Jest useNavigate may be used only in the context of a router

While working with Jest and React-Testing-Library, you might encounter the following error:

useNavigate() may be used only in the context of a <Router> component

There are two reasons for the above error:

  1. The React component you trying to render, is being rendered without wrapping it with any React-router component wrapper such as: BrowserRouter, HistoryRouter or MemoryRouter.
  2. React-Router-Dom hooks aren’t mocked.

Solution

1- Wrap your component with React-Router component (based on your usage, it can be one of (BrowserRouter, HistoryRouter or MemoryRouter), as the following:

describe("App", () => {
  it("renders correctly", async () => {
    render(
      <BrowserRouter>
        <App />
      </BrowserRouter>
    );
  });
});

2- Mock React-Router hooks as the following:

const mockedUsedNavigate = jest.fn();

jest.mock("react-router-dom", () => ({
  ...(jest.requireActual("react-router-dom") as any),
  useNavigate: () => mockedUsedNavigate
}));

describe("App", () => {
  it("renders", async () => {
    render(
      <BrowserRouter>
        <App />
      </BrowserRouter>
    );

    // expect(mockedUsedNavigate).toHaveBeenCalledWith('/post-1');
  });
});

More details about How to mock React-Router-Dom hooks in Jest can be found on this link.


Photo from Unsplash.

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