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Project: RSpec Rails 2.0

Publisher: RSpec

helper spec

Helper specs live in spec/helpers. In order to access
the helper methods you can call them on the "helper" object.

Scenarios
helper method that returns true
Given
a file named "spec/helpers/application_helper_spec.rb" with: 
require "spec_helper"

describe ApplicationHelper do
  describe "#page_title" do
    it "returns true" do
      helper.page_title.should be_true
    end
  end
end
And
a file named "app/helpers/application_helper.rb" with: 
module ApplicationHelper
  def page_title
    true
  end
end
When
I run "rspec spec/helpers/application_helper_spec.rb"
Then
the output should contain "1 example, 0 failures"
helper method that accesses an instance variable
Given
a file named "spec/helpers/application_helper_spec.rb" with: 
require "spec_helper"

describe ApplicationHelper do
  describe "#page_title" do
    it "returns the instance variable" do
      assign(:title, "My Title")
      helper.page_title.should eql("My Title")
    end
  end
end
And
a file named "app/helpers/application_helper.rb" with: 
module ApplicationHelper
  def page_title
    @title || nil
  end
end
When
I run "rspec spec/helpers/application_helper_spec.rb"
Then
the output should contain "1 example, 0 failures"

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