+ tmpDir, err := ioutil.TempDir(".", "")
+ if err != nil {
+ t.Fatalf("failed to create temporary data folder: %v", err)
+ }
+ defer os.RemoveAll(tmpDir)
+ testDBA := dbm.NewDB("testdba", "leveldb", tmpDir)
+ testDBB := dbm.NewDB("testdbb", "leveldb", tmpDir)
+