Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
1.1k views
in Technique[技术] by (71.8m points)

reactjs - How to mock useState in react testing library?

I need to test a RegisterForm component. Shown below where it is.

export const RegisterContainer = () => {
  const [formStep, setFormStep] = useState(0);

  return (
    <Wrapper>
      <MyPartic />
      <Container>
        <Stepper step={formStep} />
        <Inner>
          <RegisterForm
            step={formStep}
            setStep={setFormStep}
          />

In the RegisterForm, the setStep is called 1 time to change step to 2. How can I mock this action? Tried doing like this

        const onSubmit = jest.fn();

        let step = 0;
        const setStep = jest.fn();

        render(<RegisterForm step={step} setStep={setStep} handleSubmit={onSubmit} />);

        const values = {
            email: "[email protected]",
            firstName: "firstName",
            lastName: "lastName",
            password: "Password123",
            confirmPassword: "Password123"
        }

        userEvent.type(screen.getByPlaceholderText(/имя/i), values.firstName);
        userEvent.type(screen.getByPlaceholderText(/фамилия/i), values.lastName);

        userEvent.click(screen.getByText(/продолжить/i));
        step = 1;

        await waitFor(() => {
            expect(setStep).toHaveBeenCalledWith(1);
            screen.debug();
        })

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)
等待大神答复

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...