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testing: document that Log and Logf always print in benchmarks

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Fixes #10713.

Change-Id: Ifdafc340ae3bba751236f0482246c568346a569c
Reviewed-on: https://go-review.googlesource.com/9763
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Rob Pike 2015-05-06 13:19:30 -07:00
parent 17db6e0420
commit e9827f6201
1 changed files with 6 additions and 4 deletions
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10
src/testing/testing.go
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@ -342,13 +342,15 @@ func (c *common) log(s string) {
}
// Log formats its arguments using default formatting, analogous to Println,
// and records the text in the error log. The text will be printed only if
// the test fails or the -test.v flag is set.
// and records the text in the error log. For tests, the text will be printed only if
// the test fails or the -test.v flag is set. For benchmarks, the text is always
// printed to avoid having performance depend on the value of the -test.v flag.
func (c *common) Log(args ...interface{}) { c.log(fmt.Sprintln(args...)) }
// Logf formats its arguments according to the format, analogous to Printf,
// and records the text in the error log. The text will be printed only if
// the test fails or the -test.v flag is set.
// and records the text in the error log. For tests, the text will be printed only if
// the test fails or the -test.v flag is set. For benchmarks, the text is always
// printed to avoid having performance depend on the value of the -test.v flag.
func (c *common) Logf(format string, args ...interface{}) { c.log(fmt.Sprintf(format, args...)) }
// Error is equivalent to Log followed by Fail.