Dev Testing (Consolidated: Gates 3-7)

This skill consolidates the 5 testing gates from the Ring development cycle. In the official Ring, these are separate skills (dev-unit-testing, dev-fuzz-testing, dev-property-testing, dev-integration-testing, dev-chaos-testing). This consolidated version provides all testing gate content in a single file for OpenCode compatibility.

Gate 3: Unit Testing

Dev Unit Testing (Gate 3)

Overview

Ensure every acceptance criterion has at least one unit test proving it works. Follow TDD methodology: RED (failing test) -> GREEN (implementation) -> REFACTOR.

Core principle: Untested acceptance criteria are unverified claims. Each criterion MUST map to at least one executable unit test.