如何在behat 3中的上下文之間進行通信？

Question

我不能使用getMainContext（）和getSubcontext（$化名）在3個版本了。在版本3中的上下文之間進行通信的方式是什麼？上下文特徵是唯一的方式嗎？

# behat.yml 
default: 
    suites: 
     guest_features: 
       paths: [ %paths.base%/features/web ] 
       filters: { role: guest } 
       contexts: [ GuestContext ] 

     user_features: 
      paths: [ %paths.base%/features/web ] 
      filters: { role: member } 
      contexts: [ MemberContext ] 

     groupled_features: 
      paths: [ %paths.base%/features/web ] 
      filters: { role: grouplead} 
      contexts: [ GroupleadContext ] 

     admin_features: 
      paths: [ %paths.base%/features/web ] 
      filters: { role: admin } 
      contexts: [ AdminContext ] 

extensions: 
    Behat\MinkExtension: 
     base_url: http://ollo.com 
     browser_name: firefox 
     selenium2: 
       capabilities: { "browser": "firefox", "version": "24"} 
     goutte: ~ 

Answer 1

您可以使用scenario hooks，如"Accessing contexts from each other"文檔頁面解釋說：

use Behat\Behat\Context\Context; 
use Behat\Behat\Hook\Scope\BeforeScenarioScope; 

class MemberContext implements Context 
{ 
    /** @var GuestContext */ 
    private $guestContext; 


    /** @BeforeScenario */ 
    public function before(BeforeScenarioScope $scope) 
    { 
     // Get the environment 
     $environment = $scope->getEnvironment(); 
     // $environment is an instance of 
     //  Behat\Behat\Context\Environment\InitializedContextEnvironment 


     // Get all the contexts you need in this context 
     $this->guestContest = $environment->getContext('GuestContext'); 
     // $this->guestContest is the instance of GuestContext 
    } 
}