user_sessions_controller_test.rb

    context "on POST to /user_session/create with good creds" do
      setup do
        assert_nil UserSession.find
        assert_nil @controller.send(:current_user)
        @user = Factory(:user, :password => "foobar")
        post :create, :user_session => { :email => @user.email, :password => "foobar" }
      end
      # should_redirect_to("homepage") { root_url }
      should_set_the_flash_to /welcome/i
    end