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| author | Than McIntosh <thanm@google.com> | 2023-01-19 10:16:07 -0500 |
|---|---|---|
| committer | Than McIntosh <thanm@google.com> | 2023-01-20 21:41:45 +0000 |
| commit | cf70d37967b8447af8305e02ef534c4c5f42d49c (patch) | |
| tree | 1e15c50e6c1e9c224fa48990f54931d16cd72248 | |
| parent | 8bec956360d63d2f39d45a889b200c0dedfe96a0 (diff) | |
| download | go-cf70d37967b8447af8305e02ef534c4c5f42d49c.tar.xz | |
runtime/coverage: avoid non-test coverage profiles in test report helper
When walking through the set of coverage data files generated from a
"go test -cover" run, it's possible to encounter pods (clumps of data
files) that were generated by a run from an instrumented Go tool (for
example, cmd/compile). Add a guard to the test reporting code to
ensure that it only processes files created by the currently running
test.
Fixes #57924.
Change-Id: I1bb7dce88305e1088162e3cb1df628486ecee1c1
Reviewed-on: https://go-review.googlesource.com/c/go/+/462756
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
| -rw-r--r-- | src/runtime/coverage/testsupport.go | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/runtime/coverage/testsupport.go b/src/runtime/coverage/testsupport.go index 1d90ebd7a2..a481bbbd9d 100644 --- a/src/runtime/coverage/testsupport.go +++ b/src/runtime/coverage/testsupport.go @@ -15,6 +15,7 @@ import ( "internal/coverage/pods" "io" "os" + "strings" ) // processCoverTestDir is called (via a linknamed reference) from @@ -80,7 +81,15 @@ func processCoverTestDirInternal(dir string, cfile string, cm string, cpkg strin cf: cformat.NewFormatter(cmode), cmode: cmode, } + // Generate the expected hash string based on the final meta-data + // hash for this test, then look only for pods that refer to that + // hash (just in case there are multiple instrumented executables + // in play). See issue #57924 for more on this. + hashstring := fmt.Sprintf("%x", finalHash) for _, p := range podlist { + if !strings.Contains(p.MetaFile, hashstring) { + continue + } if err := ts.processPod(p); err != nil { return err } |