refactor: update import path.

storage/boltdb/boltdb_test.go

@@ -1,9 +1,10 @@
 package boltdb
 
 import (
+	"testing"
+
 	c "github.com/appleboy/gorush/config"
 	"github.com/stretchr/testify/assert"
-	"testing"
 )
 
 func TestBoltDBEngine(t *testing.T) {

storage/buntdb/buntdb.go

@@ -2,9 +2,10 @@ package buntdb
 
 import (
 	"fmt"
+	"strconv"
+
 	"github.com/appleboy/gorush/config"
 	"github.com/tidwall/buntdb"
-	"strconv"
 )
 
 // Stat variable for redis

storage/buntdb/buntdb_test.go

@@ -1,10 +1,11 @@
 package buntdb
 
 import (
-	c "github.com/appleboy/gorush/config"
-	"github.com/stretchr/testify/assert"
 	"os"
 	"testing"
+
+	c "github.com/appleboy/gorush/config"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestBuntDBEngine(t *testing.T) {

storage/leveldb/leveldb.go

@@ -2,9 +2,10 @@ package leveldb
 
 import (
 	"fmt"
+	"strconv"
+
 	"github.com/appleboy/gorush/config"
 	"github.com/syndtr/goleveldb/leveldb"
-	"strconv"
 )
 
 // Stat variable for redis

storage/leveldb/leveldb_test.go

@@ -1,10 +1,11 @@
 package leveldb
 
 import (
-	c "github.com/appleboy/gorush/config"
-	"github.com/stretchr/testify/assert"
 	"os"
 	"testing"
+
+	c "github.com/appleboy/gorush/config"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestLevelDBEngine(t *testing.T) {

storage/memory/memory_test.go

@@ -1,8 +1,9 @@
 package memory
 
 import (
-	"github.com/stretchr/testify/assert"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestMemoryEngine(t *testing.T) {

storage/redis/redis.go

@@ -1,10 +1,11 @@
 package redis
 
 import (
-	"github.com/appleboy/gorush/config"
-	"gopkg.in/redis.v5"
 	"log"
 	"strconv"
+
+	"github.com/appleboy/gorush/config"
+	"gopkg.in/redis.v5"
 )
 
 // Stat variable for redis

storage/redis/redis_test.go

@@ -1,9 +1,10 @@
 package redis
 
 import (
+	"testing"
+
 	c "github.com/appleboy/gorush/config"
 	"github.com/stretchr/testify/assert"
-	"testing"
 )
 
 func TestRedisServerError(t *testing.T) {