implement sqlite write queue

core/sqlite_db_test.go

@@ -2,11 +2,12 @@ package core
 
 import (
 	"github.com/stretchr/testify/assert"
+	"os"
 	"testing"
 )
 
 func TestNewSqliteDB(t *testing.T) {
-	dbFile := "../test.db"
+	dbFile := os.Getenv("TEST_DB")
 	//	sql_driver.MakeTables(dbFile)
 	db := NewSqliteDB(dbFile)
 	defer db.CloseDb()