message: Change temp directory to work with Windows
diff: @@ -85,8 +85,11 @@ class ModularFileSystemTest : public ::testing::TestWithParam<std::string> {
  const std::string test_name = tensorflow::str_util::StringReplace(
  ::testing::UnitTest::GetInstance()->current_test_info()->name(), "/",
  "_", /*replace_all=*/true);
  + // Since we need the tests for cloud filesystem to run on all OSs (Windows, MacOS, Linux, ...)
  + // The path to temp directory must not be dependent on the OS which runs the tests
  + const std::string tmp_dir_ = cloud_path_.empty() ? ::testing::TempDir() : "/tmp/";
  root_dir_ = tensorflow::io::JoinPath(
  - ::testing::TempDir(),
  + tmp_dir_,
  tensorflow::strings::StrCat("tf_fs_", rng_val_, "_", test_name));
  if(!GetParam().empty()) {
  if(!cloud_path_.empty()) {
  