Test Coverage

Code Coverage

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.

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).

Test Plan

A document describing the scope, approach, schedule, resources, and deliverables for testing a release or feature. Narrower and more time-bound than a test strategy.