diff --git a/backend/database/mongo_test.go b/backend/database/mongo_test.go
index b875b91a..ed6044ee 100644
--- a/backend/database/mongo_test.go
+++ b/backend/database/mongo_test.go
@@ -2,14 +2,29 @@ package database
 
 import (
 	"crawlab/config"
+	"github.com/apex/log"
+	"github.com/globalsign/mgo"
 	. "github.com/smartystreets/goconvey/convey"
 	"github.com/spf13/viper"
+	"reflect"
 	"testing"
 )
 
+func init() {
+	if err := config.InitConfig("../conf/config.yml"); err != nil {
+		log.Fatal("Init config failed")
+	}
+	log.Infof("初始化配置成功")
+	err := InitMongo()
+	if err != nil {
+		log.Fatal("Init mongodb failed")
+	}
+
+}
+
 func TestGetDb(t *testing.T) {
 	Convey("Test GetDb", t, func() {
-		if err := config.InitConfig(""); err != nil {
+		if err := config.InitConfig("../conf/config.yml"); err != nil {
 			t.Fatal("Init config failed")
 		}
 		t.Log("初始化配置成功")
@@ -26,3 +41,30 @@ func TestGetDb(t *testing.T) {
 		})
 	})
 }
+
+func TestGetCol(t *testing.T) {
+	var c = "nodes"
+	var colActual *mgo.Collection
+	Convey("Test GetCol", t, func() {
+		s, col := GetCol(c)
+		Convey("s should resemble Session.Copy", func() {
+			So(s, ShouldResemble, Session.Copy())
+			So(reflect.TypeOf(col), ShouldResemble, reflect.TypeOf(colActual))
+		})
+	})
+}
+
+func TestGetGridFs(t *testing.T) {
+	var prefix = "files"
+	var gfActual *mgo.GridFS
+
+	Convey("Test GetGridFs", t, func() {
+		s, gf := GetGridFs(prefix)
+		Convey("s should be session.copy", func() {
+			So(s, ShouldResemble, Session.Copy())
+		})
+		Convey("gf should be *mgo.GridFS", func() {
+			So(reflect.TypeOf(gf), ShouldResemble, reflect.TypeOf(gfActual))
+		})
+	})
+}