Undefined Method 'NameOfField' for #<Model:0x000...> - ruby-on-rails-3

Question

I'm totally stumped on this error. Would really appreciate some help :).
To reproduce the error, you can pull the program from https://github.com/WaleyChen/twitter_clone. Then run 'bundle exec rspec spec/'.
I have an rspec test for my controller defined as:
require 'spec_helper'
describe FrontpageController do
render_views # render the views inside the controller tests, so not just test the actions
describe "GET 'frontpage'" do
it "should be successful" do
get 'frontpage'
response.should be_success
end
it "should have the right title" do
get 'frontpage'
response.should have_selector("title", :content => "Twitter")
end
end
end
When I run my rspec tests, I get the following error:
Failures:
1) FrontpageController GET 'frontpage' should be successful
Failure/Error: get 'frontpage'
ActionView::Template::Error:
undefined method `full_name' for #<User:0x007fbfce43dce0>
# ./app/views/frontpage/frontpage.html.erb:22:in `block in _app_views_frontpage_frontpage_html_erb___4518234645475110659_70230885952360'
# ./app/views/frontpage/frontpage.html.erb:21:in `_app_views_frontpage_frontpage_html_erb___4518234645475110659_70230885952360'
# ./spec/controllers/frontpage_controller_spec.rb:8:in `block (3 levels) in <top (required)>'
2) FrontpageController GET 'frontpage' should have the right title
Failure/Error: get 'frontpage'
ActionView::Template::Error:
undefined method `full_name' for #<User:0x007fbfcc99a410>
# ./app/views/frontpage/frontpage.html.erb:22:in `block in _app_views_frontpage_frontpage_html_erb___4518234645475110659_70230885952360'
# ./app/views/frontpage/frontpage.html.erb:21:in `_app_views_frontpage_frontpage_html_erb___4518234645475110659_70230885952360'
# ./spec/controllers/frontpage_controller_spec.rb:13:in `block (3 levels) in <top (required)>'
Here's the controller:
class FrontpageController < ApplicationController
def frontpage
#user = User.new
#sign_up = User.new
end
def sign_up
if #post.save
format.html { redirect_to #post, notice: 'Post was successfully created.' }
end
end
end
Here's the view, that's causing the error:
<%= form_for #user, :url =>"sign_up" do |form| %>
<%= form.text_field :full_name, :placeholder => "Full name" %>
</br>
<%= form.text_field :email, :placeholder => "Email" %>
</br>
<%= form.text_field :pw, :placeholder => "Password" %>
</br>
<%= form.text_field :username, :placeholder => "Username" %>
</br>
<%= form.submit "Sign up" %>
<% end %>
Here's user.rb:
class User < ActiveRecord::Base
end
Here's schema.rb:
ActiveRecord::Schema.define(:version => 20111106084309) do
create_table "users", :force => true do |t|
t.string "full_name"
t.string "email"
t.string "username"
t.string "pw"
t.datetime "created_at"
t.datetime "updated_at"
end
end

Answer 1

You need to make sure your test database is up to date with all the migrations:
rake db:test:prepare
However, you may have a problem with that as your migrations are broken; you have two migrations named "CreateUsers" which Rails will complain about. It looks like you should delete the more recent one, and then uncomment the t.string :email line in the original one.
Also, if you use bundle exec rake rspec instead of bundle exec rspec spec it'll make sure your database migrations are up to date before running the tests. I just cloned your repo and did this and it passed the tests just fine.