Code Cover­age

When ??, one ques­tion is: when have we test­ed e­nough. Code cover­age tries to an­swer this ques­tion. Code cover­age is a measure of al­l lines, branch­es or in­struc­tion­s covered by the test-suit­e, with the hope that if we ex­er­cise al­l code, we might have found al­l bugs.

See more here: