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testing: clarify T.Parallel() godoc wording

Fixes #18914.

Change-Id: Iec90d6aaa62595983db28b17794429f3c9a3dc36
Reviewed-on: https://go-review.googlesource.com/36272
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Daniel Martí 2017-02-03 10:18:04 +00:00 committed by Ian Lance Taylor
parent 14347ee480
commit 3e366ec6a7

View File

@ -569,7 +569,9 @@ func (c *common) Skipped() bool {
} }
// Parallel signals that this test is to be run in parallel with (and only with) // Parallel signals that this test is to be run in parallel with (and only with)
// other parallel tests. // other parallel tests. When a test is run multiple times due to use of
// -test.count or -test.cpu, multiple instances of a single test never run in
// parallel with each other.
func (t *T) Parallel() { func (t *T) Parallel() {
if t.isParallel { if t.isParallel {
panic("testing: t.Parallel called multiple times") panic("testing: t.Parallel called multiple times")