How Test Case Generation Works

SPECTRA generates test cases through a pipeline: read docs → analyze behaviors → AI generation → critic verification → write .md files.

Two ways to use it

Copilot Chat (recommended) — say “Generate test cases for checkout”. The bundled SKILL handles CLI invocation, progress tracking, and result presentation automatically.

CLI directly — spectra ai generate --suite checkout. Same pipeline. Useful for CI/CD and scripting.

Both run the same engine. Chat is the interface, CLI is the engine.

Why the CLI pipeline matters

The generation pipeline (doc loading, profile merging, ID allocation, batch generation, dual-model critic verification) runs as a single CLI process. This keeps the critic model independent from the generator — critical for catching hallucinations. Chat invokes this process through SKILLs rather than reimplementing it.