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name: test-repository description: Guide for testing repository layer. Use when asked to test repositories or data access layer. Directs to implementation-specific testing skills.

Test Repository

Important: We Test Implementations, Not Interfaces

Repository interfaces (I{Entity}Repository) define contracts but contain no logic to test. We test the implementations that fulfill these contracts.

When to Test

Test repository implementations after you have:

1. Created the repository interface (create-repository skill)
2. Implemented at least one concrete implementation

Which Skill to Use

Testing Strategy

Each implementation should be tested to verify it correctly fulfills the interface contract:

• CRUD operations: create, findById, findAll, update, remove
• Query features: filtering, pagination, sorting, search
• Edge cases: not found returns null, delete non-existent returns false
• Implementation-specific: MongoDB indexes, MockDB in-memory behavior

See Also

• test-mockdb-repository - Testing MockDB implementations
• test-mongodb-repository - Testing MongoDB implementations (includes test infrastructure setup)