956f8a67dd
The existing testpoint TestCoverageSnapshot will fail if we happen to
be selecting a set of packages for inclusion in the profile that don't
include internal/coverage/cfile. Example:
$ cd `go env GOROOT`
$ cd src/internal/coverage
$ go test -coverpkg=internal/coverage/decodecounter ./...
...
--- FAIL: TestCoverageSnapshot (0.00s)
ts_test.go:102: 0.276074 0.276074
ts_test.go:104: erroneous snapshots, C1 >= C2 = true C1=0.276074 C2=0.276074
To ensure that this doesn't happen, extract the test in question out
into a separate file with a special build tag, and then have the
original testpoint do a "go test -cover -tags ... " run to make sure
that for that specific test run the cfile package is instrumented.
Fixes #67951.
Change-Id: I8ac6e07e1a6d93275b8c6acabfce85e04c70a102
Reviewed-on: https://go-review.googlesource.com/c/go/+/592200
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
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| src | ||
| test | ||
| .gitattributes | ||
| .gitignore | ||
| codereview.cfg | ||
| CONTRIBUTING.md | ||
| go.env | ||
| LICENSE | ||
| PATENTS | ||
| README.md | ||
| SECURITY.md | ||
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