if op == "add" {
				t.Logf("PASS: File %v was added to %v", f, tempCNIBinDir)
				return nil
			} else if op == "del" {
				return fmt.Errorf("FAIL: File %v was not removed from %v", f, tempCNIBinDir)
			}
		} else {
			if op == "add" {
				return fmt.Errorf("FAIL: File %v was not added to %v", f, tempCNIBinDir)
			} else if op == "del" {