我有指令myItem
。我想更改从父项传递到指令的一个属性,因此我在controller
中使用myItem
,其中我将值除以60。
网站上的一切正常。
define(['angular',
'core',
'ui-bootstrap',
],
function(angular, coreModule, uiBootStrap) {
'use strict';
function myItemDirective(APPS_URL) {
return {
restrict: 'E',
replace: 'true',
scope: {
item: '='
},
templateUrl: APPS_URL.concat('item.tpl.html'),
controller: ['$scope', function($scope) {
$scope.item.property = Math.round($scope.item.property / 60);
}]
};
}
return angular.module('apps.myItemModule', [coreModule.name])
.directive('myItem', ['APPS_URL', myItemDirective]); });
现在我想写一个测试,我可以检查指令中的渲染值是从父级传递的值除以60.
define([
'angular',
'angularMocks',
'apps/directives/mydirective' ], function (angular, mocks, myItemDirective) {
var $httpBackend, $controller, $rootScope, $scope, directive,
item = {
property: 60
};
describe('my directive', function () {
beforeEach(function() {
mocks.module(myItemDirective.name);
mocks.inject(function(_$rootScope_, $injector, $window) {
$rootScope = _$rootScope_;
$scope = $rootScope.$new();
$compile = $injector.get('$compile');
compileDirective();
});
});
afterEach(function() {
$scope.$destroy();
element.remove();
});
function compileDirective() {
element = angular.element('<my-item item=' + JSON.stringify(item) + '></my-item>');
directive = $compile(element)($scope);
$scope.$digest();
directiveScope = element.isolateScope();
}
it('test', function(){
// console.log(element.find('#item-holder').innerText)
// > 60
expect(element.find('#item-holder').innerText).toEqual(Math.round(item.propert/60));
// this will fail because item.property was not divided by 60
});
}); });
我无法在单元测试中使用值除以60来呈现指令。我可以在控制台中看到已调用指令中的controller
但该值未更改。
答案 0 :(得分:2)
问题与使用对象item
的相同引用的测试有关。
解决此问题:
item
移至beforeEach
$scope.$apply()
所以测试看起来像:
定义([ “角度”, 'angularMocks', 'apps / directives / mydirective'],函数(angular,mocks,myItemDirective){
var $httpBackend, $controller, $rootScope, $scope, directive,
item;
describe('my directive', function () {
beforeEach(function() {
item = {
property: 60
};
mocks.module(myItemDirective.name);
mocks.inject(function(_$rootScope_, $injector, $window) {
$rootScope = _$rootScope_;
$scope = $rootScope.$new();
$compile = $injector.get('$compile');
compileDirective();
});
});
afterEach(function() {
$scope.$destroy();
element.remove();
});
function compileDirective() {
$scope.item = item;
element = angular.element('<my-item item="item"></my-item>');
directive = $compile(element)($scope);
$scope.$apply();
directiveScope = directive.isolateScope();
}
it('test', function(){
// console.log(element.find('#item-holder').innerText)
// > 60
expect(element.find('#item-holder').innerText).toEqual(Math.round(item.propert/60));
// this will fail because item.property was not divided by 60
});
}); });