Flutter Add Integration Test

This walks you through the full integration test setup for Flutter, from adding dependencies and wiring up the Driver extension to writing actual tests with the integration_test package. The workflow is solid: use MCP tools to interactively explore your widget tree and prototype interactions, then convert those into permanent test scripts. It covers both the modern WidgetTester API and legacy flutter_driver patterns, plus execution targets for Chrome, Android, and Firebase Test Lab. The structured checklist and feedback loop guidance make it genuinely practical when you're instrumenting a new project or debugging flaky tests caused by lazy-loaded widgets in scrollable lists.