97 lines
5.0 KiB
C++
97 lines
5.0 KiB
C++
/* Unit testing for outcomes
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(C) 2013-2019 Niall Douglas <http://www.nedproductions.biz/> (2 commits)
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Boost Software License - Version 1.0 - August 17th, 2003
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Permission is hereby granted, free of charge, to any person or organization
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obtaining a copy of the software and accompanying documentation covered by
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this license (the "Software") to use, reproduce, display, distribute,
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execute, and transmit the Software, and to prepare derivative works of the
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Software, and to permit third-parties to whom the Software is furnished to
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do so, all subject to the following:
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The copyright notices in the Software and this entire statement, including
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the above license grant, this restriction and the following disclaimer,
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must be included in all copies of the Software, in whole or in part, and
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all derivative works of the Software, unless such copies or derivative
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works are solely in the form of machine-executable object code generated by
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a source language processor.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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#include <boost/outcome/outcome.hpp>
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#include <boost/test/unit_test.hpp>
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#include <boost/test/unit_test_monitor.hpp>
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BOOST_OUTCOME_AUTO_TEST_CASE(issues_0140_result, "Construction of non copy constructible value_type fails to not compile")
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{
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namespace out = BOOST_OUTCOME_V2_NAMESPACE;
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enum op
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{
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constructed,
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moved,
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copied
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};
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struct NotCopyMoveConstructible
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{
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op v{op::constructed};
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NotCopyMoveConstructible() = default;
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NotCopyMoveConstructible(const NotCopyMoveConstructible &o) = delete;
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NotCopyMoveConstructible(NotCopyMoveConstructible &&) = delete;
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NotCopyMoveConstructible &operator=(const NotCopyMoveConstructible &) = delete;
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NotCopyMoveConstructible &operator=(NotCopyMoveConstructible &&) = delete;
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~NotCopyMoveConstructible() = default;
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};
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struct NotMoveConstructible
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{
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op v{op::constructed};
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NotMoveConstructible() = default;
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NotMoveConstructible(const NotMoveConstructible & /*unused*/)
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: v(op::copied)
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{
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}
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NotMoveConstructible(NotMoveConstructible &&) = delete;
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NotMoveConstructible &operator=(const NotMoveConstructible &) = delete;
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NotMoveConstructible &operator=(NotMoveConstructible &&) = delete;
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~NotMoveConstructible() = default;
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};
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struct NotCopyConstructible
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{
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op v{op::constructed};
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NotCopyConstructible() = default;
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NotCopyConstructible(NotCopyConstructible && /*unused*/) noexcept : v(op::moved) {}
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NotCopyConstructible(const NotCopyConstructible & /*unused*/) = delete;
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NotCopyConstructible &operator=(const NotCopyConstructible &) = delete;
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NotCopyConstructible &operator=(NotCopyConstructible &&) = delete;
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~NotCopyConstructible() = default;
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};
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// Uncopyable and immovable items should be neither copyable nor moveable
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static_assert(!std::is_copy_constructible<out::result<NotCopyMoveConstructible>>::value, "result<NotCopyMoveConstructible> is copy constructible!");
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static_assert(!std::is_move_constructible<out::result<NotCopyMoveConstructible>>::value, "result<NotCopyMoveConstructible> is move constructible!");
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static_assert(!std::is_convertible<const NotCopyMoveConstructible &, NotCopyMoveConstructible>::value, "");
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static_assert(!std::is_convertible<NotCopyMoveConstructible &&, NotCopyMoveConstructible>::value, "");
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static_assert(!std::is_constructible<out::result<NotCopyMoveConstructible>, const NotCopyMoveConstructible &>::value, "result<NotCopyMoveConstructible> is constructible from const NotCopyMoveConstructible&!");
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static_assert(!std::is_constructible<out::result<NotCopyMoveConstructible>, NotCopyMoveConstructible &&>::value, "result<NotCopyMoveConstructible> is constructible from NotCopyMoveConstructible&&!");
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// Immovable items should fall back to copy
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static_assert(!std::is_move_constructible<NotMoveConstructible>::value, "NotMoveConstructible is move constructible!");
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static_assert(std::is_move_constructible<out::result<NotMoveConstructible>>::value, "result<NotMoveConstructible> is not move constructible!");
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static_assert(std::is_constructible<out::result<NotMoveConstructible>, const NotMoveConstructible &>::value, "result<NotMoveConstructible> is not constructible from NotMoveConstructible&&!");
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// Uncopyable items should never move (this was the bug report)
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static_assert(!std::is_copy_constructible<out::result<NotCopyConstructible>>::value, "result<NotCopyConstructible> is copy constructible!");
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static_assert(!std::is_constructible<out::result<NotCopyConstructible>, const NotCopyConstructible &>::value, "result<NotCopyConstructible> is constructible from const NotCopyConstructible&!");
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BOOST_CHECK(true);
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}
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