diff --git a/config_example.yaml b/config_example.yml
similarity index 100%
rename from config_example.yaml
rename to config_example.yml
diff --git a/main.go b/main.go
index 884d1a8..1989d01 100644
--- a/main.go
+++ b/main.go
@@ -30,7 +30,7 @@ var (
 func main() {
 	flag.StringVar(&configFile, "config", "config.yml", "path of configuration file (default:config.yaml)")
 	flag.Parse()
-	config = models.ConfigReadFile(configFile)
+	config = models.ReadConfigFile(configFile)
 	nodes = models.NewNodes(config)
 
 	if config.Influxdb.Enable {
diff --git a/models/config.go b/models/config.go
index 0f35088..17c0e89 100644
--- a/models/config.go
+++ b/models/config.go
@@ -40,8 +40,8 @@ type Config struct {
 	}
 }
 
-//ConfigReadFile reads a Config models by path to a yml file
-func ConfigReadFile(path string) *Config {
+// reads a config models by path to a yml file
+func ReadConfigFile(path string) *Config {
 	config := &Config{}
 	file, _ := ioutil.ReadFile(path)
 	err := yaml.Unmarshal(file, &config)
diff --git a/models/config_test.go b/models/config_test.go
new file mode 100644
index 0000000..c78a4ab
--- /dev/null
+++ b/models/config_test.go
@@ -0,0 +1,14 @@
+package models
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestReadConfig(t *testing.T) {
+	assert := assert.New(t)
+
+	config := ReadConfigFile("../config_example.yml")
+	assert.NotNil(config)
+}