The Coverage Loop: Turning Free AI Tokens into Verified C++ Tests

Описание и применение

Цикл обратной связи с AI позволяет достичь высокого покрытия тестами, используя бесплатные токены.

Задача

Generated tests from free AI models often lack assertions and coverage, leading to ineffective unit tests.

Результат

The loop reached 90% line coverage for the string utility by iteratively refining AI-generated tests based on coverage feedback.

Рабочий процесс

• Send header to AI model asking for tests
• Compile and run the generated tests
• Run gcov to measure line coverage
• Extract missing lines from gcov output
• Feed missing line hints back to the AI and repeat until coverage plateaus

Доказательства

Five steps. Each one is small.

Источник

The target: a small C++ string utility. The goal: reach 90% line coverage with generated tests.

Источник