You’re developing a Cloud Function triggered by Cloud Storage events and want faster local testing following Google best practices. What should you do?

The Functions Frameworks library allows you to run Cloud Functions locally, simulating the Cloud Functions environment. This enables rapid iteration and testing without deploying to Google Cloud. You can then use curl or similar tools to send mock Cloud Storage event payloads to your local function. The other options are less efficient or follow poor practices: Rewriting to HTTP-triggered functions for testing adds unnecessary complexity and doesn't accurately test the Cloud Storage trigger logic. Using Cloud Audit Logs to trigger another function is an overly complex and indirect testing method. Testing in production by modifying a web application is highly discouraged as it introduces risk and is not a local testing strategy.