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- /* Unit testing for outcomes
- (C) 2013-2019 Niall Douglas <http://www.nedproductions.biz/> (9 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.
- */
- #include <boost/outcome/outcome.hpp>
- #include <boost/test/unit_test.hpp>
- #include <boost/test/unit_test_monitor.hpp>
- BOOST_OUTCOME_AUTO_TEST_CASE(issues_0010_test, "Expected's operator->(), operator*() and .error() throw exceptions when they should not")
- {
- using namespace BOOST_OUTCOME_V2_NAMESPACE;
- const char *a = "hi", *b = "bye";
- struct udt1 // NOLINT
- {
- const char *_v{nullptr};
- udt1() = default;
- constexpr explicit udt1(const char *v) noexcept : _v(v) {}
- constexpr udt1(udt1 &&o) noexcept : _v(o._v) { o._v = nullptr; }
- udt1(const udt1 &) = default;
- constexpr udt1 &operator=(udt1 &&o) noexcept
- {
- _v = o._v;
- o._v = nullptr;
- return *this;
- }
- udt1 &operator=(const udt1 &) = delete;
- constexpr const char *operator*() const noexcept { return _v; }
- };
- struct udt2 // NOLINT
- {
- const char *_v{nullptr};
- udt2() = default;
- constexpr explicit udt2(const char *v) noexcept : _v(v) {}
- constexpr udt2(udt2 &&o) noexcept : _v(o._v) { o._v = nullptr; }
- udt2(const udt2 &) = default;
- constexpr udt2 &operator=(udt2 &&o) noexcept
- {
- _v = o._v;
- o._v = nullptr;
- return *this;
- }
- udt1 &operator=(const udt1 &) = delete;
- constexpr const char *operator*() const noexcept { return _v; }
- };
- result<udt1, udt2> p(udt1{a});
- result<udt1, udt2> n(udt2{b});
- // State check
- BOOST_CHECK(p.has_value());
- BOOST_CHECK(!n.has_value());
- // These should behave as expected (!)
- // BOOST_CHECK_NO_THROW(p.value());
- // BOOST_CHECK_NO_THROW(n.value());
- // And state is not destroyed
- BOOST_CHECK(p.has_value() && *p.assume_value() == a);
- BOOST_CHECK(!n.has_value() && *n.assume_error() == b);
- // LEWG Expected provides rvalue ref semantics for operator*(), error() and error_or()
- udt1 a1(std::move(p.assume_value()));
- BOOST_CHECK(*a1 == a);
- BOOST_CHECK(*p.assume_value() == nullptr);
- udt2 e2(std::move(n).assume_error());
- BOOST_CHECK(*e2 == b);
- BOOST_CHECK(*n.assume_error() == nullptr); // NOLINT
- }
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