我正在使用Jasmine&Karma进行Angle app的单元测试。我已经写过这样的单元测试:
describe('#getAll', async () => {
it('#should return user intergration_tester', inject([UsersService], async(service: UsersService) => {
await service.getAll('integration_tester', access_token).subscribe(
user => {
expect(user[0].firstName).toContain('Integration');
done();
})
}));
it('#should return error 404', inject([UsersService], (service: UsersService) => {
service.getAll('integration_tester', '').subscribe(
user => {expect(user[0].firstName).not.toContain('Integration');},
err => { expect(err).toContain('error');}
)
}));
})
当我执行测试用例时,我看到一条消息SPEC HAS NO EXPECTATIONS对于这两个测试用例。我想知道为什么它显示规范没有期望。
然后,我遵循了本文中建议的解决方案:Spec has no expectations - Jasmine testing the callback function
使用done()
:
describe('#getAll', async () => {
it('#should return user intergration_tester', inject([UsersService], async(service: UsersService, done) => {
await service.getAll('integration_tester', access_token).subscribe(
user => {
expect(user[0].firstName).toContain('Integration');
done();
})
}));
it('#should return error 404', inject([UsersService], (service: UsersService, done) => {
service.getAll('integration_tester', '').subscribe(
user => {expect(user[0].firstName).not.toContain('Integration'); done();},
err => { expect(err).toContain('error'); done();}
)
}));
})
再次,茉莉花告诉我spec has no expectations
答案 0 :(得分:0)
等待订阅没有任何作用...
await service.getAll(...).subscribe(...)
您需要将可观察对象转换为Promise。另外,请确保您的可观察性完成,否则您只需要获取第一个元素,否则promise将永远无法解决(假设getAll继续发送事件或其他内容-但您应该在测试运行期间超时)。这应该可以解决问题:
describe('#getAll', async () => {
it('#should return user intergration_tester', inject([UsersService], async (service: UsersService) => {
const user = await service.getAll('integration_tester', access_token).toPromise();
expect(user[0].firstName).toContain('Integration');
}));
it('#should return error 404', inject([UsersService], async (service: UsersService) => {
try {
const user = await service.getAll('integration_tester', '').toPromise();
expect(user[0].firstName).not.toContain('Integration');
} catch (err) {
// why do you also expect an error to be thrown?
expect(err).toContain('error');
}
}));
})