无法抓住protractor.promise.defer.reject

Question

我是量角器新手。我想从protractor.promise.defer.reject

var action = function(){ 
      var defer = protractor.promise.defer() 
      ASYN_POST(function(result){ 
       if(result){ 
       defer.fulfill(); 
       }else{ 
       defer.reject(new Error('post failure')); 
       }; 
      }); 
      return defer.promise; 
      }; 
it('example', function(done){ 
    action().then(console.log).catch(function(){ 
     console.log('catch you'); 
    }); 
}); 

当执行else分支

捕获异常，捕捉功能亘古不被调用。我如何修复我的代码。感谢

输出：

defer.reject(new Error('catch you')); 
         ^
Error: downgrading failure 
    at Request._callback (/vagrant/vosaas438/spec/versions-api.spec.js:93:26) 
    at Request.self.callback (/usr/local/lib/node_modules/request/request.js:199:22) 
    at emitTwo (events.js:87:13) 
    at Request.emit (events.js:172:7) 

Answer 1

我还与.catch烦恼（）。尝试为.then提供第二个函数（callbackForSuccess，callbackForReject）;它也将被用作拒绝的回调。

it('example', function(done){ 
    action().then(console.log, function(){ 
     console.log('catch you'); 
    }); 
});