Designs and writes tests that catch real regressions — placement (unit/integration/E2E), factories and fixtures, behavior-first assertions, characterization tests for legacy code, property/fuzz tests for parsers. Use when asked to 'write tests', 'add test coverage', 'test this module', 'напиши тесты
Designs and writes tests that catch real regressions — placement (unit/integration/E2E), factories and fixtures, behavior-first assertions, characterization tests for legacy code, property/fuzz tests for parsers. Use when asked to 'write tests', 'add test coverage', 'test this module', 'напиши тесты', when a bug fix needs its regression test, or when awesome-bug-fix, awesome-code-review, or awesom