Rspec无法加载支持文件

我无法让rspec加载支持文件,已尝试:

config.include SessionHelper, :type => :controller

在spec\u helper文件中

NameError: uninitialized constant SessionsSpecHelper

正在添加:

Dir[Rails.root.join("spec/support/**/*.rb")].each { |f| require f }

给我:

NoMethodError: undefined method `join' for nil:NilClass

正在添加:

require 'support/session_helpers.rb'

不提供任何差异

支持/会话\u帮助程序。rb:

module SessionHelpers
def sign_up_with(email, password)
  visit sign_up_path
  fill_in 'Email', with: email
  fill_in 'Password', with: password
  click_button 'Sign up'
end

def sign_in
  user = create(:user)
  visit sign_in_path
  fill_in 'Email', with: user.email
  fill_in 'Password', with: user.password
  click_button 'Sign in'
end
end