op-geth/logger/example_test.go

22 lines
568 B
Go

package logger
import "os"
func ExampleLogger() {
logger := NewLogger("TAG")
logger.Infoln("so awesome") // prints [TAG] so awesome
logger.Infof("this %q is raw", "coin") // prints [TAG] this "coin" is raw
}
func ExampleLogSystem() {
filename := "test.log"
file, _ := os.OpenFile(filename, os.O_RDWR|os.O_CREATE, os.ModePerm)
fileLog := NewStdLogSystem(file, 0, WarnLevel)
AddLogSystem(fileLog)
stdoutLog := NewStdLogSystem(os.Stdout, 0, WarnLevel)
AddLogSystem(stdoutLog)
NewLogger("TAG").Warnln("reactor meltdown") // writes to both logs
}