On each line of code containing some boolean expressions, the branch coverage simply answers the following question: 'Has each boolean expression been evaluated both to true and false?'. This is the density of possible branches in flow control structures that have been followed during unit tests execution.
It is a mix of Line coverage and Branch coverage. Its goal is to provide an even more accurate answer to the following question: 'How much of the source code has been covered by the unit tests?".
On a given line of code, Line coverage simply answers the following question: 'Has this line of code been executed during the execution of the unit tests?'. It is the density of covered lines by unit tests:
|Lines to cover||lines_to_cover||Number of lines of code which could be covered by unit tests (for example, blank lines or full comments lines are not considered as lines to cover).|
|New branch coverage||new_branch_coverage||Identical to Branch coverage but restricted to new / updated source code.|
|New coverage||new_coverage||Identical to Coverage but restricted to new / updated source code.|
|New line coverage||new_line_coverage||Identical to Line coverage but restricted to new / updated source code.|
|New lines to cover||new_lines_to_cover||Identical to Lines to cover but restricted to new / updated source code.|
|New uncovered lines||new_uncovered_lines||Identical to Uncovered lines but restricted to new / updated source code.|
|Skipped unit tests||skipped_tests||Number of skipped unit tests.|
|Uncovered branches||uncovered_branches||Number of branches which are not covered by unit tests.|
|Uncovered lines||uncovered_lines||Number of lines of code which are not covered by unit tests.|
|Unit tests||tests||Number of unit tests.|
|Unit tests duration||test_execution_time||Time required to execute all the unit tests.|
|Unit test errors||test_errors||Number of unit tests that have failed.|
|Unit test failures||test_failures||Number of unit tests that have failed with an unexpected exception.|
|Unit test success density (%)||test_success_density||Test success density = (tests - (test_errors + test_failures)) / tests * 100|
The same kinds of metrics exist for Integration tests coverage and Overall tests coverage (Units tests + Integration tests).
Metrics on tests execution does not exist for Integration tests and Overall tests.