Testing

Skill launch52-ai/flutter-template/.claude/skills/testing

Write, review, and audit tests for Flutter projects using Clean Architecture + Riverpod. Use when writing unit tests, widget tests, golden tests, reviewing test quality, checking test coverage, creating mocks/spies, or testing Riverpod providers.From its SKILL.md

Install

npx -y skills add launch52-ai/flutter-template --skill testing

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

2 stars2 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

SKILL.md

3.1 KB, 706 tokens by cl100k_base, as published. Nobody here has run it

Testing - Write & Review Tests

Write high-quality, maintainable tests following Clean Architecture patterns. Every test should clearly express intent and catch regressions without being brittle.

When to Use This Skill

Writing new tests (unit, widget, golden, integration)
Reviewing test code quality
Setting up test infrastructure (helpers, mocks, spies)
Testing Riverpod providers and notifiers
Auditing test coverage

Quick Reference

Test Types

Type	Purpose	When to Use
Unit	Isolated logic	Repositories, services, utils, providers
Widget	UI interactions	Screens, navigation
Golden	Visual regression	Layout, themes
Integration	Real implementations	Storage, cache, API flows

Naming Conventions

Type	Pattern	Example
File	`{component}_test.dart`	`auth_repository_impl_test.dart`
Test	`test_{subject}_{scenario}_{expected}`	`test_signIn_withValidCredentials_returnsAuthResult`
Factory	`any{Type}()`	`anyEmail()`, `anyUserProfile()`
SUT	`makeSUT()`	Creates System Under Test

Commands

# Run all tests
flutter test

# Run with coverage
flutter test --coverage

# Run specific type
flutter test test/unit/
flutter test test/widget/

# Audit test coverage
dart run .claude/skills/testing/scripts/check.dart

# Generate missing test files
dart run .claude/skills/testing/scripts/check.dart --generate

# Update golden files
flutter test --update-goldens test/golden/

Workflow

1. Create Test File

Mirror source path: test/unit/features/{feature}/data/repositories/{name}_test.dart

2. Write Tests Using Patterns

See patterns-guide.md for:

makeSUT() - Factory for System Under Test
Spy Pattern - Track method calls
Arrange-Act-Assert - Clear structure
Disposal Testing - Verify cleanup
Inbox Checklist - Infrastructure testing

3. Verify Coverage

dart run .claude/skills/testing/scripts/check.dart

Checklist

Structure:

Uses makeSUT() for consistent setup
Uses any*() factories for test data
Clear Arrange-Act-Assert structure

Coverage:

Tests success and error paths
Verifies side effects (storage, API calls)

Quality:

No hardcoded delays
No flaky assertions
Disposal tested

Coverage Expectations

Component	Minimum
Repositories	90%+
Providers	85%+
Utils	80%+
Widgets	60%+

Guides

Guide	Use For
patterns-guide.md	Test patterns, helpers, spies
examples.md	Before/after examples

Related Skills

/a11y - Accessibility tests (textContrastGuideline, etc.)

What ships with it: 14 files

179.4 KB alongside SKILL.md

reference/

flutter_test_config.dart381 B
golden/features/auth/presentation/screens/login_screen_golden_test.dart11.4 KB
helpers/fakes.dart12.1 KB
helpers/golden_helpers.dart8.0 KB
helpers/mocks.dart4.7 KB
helpers/pump_app.dart6.5 KB
helpers/riverpod_helpers.dart5.1 KB
helpers/test_helpers.dart4.8 KB
unit/features/auth/data/repositories/auth_repository_impl_test.dart11.6 KB
unit/features/auth/presentation/providers/auth_provider_test.dart11.3 KB
widget/features/auth/presentation/screens/login_screen_test.dart9.5 KB

scripts/

check.dart23.1 KB

examples.md23.6 KB
patterns-guide.md47.1 KB