水豚中的多个会话

Question

背景

我想测试以多个用户的身份登录我的Web应用程序，并且正在使用黄瓜和水豚进行此操作。我找到了有关如何处理多个会话的链接，但不幸的是，它看起来不像黄瓜可以找到所in_session定义的方法。我该如何访问？

黄瓜方案

Given I go to teacher login in Steve's browser

When I enter "Steve" in the username field 
     And I enter "StevesPassword" in the password field 
     And I click login 
Then I should see "Steve Lastname" as the current user

When I go to teacher login in Lisa's browser
     And I enter "Lisa" in the username field 
     And I enter "LisasPassword" in the password field 
     And I click login 
Then I should see "Lisa Lastname" as the current user

Ruby代码

#standard_definitions/switching_sessions.rb
When /^(.*) in (.*) browser$/ do |next_step, name|
    in_session(name) do
        step next_step
    end 
end

---

  #features/support/sessions.rb
  module Capybara
  module Driver
    module Sessions
      def set_session(id)
        Capybara.instance_variable_set("@session_pool", {
          "#{Capybara.current_driver}#{Capybara.app.object_id}" => $sessions[id]
        })
      end

      def in_session(id, &block)
        $sessions ||= {}
        $sessions[:default] ||= Capybara.current_session
        $sessions[id]       ||= Capybara::Session.new(Capybara.current_driver, Capybara.app)
        set_session(id)

        yield

        set_session(:default)
      end
    end
  end
end

失误

运行此命令时，将得到以下信息：

Scenario: multiple users                                  # features/Provebank/Provebank.feature:23
Given I go to teacher login in Steve's browser         # features/step_definitions/standard_definitions/switching_sessions.rb:5
  undefined method `in_session' for Capybara::Driver::Sessions:Module (NoMethodError)
  ./features/step_definitions/standard_definitions/switching_sessions.rb:8:in `/^(.*) in (.*) browser$/'
  features/test.feature:24:in `Given I go to teacher login in Steve's browser'

Answer 1

如文章顶部所述，您已链接“现在已包含在Capybara库中。” -除了方法的名称Capybara.using_session而不是in_session之外，因此您不需要features / support / session.rb。请注意，测试的编写方式以及共享链接中的代码，仅以“在xxxx的浏览器中”结尾的步骤实际上将在不同的会话中发生，而不是您在这些行下选择的那些步骤。要使这些步骤组中的每一个都在各自的会话中发生，您可能需要在每一行上使用“在xxx的浏览器中”，或者使用Capybara.session_name = <name>一个步骤，然后再将其用于以后的步骤。如果直接设置session_name，如果您希望将来的场景默认使用该会话，则可能希望在After块中将其重置为：default。

# only next_step will be executed in the alternate session
When /^(.) in (.*) browser$/ do |next_step, name|
  Capybara.using_session(name) do
     step next_step
  end 
end

# all future steps will be executed in the alternate session
# you probably want to reset this to :default in an After block
Given /^I switch to (.*) browser$/ do |name|
  Capybara.session_name = name
end