Dart Test Coverage

---
name: dart-collect-coverage
description: Collect coverage using the coverage packge and create an LCOV report
metadata:
  model: models/gemini-3.1-pro-preview
  last_modified: Fri, 24 Apr 2026 15:14:32 GMT
---
# Implementing Dart and Flutter Test Coverage

## Contents
- [Testing Fundamentals](#testing-fundamentals)
- [Coverage Directives](#coverage-directives)
- [Workflow: Configuring and Generating Coverage Reports](#workflow-configuring-and-generating-coverage-reports)
- [Workflow: Advanced Manual Coverage Collection](#workflow-advanced-manual-coverage-collection)
- [Examples](#examples)

## Testing Fundamentals

Structure your test suites using the standard Dart testing paradigms. Use `package:test` for Dart projects and `flutter_test` for Flutter projects.

- **Unit Tests:** Verify individual functions, methods, or classes.
- **Component/Widget Tests:** Verify component behavior, layout, and interaction using mock objects (`package:mockito`).
- **Integration Tests:** Verify entire app flows on simulated or real devices.

## Coverage Directives… install to load the full skill