Inheritance: extends EnvironmentOwnedCollection
 protected function _createDomains()
 {
     $this->workflow = $this->getMockBuilder(Workflow::class)->disableOriginalConstructor()->getMock();
     $this->workflows = $this->getMockBuilder(Workflows::class)->disableOriginalConstructor()->getMock();
     $this->environment = $this->getMockBuilder(Environment::class)->disableOriginalConstructor()->getMock();
     $this->environment->method('getWorkflows')->willReturn($this->workflows);
     $this->environment->site = (object) ['id' => 'abc'];
     $this->environment->id = 'dev';
     $domains = new Domains(['environment' => $this->environment]);
     $domains->setRequest($this->request);
     $domains->setContainer($this->container);
     return $domains;
 }