Test Coverage
A measure or description of which code paths requirements risks or behaviors are exercised by tests.
Plain English
How much of the relevant product or code the tests actually check.
In context
Coverage can reveal untested areas but should be interpreted with test quality assertions risk and the kind of coverage measured.
Example
“Branch coverage exposed an untested authorization failure path.”
When you'll hear this
- quality reviews
- continuous integration
- test planning
Common misunderstanding
A high coverage percentage does not prove that tests assert the correct behavior or find important defects.
Also known as
code coveragecoverage
Commonly used by
Related terms
Updated: 2026-08-27
