score:1
Accepted answer
if you utilize a mock
(jest.fn()
), you can simply use tohavebeencalledwith
.
so in your case:
it("sends back error callback", () => {
const iserror = jest.fn();
render(<component callback={iserror} />);
const input = screen.getallbyrole("textbox")[0];
fireevent.change(input, { target: { value: "100.98" } });
expect(iserror).tohavebeencalledwith(false);
});
or use this alternative, especially if you have issue with the asynchronous nature of the code:
it("sends back error callback", (done) => {
const iserror = (val) => {
expect(val).tobe(false);
done();
};
render(<component callback={iserror} />);
const input = screen.getallbyrole("textbox")[0];
fireevent.change(input, { target: { value: "100.98" } });
});
read more about async code: https://jestjs.io/docs/asynchronous.
if you have any questions to my answer/or the answer is not working, please get back to me in the comments 😊.
Source: stackoverflow.com
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