我应该如何在茉莉花单元测试中访问元素的angularjs $ ngModelController？ [英] How should I access an element's angularjs $ngModelController in a jasmine unit test?

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，我想知道是否有更好的访问 $ ngModelController ，或者如果访问 $ ngModelController 是个坏主意？

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理由可以解释为什么要对此进行处理，不过更常见的方法是通过表单处理它（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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