我应该如何在 jasmine 单元测试中访问元素的 angularjs $ngModelController?

问题描述

我目前正在使用 directiveElement.data("$ngModelController") 来访问元素的 $ngModelController，如下例所示.

I'm currently using directiveElement.data("$ngModelController") to get access to the element's $ngModelController, as in the following example.

describe("directiveElement", function () {
  it("should do something with ngModelController", inject(function($compile, $rootScope) {
    var directiveElement = $compile("<input ng-model="myNgModel" customDirective type="text"></input>")($rootScope);
    $rootScope.$digest();
    var ngModelCtrl = directiveElement.data("$ngModelController");
    ngModelCtrl.$modelValue = "12345";
    // do rest of test
  }));
});

但是，我想知道访问 $ngModelController 是否更好，或者访问 $ngModelController 是否是一个坏主意?

However, I want to know if there is a better to access the $ngModelController, or if accessing the $ngModelController is a bad idea?

推荐答案

你也可以做 directiveElement.controller('ngModel').

我当然认为有合理的测试原因为什么您需要处理此问题，尽管更常见的方法是通过表单(例如 https://github.com/angular/angular.js/blob/master/test/ng/directive/formSpec.js)

I certainly think there are legitimate testing reasons why you would want a handle on this, though the more common way is to get a handle on it through the form (eg. https://github.com/angular/angular.js/blob/master/test/ng/directive/formSpec.js)

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