/testing--test-fix

Reads a file and writes unit tests covering normal use, edge cases and errors in your existing framework, then runs them to check they pass.

Generates integration tests that exercise real interactions between components, APIs and databases, including partial failures and retries.

Creates mocks, stubs, spies, fakes and realistic fixture data for your code's dependencies, following Jest, Vitest, pytest or Go conventions.

Sets up screenshot comparison against approved baselines to catch unintended UI changes, with CI integration and flakiness control.

Builds a benchmark with warmup, repetition and statistics to measure or compare performance, optionally with a CI regression gate.

Converts data between JSON, YAML, TOML, XML, CSV and ENV, or into TypeScript interfaces, JSON Schema or Zod, and validates the output.