// PrintCoverage writes out coverage metrics after a test run in a file tree setup.
// Only files that were covered by tests and not excluded are shown.
func PrintCoverage(state *core.BuildState, includeFiles []string) {
printf("${BOLD_WHITE}Coverage results:${RESET}\n")
totalCovered := 0
totalTotal := 0
lastDir := "_"
for _, file := range state.Coverage.OrderedFiles() {
if !shouldInclude(file, includeFiles) {
continue
}
dir := filepath.Dir(file)
if dir != lastDir {
printf("${WHITE}%s:${RESET}\n", strings.TrimRight(dir, "/"))
}
lastDir = dir
covered, total := test.CountCoverage(state.Coverage.Files[file])
printf(" %s\n", coveragePercentage(covered, total, file[len(dir)+1:]))
totalCovered += covered
totalTotal += total
}
printf("${BOLD_WHITE}Total coverage: %s${RESET}\n", coveragePercentage(totalCovered, totalTotal, ""))
}
// PrintCoverageReport writes out line-by-line coverage metrics after a test run.
func PrintLineCoverageReport(state *core.BuildState, includeFiles []string) {
coverageColours := map[core.LineCoverage]string{
core.NotExecutable: "${GREY}",
core.Unreachable: "${YELLOW}",
core.Uncovered: "${RED}",
core.Covered: "${GREEN}",
}
printf("${BOLD_WHITE}Covered files:${RESET}\n")
for _, file := range state.Coverage.OrderedFiles() {
if !shouldInclude(file, includeFiles) {
continue
}
coverage := state.Coverage.Files[file]
covered, total := test.CountCoverage(coverage)
printf("${BOLD_WHITE}%s: %s${RESET}\n", file, coveragePercentage(covered, total, ""))
f, err := os.Open(file)
if err != nil {
printf("${BOLD_RED}Can't open: %s${RESET}\n", err)
continue
}
defer f.Close()
scanner := bufio.NewScanner(f)
i := 0
for scanner.Scan() {
if i < len(coverage) {
printf("${WHITE}%4d %s%s\n", i, coverageColours[coverage[i]], scanner.Text())
} else {
// Assume the lines are not executable. This happens for python, for example.
printf("${WHITE}%4d ${GREY}%s\n", i, scanner.Text())
}
i++
}
printf("${RESET}\n")
}
}