角2.0.0-rc.1 +业力:提供RouteSegment [英] angular 2.0.0-rc.1 + karma: provide RouteSegment

问题描述

向组件注入RouteSegment时，仅在测试中提供RouteSegment是不够的:

When a component is injected with RouteSegment, just providing the RouteSegment in the test is not enough:

component.ts:

component.ts:

export class ComponentToTest {
  private param: string;

  constructor(routeSegment: RouteSegment) {
    this.param = routeSegment.getParam('param');
    this.getData();
  }
}

component.spec.ts:

component.spec.ts:

import {Router, RouteSegment} from '@angular/router';

import {it, inject, beforeEachProviders} from '@angular/core/testing';
import {ROUTER_FAKE_PROVIDERS} from '@angular/router/testing';

import {ComponentToTest} from './component';

describe('ComponentToTest', () => {
  beforeEachProviders(() => [
    ROUTER_FAKE_PROVIDERS,
    RouteSegment,
    ComponentToTest
  ]);

  it('should call getData() on contruct', inject([Router], (router) => {
    spyOn(ComponentToTest.prototype, 'getData');
    expect(ComponentToTest.prototype.getData).not.toHaveBeenCalled();
    let component = new ComponentToTest(router);
    expect(ComponentToTest.prototype.getData).toHaveBeenCalled();
  }));
});

将发生以下错误:

错误:无法解析"RouteSegment"的所有参数(?，?，?，?， ?).确保所有参数都用注入"或修饰"修饰 具有有效的类型注释，并且"RouteSegment"装饰有 可注射的.

Error: Cannot resolve all parameters for 'RouteSegment'(?, ?, ?, ?, ?). Make sure that all the parameters are decorated with Inject or have valid type annotations and that 'RouteSegment' is decorated with Injectable.

我不知道如何提供RouteSegment参数.

I have no idea on how to provide the RouteSegment parameters.

推荐答案

解决方案1 ​​

查看HomeBrew的答案

不是为我工作，还是不确定为什么.

Didn't work for me, still not sure why.

RouteSegment的模拟实现:

A mock implementation of RouteSegment:

class MockRouteSegment implements RouteSegment {
  urlSegments: any;
  parameters: any;
  outlet: string;
  _type: any;
  _componentFactory: any;
  type: any;
  stringifiedUrlSegments: string;
  constructor(parameters?: { [key: string]: any; }) {
    this.parameters = parameters
  }
  getParam(param: string) {
    return this.parameters[param];
  }
}

像这样提供它:

provide(RouteSegment, { useValue: new MockRouteSegment({ 'key': 'value' }) })

这篇关于角2.0.0-rc.1 +业力:提供RouteSegment的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！