Launch Darkly Cypress Custom Command

commands.js

Cypress.Commands.add('checkFlag', key => {
  const env = Cypress.env('launchDarklyEnvironment')
  const projKey = 'default'

  cy.fixture('auth').then(auth => {
    const accessToken = auth.launchDarklyAccessToken
    cy.request({
      method: 'GET',
      url: `https://app.launchdarkly.com/api/v2/flags/${projKey}/${key}`,
      headers: {
        Authorization: accessToken
      },
      qs: `env=${env}`
    }).its(`body.environments.${env}.on`)
  })
})

example.cy.js

// Store Feature Flag value (retrieved from page object constructor method) as alias:
cy.checkFlag(addToBasket.basketNotificationFF).as('basketNotificationFF')

// Retrieve alias then skip steps based on Feature Flag boolean value
cy.get('@basketNotificationFF').then(basketNotificationFF => {
    skipOn(basketNotificationFF === true, () => {
        addToBasket.assertProductQuantityIsCorrect(1)
    })
})

// Import feature flags from enum file at top of spec file:
import {
    FeatureFlag
} from '../../../../src/config/constants/feature-flags'


// Only run test when FF is enabled (use inside it() block):
cy.checkFlag(FeatureFlag.CHECKOUT_PAYMENT_STRIPE_MULTIBANCO).then(
    multibancoStripeEnabled => {
        cy.onlyOn(multibancoStripeEnabled === true)
    }
)

// Skip all tests in block when FF is enabled:
before(() => {
    cy.checkFlag(FeatureFlag.ACCOUNT_FAVOURITES_GUEST_FAVOURITES).then(
        guestFavourites => {
            cy.skipOn(guestFavourites === true)
        }
    )
})