47     std::unique_ptr<FSRandomAccessFile> f;  in IsDirectIOSupported()  local
48     auto s = fs_->NewRandomAccessFile(Path(".direct"), opt, &f, nullptr);  in IsDirectIOSupported()
53     std::unique_ptr<FSWritableFile> f;  in Write()  local
54     ASSERT_OK(fs_->NewWritableFile(Path(fname), FileOptions(), &f, nullptr));  in Write()
55     ASSERT_OK(f->Append(content, IOOptions(), nullptr));  in Write()
56     ASSERT_OK(f->Close(IOOptions(), nullptr));  in Write()
62     std::unique_ptr<FSRandomAccessFile> f;  in Read()  local
63     ASSERT_OK(fs_->NewRandomAccessFile(fpath, opts, &f, nullptr));  in Read()
64     (*reader).reset(new RandomAccessFileReader(std::move(f), fpath, env_));  in Read()
89     std::string f = "get_alignment";  in GetAlignment()  local
90     Write(f, "");  in GetAlignment()
92     Read(f, FileOptions(), &r);  in GetAlignment()
94     EXPECT_OK(fs_->DeleteFile(Path(f), IOOptions(), nullptr));  in GetAlignment()