Code Coverage
// Definition
The percentage of source-code lines, branches, or statements executed during a test run. A useful but easy-to-game metric — high coverage doesn't guarantee good tests.
// Related terms
Test Coverage
A measure of which parts of the requirements or features have been exercised by tests. Distinct from code coverage — focuses on the spec, not the source.
Quality Gate
An automated checkpoint in a build or deployment pipeline that blocks promotion if quality criteria (test pass rate, coverage threshold, security scan) aren't met.
Test Suite
A collection of related test cases organised for execution together — usually grouped by feature, layer (unit, integration, e2e), or test type (smoke, regression).
Learn more · CI/CD for QA Engineers
Chapter 5 · Lesson 3: Code Coverage and Test Coverage Reporting