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// Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.txt or copy at
// https://www.boost.org/LICENSE_1_0.txt)
// SPDX-License-Identifier: BSL-1.0
/**\file
* Test that assertions and messages are thread-safe.
*
* This is done by spamming assertions and messages on multiple subthreads.
* In manual, this reliably causes segfaults if the test is linked against
* a non-thread-safe version of Catch2.
*
* The CTest test definition should also verify that the final assertion
* count is correct.
*/
#include <catch2/catch_test_macros.hpp>
#include <thread>
#include <vector>
TEST_CASE( "Failed REQUIRE in the main thread is fine", "[!shouldfail]" ) {
std::vector<std::thread> threads;
for ( size_t t = 0; t < 4; ++t) {
threads.emplace_back( [t]() {
CAPTURE(t);
for (size_t i = 0; i < 100; ++i) {
CAPTURE(i);
CHECK( false );
CHECK( true );
}
} );
}
for (auto& t : threads) {
t.join();
}
REQUIRE( false );
}
TEST_CASE( "Using unscoped messages in sibling threads", "[!shouldfail]" ) {
std::vector<std::thread> threads;
for ( size_t t = 0; t < 4; ++t) {
threads.emplace_back( [t]() {
UNSCOPED_INFO("thread " << t << " start");
for (size_t i = 0; i < 100; ++i) {
for (size_t j = 0; j < 4; ++j) {
UNSCOPED_INFO("t=" << i << ", " << j);
}
CHECK( false );
}
} );
}
for (auto& t : threads) {
t.join();
}
REQUIRE( false );
}
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