Testing Strategies: Code Coverage and Quality

This lecture discusses various testing strategies, focusing on the importance of code coverage and quality in software development. The instructor begins by explaining the role of counters in tracking code execution during tests. A recap of testing methodologies is provided, including unit testing, integration testing, and system testing, illustrated with examples of code coverage graphs. The instructor emphasizes the significance of understanding control flow graphs to identify which parts of the code are executed during tests. The lecture highlights the need for high-quality tests that are small and focused, verifying one aspect at a time to facilitate easier debugging. The instructor also discusses the importance of independent unit tests to avoid dependencies that could affect test outcomes. Throughout the lecture, the instructor uses visual aids to illustrate concepts, providing a comprehensive overview of how to assess and improve code quality through effective testing practices.