stubbing-spying__window-fetch

Stubbing window.fetch

• Use cy.spy() to verify the behavior of a function.
• Use cy.stub() to verify and control the behavior of a function.
• Use cy.clock() and cy.tick() to control time.
• Stub window.fetch to control server responses.
• Replace window.fetch with a polyfill that uses XHR and is loaded only for tests

See individual spec files in cypress/integration folder.