Question

我有一个包含以下方法的Angular服务：

function ChangeEvent(){
  var calendarId = 'primary';
  var eventId = 'omv6###########e8jbs';
  var event = Calendar.Events.get(calendarId, eventId);
  Logger.log('old recurrence = '+event.recurrence);
  event.recurrence = '';
  Calendar.Events.patch(event,calendarId,eventId);
  Logger.log('new recurrence = '+event.recurrence);
}

如何测试$ mdDialog的 onComplete 回调？我设法测试是否调用了$ mdDialog.show但是我无法让测试回调起作用。

Answer 1

$mdDialog.show()在单元测试期间无法自行解决。要模拟该行为，您需要覆盖测试中的show方法并自行调用onComplete函数。一个简单的例子看起来像：

$mdDialog.show = function (options) {
  options.onComplete();
};

// Call your function
showDialog();

然而，这忽略了$mdDialog.show()通常返回的承诺。支持promise链的更完整的覆盖，即$mdDialog.show().then()，需要返回一个伪承诺并手动解析它：

// Create a dummy promise we can resolve manually
var deferred = $q.defer(); 

$mdDialog.show = function (options) {
  options.onComplete();

  // Return the dummy promise
  return deferred.promise;
};

// Call your function
showDialog();

// Resolve the promise, which won't actually be resolved until apply is called
deferred.resolve();
$rootScope.$apply();

$ mdDialog的单元测试onComplete回调

1 个答案: