use data test id

cypress/e2e/class_management/groupMembers.feature

@@ -4,7 +4,6 @@ Feature: Group - To show members in a group
 
   As a teacher I want to see the members in a group
 
-  #@stable_test
   Scenario: As a teacher I can manage a group of type class from external systems
     Given I am logged in as a 'teacher1_nbc' at 'nbc'
     When I go to administration page

cypress/e2e/class_management/showGroupsAndClassesInTable.feature

@@ -4,7 +4,6 @@ Feature: Group - To show groups and classes in one table with respective functio
 
   As a teacher I want to see all groups and classes belonging to my school.
 
-  #@stable_test
   Scenario: As a teacher i can add a class to school
     Given I am logged in as a 'teacher1_nbc' at 'nbc'
     When I go to administration page
@@ -21,7 +20,6 @@ Feature: Group - To show groups and classes in one table with respective functio
     When I confirm managing the class
     Then I see the new class administration page
 
-  #@stable_test
   Scenario: As a teacher i can see all classes and groups of my school on the new class administration page.
     Given I see the new class administration page
     Then I can see the page title
@@ -32,7 +30,6 @@ Feature: Group - To show groups and classes in one table with respective functio
     Then I can see the manage button for group 'Cypress-Test-Group'
     Then I can see 4 enabled action items for class '1'
 
-  #@stable_test
   Scenario: As a teacher i can manage my classes
     Given I see the new class administration page
     When I click the manage button
@@ -45,7 +42,6 @@ Feature: Group - To show groups and classes in one table with respective functio
     When I confirm managing the class
     Then I see the new class administration page
 
-  #@stable_test
   Scenario: As a teacher i can edit my classes
     Given I see the new class administration page
     When I click the edit button
@@ -59,7 +55,6 @@ Feature: Group - To show groups and classes in one table with respective functio
     Then I can click on the save changes button
     Then I see the new class administration page
 
-  #@stable_test
   Scenario: As a teacher i can upgrade my upgradable classes
     Given I see the new class administration page
     When I click the create successor button
@@ -74,7 +69,6 @@ Feature: Group - To show groups and classes in one table with respective functio
     Then I see the new class administration page
     Then I can see the disabled create successor button of the original class
 
-  #@stable_test
   Scenario: As a teacher i can delete my classes
     Given I see the new class administration page
     When I click the delete button
@@ -85,7 +79,6 @@ Feature: Group - To show groups and classes in one table with respective functio
     When I click the confirmation button on the delete modal
     Then I see the new class administration page
 
-  #@stable_test
   Scenario: As a post-condition teacher deletes the successor class and logs out
     Given I see the new class administration page
     When I click on the next year tab

cypress/support/pages/class_management/pageClasses.js

@@ -14,7 +14,7 @@ class Classes {
 	static #editClassButton = '[data-testid="class-table-edit-btn"]';
 	static #createSuccessorButton = '[data-testid="class-table-successor-btn"]';
 	static #deleteClassButton = '[data-testid="class-table-delete-btn"]';
-	static #deleteDialog = '.v-dialog--active';
+	static #deleteDialog = '[data-testid="dialog-title"]';
 	static #deleteDialogCancel = '[data-testid="dialog-cancel"]';
 	static #deleteDialogConfirm = '[data-testid="dialog-confirm"]';
 	static #adminGroupTitle = '[data-testid="admin-class-title"]';