Feature: user authentication
Scenario: user logs in
Given a user with username "ohai" and password "secret"
When I go to the new user session page
And I fill in "Username" with "ohai"
And I fill in "Password" with "secret"
And I press "Sign in"
Then I should be on the aspects page
Scenario: user logs out
Given I am signed in
And I click on my name in the header
And I follow "logout"
Then I should be on the home page