Test pokrivenost mjeri koliko je koda izvršeno testovima — obično kao postotak (npr. 80% pokrivenosti). To je koristan metrički pokazatelj za pronalaženje netestiranog koda, ali važno je razumjeti njezina ograničenja: visoka pokrivenost ne jamči dobre testove.
Što pokrivenost mjeri
TEST COVERAGE = the % of code exercised by the test suite:
LINE coverage → % of code lines executed by tests
BRANCH coverage → % of branches (if/else paths) taken
FUNCTION coverage → % of functions called
STATEMENT coverage → % of statements executed
→ Coverage tools instrument the code and report what tests do/don't exercise.
