138   constexpr char WRITE_DATA[] = "Hello,writeonly!";  in TEST()  local
139   ASSERT_EQ(sizeof(WRITE_DATA),  in TEST()
140             __llvm_libc::fwrite(WRITE_DATA, 1, sizeof(WRITE_DATA), f));  in TEST()
143   ASSERT_STREQ(WRITE_DATA, ss->buf);  in TEST()
146   char read_data[sizeof(WRITE_DATA)];  in TEST()
148   ASSERT_EQ(size_t(0), __llvm_libc::fread(read_data, 1, sizeof(WRITE_DATA), f));  in TEST()
162   constexpr char WRITE_DATA[] = "append";  in TEST()  local
185   ASSERT_EQ(__llvm_libc::fwrite(WRITE_DATA, 1, sizeof(WRITE_DATA), f),  in TEST()
186             sizeof(WRITE_DATA));  in TEST()
188   EXPECT_EQ(ss->endpos, sizeof(WRITE_DATA) + sizeof(INITIAL_CONTENT));  in TEST()
215   constexpr char WRITE_DATA[] = "hello, file";  in TEST()  local
216   ASSERT_EQ(sizeof(WRITE_DATA),  in TEST()
217             __llvm_libc::fwrite(WRITE_DATA, 1, sizeof(WRITE_DATA), f));  in TEST()
219   EXPECT_STREQ(ss->buf, WRITE_DATA);  in TEST()
226   constexpr char WRITE_DATA[] = "hello, file";  in TEST()  local
228   ss->buf = reinterpret_cast<char *>(malloc(sizeof(WRITE_DATA)));  in TEST()
229   ss->bufsize = sizeof(WRITE_DATA);  in TEST()
236   ASSERT_EQ(sizeof(WRITE_DATA),  in TEST()
237             __llvm_libc::fwrite(WRITE_DATA, 1, sizeof(WRITE_DATA), f));  in TEST()
241   char read_data[sizeof(WRITE_DATA)];  in TEST()
244   EXPECT_STREQ(read_data, WRITE_DATA);  in TEST()