如何修复 EmberJS 集成测试的"服务注入"？

Question

我有一个使用"当前用户"服务的任务表组件。我将服务注入组件，如下所示

import { inject as service } from '@ember/service';
export default Component.extend({
currentUser: service(),
showBatchAction: computed('[e-mail]', function() {
return this.get('currentUser.user.directRoles').toArray().some((role) => {
return (role.id == 13) || (role.id == 15)
});
}),
});

代码工作正常，但是集成测试失败。

测试：

module('Integration | Component | tasks-table export csv button', function(hooks) {
setupRenderingTest(hooks);
hooks.beforeEach(function() {
run(() => {
this.owner.unregister('service:current-user');
});
this.owner.register('serivce:current-user', Service.extend({
user: EmberObject.create({
first_name: 'Bob',
last_name: 'Newby',
role: 'client',
directRoles: {title: 'employee', id: 1}
})
}));
});
test('it renders', async function(assert) {
var component = this.subject({
authManager: stubMyService.create()
});
await render(hbs `{{tasks-table}}`);
assert.equal(this.$('.export-csv').text().trim(), 'Export as CSV');
});
});

我得到的错误是：TypeError：undefined不是一个对象(评估'this.get('currentUser.user.directRoles'(.toArray'(

Answer 1

directRoles不是一个数组？你怎么会在对象上循环(某种方法(。通过说object.toArray((不起作用。