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testing: mention in docs for Logf that a final newline is added if needed

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Fixes #16423

Change-Id: I9635db295be4d356d427adadd309084e16c4582f
Reviewed-on: https://go-review.googlesource.com/31255
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Rob Pike 2016-10-16 11:28:45 -07:00
parent ca28620db9
commit 42f5ee4cbf
1 changed files with 5 additions and 4 deletions
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9
src/testing/testing.go
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@ -476,10 +476,11 @@ func (c *common) log(s string) {
// 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. 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.
// Logf formats its arguments according to the format, analogous to Printf, and
// records the text in the error log. A final newline is added if not provided. 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.