olemus
koodi täitmise marsruut programmis
= execution route of program: the set of specific instructions that are actually executed during a single run of a program or program fragment

näiteid
https://qph.fs.quoracdn.net/main-qimg-21a541d2fbf5437d6ecb6b882801d7dd

https://ifs.host.cs.st-andrews.ac.uk/Books/SE9/Web/Testing/PathTest.html