restoreHandlers()

1describe('Book detail', () => {
2  before(() => {
3    cy.window().then((window) => {
4      const { worker, rest } = window.msw
5
6      worker.use(
7        rest.get('/book/:bookId', (req, res, ctx) => {
8          return res.once(
9            ctx.status(500),
10            ctx.json({ message: 'Internal server error' }),
11          )
12        }),
13      )
14    })
15
16    cy.visit('/book/abc-123')
17  })
18
19 afterEach(() => {
20    return cy.window().then((window) => {
21      const { worker } = window
22      worker.restoreHandlers()
23    })
24  })
25  
26  test('handles server error in the UI', () => {
27    // Initial page load will trigger a one-time request handler override
28    // to "GET /book/:bookId" request handler declared in the
29    // `before` hook above.
30  })
31
32  test('renders book details', () => {
33    // Requests to "GET /book/:bookId" in this test will trigger a one-time request handler override
34    // again, because the `.restoreHandlers()` call restore to a unused one-time request handler
35  })
36})