
     And I press "Save settings"
     Then I should see "Update successful"
     Then I am on "/main/index/user_portal.php"

tests/behat/features/socialGroup.feature

@@ -8,7 +8,7 @@ Feature: Social Group
       And I am on "/main/social/group_add.php"
       When I fill in the following:
           | name          | Behat Test Group                  |
-          | description   | This is a group created by Behat  |
+      Then I fill in ckeditor field "description" with "This is a group created by Beha"
       And I press "submit"
       Then I should see "Group added"
 

tests/behat/features/systemAnnouncements.feature

@@ -18,5 +18,5 @@ Feature: System Announcements
   Scenario: Delete system announcement
     Given I am on "/main/admin/system_announcements.php"
     When I follow "Delete"
-    And I confirm the popup
+    Then I follow "Yes"
     Then I should see "Announcement has been deleted"