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| author | Dean Deng <deandeng@google.com> | 2021-04-16 17:52:12 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-04-16 17:56:16 -0700 |
| commit | 0c3e8daf503e011f0ef3e2a1c6d8b6ffd946acab (patch) | |
| tree | 31e2eb139d91d463a0468f24d24832783bca698e /test/runner | |
| parent | ee45334f147c9d5ff75d10c619c9c99ce4ba51ca (diff) | |
Allow runsc to generate coverage reports.
Add a coverage-report flag that will cause the sandbox to generate a coverage
report (with suffix .cov) in the debug log directory upon exiting. For the
report to be generated, runsc must have been built with the following Bazel
flags: `--collect_code_coverage --instrumentation_filter=...`.
With coverage reports, we should be able to aggregate results across all tests
to surface code coverage statistics for the project as a whole.
The report is simply a text file with each line representing a covered block
as `file:start_line.start_col,end_line.end_col`. Note that this is similar to
the format of coverage reports generated with `go test -coverprofile`,
although we omit the count and number of statements, which are not useful for
us.
Some simple ways of getting coverage reports:
bazel test <some_test> --collect_code_coverage \
--instrumentation_filter=//pkg/...
bazel build //runsc --collect_code_coverage \
--instrumentation_filter=//pkg/...
runsc -coverage-report=dir/ <other_flags> do ...
PiperOrigin-RevId: 368952911
Diffstat (limited to 'test/runner')
| -rw-r--r-- | test/runner/runner.go | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/test/runner/runner.go b/test/runner/runner.go index a8a134fe2..d314a5036 100644 --- a/test/runner/runner.go +++ b/test/runner/runner.go @@ -252,6 +252,7 @@ func runRunsc(spec *specs.Spec) error { debugLogDir += "/" log.Infof("runsc logs: %s", debugLogDir) args = append(args, "-debug-log", debugLogDir) + args = append(args, "-coverage-report", debugLogDir) // Default -log sends messages to stderr which makes reading the test log // difficult. Instead, drop them when debug log is enabled given it's a |