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// MPark.Variant
//
// Copyright Michael Park, 2015-2017
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
#include <mpark/variant.hpp>
#include <string>
#include <gtest/gtest.h>
TEST(Ctor_InPlace, IndexDirect) {
mpark::variant<int, std::string> v(mpark::in_place_index_t<0>{}, 42);
EXPECT_EQ(42, mpark::get<0>(v));
/* constexpr */ {
constexpr mpark::variant<int, const char *> cv(mpark::in_place_index_t<0>{},
42);
static_assert(42 == mpark::get<0>(cv), "");
}
}
TEST(Ctor_InPlace, IndexDirectDuplicate) {
mpark::variant<int, int> v(mpark::in_place_index_t<0>{}, 42);
EXPECT_EQ(42, mpark::get<0>(v));
/* constexpr */ {
constexpr mpark::variant<int, int> cv(mpark::in_place_index_t<0>{}, 42);
static_assert(42 == mpark::get<0>(cv), "");
}
}
TEST(Ctor_InPlace, IndexConversion) {
mpark::variant<int, std::string> v(mpark::in_place_index_t<1>{}, "42");
EXPECT_EQ("42", mpark::get<1>(v));
/* constexpr */ {
constexpr mpark::variant<int, const char *> cv(mpark::in_place_index_t<0>{},
1.1);
static_assert(1 == mpark::get<0>(cv), "");
}
}
TEST(Ctor_InPlace, IndexInitializerList) {
mpark::variant<int, std::string> v(mpark::in_place_index_t<1>{}, {'4', '2'});
EXPECT_EQ("42", mpark::get<1>(v));
}
TEST(Ctor_InPlace, TypeDirect) {
mpark::variant<int, std::string> v(mpark::in_place_type_t<std::string>{},
"42");
EXPECT_EQ("42", mpark::get<std::string>(v));
/* constexpr */ {
constexpr mpark::variant<int, const char *> cv(
mpark::in_place_type_t<int>{}, 42);
static_assert(42 == mpark::get<int>(cv), "");
}
}
TEST(Ctor_InPlace, TypeConversion) {
mpark::variant<int, std::string> v(mpark::in_place_type_t<int>{}, 42.5);
EXPECT_EQ(42, mpark::get<int>(v));
/* constexpr */ {
constexpr mpark::variant<int, const char *> cv(
mpark::in_place_type_t<int>{}, 42.5);
static_assert(42 == mpark::get<int>(cv), "");
}
}
TEST(Ctor_InPlace, TypeInitializerList) {
mpark::variant<int, std::string> v(mpark::in_place_type_t<std::string>{},
{'4', '2'});
EXPECT_EQ("42", mpark::get<std::string>(v));
}
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