logger/example_test.go


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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
}