log: adds a Logger Output method Example
Change-Id: Ia3e351169a4ebe6db5e5f37b668f23dc8c992c78
Reviewed-on: https://go-review.googlesource.com/48877
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/src/log/example_test.go b/src/log/example_test.go
index 74385a3..769d076 100644
--- a/src/log/example_test.go
+++ b/src/log/example_test.go
@@ -11,11 +11,31 @@
)
func ExampleLogger() {
- var buf bytes.Buffer
- logger := log.New(&buf, "logger: ", log.Lshortfile)
+ var (
+ buf bytes.Buffer
+ logger = log.New(&buf, "logger: ", log.Lshortfile)
+ )
+
logger.Print("Hello, log file!")
fmt.Print(&buf)
// Output:
- // logger: example_test.go:16: Hello, log file!
+ // logger: example_test.go:19: Hello, log file!
+}
+
+func ExampleLogger_Output() {
+ var (
+ buf bytes.Buffer
+ logger = log.New(&buf, "INFO: ", log.Lshortfile)
+
+ infof = func(info string) {
+ logger.Output(2, info)
+ }
+ )
+
+ infof("Hello world")
+
+ fmt.Print(&buf)
+ // Output:
+ // INFO: example_test.go:36: Hello world
}
