how to run capybara commands once, then run some tests

问题

I have the given testing code:

describe 'A new user', js: true do
  before do
    @new_user = Fabricate.build(:user)
  end

  it 'should sign up' do
    #login code
    visit '/'
    click_link 'Login'
    fill_in 'user[email]', :with => @new_user.email
    fill_in 'user[password]', :with => @new_user.password
    click_button 'Login now'
    #login code end

    page.should have_content("Hello #{@new_user.first_name}!")
    current_path.should == dashboard_path
  end

  it 'should receive a confirmation mail' do
    #same login code again
    visit '/'
    click_link 'Login'
    fill_in 'user[email]', :with => @new_user.email
    fill_in 'user[password]', :with => @new_user.password
    click_button 'Login now'

    mail = ActionMailer::Base.deliveries.last
    assert_equal @new_user.email, mail['to'].to_s
  end
end

Now I want to add more tests. To avoid code doubling, how can I run the capybara login code once before all tests? One solution would be to put the login code in the before method. Another would be to create a method do_login, put the code in it and run every test like this:

it 'should do something after login' do
  do_login
  #test code here
end

But for both solutions, the code is run for every test and thats not what I want. Putting the login code in a before(:all) doesn't work, too.

How can I run some capybara code once and then do all the tests after this?

回答1:

You can't run capybara code once and then run all the tests. You always start from scratch. Your proposed solution with before(:each) or helper method is the only posibility. (It's possible to run some ruby before(:all) e.g. create objects outside the transaction check here but not Capybara)

To speed up your specs you can test login feature in separate spec and then somehow stub the authentication but it depends on your implementation.

If you are using Devise check devise wiki: https://github.com/plataformatec/devise/wiki/How-To:-Controllers-tests-with-Rails-3-(and-rspec)

来源：https://stackoverflow.com/questions/12371605/how-to-run-capybara-commands-once-then-run-some-tests