The lecturer creates assignments for a subgroup

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Task

The lecturer should be able to create assignments for a subgroup. The assignments should be written on a special page using Markdown and have the following characteristics:

• name
• text
• due date
• optional an attachment with the necessary materials
• published
• a list of Problems

Test cases

• As a lecturer with a course and subgroup, I should be able to create an assignment
• As a lecturer with a course and subgroup, I should be able to edit the assignment
• I should be able to publish the assignment
• Once the assignment is published, a notification is sent to all the students
• Once the assignment is published, it becomes visible to all the students
• If an assignment is not published, it is not visible to the students
• I cannot set a due date before today
• I can create the problems and assign their scores