Best Practices for Testing Code Under Feature Flags

Testing code under various flags is crucial in ensuring software quality and functionality. There are five main approaches to achieve this: creating a dedicated LaunchDarkly testing environment, setting the SDK to offline mode, using a Redis cache with LDD mode enabled, engineering a mock SDK for testing, or building a custom feature store for testing. Each approach has its own advantages and disadvantages, depending on factors such as scalability, control over flag configurations, and network requests made during testing.