Stack level too deep Error

env.rb

require 'rubygems'
require 'spork'

Spork.prefork do
  # Loading more in this block will cause your tests to run faster. However, 
  # if you change any configuration or code from libraries loaded here, you'll
  # need to restart spork for it take effect.
  
  require 'cucumber/rails'

  require 'webrat'
  require 'webrat/core/matchers'

  Webrat.configure do |config|
    config.mode = :rails
    config.open_error_files = false # Set to true if you want error pages to pop up in the browser
  end


  # By default, any exception happening in your Rails application will bubble up
  # to Cucumber so that your scenario will fail. This is a different from how 
  # your application behaves in the production environment, where an error page will 
  # be rendered instead.
  #
  # Sometimes we want to override this default behaviour and allow Rails to rescue
  # exceptions and display an error page (just like when the app is running in production).
  # Typical scenarios where you want to do this is when you test your error pages.
  # There are two ways to allow Rails to rescue exceptions:
  #
  # 1) Tag your scenario (or feature) with @allow-rescue
  #
  # 2) Set the value below to true. Beware that doing this globally is not
  # recommended as it will mask a lot of errors for you!
  #
  ActionController::Base.allow_rescue = false

  # Remove/comment out the lines below if your app doesn't have a database.
  # For some databases (like MongoDB and CouchDB) you may need to use :truncation instead.
  begin
    DatabaseCleaner.strategy = :transaction
  rescue NameError
    raise "You need to add database_cleaner to your Gemfile (in the :test group) if you wish to use it."
  end
end

Spork.each_run do
  # This code will be run each time you run your specs.
  
end

gistfile1.feature

Feature: Homepage Links
  
  So that customers will be able to navigate to the correct places from the homepage
  As a site visitor
  I want to navigate the site from the home page

  Scenario: Login from the homepage    # features/homepage-links.feature:7
    Given I am on the homepage         # features/step_definitions/web_steps.rb:30
      stack level too deep (SystemStackError)
      features/homepage-links.feature:8:in `Given I am on the homepage'
    When I click "login"               # features/step_definitions/web_steps.rb:42
    Then I should be on the login page # features/step_definitions/web_steps.rb:276

Failing Scenarios:
cucumber features/homepage-links.feature:7 # Scenario: Login from the homepage

paths.rb

module NavigationHelpers
  # Maps a name to a path. Used by the
  #
  #   When /^I go to (.+)$/ do |page_name|
  #
  # step definition in web_steps.rb
  #
  def path_to(page_name)
    case page_name

    when /the home\s?page/
      '/'

    when /the login\s?page/
      '/login'

    when /the admin\s?page/
      '/admin'
    # Add more mappings here.
    # Here is an example that pulls values out of the Regexp:
    #
    #   when /^(.*)'s profile page$/i
    #     user_profile_path(User.find_by_login($1))

    else
      begin
        page_name =~ /the (.*) page/
        path_components = $1.split(/\s+/)
        self.send(path_components.push('path').join('_').to_sym)
      rescue Object => e
        raise "Can't find mapping from \"#{page_name}\" to a path.\n" +
          "Now, go and add a mapping in #{__FILE__}"
      end
    end
  end
end

World(NavigationHelpers)

selectors.rb

module HtmlSelectorsHelpers
  # Maps a name to a selector. Used primarily by the
  #
  #   When /^(.+) within (.+)$/ do |step, scope|
  #
  # step definitions in web_steps.rb
  #
  def selector_for(locator)
    case locator

    when /the page/
      "html > body"

    # Add more mappings here.
    # Here is an example that pulls values out of the Regexp:
    #
    #  when /the (notice|error|info) flash/
    #    ".flash.#{$1}"

    # You can also return an array to use a different selector
    # type, like:
    #
    #  when /the header/
    #    [:xpath, "//header"]

    # This allows you to provide a quoted selector as the scope
    # for "within" steps as was previously the default for the
    # web steps:
    when /"(.+)"/
      $1

    else
      raise "Can't find mapping from \"#{locator}\" to a selector.\n" +
        "Now, go and add a mapping in #{__FILE__}"
    end
  end
end

web_steps.rb

require 'uri'
require 'cgi'
require File.expand_path(File.join(File.dirname(__FILE__), "..", "support", "paths"))
require File.expand_path(File.join(File.dirname(__FILE__), "..", "support", "selectors"))

# Commonly used webrat steps
# http://github.com/brynary/webrat

Given /^(?:|I )am on (.+)$/ do |page_name|
  visit path_to(page_name)
end

When /^(?:|I )go to (.+)$/ do |page_name|
  visit path_to(page_name)
end

When /^(?:|I )press "([^"]*)"$/ do |button|
  click_button(button)
end

When /^(?:|I )click "([^"]*)"$/ do |link|
  click_link(link)
end

When /^(?:|I )follow "([^"]*)"$/ do |link|
  click_link(link)
end

When /^(?:|I )follow "([^"]*)" within (.*)$/ do |link, parent|
  click_link_within(selector_for(parent), link)
end

When /^(?:|I )fill in "([^"]*)" with "([^"]*)"$/ do |field, value|
  fill_in(field, :with => value)
end

When /^(?:|I )fill in "([^"]*)" for "([^"]*)"$/ do |value, field|
  fill_in(field, :with => value)
end

# Use this to fill in an entire form with data from a table. Example:
#
#   When I fill in the following:
#     | Account Number | 5002       |
#     | Expiry date    | 2009-11-01 |
#     | Note           | Nice guy   |
#     | Wants Email?   |            |
#
# TODO: Add support for checkbox, select og option
# based on naming conventions.
#
When /^(?:|I )fill in the following:$/ do |fields|
  fields.rows_hash.each do |name, value|
    When %{I fill in "#{name}" with "#{value}"}
  end
end

When /^(?:|I )select "([^"]*)" from "([^"]*)"$/ do |value, field|
  select(value, :from => field)
end

# Use this step in conjunction with Rail's datetime_select helper. For example:
# When I select "December 25, 2008 10:00" as the date and time
When /^(?:|I )select "([^"]*)" as the date and time$/ do |time|
  select_datetime(time)
end

# Use this step when using multiple datetime_select helpers on a page or
# you want to specify which datetime to select. Given the following view:
#   <%= f.label :preferred %><br />
#   <%= f.datetime_select :preferred %>
#   <%= f.label :alternative %><br />
#   <%= f.datetime_select :alternative %>
# The following steps would fill out the form:
# When I select "November 23, 2004 11:20" as the "Preferred" date and time
# And I select "November 25, 2004 10:30" as the "Alternative" date and time
When /^(?:|I )select "([^"]*)" as the "([^"]*)" date and time$/ do |datetime, datetime_label|
  select_datetime(datetime, :from => datetime_label)
end

# Use this step in conjunction with Rail's time_select helper. For example:
# When I select "2:20PM" as the time
# Note: Rail's default time helper provides 24-hour time-- not 12 hour time. Webrat
# will convert the 2:20PM to 14:20 and then select it.
When /^(?:|I )select "([^"]*)" as the time$/ do |time|
  select_time(time)
end

# Use this step when using multiple time_select helpers on a page or you want to
# specify the name of the time on the form.  For example:
# When I select "7:30AM" as the "Gym" time
When /^(?:|I )select "([^"]*)" as the "([^"]*)" time$/ do |time, time_label|
  select_time(time, :from => time_label)
end

# Use this step in conjunction with Rail's date_select helper.  For example:
# When I select "February 20, 1981" as the date
When /^(?:|I )select "([^"]*)" as the date$/ do |date|
  select_date(date)
end

# Use this step when using multiple date_select helpers on one page or
# you want to specify the name of the date on the form. For example:
# When I select "April 26, 1982" as the "Date of Birth" date
When /^(?:|I )select "([^"]*)" as the "([^"]*)" date$/ do |date, date_label|
  select_date(date, :from => date_label)
end

When /^(?:|I )check "([^"]*)"$/ do |field|
  check(field)
end

When /^(?:|I )uncheck "([^"]*)"$/ do |field|
  uncheck(field)
end

When /^(?:|I )choose "([^"]*)"$/ do |field|
  choose(field)
end

# Adds support for validates_attachment_content_type. Without the mime-type getting
# passed to attach_file() you will get a "Photo file is not one of the allowed file types."
# error message 
When /^(?:|I )attach the file "([^"]*)" to "([^"]*)"$/ do |path, field|
  type = path.split(".")[1]

  case type
  when "jpg"
    type = "image/jpg" 
  when "jpeg"
    type = "image/jpeg" 
  when "png"
    type = "image/png" 
  when "gif"
    type = "image/gif"
  end
  
  attach_file(field, path, type)
end

Then /^(?:|I )should see "([^"]*)"$/ do |text|
  if response.respond_to? :should
    response.should contain(text)
  else
    assert_contain text
  end
end

Then /^(?:|I )should see "([^"]*)" within (.*)$/ do |text, parent|
  within(selector_for(parent)) do |content|
    if content.respond_to? :should
      content.should contain(text)
    else
      hc = Webrat::Matchers::HasContent.new(text)
      assert hc.matches?(content), hc.failure_message
    end
  end
end

Then /^(?:|I )should see \/([^\/]*)\/$/ do |regexp|
  regexp = Regexp.new(regexp)
  if response.respond_to? :should
    response.should contain(regexp)
  else
    assert_match(regexp, response_body)
  end
end

Then /^(?:|I )should see \/([^\/]*)\/ within (.*)$/ do |regexp, parent|
  within(selector_for(parent)) do |content|
    regexp = Regexp.new(regexp)
    if content.respond_to? :should
      content.should contain(regexp)
    else
      assert_match(regexp, content)
    end
  end
end

Then /^(?:|I )should not see "([^"]*)"$/ do |text|
  if response.respond_to? :should_not
    response.should_not contain(text)
  else
    assert_not_contain(text)
  end
end

Then /^(?:|I )should not see "([^"]*)" within (.*)$/ do |text, parent|
  within(selector_for(parent)) do |content|
    if content.respond_to? :should_not
      content.should_not contain(text)
    else
      hc = Webrat::Matchers::HasContent.new(text)
      assert !hc.matches?(content), hc.negative_failure_message
    end
  end
end

Then /^(?:|I )should not see \/([^\/]*)\/$/ do |regexp|
  regexp = Regexp.new(regexp)
  if response.respond_to? :should_not
    response.should_not contain(regexp)
  else
    assert_not_contain(regexp)
  end
end

Then /^(?:|I )should not see \/([^\/]*)\/ within (.*)$/ do |regexp, parent|
  within(selector_for(parent)) do |content|
    regexp = Regexp.new(regexp)
    if content.respond_to? :should_not
      content.should_not contain(regexp)
    else
      assert_no_match(regexp, content)
    end
  end
end

Then /^the "([^"]*)" field should contain "([^"]*)"$/ do |field, value|
  field_value = field_labeled(field).value
  if field_value.respond_to? :should
    field_value.should =~ /#{value}/
  else
    assert_match(/#{value}/, field_value)
  end
end

Then /^the "([^"]*)" field should not contain "([^"]*)"$/ do |field, value|
  field_value = field_labeled(field).value
  if field_value.respond_to? :should_not
    field_value.should_not =~ /#{value}/
  else
    assert_no_match(/#{value}/, field_value)
  end
end

Then /^the "([^"]*)" checkbox should be checked$/ do |label|
  field = field_labeled(label)
  if field.respond_to? :should
    field.should be_checked
  else
    assert field.checked?
  end
end

Then /^the "([^"]*)" checkbox should not be checked$/ do |label|
  field = field_labeled(label)
  if field.respond_to? :should_not
    field.should_not be_checked
  else
    assert !field.checked?
  end
end

Then /^(?:|I )should be on (.+)$/ do |page_name|
  current_path = URI.parse(current_url).path
  if current_path.respond_to? :should
    current_path.should == path_to(page_name)
  else
    assert_equal path_to(page_name), current_path
  end
end

Then /^(?:|I )should have the following query string:$/ do |expected_pairs|
  query = URI.parse(current_url).query
  actual_params = query ? CGI.parse(query) : {}
  expected_params = {}
  expected_pairs.rows_hash.each_pair{|k,v| expected_params[k] = v.split(',')} 

  if actual_params.respond_to? :should
    actual_params.should == expected_params
  else
    assert_equal expected_params, actual_params
  end
end

Then /^show me the page$/ do
  save_and_open_page
end

I'm having the same problem. Have you figured it out?

Working on it right now.