30   std::string s("hello");  in TEST()  local
32   ASSERT_FALSE(android::base::ReadFileToString("/proc/does-not-exist", &s));  in TEST()
34   EXPECT_EQ("", s);  // s was cleared.  in TEST()
42   std::string s;  in TEST()  local
43   ASSERT_TRUE(android::base::ReadFileToString(tf.path, &s))  in TEST()
45   EXPECT_EQ("abc", s);  in TEST()
62   std::string s;  in TEST()  local
63   ASSERT_TRUE(android::base::ReadFileToString(tf.path, &s))  in TEST()
65   EXPECT_EQ("abc", s);  in TEST()
76   std::string s;  in TEST()  local
77   ASSERT_TRUE(android::base::ReadFdToString(tf.fd, &s)) << strerror(errno);  in TEST()
78   EXPECT_EQ("abc", s);  in TEST()
88   std::string s;  in TEST()  local
89   s.resize(3);  in TEST()
90   ASSERT_TRUE(android::base::ReadFully(tf.fd, &s[0], s.size()))  in TEST()
92   EXPECT_EQ("abc", s);  in TEST()
96   s.resize(1024);  in TEST()
97   ASSERT_FALSE(android::base::ReadFully(tf.fd, &s[0], s.size()));  in TEST()