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runtime: add more debug info to flaky TestNumGoroutine

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This has been flaking on the new OpenBSD 5.8 builders lately:
https://storage.googleapis.com/go-build-log/808270e7/openbsd-amd64-gce58_61ce2663.log
(as one example)

Add more debug info when it fails.

Updates #14107

Change-Id: Ie30bc0c703d2e9ee993d1e232ffc5f2d17e65c97
Reviewed-on: https://go-review.googlesource.com/18938
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This commit is contained in:
Brad Fitzpatrick 2016-01-27 00:09:50 +00:00
parent 09940b92a0
commit 9202e9e1b8
1 changed files with 1 additions and 1 deletions
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2
src/runtime/proc_test.go
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@ -350,7 +350,7 @@ func TestNumGoroutine(t *testing.T) {
n := runtime.NumGoroutine()
if nstk := strings.Count(string(buf), "goroutine "); n != nstk {
t.Fatalf("NumGoroutine=%d, but found %d goroutines in stack dump", n, nstk)
t.Fatalf("NumGoroutine=%d, but found %d goroutines in stack dump: %s", n, nstk, buf)
}
}