As a user, I want to upvote the answer of other users. - CMPUT301F14T06/Team06MapleSyrup GitHub Wiki

Use Case: User want to upvote the answer of other users

Use Case Name: AnswerUpVote

Participating Actors: User

Goal: Upvote Sepcific answer

Trigger: User Presses the Upvote button

Precondition: User is viewing the question content and the answers for the question, and knows which answer he want to upvote for

Postcondition: Upvote attribute for that specific answer +1, the upvote count for the answer and the answer list will also update visually to show change.

Basic Flow:

1. User browse a specific question and it's answer

2. User presses Upvote button for the specific answer

3. Answer upvote attribute updates

4. Answer upvote count change on screen

Exceptions:

2.0 Internet is not connected

- 2.1 Return to the main fragment, the List become empty

- 2.2 A Toast shows no internet access

- 2.3 Go to profile fragment and click local questions button to view saved questions and answers

Test:

• the apps will allow user upvote/downvote the Questions.
  • Create a Question list
  • Create some Questions
  • Insert the Questions
  • Click upvote/downvote button
  • Are the Questions Score (number of Upvote - number of Downvote) correctly displayed?