[英]Angular unit testing, for Observable errors
I am trying to errors in code coverage for service calls. 我正在尝试在服务调用的代码覆盖率方面出错。 I am following two approaches but doing some mistake. 我正在遵循两种方法,但是犯了一些错误。
below is my method for which I am writing test cases 下面是我编写测试用例的方法
setPrefixSuffixDetails(): void {
this.prefixSuffixDetailSubscription = this.profileBeneficiaryService.getPrefixSuffixDetails()
.subscribe(data => {
if (data.body.prefixlist.length > 0) {
this.prefixConfig.options = data.body.prefixlist;
}
if (data.body.suffixlist.length > 0) {
this.suffixConfig.options = data.body.suffixlist;
}
}, error => {
this.loadingData = false;
this.notificationService.addNotications(error);
});
}
For testing, I am creating providers, below are my providers 为了进行测试,我正在创建提供商,以下是我的提供商
{ provide: ProfileBeneficiaryService, useClass: ProfileServiceStub},
{provide: ProfileBeneficiaryService, useClass: ProfileBenficiaryErrorStub},
one is for success call and other is for error call. 一种用于成功调用,另一种用于错误调用。
beforeEach(async(() => {
TestBed.configureTestingModule({ .............
class ProfileBenficiaryErrorStub {
getPrefixSuffixDetails = function () {
return Observable.throw(Error('Test error'));
}}
class ProfileServiceStub {
getPrefixSuffixDetails = function () {
return Observable.of(this.data);
}
}
But the issue is when I use two providers it only covers for error, If I dont include the provider for error, it covering for success 但是问题是当我使用两个提供程序时,它仅涵盖错误;如果我不包括错误的提供程序,则涵盖成功
Please let me know where I am doing mistake using providers. 请让我知道我在使用提供程序时在哪里出错。
Also, I was trying to use spyOn way and facing error 此外,我试图使用spyOn方式并遇到错误
it('should check for the getPrefixSuffixDetails error call ', () => {
spyOn(ProfileBeneficiaryService,'getPrefixSuffixDetails').and.returnValue(Observable.throw('error'));});
Below solution worked for me 下面的解决方案为我工作
it('should check for the getPrefixSuffixList error call ', () => {
spyOn(profileDependentsService, 'getPrefixSuffixList').and.returnValue(Observable.throw('error'));
component.getPrefixSuffixList();
expect(profileDependentsService.getPrefixSuffixList).toHaveBeenCalled();
});
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.