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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
+}