posthog/cypress/README.md

Testing Feature Flags

The Cypress tests run with a PostHog instance that has no feature flags set up.

To test feature flags you can intercept the call to the decide endpoint

  // sometimes the system under test calls `/decide`
  // and sometimes it calls https://app.posthog.com/decide
  cy.intercept(/.*\/decide\/.*/, (req) =>
      req.reply(
          decideResponse({
                // add feature flags here, for e.g.
                // 'feature-flag-key': true,
          })
      )
  )