optimize project structure

database/util_test.go

@@ -0,0 +1,18 @@
+package database
+
+import (
+	"github.com/hdt3213/godis/datastruct/dict"
+	"github.com/hdt3213/godis/datastruct/lock"
+)
+
+func makeTestDB() *DB {
+	return &DB{
+		data:       dict.MakeConcurrent(dataDictSize),
+		versionMap: dict.MakeConcurrent(dataDictSize),
+		ttlMap:     dict.MakeConcurrent(ttlDictSize),
+		locker:     lock.Make(lockerSize),
+		addAof: func(line CmdLine) {
+
+		},
+	}
+}