[AngularJS + Unit Testing] Testing Directive's controller with bindToController, controllerAs and is...

最新推荐文章于 2025-08-13 21:05:35 发布

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最新推荐文章于 2025-08-13 21:05:35 发布

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文章标签： javascript ViewUI

本文详细介绍了如何使用Angular创建自定义指令，并通过实例展示了如何在组件中使用这些指令来增强应用程序的功能。

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<div>
    <h2>{{vm.userInfo.number}} - {{vm.userInfo.name}}</h2>
</div>

'use strict';

class CardTitleInformCtrl {

    constructor() {

    }
}

function CardTitleInformDirective() {
    return {
        restrict: 'EA',
        scope: {},
        bindToController: {
            userInfo: '='
        },
        replace: true,
        template: require('./card-title-inform.html'),
        controller: CardTitleInformCtrl,
        controllerAs: 'vm'
    };
}

export default (ngModule) => {
    ngModule.directive('comCardTitleInform', CardTitleInformDirective);
};

Test:

export default (ngModule) => {
    describe('card title inform test', () => {

        var $scope, $compile, html, directiveName, directiveElm, controller;
        html = '<com-card-title-inform userInfo="userInfo"></com-card-title-inform>',
        directiveName = 'comCardTitleInform';

        beforeEach(window.module(ngModule.name));
        beforeEach(inject(function(_$compile_, _$rootScope_){
            $scope = _$rootScope_.$new();
            $compile = _$compile_;

            directiveElm = $compile(angular.element(html))($scope);
            controller = directiveElm.controller(directiveName);
            $scope.$digest();
        }));

        it('should has an h2 element with text 888-888-888 - Wan', function () {

            // Assign the data to the controller -- Because we use bindToController
            controller.userInfo = {
                name: "Wan",
                number: "888-888-888"
            };
            // ControllerAs as 'vm', assign controller to the $scope.vm
            $scope.vm = controller;
            // Make it work
            $scope.$digest();

            expect(directiveElm.find('h2').text()).toEqual(controller.userInfo.number + ' - ' +controller.userInfo.name);
        });
    });
};