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// Copyright (c) 2018-2025 Jean-Louis Leroy
// 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)
#include <boost/openmethod.hpp>
#include <boost/openmethod/preamble.hpp>
#include <boost/openmethod/policies/throw_error_handler.hpp>
#include <boost/openmethod/initialize.hpp>
#include <boost/openmethod/interop/std_shared_ptr.hpp>
#include "test_util.hpp"
#include <sstream>
#define BOOST_TEST_MODULE openmethod
#include <boost/test/unit_test.hpp>
using namespace boost::openmethod;
using namespace test_matrices;
struct capture_output : policies::output {
template<class Registry>
struct fn {
inline static std::ostringstream os;
};
};
template<int N>
struct errors_ : test_registry_<N, capture_output> {
struct capture {
using error_handler =
typename test_registry_<N, capture_output>::error_handler;
using output = typename test_registry_<N, capture_output>::output;
capture() {
prev = error_handler::set(
[this](const typename errors_::error_handler::error_variant&
error) {
prev(error);
std::visit([](auto&& arg) { throw arg; }, error);
});
}
~capture() {
error_handler::set(prev);
output::os.clear();
}
auto operator()() const {
return output::os.str();
}
typename errors_::error_handler::function_type prev;
};
};
namespace TEST_NS {
struct registry : errors_<__COUNTER__> {};
BOOST_OPENMETHOD(
transpose, (virtual_ptr<const matrix, registry>), void, registry);
BOOST_OPENMETHOD_OVERRIDE(
transpose, (virtual_ptr<const diagonal_matrix, registry>), void) {
}
BOOST_AUTO_TEST_CASE(no_initialization) {
if constexpr (registry::has_runtime_checks) {
// throw during virtual_ptr construction, because of hash table lookup
{
registry::capture capture;
BOOST_CHECK_THROW(
(shared_virtual_ptr<matrix, registry>{
std::make_shared<diagonal_matrix>()}),
not_initialized);
BOOST_TEST(capture() == "not initialized\n");
}
// throw during method call
{
registry::capture capture;
BOOST_CHECK_THROW(
transpose(make_shared_virtual<diagonal_matrix, registry>()),
not_initialized);
}
} else {
try {
registry::require_initialized();
} catch (not_initialized&) {
BOOST_TEST_FAIL("should not have thrown in release variant");
}
}
}
} // namespace TEST_NS
namespace TEST_NS {
using registry = errors_<__COUNTER__>;
BOOST_OPENMETHOD(
transpose, (virtual_ptr<const matrix, registry>), void, registry);
// without any overrider initialize() would do nothing
BOOST_OPENMETHOD_OVERRIDE(
transpose, (virtual_ptr<const matrix, registry>), void) {
}
BOOST_AUTO_TEST_CASE(initialize_unknown_class) {
if constexpr (registry::has_runtime_checks) {
{
registry::capture capture;
BOOST_CHECK_THROW(initialize<registry>(), missing_class);
BOOST_TEST(capture().find("unknown class") != std::string::npos);
}
}
}
} // namespace TEST_NS
namespace TEST_NS {
using registry = errors_<__COUNTER__>;
// don't register dense_matrix
BOOST_OPENMETHOD_CLASSES(matrix, diagonal_matrix, registry);
BOOST_OPENMETHOD(transpose, (virtual_<const matrix&>), void, registry);
// without any overrider initialize() would do nothing
BOOST_OPENMETHOD_OVERRIDE(transpose, (const matrix&), void) {
}
BOOST_AUTO_TEST_CASE(call_unknown_class) {
if constexpr (registry::has_runtime_checks) {
{
initialize<registry>();
registry::capture capture;
BOOST_CHECK_THROW(transpose(dense_matrix()), missing_class);
BOOST_TEST(capture().find("unknown class") != std::string::npos);
}
}
}
} // namespace TEST_NS
namespace TEST_NS {
using namespace test_matrices;
using registry = errors_<__COUNTER__>;
BOOST_OPENMETHOD_CLASSES(matrix, dense_matrix, diagonal_matrix, registry);
BOOST_OPENMETHOD(
times,
(virtual_ptr<const matrix, registry>, virtual_ptr<const matrix, registry>),
void, registry);
BOOST_OPENMETHOD_OVERRIDE(
times,
(virtual_ptr<const matrix, registry>,
virtual_ptr<const diagonal_matrix, registry>),
void) {
}
BOOST_OPENMETHOD_OVERRIDE(
times,
(virtual_ptr<const diagonal_matrix, registry>,
virtual_ptr<const matrix, registry>),
void) {
}
BOOST_AUTO_TEST_CASE(bad_call) {
auto report = initialize<registry>().report;
BOOST_TEST(report.not_implemented == 1u);
BOOST_TEST(report.ambiguous == 1u);
{
registry::capture capture;
matrix a, b;
BOOST_CHECK_THROW(times(a, b), no_overrider);
BOOST_TEST(capture().find("not implemented") != std::string::npos);
}
{
registry::capture capture;
diagonal_matrix a, b;
BOOST_CHECK_THROW(times(a, b), ambiguous_call);
BOOST_TEST(capture().find("ambiguous") != std::string::npos);
}
}
BOOST_AUTO_TEST_CASE(bad_call_type_ids) {
initialize<registry>();
registry::capture capture;
try {
diagonal_matrix a, b;
times(a, b);
BOOST_FAIL("should have thrown");
} catch (const ambiguous_call& error) {
BOOST_TEST(error.arity == 2u);
BOOST_TEST(error.types[0] == &typeid(diagonal_matrix));
BOOST_TEST(error.types[1] == &typeid(diagonal_matrix));
} catch (...) {
BOOST_FAIL("wrong exception");
}
}
} // namespace TEST_NS
namespace TEST_NS {
using namespace test_matrices;
using registry = errors_<__COUNTER__>;
BOOST_OPENMETHOD_CLASSES(matrix, dense_matrix, diagonal_matrix, registry);
BOOST_OPENMETHOD(
times,
(shared_virtual_ptr<const matrix, registry>,
shared_virtual_ptr<const matrix, registry>),
void, registry);
BOOST_AUTO_TEST_CASE(bad_call_type_ids_smart_ptr) {
initialize<registry>();
registry::capture capture;
try {
auto a = make_shared_virtual<const diagonal_matrix, registry>();
auto b = make_shared_virtual<const diagonal_matrix, registry>();
times(a, b);
BOOST_FAIL("should have thrown");
} catch (const no_overrider& error) {
BOOST_TEST(error.arity == 2u);
BOOST_TEST(error.types[0] == &typeid(diagonal_matrix));
BOOST_TEST(error.types[1] == &typeid(diagonal_matrix));
} catch (...) {
BOOST_FAIL("wrong exception");
}
}
} // namespace TEST_NS
namespace TEST_NS {
using namespace test_matrices;
struct registry
: test_registry_<__COUNTER__>::with<policies::throw_error_handler> {};
BOOST_OPENMETHOD_CLASSES(matrix, dense_matrix, diagonal_matrix, registry);
BOOST_OPENMETHOD(
times, (virtual_<const matrix&>, virtual_<const matrix&>), void, registry);
BOOST_AUTO_TEST_CASE(throw_error) {
initialize<registry>();
try {
times(matrix(), matrix());
BOOST_FAIL("should have thrown");
} catch (const std::runtime_error& error) {
BOOST_TEST(
std::string(error.what()).find("not implemented") !=
std::string::npos);
} catch (...) {
BOOST_FAIL("wrong exception");
}
}
} // namespace TEST_NS
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