737 lines
25 KiB
C++
737 lines
25 KiB
C++
#ifndef FILESYSTEM_TEST_HELPER_H
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#define FILESYSTEM_TEST_HELPER_H
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#include "filesystem_include.h"
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#include <sys/stat.h> // for stat, mkdir, mkfifo
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#ifndef _WIN32
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#include <unistd.h> // for ftruncate, link, symlink, getcwd, chdir
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#include <sys/statvfs.h>
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#else
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#include <io.h>
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#include <direct.h>
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#include <windows.h> // for CreateSymbolicLink, CreateHardLink
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#endif
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#include <cassert>
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#include <chrono>
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#include <cstdio> // for printf
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#include <string>
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#include <system_error>
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#include <vector>
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#include "make_string.h"
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#include "test_macros.h"
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#include "rapid-cxx-test.h"
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#include "format_string.h"
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// For creating socket files
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#if !defined(__FreeBSD__) && !defined(__APPLE__) && !defined(_WIN32)
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# include <sys/socket.h>
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# include <sys/un.h>
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#endif
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namespace utils {
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#ifdef _WIN32
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inline int mkdir(const char* path, int mode) { (void)mode; return ::_mkdir(path); }
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inline int ftruncate(int fd, off_t length) { return ::_chsize(fd, length); }
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inline int symlink(const char* oldname, const char* newname, bool is_dir) {
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DWORD flags = is_dir ? SYMBOLIC_LINK_FLAG_DIRECTORY : 0;
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if (CreateSymbolicLinkA(newname, oldname,
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flags | SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE))
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return 0;
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if (GetLastError() != ERROR_INVALID_PARAMETER)
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return 1;
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return !CreateSymbolicLinkA(newname, oldname, flags);
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}
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inline int link(const char *oldname, const char* newname) {
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return !CreateHardLinkA(newname, oldname, NULL);
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}
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inline int setenv(const char *var, const char *val, int overwrite) {
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(void)overwrite;
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return ::_putenv((std::string(var) + "=" + std::string(val)).c_str());
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}
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inline int unsetenv(const char *var) {
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return ::_putenv((std::string(var) + "=").c_str());
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}
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inline bool space(std::string path, std::uintmax_t &capacity,
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std::uintmax_t &free, std::uintmax_t &avail) {
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ULARGE_INTEGER FreeBytesAvailableToCaller, TotalNumberOfBytes,
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TotalNumberOfFreeBytes;
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if (!GetDiskFreeSpaceExA(path.c_str(), &FreeBytesAvailableToCaller,
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&TotalNumberOfBytes, &TotalNumberOfFreeBytes))
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return false;
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capacity = TotalNumberOfBytes.QuadPart;
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free = TotalNumberOfFreeBytes.QuadPart;
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avail = FreeBytesAvailableToCaller.QuadPart;
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assert(capacity > 0);
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assert(free > 0);
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assert(avail > 0);
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return true;
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}
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#else
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using ::mkdir;
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using ::ftruncate;
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inline int symlink(const char* oldname, const char* newname, bool is_dir) { (void)is_dir; return ::symlink(oldname, newname); }
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using ::link;
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using ::setenv;
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using ::unsetenv;
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inline bool space(std::string path, std::uintmax_t &capacity,
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std::uintmax_t &free, std::uintmax_t &avail) {
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struct statvfs expect;
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if (::statvfs(path.c_str(), &expect) == -1)
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return false;
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assert(expect.f_bavail > 0);
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assert(expect.f_bfree > 0);
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assert(expect.f_bsize > 0);
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assert(expect.f_blocks > 0);
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assert(expect.f_frsize > 0);
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auto do_mult = [&](std::uintmax_t val) {
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std::uintmax_t fsize = expect.f_frsize;
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std::uintmax_t new_val = val * fsize;
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assert(new_val / fsize == val); // Test for overflow
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return new_val;
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};
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capacity = do_mult(expect.f_blocks);
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free = do_mult(expect.f_bfree);
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avail = do_mult(expect.f_bavail);
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return true;
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}
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#endif
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inline std::string getcwd() {
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// Assume that path lengths are not greater than this.
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// This should be fine for testing purposes.
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char buf[4096];
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char* ret = ::getcwd(buf, sizeof(buf));
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assert(ret && "getcwd failed");
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return std::string(ret);
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}
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inline bool exists(std::string const& path) {
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struct ::stat tmp;
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return ::stat(path.c_str(), &tmp) == 0;
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}
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} // end namespace utils
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struct scoped_test_env
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{
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scoped_test_env() : test_root(available_cwd_path()) {
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#ifdef _WIN32
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// Windows mkdir can create multiple recursive directories
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// if needed.
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std::string cmd = "mkdir " + test_root.string();
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#else
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std::string cmd = "mkdir -p " + test_root.string();
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#endif
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int ret = std::system(cmd.c_str());
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assert(ret == 0);
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// Ensure that the root_path is fully resolved, i.e. it contains no
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// symlinks. The filesystem tests depend on that. We do this after
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// creating the root_path, because `fs::canonical` requires the
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// path to exist.
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test_root = fs::canonical(test_root);
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}
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~scoped_test_env() {
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#ifdef _WIN32
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std::string cmd = "rmdir /s /q " + test_root.string();
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int ret = std::system(cmd.c_str());
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assert(ret == 0);
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#else
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#if defined(__MVS__)
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// The behaviour of chmod -R on z/OS prevents recursive
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// permission change for directories that do not have read permission.
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std::string cmd = "find " + test_root.string() + " -exec chmod 777 {} \\;";
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#else
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std::string cmd = "chmod -R 777 " + test_root.string();
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#endif // defined(__MVS__)
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int ret = std::system(cmd.c_str());
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#if !defined(_AIX)
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// On AIX the chmod command will return non-zero when trying to set
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// the permissions on a directory that contains a bad symlink. This triggers
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// the assert, despite being able to delete everything with the following
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// `rm -r` command.
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assert(ret == 0);
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#endif
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cmd = "rm -rf " + test_root.string();
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ret = std::system(cmd.c_str());
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assert(ret == 0);
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#endif
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}
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scoped_test_env(scoped_test_env const &) = delete;
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scoped_test_env & operator=(scoped_test_env const &) = delete;
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fs::path make_env_path(std::string p) { return sanitize_path(p); }
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std::string sanitize_path(std::string raw) {
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assert(raw.find("..") == std::string::npos);
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std::string root = test_root.string();
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if (root.compare(0, root.size(), raw, 0, root.size()) != 0) {
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assert(raw.front() != '\\');
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fs::path tmp(test_root);
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tmp /= raw;
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return tmp.string();
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}
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return raw;
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}
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// Purposefully using a size potentially larger than off_t here so we can
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// test the behavior of libc++fs when it is built with _FILE_OFFSET_BITS=64
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// but the caller is not (std::filesystem also uses uintmax_t rather than
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// off_t). On a 32-bit system this allows us to create a file larger than
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// 2GB.
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std::string create_file(fs::path filename_path, uintmax_t size = 0) {
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std::string filename = filename_path.string();
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#if defined(__LP64__) || defined(_WIN32) || defined(__MVS__)
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auto large_file_fopen = fopen;
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auto large_file_ftruncate = utils::ftruncate;
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using large_file_offset_t = off_t;
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#else
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auto large_file_fopen = fopen64;
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auto large_file_ftruncate = ftruncate64;
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using large_file_offset_t = off64_t;
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#endif
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filename = sanitize_path(std::move(filename));
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if (size >
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static_cast<typename std::make_unsigned<large_file_offset_t>::type>(
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std::numeric_limits<large_file_offset_t>::max())) {
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fprintf(stderr, "create_file(%s, %ju) too large\n",
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filename.c_str(), size);
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abort();
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}
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#if defined(_WIN32) || defined(__MVS__)
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# define FOPEN_CLOEXEC_FLAG ""
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#else
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# define FOPEN_CLOEXEC_FLAG "e"
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#endif
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FILE* file = large_file_fopen(filename.c_str(), "w" FOPEN_CLOEXEC_FLAG);
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if (file == nullptr) {
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fprintf(stderr, "fopen %s failed: %s\n", filename.c_str(),
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strerror(errno));
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abort();
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}
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if (large_file_ftruncate(
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fileno(file), static_cast<large_file_offset_t>(size)) == -1) {
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fprintf(stderr, "ftruncate %s %ju failed: %s\n", filename.c_str(),
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size, strerror(errno));
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fclose(file);
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abort();
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}
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fclose(file);
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return filename;
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}
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std::string create_dir(fs::path filename_path) {
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std::string filename = filename_path.string();
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filename = sanitize_path(std::move(filename));
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int ret = utils::mkdir(filename.c_str(), 0777); // rwxrwxrwx mode
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assert(ret == 0);
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return filename;
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}
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std::string create_file_dir_symlink(fs::path source_path,
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fs::path to_path,
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bool sanitize_source = true,
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bool is_dir = false) {
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std::string source = source_path.string();
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std::string to = to_path.string();
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if (sanitize_source)
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source = sanitize_path(std::move(source));
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to = sanitize_path(std::move(to));
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int ret = utils::symlink(source.c_str(), to.c_str(), is_dir);
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assert(ret == 0);
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return to;
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}
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std::string create_symlink(fs::path source_path,
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fs::path to_path,
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bool sanitize_source = true) {
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return create_file_dir_symlink(source_path, to_path, sanitize_source,
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false);
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}
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std::string create_directory_symlink(fs::path source_path,
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fs::path to_path,
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bool sanitize_source = true) {
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return create_file_dir_symlink(source_path, to_path, sanitize_source,
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true);
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}
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std::string create_hardlink(fs::path source_path, fs::path to_path) {
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std::string source = source_path.string();
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std::string to = to_path.string();
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source = sanitize_path(std::move(source));
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to = sanitize_path(std::move(to));
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int ret = utils::link(source.c_str(), to.c_str());
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assert(ret == 0);
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return to;
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}
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#ifndef _WIN32
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std::string create_fifo(std::string file) {
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file = sanitize_path(std::move(file));
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int ret = ::mkfifo(file.c_str(), 0666); // rw-rw-rw- mode
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assert(ret == 0);
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return file;
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}
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#endif
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// Some platforms doesn't support socket files so we shouldn't even
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// allow tests to call this unguarded.
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#if !defined(__FreeBSD__) && !defined(__APPLE__) && !defined(_WIN32)
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std::string create_socket(std::string file) {
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file = sanitize_path(std::move(file));
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::sockaddr_un address;
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address.sun_family = AF_UNIX;
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assert(file.size() <= sizeof(address.sun_path));
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::strncpy(address.sun_path, file.c_str(), sizeof(address.sun_path));
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int fd = ::socket(AF_UNIX, SOCK_STREAM, 0);
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::bind(fd, reinterpret_cast<::sockaddr*>(&address), sizeof(address));
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return file;
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}
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#endif
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fs::path test_root;
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private:
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// This could potentially introduce a filesystem race if multiple
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// scoped_test_envs were created concurrently in the same test (hence
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// sharing the same cwd). However, it is fairly unlikely to happen as
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// we generally don't use scoped_test_env from multiple threads, so
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// this is deemed acceptable.
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// The cwd.filename() itself isn't unique across all tests in the suite,
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// so start the numbering from a hash of the full cwd, to avoid
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// different tests interfering with each other.
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static inline fs::path available_cwd_path() {
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fs::path const cwd = utils::getcwd();
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fs::path const tmp = fs::temp_directory_path();
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std::string base = cwd.filename().string();
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size_t i = std::hash<std::string>()(cwd.string());
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fs::path p = tmp / (base + "-static_env." + std::to_string(i));
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while (utils::exists(p.string())) {
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p = tmp / (base + "-static_env." + std::to_string(++i));
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}
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return p;
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}
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};
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/// This class generates the following tree:
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///
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/// static_test_env
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/// ├── bad_symlink -> dne
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/// ├── dir1
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/// │ ├── dir2
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/// │ │ ├── afile3
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/// │ │ ├── dir3
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/// │ │ │ └── file5
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/// │ │ ├── file4
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/// │ │ └── symlink_to_dir3 -> dir3
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/// │ ├── file1
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/// │ └── file2
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/// ├── empty_file
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/// ├── non_empty_file
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/// ├── symlink_to_dir -> dir1
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/// └── symlink_to_empty_file -> empty_file
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///
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class static_test_env {
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scoped_test_env env_;
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public:
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static_test_env() {
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env_.create_symlink("dne", "bad_symlink", false);
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env_.create_dir("dir1");
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env_.create_dir("dir1/dir2");
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env_.create_file("dir1/dir2/afile3");
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env_.create_dir("dir1/dir2/dir3");
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env_.create_file("dir1/dir2/dir3/file5");
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env_.create_file("dir1/dir2/file4");
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env_.create_directory_symlink("dir3", "dir1/dir2/symlink_to_dir3", false);
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env_.create_file("dir1/file1");
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env_.create_file("dir1/file2", 42);
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env_.create_file("empty_file");
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env_.create_file("non_empty_file", 42);
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env_.create_directory_symlink("dir1", "symlink_to_dir", false);
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env_.create_symlink("empty_file", "symlink_to_empty_file", false);
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}
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const fs::path Root = env_.test_root;
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fs::path makePath(fs::path const& p) const {
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// env_path is expected not to contain symlinks.
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fs::path const& env_path = Root;
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return env_path / p;
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}
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const std::vector<fs::path> TestFileList = {
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makePath("empty_file"),
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makePath("non_empty_file"),
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makePath("dir1/file1"),
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makePath("dir1/file2")
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};
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const std::vector<fs::path> TestDirList = {
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makePath("dir1"),
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makePath("dir1/dir2"),
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makePath("dir1/dir2/dir3")
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};
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const fs::path File = TestFileList[0];
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const fs::path Dir = TestDirList[0];
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const fs::path Dir2 = TestDirList[1];
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const fs::path Dir3 = TestDirList[2];
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const fs::path SymlinkToFile = makePath("symlink_to_empty_file");
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const fs::path SymlinkToDir = makePath("symlink_to_dir");
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const fs::path BadSymlink = makePath("bad_symlink");
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const fs::path DNE = makePath("DNE");
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const fs::path EmptyFile = TestFileList[0];
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const fs::path NonEmptyFile = TestFileList[1];
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const fs::path CharFile = "/dev/null"; // Hopefully this exists
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const std::vector<fs::path> DirIterationList = {
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makePath("dir1/dir2"),
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makePath("dir1/file1"),
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makePath("dir1/file2")
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};
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const std::vector<fs::path> DirIterationListDepth1 = {
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makePath("dir1/dir2/afile3"),
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makePath("dir1/dir2/dir3"),
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makePath("dir1/dir2/symlink_to_dir3"),
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makePath("dir1/dir2/file4"),
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};
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const std::vector<fs::path> RecDirIterationList = {
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makePath("dir1/dir2"),
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makePath("dir1/file1"),
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makePath("dir1/file2"),
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makePath("dir1/dir2/afile3"),
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makePath("dir1/dir2/dir3"),
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makePath("dir1/dir2/symlink_to_dir3"),
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makePath("dir1/dir2/file4"),
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makePath("dir1/dir2/dir3/file5")
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};
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const std::vector<fs::path> RecDirFollowSymlinksIterationList = {
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makePath("dir1/dir2"),
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makePath("dir1/file1"),
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makePath("dir1/file2"),
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makePath("dir1/dir2/afile3"),
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makePath("dir1/dir2/dir3"),
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makePath("dir1/dir2/file4"),
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makePath("dir1/dir2/dir3/file5"),
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makePath("dir1/dir2/symlink_to_dir3"),
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makePath("dir1/dir2/symlink_to_dir3/file5"),
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};
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};
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struct CWDGuard {
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std::string oldCwd_;
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CWDGuard() : oldCwd_(utils::getcwd()) { }
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~CWDGuard() {
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int ret = ::chdir(oldCwd_.c_str());
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assert(ret == 0 && "chdir failed");
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}
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CWDGuard(CWDGuard const&) = delete;
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CWDGuard& operator=(CWDGuard const&) = delete;
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};
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// Misc test types
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const MultiStringType PathList[] = {
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MKSTR(""),
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MKSTR(" "),
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MKSTR("//"),
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MKSTR("."),
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MKSTR(".."),
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MKSTR("foo"),
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MKSTR("/"),
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MKSTR("/foo"),
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MKSTR("foo/"),
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MKSTR("/foo/"),
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MKSTR("foo/bar"),
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MKSTR("/foo/bar"),
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MKSTR("//net"),
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MKSTR("//net/foo"),
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MKSTR("///foo///"),
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MKSTR("///foo///bar"),
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MKSTR("/."),
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MKSTR("./"),
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MKSTR("/.."),
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MKSTR("../"),
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MKSTR("foo/."),
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MKSTR("foo/.."),
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MKSTR("foo/./"),
|
|
MKSTR("foo/./bar"),
|
|
MKSTR("foo/../"),
|
|
MKSTR("foo/../bar"),
|
|
MKSTR("c:"),
|
|
MKSTR("c:/"),
|
|
MKSTR("c:foo"),
|
|
MKSTR("c:/foo"),
|
|
MKSTR("c:foo/"),
|
|
MKSTR("c:/foo/"),
|
|
MKSTR("c:/foo/bar"),
|
|
MKSTR("prn:"),
|
|
MKSTR("c:\\"),
|
|
MKSTR("c:\\foo"),
|
|
MKSTR("c:foo\\"),
|
|
MKSTR("c:\\foo\\"),
|
|
MKSTR("c:\\foo/"),
|
|
MKSTR("c:/foo\\bar"),
|
|
MKSTR("//"),
|
|
MKSTR("/finally/we/need/one/really/really/really/really/really/really/really/long/string")
|
|
};
|
|
const unsigned PathListSize = sizeof(PathList) / sizeof(MultiStringType);
|
|
|
|
template <class Iter>
|
|
Iter IterEnd(Iter B) {
|
|
using VT = typename std::iterator_traits<Iter>::value_type;
|
|
for (; *B != VT{}; ++B)
|
|
;
|
|
return B;
|
|
}
|
|
|
|
template <class CharT>
|
|
const CharT* StrEnd(CharT const* P) {
|
|
return IterEnd(P);
|
|
}
|
|
|
|
template <class CharT>
|
|
std::size_t StrLen(CharT const* P) {
|
|
return StrEnd(P) - P;
|
|
}
|
|
|
|
// Testing the allocation behavior of the code_cvt functions requires
|
|
// *knowing* that the allocation was not done by "path::__str_".
|
|
// This hack forces path to allocate enough memory.
|
|
inline void PathReserve(fs::path& p, std::size_t N) {
|
|
auto const& native_ref = p.native();
|
|
const_cast<fs::path::string_type&>(native_ref).reserve(N);
|
|
}
|
|
|
|
template <class Iter1, class Iter2>
|
|
bool checkCollectionsEqual(
|
|
Iter1 start1, Iter1 const end1
|
|
, Iter2 start2, Iter2 const end2
|
|
)
|
|
{
|
|
while (start1 != end1 && start2 != end2) {
|
|
if (*start1 != *start2) {
|
|
return false;
|
|
}
|
|
++start1; ++start2;
|
|
}
|
|
return (start1 == end1 && start2 == end2);
|
|
}
|
|
|
|
|
|
template <class Iter1, class Iter2>
|
|
bool checkCollectionsEqualBackwards(
|
|
Iter1 const start1, Iter1 end1
|
|
, Iter2 const start2, Iter2 end2
|
|
)
|
|
{
|
|
while (start1 != end1 && start2 != end2) {
|
|
--end1; --end2;
|
|
if (*end1 != *end2) {
|
|
return false;
|
|
}
|
|
}
|
|
return (start1 == end1 && start2 == end2);
|
|
}
|
|
|
|
// We often need to test that the error_code was cleared if no error occurs
|
|
// this function returns an error_code which is set to an error that will
|
|
// never be returned by the filesystem functions.
|
|
inline std::error_code GetTestEC(unsigned Idx = 0) {
|
|
using std::errc;
|
|
auto GetErrc = [&]() {
|
|
switch (Idx) {
|
|
case 0:
|
|
return errc::address_family_not_supported;
|
|
case 1:
|
|
return errc::address_not_available;
|
|
case 2:
|
|
return errc::address_in_use;
|
|
case 3:
|
|
return errc::argument_list_too_long;
|
|
default:
|
|
assert(false && "Idx out of range");
|
|
std::abort();
|
|
}
|
|
};
|
|
return std::make_error_code(GetErrc());
|
|
}
|
|
|
|
inline bool ErrorIsImp(const std::error_code& ec,
|
|
std::vector<std::errc> const& errors) {
|
|
std::error_condition cond = ec.default_error_condition();
|
|
for (auto errc : errors) {
|
|
if (cond.value() == static_cast<int>(errc))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
template <class... ErrcT>
|
|
inline bool ErrorIs(const std::error_code& ec, std::errc First, ErrcT... Rest) {
|
|
std::vector<std::errc> errors = {First, Rest...};
|
|
return ErrorIsImp(ec, errors);
|
|
}
|
|
|
|
// Provide our own Sleep routine since std::this_thread::sleep_for is not
|
|
// available in single-threaded mode.
|
|
template <class Dur> void SleepFor(Dur dur) {
|
|
using namespace std::chrono;
|
|
#if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK)
|
|
using Clock = system_clock;
|
|
#else
|
|
using Clock = steady_clock;
|
|
#endif
|
|
const auto wake_time = Clock::now() + dur;
|
|
while (Clock::now() < wake_time)
|
|
;
|
|
}
|
|
|
|
inline bool PathEq(fs::path const& LHS, fs::path const& RHS) {
|
|
return LHS.native() == RHS.native();
|
|
}
|
|
|
|
inline bool PathEqIgnoreSep(fs::path LHS, fs::path RHS) {
|
|
LHS.make_preferred();
|
|
RHS.make_preferred();
|
|
return LHS.native() == RHS.native();
|
|
}
|
|
|
|
inline fs::perms NormalizeExpectedPerms(fs::perms P) {
|
|
#ifdef _WIN32
|
|
// On Windows, fs::perms only maps down to one bit stored in the filesystem,
|
|
// a boolean readonly flag.
|
|
// Normalize permissions to the format it gets returned; all fs entries are
|
|
// read+exec for all users; writable ones also have the write bit set for
|
|
// all users.
|
|
P |= fs::perms::owner_read | fs::perms::group_read | fs::perms::others_read;
|
|
P |= fs::perms::owner_exec | fs::perms::group_exec | fs::perms::others_exec;
|
|
fs::perms Write =
|
|
fs::perms::owner_write | fs::perms::group_write | fs::perms::others_write;
|
|
if ((P & Write) != fs::perms::none)
|
|
P |= Write;
|
|
#endif
|
|
return P;
|
|
}
|
|
|
|
struct ExceptionChecker {
|
|
std::errc expected_err;
|
|
fs::path expected_path1;
|
|
fs::path expected_path2;
|
|
unsigned num_paths;
|
|
const char* func_name;
|
|
std::string opt_message;
|
|
|
|
explicit ExceptionChecker(std::errc first_err, const char* fun_name,
|
|
std::string opt_msg = {})
|
|
: expected_err{first_err}, num_paths(0), func_name(fun_name),
|
|
opt_message(opt_msg) {}
|
|
explicit ExceptionChecker(fs::path p, std::errc first_err,
|
|
const char* fun_name, std::string opt_msg = {})
|
|
: expected_err(first_err), expected_path1(p), num_paths(1),
|
|
func_name(fun_name), opt_message(opt_msg) {}
|
|
|
|
explicit ExceptionChecker(fs::path p1, fs::path p2, std::errc first_err,
|
|
const char* fun_name, std::string opt_msg = {})
|
|
: expected_err(first_err), expected_path1(p1), expected_path2(p2),
|
|
num_paths(2), func_name(fun_name), opt_message(opt_msg) {}
|
|
|
|
void operator()(fs::filesystem_error const& Err) {
|
|
TEST_CHECK(ErrorIsImp(Err.code(), {expected_err}));
|
|
TEST_CHECK(Err.path1() == expected_path1);
|
|
TEST_CHECK(Err.path2() == expected_path2);
|
|
LIBCPP_ONLY(check_libcxx_string(Err));
|
|
}
|
|
|
|
void check_libcxx_string(fs::filesystem_error const& Err) {
|
|
std::string message = std::make_error_code(expected_err).message();
|
|
|
|
std::string additional_msg = "";
|
|
if (!opt_message.empty()) {
|
|
additional_msg = opt_message + ": ";
|
|
}
|
|
auto transform_path = [](const fs::path& p) {
|
|
return "\"" + p.string() + "\"";
|
|
};
|
|
std::string format = [&]() -> std::string {
|
|
switch (num_paths) {
|
|
case 0:
|
|
return format_string("filesystem error: in %s: %s%s", func_name,
|
|
additional_msg, message);
|
|
case 1:
|
|
return format_string("filesystem error: in %s: %s%s [%s]", func_name,
|
|
additional_msg, message,
|
|
transform_path(expected_path1).c_str());
|
|
case 2:
|
|
return format_string("filesystem error: in %s: %s%s [%s] [%s]",
|
|
func_name, additional_msg, message,
|
|
transform_path(expected_path1).c_str(),
|
|
transform_path(expected_path2).c_str());
|
|
default:
|
|
TEST_CHECK(false && "unexpected case");
|
|
return "";
|
|
}
|
|
}();
|
|
TEST_CHECK(format == Err.what());
|
|
if (format != Err.what()) {
|
|
fprintf(stderr,
|
|
"filesystem_error::what() does not match expected output:\n");
|
|
fprintf(stderr, " expected: \"%s\"\n", format.c_str());
|
|
fprintf(stderr, " actual: \"%s\"\n\n", Err.what());
|
|
}
|
|
}
|
|
|
|
ExceptionChecker(ExceptionChecker const&) = delete;
|
|
ExceptionChecker& operator=(ExceptionChecker const&) = delete;
|
|
|
|
};
|
|
|
|
inline fs::path GetWindowsInaccessibleDir() {
|
|
// Only makes sense on windows, but the code can be compiled for
|
|
// any platform.
|
|
const fs::path dir("C:\\System Volume Information");
|
|
std::error_code ec;
|
|
const fs::path root("C:\\");
|
|
for (const auto &ent : fs::directory_iterator(root, ec)) {
|
|
if (ent != dir)
|
|
continue;
|
|
// Basic sanity checks on the directory_entry
|
|
if (!ent.exists() || !ent.is_directory()) {
|
|
fprintf(stderr, "The expected inaccessible directory \"%s\" was found "
|
|
"but doesn't behave as expected, skipping tests "
|
|
"regarding it\n", dir.string().c_str());
|
|
return fs::path();
|
|
}
|
|
// Check that it indeed is inaccessible as expected
|
|
(void)fs::exists(ent, ec);
|
|
if (!ec) {
|
|
fprintf(stderr, "The expected inaccessible directory \"%s\" was found "
|
|
"but seems to be accessible, skipping tests "
|
|
"regarding it\n", dir.string().c_str());
|
|
return fs::path();
|
|
}
|
|
return ent;
|
|
}
|
|
fprintf(stderr, "No inaccessible directory \"%s\" found, skipping tests "
|
|
"regarding it\n", dir.string().c_str());
|
|
return fs::path();
|
|
}
|
|
|
|
#endif /* FILESYSTEM_TEST_HELPER_H */
|