What is Code Coverage?
A measurement of how much of your code is tested by automated tests, expressed as a percentage.
Why It Matters
Code coverage helps identify untested areas of your application that might contain hidden bugs.
Real-World Example
A project with 80% code coverage means 80% of all code lines are executed during testing.
“Understanding terms like Code Coverage matters because it helps you have better conversations with developers and make smarter decisions about your software. You do not need to be technical. You just need to know enough to ask the right questions.”
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Related Terms
Unit Test
A test that checks if a small piece of code works correctly in isolation
Testing
Verifying that your code works correctly through automated checks
Test-Driven Development (TDD)
A development approach where you write tests before writing the actual code.
Integration Test
A test that checks if multiple parts of your system work correctly together
E2E Test
End-to-end test that simulates a real user completing tasks in your application
Behaviour-Driven Development (BDD)
A development approach that describes software behaviour in plain English scenarios that serve as both documentation...