Rails,Capybara和子域名:如何访问某些子域名

Question

Rails 3,Cucumber 0.9.4,Capybara 0.4.0

我想用子域测试我的功能.我找到了解决方案:

Given /^I visit subdomain "(.+)"$/ do |sub|
  Capybara.default_host = "#{sub}.example.com" #for Rack::Test
  Capybara.app_host = "http://#{sub}.example.com:9887" if Capybara.current_driver == :culerity
end

它运行,如果我运行,cucumber features/subdomain.feature但如果我运行它失败cucumber features!这是令人难以置信的,但这是真的.我记录当前的URL,这是subdomain.example.com对cucumber features/subdomain.feature和www.example.com对cucumber features与一个场景

Scenario: subdomain scenario
  Given I visit subdomain "subdomain"

在这两种情况下!

我不知道原因......

有没有最好的方法来测试带有水豚的子域名？

Answer 1

好的,这里应该是一个相当直接且容易理解的Capybara黑客产生所需的行为,即每次切换子域时能够创建一个新的会话.这对于用户在一个域上注册(导致为其帐户创建子域)的站点非常有用,然后最终需要导航到该子域.

首先(这部分与其他解决方案相当普遍)继续给自己一个方法来改变Cucumber步骤中的Capybara.default_host.我是这样做的:

Then /^I switch the subdomain to (\w+)$/ do |s|
  Capybara.default_host = "#{s}.smackaho.st"
end

在您希望使用新子域的位置将此步骤粘贴到Cucumber功能中.例如:

When I open the email
Then I should see "http://acme.rightbonus.com/users/confirmation" in the email body

Given I switch the subdomain to acme
When I follow "Click here to finish setting up your account" in the email
Then I should be on the user confirmation page for acme

现在进行神奇的monkeypatching使这项工作.基本上,您希望Capybara足够聪明,以检测子域何时更改并重置其RackTest会话对象.

# features/support/capybara.rb

class Capybara::Driver::RackTest
  # keep track of the default host you started with
  def initialize(app)
    raise ArgumentError,
      "rack-test requires a rack application, but none was given" unless app
    @app = app
    @default_host = Capybara.default_host
  end

  def process(method, path, attributes = {})
    reset_if_host_has_changed
    path = ["http://", @default_host, path].join
    return if path.gsub(/^#{request_path}/, '') =~ /^#/
    path = request_path + path if path =~ /^\?/
    send(method, to_binary(path), to_binary( attributes ), env)
    follow_redirects!
  end

  private

  def build_rack_mock_session # :nodoc:
    puts "building a new Rack::MockSession for " + Capybara.default_host
    Rack::MockSession.new(app, Capybara.default_host || "www.example.com")
  end

  def reset_if_host_has_changed
    if @default_host != Capybara.default_host
      reset! # clears the existing MockSession
      @default_host = Capybara.default_host
    end
  end
end

此补丁适用于Capybara 0.4.1.1,除非经过修改,否则可能不适用于不同的版本.祝好运.

Answer 2

如果您的需求不包含任何与会话有关的内容,并且您所访问的是访问不同的子域,那么我写了这个函数:

def visit_with_subdomain(uri, options = {})
  domain = Capybara.default_host
  port = Capybara.server_port
  subdomain = options[:subdomain]
  visit "http://#{subdomain}.#{domain}:#{port}#{uri}"
end

你可以这样称呼它:

visit_with_subdomain some_path, subdomain: some_subdomain