this.mobilityService.currentMessage.subscribe 不是 angular 单元测试中的函数

Question

在 karma 单元测试中我得到 this.mobilityService.currentMessage.subscribe is not a function 错误

下面是我试图通过服务从另一个组件获取值的 .ts 文件

  constructor(private projectService: ProjectService, private teamService: TeamserviceService) {this.getData()}

getData(){
this.projectService.currentMessage.subscribe(data => {
  if(data!=null)
  {
    this.serviceName=data.service_object.serviceName;
    this.serviceId = data.service_object.id})

这是我的服务代码的样子 -

messageSource = new BehaviorSubject(null);
currentMessage = this.messageSource.asObservable();
getProjectList(messageSource: string[]) {
this.messageSource.next(messageSource);
}
 constructor(private http:HttpClient) {
 getAllProjectService(teamid,serviceid){
 return this.http.get(environment.TEST_AUTOMATION_ENDPOINT+'/api/projects-by-team-and-servicestore? 
teamId='+teamid+'&serviceStoreId='+serviceid+'&access_token='+this.decaccesstoken);
 }
 }

我的 .spec 文件我正在创建一个像这样的间谍对象 -

  const mockProjectService= jasmine.createSpyObj('projectService', ['getAllProjectService','currentMessage']);

因为 'currentMessage' 不是服务内部的方法，所以我得到了这个错误。知道如何订阅服务内的变量吗？

Answer 1

将您的服务代码更改为：

messageSource = new BehaviorSubject(null);

currentMessage() {
    return this.messageSource.asObservable();
}
getProjectList(messageSource: string[]) {
      this.messageSource.next(messageSource);
}
 constructor(private http:HttpClient) {
 getAllProjectService(teamid,serviceid){
       return this.http.get(environment.TEST_AUTOMATION_ENDPOINT+'/api/projects-by-team- 
       and-servicestore?teamId='+teamid+'&serviceStoreId='+serviceid+'&access_token='+this.decaccesstoken);
 }
 }

this.mobilityService.currentMessage.subscribe 不是 angular 单元测试中的函数

this.mobilityService.currentMessage.subscribe is not a function in angular unit testing

unit-testing

observable

jasmine

karma-runner

angular