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// Copyright 2011-2012 Renato Tegon Forti
// Copyright Antony Polukhin, 2015-2025
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt
// or copy at http://www.boost.org/LICENSE_1_0.txt)
// For more information, see http://www.boost.org
#include "../example/b2_workarounds.hpp"
#include <boost/dll.hpp>
#include <system_error>
#include <boost/system/error_code.hpp>
#include <boost/system/system_error.hpp>
#include <boost/core/lightweight_test.hpp>
// Unit Tests
namespace boost { namespace dll { namespace fs {
#ifdef BOOST_DLL_USE_STD_FS
using std::filesystem::remove;
using std::filesystem::copy;
#else
using boost::filesystem::remove;
using boost::filesystem::copy;
#endif
}}}
inline boost::dll::fs::path drop_version(const boost::dll::fs::path& lhs) {
boost::dll::fs::path ext = lhs.filename().extension();
if (ext.native().size() > 1 && std::isdigit(ext.string()[1])) {
ext = lhs;
ext.replace_extension().replace_extension().replace_extension();
return ext;
}
return lhs;
}
inline bool lib_path_equal(const boost::dll::fs::path& lhs, const boost::dll::fs::path& rhs) {
const bool res = (drop_version(lhs).filename() == drop_version(rhs).filename());
if (!res) {
std::cerr << "lhs != rhs: " << lhs << " != " << rhs << '\n';
}
return res;
}
struct fs_copy_guard {
const boost::dll::fs::path actual_path_;
const bool same_;
inline explicit fs_copy_guard(const boost::dll::fs::path& shared_library_path)
: actual_path_( drop_version(shared_library_path) )
, same_(actual_path_ == shared_library_path)
{
if (!same_) {
boost::dll::fs::error_code ignore;
boost::dll::fs::remove(actual_path_, ignore);
boost::dll::fs::copy(shared_library_path, actual_path_, ignore);
}
}
inline ~fs_copy_guard() {
if (!same_) {
boost::dll::fs::error_code ignore;
boost::dll::fs::remove(actual_path_, ignore);
}
}
};
// Disgusting workarounds for b2 on Windows platform
inline boost::dll::fs::path do_find_correct_libs_path(int argc, char* argv[], const char* lib_name) {
boost::dll::fs::path ret;
for (int i = 1; i < argc; ++i) {
ret = argv[i];
if (ret.string().find(lib_name) != std::string::npos && b2_workarounds::is_shared_library(ret)) {
return ret;
}
}
return lib_name;
}
int main(int argc, char* argv[])
{
using namespace boost::dll;
BOOST_TEST(argc >= 3);
boost::dll::fs::path shared_library_path = do_find_correct_libs_path(argc, argv, "test_library");
std::cout << "Library: " << shared_library_path;
{
shared_library sl(shared_library_path);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
shared_library sl2;
BOOST_TEST(!sl2.is_loaded());
BOOST_TEST(!sl2);
swap(sl, sl2);
BOOST_TEST(!sl.is_loaded());
BOOST_TEST(!sl);
BOOST_TEST(sl2.is_loaded());
BOOST_TEST(sl2);
sl.assign(sl2);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(sl2.is_loaded());
BOOST_TEST(sl2);
BOOST_TEST(sl2.location() == sl.location());
sl.assign(sl2);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(sl2.is_loaded());
BOOST_TEST(sl2);
BOOST_TEST(sl2.location() == sl.location());
sl2.assign(sl);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(sl2.is_loaded());
BOOST_TEST(sl2);
BOOST_TEST(sl2.location() == sl.location());
// Assigning an empty shared library
sl2.assign(shared_library());
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(!sl2.is_loaded());
BOOST_TEST(!sl2);
boost::dll::fs::error_code ec;
BOOST_TEST(sl2.location(ec) != sl.location());
BOOST_TEST(ec);
}
{
shared_library sl_empty(nullptr);
BOOST_TEST(!sl_empty.is_loaded());
BOOST_TEST(!sl_empty);
std::error_code ec;
sl_empty.location(ec);
BOOST_TEST(ec);
}
{
boost::dll::fs::error_code ec;
shared_library sl(shared_library_path, ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(!ec);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
BOOST_TEST(lib_path_equal(sl.location(ec), shared_library_path));
BOOST_TEST(!ec);
// Checking self assignment #1
sl.assign(sl);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(!ec);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
BOOST_TEST(lib_path_equal(sl.location(ec), shared_library_path));
// Checking self assignment #2
sl.assign(sl, ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(!ec);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
BOOST_TEST(lib_path_equal(sl.location(ec), shared_library_path));
}
{
shared_library sl;
BOOST_TEST(!sl.is_loaded());
sl.assign(sl);
BOOST_TEST(!sl);
shared_library sl2(sl);
BOOST_TEST(!sl);
BOOST_TEST(!sl2);
sl2.assign(sl);
BOOST_TEST(!sl);
BOOST_TEST(!sl2);
}
{
shared_library sl;
sl.load(shared_library_path);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
}
{
shared_library sl;
boost::dll::fs::error_code ec;
sl.load(shared_library_path, ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(!ec);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
}
{
shared_library sl(shared_library_path, load_mode::load_with_altered_search_path );
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
}
{
boost::dll::fs::error_code ec;
shared_library sl(shared_library_path, load_mode::load_with_altered_search_path, ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(!ec);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
BOOST_TEST(lib_path_equal(sl.location(ec), shared_library_path));
BOOST_TEST(!ec);
}
{
boost::dll::fs::error_code ec;
shared_library sl(shared_library_path, load_mode::search_system_folders, ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(!ec);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
BOOST_TEST(lib_path_equal(sl.location(ec), shared_library_path));
BOOST_TEST(!ec);
}
{
try {
#if BOOST_OS_WINDOWS
boost::dll::shared_library("winmm.dll");
BOOST_TEST(false);
#elif BOOST_OS_LINUX
boost::dll::shared_library("libz.so");
BOOST_TEST(false);
#endif
} catch (...) {}
}
{
try {
#if BOOST_OS_WINDOWS
boost::dll::shared_library("winmm", load_mode::search_system_folders | load_mode::append_decorations);
#elif BOOST_OS_LINUX
boost::dll::shared_library("z", boost::dll::load_mode::search_system_folders | load_mode::append_decorations);
#endif
} catch (...) {
BOOST_TEST(false);
}
}
{
shared_library sl;
sl.load(shared_library_path, load_mode::load_with_altered_search_path);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
}
{
shared_library sl;
boost::dll::fs::error_code ec;
sl.load(shared_library_path, load_mode::load_with_altered_search_path, ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
}
{
shared_library sl(shared_library_path, load_mode::rtld_lazy | load_mode::rtld_global);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
}
{
shared_library sl(shared_library_path, load_mode::rtld_local);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
}
{
shared_library sl(shared_library_path, load_mode::rtld_now);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
}
{
fs_copy_guard guard(shared_library_path);
boost::dll::fs::path platform_independent_path = guard.actual_path_;
platform_independent_path.replace_extension();
if (platform_independent_path.filename().wstring().find(L"lib") == 0) {
platform_independent_path
= platform_independent_path.parent_path() / platform_independent_path.filename().wstring().substr(3);
}
std::cerr << "platform_independent_path: " << platform_independent_path << '\n';
shared_library sl(platform_independent_path, load_mode::append_decorations);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
sl.unload();
BOOST_TEST(!sl.is_loaded());
BOOST_TEST(!sl);
}
{
shared_library sl(shared_library_path, load_mode::rtld_now | load_mode::rtld_global | load_mode::load_with_altered_search_path);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
}
{
boost::dll::fs::error_code ec;
shared_library sl(shared_library_path, load_mode::rtld_lazy | load_mode::rtld_global, ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(!ec);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
}
{
shared_library sl;
sl.load(shared_library_path, load_mode::rtld_lazy | load_mode::rtld_global);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
}
{ // Non-default flags with assignment
shared_library sl(shared_library_path,
load_mode::rtld_now | load_mode::rtld_global | load_mode::load_with_altered_search_path
// `load_mode::rtld_deepbind` is incompatible with sanitizers:
// You are trying to dlopen a libtest_library.so shared library with RTLD_DEEPBIND flag which is incompatibe with sanitizer runtime
// (see https://github.com/google/sanitizers/issues/611 for details).
#ifndef BOOST_TRAVISCI_BUILD
| load_mode::rtld_deepbind
#endif
);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
boost::dll::fs::error_code ec;
shared_library sl2(sl, ec);
BOOST_TEST(!ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(sl2.is_loaded());
BOOST_TEST(sl2);
BOOST_TEST(sl2.location() == sl.location());
shared_library sl3(sl);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(sl3.is_loaded());
BOOST_TEST(sl3);
shared_library sl4;
sl4.assign(sl, ec);
BOOST_TEST(!ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(sl4.is_loaded());
BOOST_TEST(sl4);
}
{ // Non-default flags with assignment and error_code
boost::dll::fs::error_code ec;
shared_library sl(shared_library_path, load_mode::rtld_lazy | load_mode::rtld_global, ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(!ec);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
shared_library sl2(sl, ec);
BOOST_TEST(!ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(sl2.is_loaded());
BOOST_TEST(sl2);
BOOST_TEST(sl2.location() == sl.location());
shared_library sl3(sl);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(sl3.is_loaded());
BOOST_TEST(sl3);
BOOST_TEST(sl3.location() == sl.location());
}
{ // self_load
shared_library sl(program_location());
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
std::cout << "\nProgram location: " << program_location();
std::cout << "\nLibrary location: " << sl.location();
BOOST_TEST( boost::dll::fs::equivalent(sl.location(), program_location()) );
// Make sure that works with boost::system::error_code
boost::system::error_code ec;
shared_library sl2(program_location());
BOOST_TEST(sl2.is_loaded());
BOOST_TEST( boost::dll::fs::equivalent(sl2.location(), program_location()) );
BOOST_TEST(sl2);
BOOST_TEST(!ec);
BOOST_TEST(sl == sl2);
BOOST_TEST(!(sl < sl2 || sl2 <sl));
BOOST_TEST(!(sl != sl2));
sl.load(shared_library_path);
BOOST_TEST(sl != sl2);
BOOST_TEST(sl < sl2 || sl2 <sl);
BOOST_TEST(!(sl == sl2));
sl.unload();
BOOST_TEST(!sl);
BOOST_TEST(sl != sl2);
BOOST_TEST(sl < sl2 || sl2 <sl);
BOOST_TEST(!(sl == sl2));
sl2.unload();
BOOST_TEST(!sl2);
BOOST_TEST(sl == sl2);
BOOST_TEST(!(sl < sl2 || sl2 <sl));
BOOST_TEST(!(sl != sl2));
// assigning self
sl.load(program_location());
sl2 = sl;
BOOST_TEST(sl == sl2);
BOOST_TEST(sl.location() == sl2.location());
}
{
shared_library sl;
boost::dll::fs::error_code ec;
sl.load(shared_library_path, load_mode::rtld_lazy | load_mode::rtld_global, ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(!ec);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
sl.load(program_location());
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
sl.load(program_location());
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(!ec);
}
{ // self_load
shared_library sl;
boost::dll::fs::error_code ec;
sl.load(program_location());
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(!ec);
}
{ // unload
shared_library sl(shared_library_path);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
BOOST_TEST(lib_path_equal(sl.location(), shared_library_path));
sl.unload();
BOOST_TEST(!sl.is_loaded());
BOOST_TEST(!sl);
}
{ // error_code load calls test
std::error_code ec;
shared_library sl(shared_library_path / "dir_that_does_not_exist", ec);
BOOST_TEST(ec);
BOOST_TEST(!sl.is_loaded());
BOOST_TEST(!sl);
boost::dll::fs::path bad_path(shared_library_path);
bad_path += ".1.1.1.1.1.1";
sl.load(bad_path, ec);
BOOST_TEST(ec);
BOOST_TEST(!sl.is_loaded());
BOOST_TEST(!sl);
sl.load(shared_library_path, ec);
BOOST_TEST(!ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
shared_library sl2(bad_path, ec);
BOOST_TEST(ec);
BOOST_TEST(!sl2.is_loaded());
BOOST_TEST(!sl2);
shared_library sl3(shared_library_path, ec);
BOOST_TEST(!ec);
BOOST_TEST(sl3.is_loaded());
BOOST_TEST(sl3);
sl.load("", ec);
BOOST_TEST(ec);
BOOST_TEST(!sl.is_loaded());
BOOST_TEST(!sl);
}
{ // error_code load calls test
std::error_code ec; // make sure that works with std::error_code
shared_library sl(shared_library_path / "dir_that_does_not_exist", ec);
BOOST_TEST(ec);
BOOST_TEST(!sl.is_loaded());
BOOST_TEST(!sl);
boost::dll::fs::path bad_path(shared_library_path);
bad_path += ".1.1.1.1.1.1";
sl.load(bad_path, ec);
BOOST_TEST(ec);
BOOST_TEST(!sl.is_loaded());
BOOST_TEST(!sl);
sl.load(shared_library_path, ec);
BOOST_TEST(!ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
shared_library sl2(bad_path, ec);
BOOST_TEST(ec);
BOOST_TEST(!sl2.is_loaded());
BOOST_TEST(!sl2);
shared_library sl3(shared_library_path, ec);
BOOST_TEST(!ec);
BOOST_TEST(sl3.is_loaded());
BOOST_TEST(sl3);
sl.load("", ec);
BOOST_TEST(ec);
BOOST_TEST(!sl.is_loaded());
BOOST_TEST(!sl);
}
{ // error_code load calls test
boost::system::error_code ec; // make sure that works with boost::system::error_code
shared_library sl(shared_library_path / "dir_that_does_not_exist", ec);
BOOST_TEST(ec);
BOOST_TEST(!sl.is_loaded());
BOOST_TEST(!sl);
boost::dll::fs::path bad_path(shared_library_path);
bad_path += ".1.1.1.1.1.1";
sl.load(bad_path, ec);
BOOST_TEST(ec);
BOOST_TEST(!sl.is_loaded());
BOOST_TEST(!sl);
sl.load(shared_library_path, ec);
BOOST_TEST(!ec);
BOOST_TEST(sl.is_loaded());
BOOST_TEST(sl);
shared_library sl2(bad_path, ec);
BOOST_TEST(ec);
BOOST_TEST(!sl2.is_loaded());
BOOST_TEST(!sl2);
shared_library sl3(shared_library_path, ec);
BOOST_TEST(!ec);
BOOST_TEST(sl3.is_loaded());
BOOST_TEST(sl3);
sl.load("", ec);
BOOST_TEST(ec);
BOOST_TEST(!sl.is_loaded());
BOOST_TEST(!sl);
}
shared_library_path = do_find_correct_libs_path(argc, argv, "library1");
fs_copy_guard guard(shared_library_path);
shared_library starts_with_lib(
boost::dll::fs::path(guard.actual_path_).replace_extension(),
load_mode::append_decorations
);
starts_with_lib.load(
boost::dll::fs::path(guard.actual_path_).replace_extension(),
load_mode::append_decorations
);
return boost::report_errors();
}
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