| 539 | template< |
| 540 | template <class...> class Variant, class Monostate, class... Context > |
| 541 | static |
| 542 | void |
| 543 | testVariant( Context const& ... ctx ) |
| 544 | { |
| 545 | using std::get; |
| 546 | using Var = Variant<int, ::value_to_test_ns::T2, std::string>; |
| 547 | |
| 548 | value jv(4); |
| 549 | auto v = value_to<Var>( jv, ctx... ); |
| 550 | BOOST_TEST( v.index() == 0 ); |
| 551 | BOOST_TEST( get<0>(v) == 4 ); |
| 552 | |
| 553 | jv = "foobar"; |
| 554 | v = value_to<Var>( jv, ctx... ); |
| 555 | BOOST_TEST( v.index() == 2 ); |
| 556 | BOOST_TEST( get<2>(v) == "foobar" ); |
| 557 | |
| 558 | jv = "T2"; |
| 559 | v = value_to<Var>( jv, ctx... ); |
| 560 | BOOST_TEST( v.index() == 1 ); |
| 561 | |
| 562 | jv = 3.5; |
| 563 | BOOST_TEST_THROWS_WITH_LOCATION( |
| 564 | value_to<Var>( jv, ctx... )); |
| 565 | |
| 566 | value_to<Monostate>( value(), ctx... ); |
| 567 | BOOST_TEST_THROWS_WITH_LOCATION( |
| 568 | value_to<Monostate>( jv, ctx... )); |
| 569 | |
| 570 | jv = 1024; |
| 571 | using VT11 = Variant< value_to_test_ns::T11 >; |
| 572 | VT11 v11 = value_to< VT11 >( jv, ctx... ); |
| 573 | BOOST_TEST( v11.index() == 0 ); |
| 574 | BOOST_TEST( get<0>(v11).n == 1024 ); |
| 575 | |
| 576 | jv = nullptr; |
| 577 | using V_T3_T1 = Variant<value_to_test_ns::T3, value_to_test_ns::T1>; |
| 578 | auto v_t3_t1 = value_to<V_T3_T1>( jv, ctx... ); |
| 579 | BOOST_TEST( v_t3_t1.index() == 1 ); |
| 580 | } |
| 581 | |
| 582 | template< class... Context > |
| 583 | static |