Cypress

• pass environment variables using the e2e.env config key, and access them using Cypress.env('key')
• if testing across origins (for example, with a redirect), wrap any code that needs to access the secondary origin in cy.origin
  • all arguments must be passed into the callback manually using the args option

it('should redirect to the login page on another origin`, () => {
   // base url http://example.com/
    cy.visit('/login')

    const loginDomain = Cypress.env('AUTH_DOMAIN')

    cy.origin(loginDomain, { args: { loginDomain } }, ({ loginDomain }) => {
        cy.url().should('include', loginDomain)
    })
})

• use the start-server-and-test package to start the dev server and run tests in one command