Simple functional test fails

Hi there:

I'm starting with rails and I founded and issue that I can't figure
out how to solve:

- This is the controller:
class StoriesController < ApplicationController
  def index
    @current_time = Time.now
    @story = Story.find_by_name('txapelgorri')
    @rand_story = Story.find(:first, :order => 'RANDOM()')
  end
end
- This is the view:
    <p>Time <%= @current_time %></p>
    <p>A story <a href="<%= @story.link %>"><%= @story.name %></a></p>
    <p>A story (more polite): <%= link_to @story.name, @story.link %></

    <p>Random history: <%= link_to @rand_story.name, @rand_story.link
%></p>
- And finally this is the test:
class StoriesControllerTest < ActionController::TestCase
  def test_should_show_index
    get :index
    assert_response :success
    assert_template 'index'
    assert_not_nil assigns(:story)
  end
end

When running "rake test:functionals" it shows an error: "The error
occurred while evaluating nil.link on line #2 of stories/
index.html.erb". This error belongs to "assert_not_nil
assigns(:story)" at the test file (so it says the console). Isn't
supposed to be already a "not nil" instance variable when I declared
it at controller (Story.find_by_name, blah, blah)?.

Thanks in advance, txapelgorri.

Hi there:

I'm starting with rails and I founded and issue that I can't figure
out how to solve:

- This is the controller:
class StoriesController < ApplicationController
  def index
    @current_time = Time.now
    @story = Story.find_by_name('txapelgorri')
    @rand_story = Story.find(:first, :order => 'RANDOM()')
  end
end
- This is the view:
    <p>Time <%= @current_time %></p>
    <p>A story <a href="<%= @story.link %>"><%= @story.name %></a></p>
    <p>A story (more polite): <%= link_to @story.name, @story.link %></
>
    <p>Random history: <%= link_to @rand_story.name, @rand_story.link
%></p>
- And finally this is the test:
class StoriesControllerTest < ActionController::TestCase
  def test_should_show_index
    get :index
    assert_response :success
    assert_template 'index'
    assert_not_nil assigns(:story)
  end
end

When running "rake test:functionals" it shows an error: "The error
occurred while evaluating nil.link on line #2 of stories/
index.html.erb". This error belongs to "assert_not_nil
assigns(:story)" at the test file (so it says the console). Isn't
supposed to be already a "not nil" instance variable when I declared
it at controller (Story.find_by_name, blah, blah)?.

Thanks in advance, txapelgorri.

Quoting txapelgorri <ibon.castilla@gmail.com>:

Hi there:

I'm starting with rails and I founded and issue that I can't figure
out how to solve:

- This is the controller:
class StoriesController < ApplicationController
  def index
    @current_time = Time.now
    @story = Story.find_by_name('txapelgorri')
    @rand_story = Story.find(:first, :order => 'RANDOM()')
  end
end
- This is the view:
    <p>Time <%= @current_time %></p>
    <p>A story <a href="<%= @story.link %>"><%= @story.name %></a></p>
    <p>A story (more polite): <%= link_to @story.name, @story.link %></
>
    <p>Random history: <%= link_to @rand_story.name, @rand_story.link
%></p>
- And finally this is the test:
class StoriesControllerTest < ActionController::TestCase
  def test_should_show_index
    get :index
    assert_response :success
    assert_template 'index'
    assert_not_nil assigns(:story)
  end
end

When running "rake test:functionals" it shows an error: "The error
occurred while evaluating nil.link on line #2 of stories/
index.html.erb". This error belongs to "assert_not_nil
assigns(:story)" at the test file (so it says the console). Isn't
supposed to be already a "not nil" instance variable when I declared
it at controller (Story.find_by_name, blah, blah)?.

You are not loading any fixtures, so the test database may very well be
empty. It the database is empty find(:first) will return nil. You may be
confusing nil with undefined.

HTH,
  Jeffrey

Thanks both for answering. I was playing around with the code and I
probably miss to change the instance variable at any of the three
files :S
It finally get solved by it self. Thanks again.
Cheers, txapelgorri.