Error: Expected one matching request for criteria no parameters

Question

I've found several answers to this problem, but all of them involve having parameters and not including them on the call. But my case is different because I do not have parameters.

According to all the material, I have consulted, I cannot find what I'm doing wrong.

Basically, it is this:

in the service I'm testing, I have a call like this:

public getData(): Observable<string[][]> {
    const url = `${this.config.baseUrl}/data/`;
    return this.http.get<string[][]>(url);
  }

in providers of the spec file

{ provide: ConfigService, useValue: { baseUrl: '/base-url', tokenAuth: true } },

and

httpMock = TestBed.inject(HttpTestingController);
service = TestBed.inject(DataService);

and the test

it('should return the values of data when calling the API,' done => {
    const mockValue: [['data1','data2'],['data3','data4'],['data5','data6']];

    const sub = service.getData().subscribe(
      value => {
        expect(value).toHaveLength(3);
        httpMock.verify();
        done();
      },
      error => {
        throw error;
      },
    );
    subs.add(sub);

    httpMock.expectOne('/base-url/data').flush(mockValue);
  });

But when I ran the test, I received the following:

Expected one matching request for criteria "Match URL: /base-url/data/", found none.