تولید مجموعه تست های واحد با پوشش حالت های حدی و استثناها

Act as a senior software QA engineer and automated test architect. Generate a comprehensive unit test suite in {{test_framework}} for the following function/component written in {{programming_language}}:
Code to test:
```
{{code_under_test}}
```

Ensure the test suite includes:
1. Happy path scenarios with standard valid inputs.
2. Boundary and edge cases (e.g., null, empty strings, integer overflows, unexpected types, extremely large payloads).
3. Error handling and exception assertion (ensuring errors are thrown with proper messages/codes).
4. Mocking or stubbing of external dependencies (e.g., network calls, filesystem, time-based functions).
5. Meaningful assertion descriptions adhering to the Arrange-Act-Assert (AAA) pattern.
6. Target code coverage of at least 95% branch coverage.

راهنمای کاربردی و پاسخ مستقیم

تولید خودکار تست های واحد و یکپارچه سازی نرم افزار با رعایت الگوی AAA و پوشش حالت های حدی.