diff --git a/log/README.md b/log/README.md
index 91beea0..dfa6063 100644
--- a/log/README.md
+++ b/log/README.md
@@ -1,3 +1,54 @@
 # log
 
 golang log library base [logrus](https://github.com/sirupsen/logrus) and [logrus-prefixed-formatter](https://github.com/x-cray/logrus-prefixed-formatter)
+
+# Usage
+
+## 1. Use The glide Package Management
+
+### install [glide](https://github.com/Masterminds/glide#install)
+
+```bash
+$ go get github.com/Masterminds/glide
+
+$ cd $GOPATH/src/github.com/Masterminds/glide
+
+$ make setup
+```
+or
+
+```bash
+# Mac OS
+$ brew install glide
+
+# Mac or Linux
+$ curl https://glide.sh/get | sh
+```
+[Binary packages](https://github.com/Masterminds/glide/releases) are available for Mac, Linux and Windows.
+
+### install log
+
+```bash
+$ go get -u github.com/ehlxr/go-utils
+
+$ cd $GOPATH/src/github.com/ehlxr/go-utils/log
+
+$ glide install
+```
+
+## 2. Manually add Dependencies
+
+### add dependencies
+
+```bash
+$ go get github.com/sirupsen/logrus
+$ go get github.com/x-cray/logrus-prefixed-formatter
+```
+
+### install log
+
+```bash
+$ go get -u github.com/ehlxr/go-utils
+```
+
+
diff --git a/log/log_test.go b/log/log_test.go
new file mode 100644
index 0000000..d544419
--- /dev/null
+++ b/log/log_test.go
@@ -0,0 +1,48 @@
+package log
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/sirupsen/logrus"
+)
+
+func TestSetting(t *testing.T) {
+	SetFn(true)
+	SetLogLevel(logrus.DebugLevel)
+	SetLogFormatter(&logrus.JSONFormatter{TimestampFormat: "2006-01-02 15:04:05"})
+	// SetLogFormatter(&prefixed.TextFormatter{
+	// 	ForceFormatting:  true,
+	// 	QuoteEmptyFields: true,
+	// 	TimestampFormat:  "2006-01-02 15:04:05",
+	// 	FullTimestamp:    true,
+	// 	ForceColors:      true,
+	// })
+}
+
+func TestInfo(t *testing.T) {
+	Info("this is a Info log test.")
+
+	InfoWithFields(Fields{
+		"id":   10001,
+		"name": "hello",
+	}, "this is a InfoWithFields log test.")
+
+	Infof("this is a %s log test.", "Infof")
+
+	InfofWithFields(Fields{
+		"id":   10001,
+		"name": "hello",
+	}, "this is a %s log test.", "InfofWithFields")
+}
+
+func TestPanic(t *testing.T) {
+	defer func() {
+		if x := recover(); x != nil {
+			fmt.Println("recover:", x)
+		}
+	}()
+	Panic("this is a Panic log test.")
+
+	Panicf("this is a %s log test.", "Panicf")
+}
diff --git a/main.go b/main.go
deleted file mode 100644
index dad8d34..0000000
--- a/main.go
+++ /dev/null
@@ -1,46 +0,0 @@
-package main
-
-import (
-	"github.com/ehlxr/go-utils/log"
-	"github.com/sirupsen/logrus"
-)
-
-func init() {
-	log.SetLogLevel(logrus.DebugLevel)
-	// log.SetLogFormatter(&logrus.JSONFormatter{TimestampFormat: "2006-01-02 15:04:05"})
-	// log.SetFn(false)
-}
-
-func main() {
-
-	log.Debug("debug text...")
-	log.Info("info text...")
-	log.Error("error text...")
-	// log.Fatal("fatal text...")
-	// log.Panic("panic text...")
-
-	log.DebugWithFields(log.Fields{
-		"id":   "test",
-		"name": "jj",
-	}, "debug with fields text...")
-
-	log.InfoWithFields(log.Fields{
-		"id":   "test",
-		"name": "jj",
-	}, "info with fields text...")
-
-	log.ErrorWithFields(log.Fields{
-		"id":   "test",
-		"name": "jj",
-	}, "error with fields text...")
-
-	log.FatalWithFields(log.Fields{
-		"id":   "test",
-		"name": "jj",
-	}, "fatal with fields text...")
-
-	// log.Panic(log.Fields{
-	// 	"id":   "test",
-	// 	"name": "jj",
-	// }, "fatal with fields text...")
-}