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- /* Unit testing for outcomes
- (C) 2013-2019 Niall Douglas <http://www.nedproductions.biz/> (7 commits)
- Boost Software License - Version 1.0 - August 17th, 2003
- Permission is hereby granted, free of charge, to any person or organization
- obtaining a copy of the software and accompanying documentation covered by
- this license (the "Software") to use, reproduce, display, distribute,
- execute, and transmit the Software, and to prepare derivative works of the
- Software, and to permit third-parties to whom the Software is furnished to
- do so, all subject to the following:
- The copyright notices in the Software and this entire statement, including
- the above license grant, this restriction and the following disclaimer,
- must be included in all copies of the Software, in whole or in part, and
- all derivative works of the Software, unless such copies or derivative
- works are solely in the form of machine-executable object code generated by
- a source language processor.
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
- SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
- FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
- ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- DEALINGS IN THE SOFTWARE.
- */
- #ifdef _MSC_VER
- #pragma warning(disable : 4702) // unreachable code
- #endif
- #include <boost/outcome/outcome.hpp>
- #include <boost/test/unit_test.hpp>
- #include <boost/test/unit_test_monitor.hpp>
- BOOST_OUTCOME_AUTO_TEST_CASE(works_outcome_udts, "Tests that the outcome works as intended with user-defined types")
- {
- using namespace BOOST_OUTCOME_V2_NAMESPACE;
- // No default constructor, no copy/move, no assignment
- {
- struct udt
- {
- int a;
- explicit udt(int _a)
- : a(_a)
- {
- }
- udt() = delete;
- udt(const udt &) = delete;
- udt(udt &&) = delete;
- udt &operator=(const udt &) = delete;
- udt &operator=(udt &&) = delete;
- ~udt() = default;
- };
- outcome<udt> foo(in_place_type<udt>, 5);
- BOOST_CHECK(5 == foo.value().a);
- }
- #ifndef BOOST_NO_EXCEPTIONS
- // Emplace construct, throws during move and copy
- {
- struct udt
- {
- std::string a;
- explicit udt(std::string _a)
- : a(std::move(_a))
- {
- }
- udt() = delete;
- udt(const udt & /*unused*/) { throw std::logic_error("copy"); }
- udt(udt && /*unused*/) noexcept(false) { throw std::logic_error("move"); } // NOLINT
- udt &operator=(const udt & /*unused*/) { throw std::logic_error("copy"); }
- udt &operator=(udt && /*unused*/) noexcept(false) { throw std::logic_error("move"); } // NOLINT
- ~udt() { a.clear(); }
- };
- static_assert(!std::is_default_constructible<udt>::value, "udt is default constructible");
- static_assert(std::is_copy_constructible<udt>::value, "udt is not copy constructible");
- static_assert(std::is_move_constructible<udt>::value, "udt is not move constructible");
- static_assert(!std::is_default_constructible<outcome<udt>>::value, "outcome<udt> is default constructible");
- static_assert(std::is_copy_constructible<outcome<udt>>::value, "outcome<udt> is not copy constructible");
- static_assert(std::is_move_constructible<outcome<udt>>::value, "outcome<udt> is not move constructible");
- // Emplace constructs
- outcome<udt> foo(in_place_type<udt>, "niall");
- BOOST_CHECK("niall" == foo.value().a);
- try
- {
- auto foo2(foo); // NOLINT
- BOOST_CHECK(false);
- }
- catch(const std::logic_error &e)
- {
- BOOST_CHECK(!strcmp(e.what(), "copy"));
- }
- catch(...)
- {
- BOOST_CHECK(false);
- }
- BOOST_CHECK("niall" == foo.value().a);
- try
- {
- auto foo2(std::move(foo));
- BOOST_CHECK(false);
- }
- catch(const std::logic_error &e)
- {
- BOOST_CHECK(!strcmp(e.what(), "move"));
- }
- catch(...)
- {
- BOOST_CHECK(false);
- }
- BOOST_CHECK("niall" == foo.value().a); // NOLINT
- // Does throwing during copy assignment work?
- {
- outcome<udt> foo2(in_place_type<udt>, "douglas");
- try
- {
- foo2 = foo;
- BOOST_CHECK(false);
- }
- catch(const std::logic_error &e)
- {
- BOOST_CHECK(!strcmp(e.what(), "copy"));
- BOOST_CHECK(foo2.value().a == "douglas");
- }
- catch(...)
- {
- BOOST_CHECK(false);
- }
- BOOST_CHECK("niall" == foo.value().a);
- }
- // Does throwing during move assignment work?
- {
- outcome<udt> foo2(in_place_type<udt>, "douglas");
- try
- {
- foo2 = std::move(foo);
- BOOST_CHECK(false);
- }
- catch(const std::logic_error &e)
- {
- BOOST_CHECK(!strcmp(e.what(), "move"));
- BOOST_CHECK(foo2.value().a == "douglas");
- }
- catch(...)
- {
- BOOST_CHECK(false);
- }
- BOOST_CHECK("niall" == foo.value().a); // NOLINT
- }
- }
- #endif
- }
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