Deterministic Way of Test Automation

new_member.feature

Feature: New member 
   As A user
   I Want to become member
   So That I buy something

   Background: User open sign-up page
      Given I go to home page
      When I click "sign-up button"   

      @javascript
      Scenario: User should sign-up 
         When I fill e-mail as "test@test.com"
         And I fill password as "password"
         And I click "submit" button
         Then I should see confirmation mail send to "test@test.com"

      @javascript
      Scenario: User should see warning for already used e-mail 
         When I fill e-mail as "test@test.com"
         And I fill password as "password"
         And I click "submit" button
         Then I should see "Congrulation" page
         Given I go to home page
         When I click "sign-up button"   
         When I fill e-mail as "test@test.com"
         And I fill password as "password"
         And I click "submit" button
         Then I should see warning for already used e-mail

new_member.rb

Given(/^I go to home page$/) do
  pending # express the regexp above with the code you wish you had
end

When(/^I click "(.*?)"$/) do |button|
  pending # express the regexp above with the code you wish you had
end

When(/^I fill e\-mail as "(.*?)"$/) do |email|
  #check the database and delete if the user is exist
  delete_user_from_database(email)
  
  #we are sure that there is no user with email 
  fill_in "email_box_id" :with => email
end

When(/^I fill password as "(.*?)"$/) do |password|
  pending # express the regexp above with the code you wish you had
end

When(/^I click "(.*?)" button$/) do |button|
  pending # express the regexp above with the code you wish you had
end

Then(/^I should see confirmation mail send to "(.*?)"$/) do |email|
  #check the page if it says congratulation
  has_content? email
  
  #then delete if the user is exist
  delete_user_from_database(email)

end

Then(/^I should see "(.*?)" page$/) do |word|
  #check the page if it says congratulation
  has_content? word
end

Then(/^I should see warning for already used e\-mail$/) do
  pending # express the regexp above with the code you wish you had
end