Why is it important to measure test coverage in a project?

Code coverage measurement is important because it shows which parts of the code were executed during testing. It helps to:

• Identify code areas not tested, which might contain bugs.
• Improve quality and reliability of the software.
• Reduce the risk of bugs in production.

However, a high coverage percentage does not guarantee bug absence but indicates the completeness of testing.

An example tool for measuring coverage in Python is coverage.py, which shows which lines of code were executed during tests.