Delete existing OAI-PMH set

Purpose:

Ability to delete unnecessary or obsolete sets in case it's filtering conditions aren't required anymore or become deprecated.

User story statement:

As a system administrator,
I want to be able to delete OAI-PMH sets
so that redundant sets weren't stored in the system

Scenarios:

1. Scenario - Delete set

• Given user has permissions to edit OAI-PMH settings
• When user selects set from the list
• And clicks "Actions"=>"Delete" button
• Then confirmation message "Delete <set_name> set?" appears
• And after clicking "Delete" button selected set is physically removed from the system
• And the message "Set was successfully deleted" is shown.

2. Scenario - Set deletion fail (module issues)

• Given user has permissions to edit OAI-PMH settings
• And there are some issues on the back-end side
• When user confirms set deletion
• Then set isn't deleted in FOLIO
• And message "Unable to delete due to a module error. Please try again. If a problem persists please contact your system administrator." is shown

3. Scenario - Set deletion fail (delete issues)

• Given user has permissions to edit OAI-PMH settings
• When user confirms set deletion
• And set can't be deleted for some reason (e.g. set has been already deleted)
• Then the message "Failed to delete a set." is shown