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bootstrapping-your-app

Shows how end-to-end tests can inject data into the application

  • Use cy.visit() onBeforeLoad callback.
  • Start your application with test data.
  • Stub an XHR to seed with test data.
  • Wait on an XHR to finish.

See cypress/e2e/bootstrapping_your_app_spec.cy.js for two solutions.

1. Injecting object into window

In bootstrap.hbs the application renders into the page an object stored in window._bootstrappedData. The end-to-end tests against /bootstrap.html check the default data and also inject their own data us cy.visit() onBeforeLoad callback.

2. Mocking data returned by XHR call

In xhr.hbs the application makes a separate call to get the data to display. The end-to-end tests can stub the call and inject an object loaded from the fixture file cypress/fixtures/bootstrap.json

Development

  1. Start the local server
npm start

This servers a page at http://localhost:7070/bootstrap.html and another example page at http://localhost:7070/xhr.html

  1. Open Cypress GUI
npm run cypress:open

tip: to start both the local server and open Cypress GUI at once use (useful for development)

npm run dev