why does this cucumber code fail - ruby-on-rails-3

Question

I have this code : https://github.com/roelof1967/tamara
But when I do cucumber it fails with this error message : https://gist.github.com/4008123
Can anyone explain to me what's wrong with my code?
Roelof
Edit 1:
Code that fails:
class Output
def messages
#messages ||= []
end
def puts(message)
messages << message
end
def output
#output ||= Output.new
end
end
When /^he logs in$/ do
visit("/users/sign_in")
fill_in('Email', :with => #user.email)
fill_in('Password', :with => #user.password)
click_button('Sign in')
end
Then /^he should see "(.*?)"$/ do |message|
#output.messages.should include (message)
end
And here is the error message :
undefined method `[]' for nil:NilClass NoMethodError)
./features/step_definitions/login_steps.rb:6:in `/^he logs in$/'
features/login.feature:5:in `When he logs in'

Answer 1

Do this for your solution:
Step 1 : create home controller
class HomeController < ApplicationController
def index
end
end
step 2 : create home folder in view and create index.html.erb file and your content look like as a example
<% if current_user.present? %>
<h1> <%= link_to "Sign Out", destroy_user_session_path, :method => :delete %> </h1>
<% else %>
<h1> <%= link_to "Sign Up", "/users/sign_up" %> |<%= link_to "Sign In", user_session_path %> </h1>
<% end %>
step 3 : now your login.feature file look like
Feature: login and authecation
Scenario: log in as existing user
Given a user "roelof" exists
When he logs in
Then he should see "Signed in successfully."
And he should see "Sign Out"
Scenario: log in with bad password
Given a user "Aslak" exists
When he logs in with a bad password
Then he should not see "Welcome, Aslak"
And he should see "Login failed"
step 4 now, run cucumber
your scenario "log in as existing user" will pass.