validate signup action

[sayima]

As a player

I want to signup to the app

So that I may able to login to the game

Additional Details

Acceptance Criteria

• Criteria 1
  • Given I clicked signup
  • When I fill the unique username and a password and I clicked submit
  • Then I should be able to create/join game.
• Criteria 2
  • Given I clicked signup
  • When I fill the username that already there and password and I clicked submit
  • Then I should be able to stay on the landing page with a message that tells me this username is already used.
• Criteria 2
  • Given I clicked signup
  • When I fill the username only and no password and I clicked submit
  • Then I should be able to stay on the landing page with a message that tells me the password and username field is mandatory.