Dart Checks Migration

When to use this skill

Use this skill when:

• Migrating existing test files from package:matcher to package:checks.
• A user specifically asks for "modern checks" or similar.

The Workflow

1. Analysis:
   • Use grep to identify files using expect or package:matcher.
   • Review custom matchers; these may require manual migration.
2. Tools & Dependencies:
   • Ensure dev_dependencies includes checks.
   • Run dart pub add --dev checks if missing.
3. Discovery:
   • Use the Strategies for Discovery below to find candidates.
4. Replacement:
   • Add import 'package:checks/checks.dart';.