Cypress test to confirm a Firebase app correctly routes authed/unauthed users.

Projects.spec.js

describe('Projects Page', () => {
  describe('when not authenticated', () => {
    before(() => {
      // Attempt to go to /projects (requires user to be logged in)
      cy.visit('/projects')
    })
    it('Redirects to Home (/)', () => {
      cy.url().should('equal', '/')
    });
  })

  describe('when authenticated', () => {
    before(() => {
      // Login using custom token
      cy.login()
      // Go to /projects (which requires user to be logged in)
      cy.visit('/projects')
    })

    it('Does not redirect', () => {
      cy.url().should('equal', '/projects')
    })
  })
})