enzyme mount is not working for component

1it('should display message retrieved with ajax request', 
2    async (done) => {
3       const fakePromise = Promise.resolve(mockResponse(
4           200,
5           null,
6           JSON.stringify({message: message})
7        ));
8        window.fetch = jest.fn().mockImplementationOnce(() => {
9            return fakePromise
10        });
11        expect.assertions(2); //check if all assertions called
12        const info = mount(<Info infoUrl = {url} />);
13        await Promise.all([fakePromise]);
14        setImmediate(() => {
15            try {
16                expect(info).toHaveState('message', message);
17                expect(info).toIncludeText(message);
18            } catch (e) {
19                done.fail(e);
20            }
21            done();
22        });
23    });
24