Function foreach

src/tests/environment.cpp:1189–1206

    const testing::TestInfo&)
{
  foreach (const string& directory, directories) {
#ifdef __linux__
    // Try to remove any mounts under 'directory'.
    if (::geteuid() == 0) {
      Try<Nothing> unmount = fs::unmountAll(directory, MNT_DETACH);
      if (unmount.isError()) {
        LOG(ERROR) << "Failed to umount for directory '" << directory
                   << "': " << unmount.error();
      }
    }
#endif

    Try<Nothing> rmdir = os::rmdir(directory);
    if (rmdir.isError()) {
      LOG(ERROR) << "Failed to remove '" << directory
                 << "': " << rmdir.error();
    }
  }

  directories.clear();
}