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testing: don't fail all tests after racy test failure

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The code was adding race.Errors to t.raceErrors before checking
Failed, but Failed was using t.raceErrors+race.Errors. We don't want
to change Failed, since that would affect tests themselves, so modify
the harness to not unnecessarily change t.raceErrors.

Updates #19851
Fixes #21338
Change-Id: I7bfdf281f90e045146c92444f1370d55c45221d4
Reviewed-on: https://go-review.googlesource.com/54050
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Ian Lance Taylor 2017-08-08 15:50:43 -07:00
parent a14a8a3eb9
commit a1371756c3
2 changed files with 22 additions and 2 deletions
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3
src/testing/testing.go
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@ -697,8 +697,7 @@ func tRunner(t *T, fn func(t *T)) {
// a call to runtime.Goexit, record the duration and send
// a signal saying that the test is done.
defer func() {
t.raceErrors += race.Errors()
if t.raceErrors > 0 {
if t.raceErrors+race.Errors() > 0 {
t.Errorf("race detected during execution of test")
}