From 0f03cbbde7223b13850c4a433865f001c0c0c3f6 Mon Sep 17 00:00:00 2001
From: minqiyang <minqiyang@baidu.com>
Date: Tue, 3 Jul 2018 14:11:40 +0800
Subject: [PATCH] Add sprintf test

---
 paddle/fluid/string/printf_test.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/paddle/fluid/string/printf_test.cc b/paddle/fluid/string/printf_test.cc
index 678029f935..544b12ef3a 100644
--- a/paddle/fluid/string/printf_test.cc
+++ b/paddle/fluid/string/printf_test.cc
@@ -27,4 +27,5 @@ TEST(StringPrintf, StringPrintf) {
   EXPECT_EQ(std::string("Wednesday, July 27, 14:44"),
             paddle::string::Sprintf("%s, %s %d, %.2d:%.2d", weekday, month, day,
                                     hour, min));
+  EXPECT_EQ(std::string(""), paddle::string::Sprintf());
 }