71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
#include <doctest/doctest.h>
|
|
|
|
#ifndef DOCTEST_CONFIG_NO_EXCEPTIONS
|
|
|
|
DOCTEST_MAKE_STD_HEADERS_CLEAN_FROM_WARNINGS_ON_WALL_BEGIN
|
|
#include <thread>
|
|
#include <mutex>
|
|
#include <exception>
|
|
#include <stdexcept>
|
|
DOCTEST_MAKE_STD_HEADERS_CLEAN_FROM_WARNINGS_ON_WALL_END
|
|
|
|
DOCTEST_MSVC_SUPPRESS_WARNING(4626) // assignment operator was implicitly defined as deleted
|
|
|
|
TEST_CASE("threads...") {
|
|
auto call_from_thread = [](int value) {
|
|
INFO("print me!");
|
|
// one of these has to fail
|
|
CHECK(value == 1);
|
|
CHECK(value == 2);
|
|
};
|
|
|
|
int data_1 = 1;
|
|
int data_2 = 2;
|
|
CAPTURE(data_1); // will not be used for assertions in other threads
|
|
|
|
// subcases have to be used only in the main thread (where the test runner is)
|
|
SUBCASE("test runner thread") {
|
|
call_from_thread(data_1);
|
|
}
|
|
|
|
// normal threads which are assumed not to throw
|
|
SUBCASE("spawned threads") {
|
|
std::thread t1(call_from_thread, data_1);
|
|
std::thread t2(call_from_thread, data_2);
|
|
|
|
t1.join();
|
|
t2.join();
|
|
}
|
|
|
|
// exceptions from threads (that includes failing REQUIRE asserts) have to be handled explicitly
|
|
SUBCASE("spawned threads with exception propagation") {
|
|
std::exception_ptr exception_ptr = nullptr;
|
|
std::mutex mutex;
|
|
|
|
auto might_throw = [&]() {
|
|
try {
|
|
REQUIRE(1 == 1);
|
|
REQUIRE(1 == 2); // will fail and throw an exception
|
|
MESSAGE("not reached!");
|
|
} catch(...) {
|
|
// make sure there are no races when dealing with the exception ptr
|
|
std::lock_guard<std::mutex> lock(mutex);
|
|
|
|
// set the exception pointer in case of an exception - might overwrite
|
|
// another exception but here we care about propagating any exception - not all
|
|
exception_ptr = std::current_exception();
|
|
}
|
|
};
|
|
std::thread t1(might_throw);
|
|
std::thread t2(might_throw);
|
|
|
|
t1.join();
|
|
t2.join();
|
|
|
|
// if any thread has thrown an exception - rethrow it
|
|
if(exception_ptr)
|
|
std::rethrow_exception(exception_ptr);
|
|
}
|
|
}
|
|
|
|
#endif // DOCTEST_CONFIG_NO_EXCEPTIONS
|