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etl/test/test_variant_variadic.cpp
John Wellbelove 36d126c93e Squashed commit of the following: 
commit c217b3ec12b26104e8f1027c1766cc9d49b93a29
Author: John Wellbelove <john.wellbelove@asterconsulting.co.uk>
Date:   Thu Apr 21 11:57:55 2022 +0200

    Added mutex traits

    Added transparent comparator test to multimap

commit b6487b869e5599ea067d45af1778d5c0f90c6a52
Author: John Wellbelove <john.wellbelove@asterconsulting.co.uk>
Date:   Thu Apr 21 10:42:06 2022 +0200

    Modified char8_t, char16_t and char32_t macros.

    Added conditional compilation on the presense of native char8_t, char16_t and char32_t types.

commit 2c2bd86ce3d5d5d698e922518421a93f70a9cc1e
Author: John Wellbelove <john.wellbelove@asterconsulting.co.uk>
Date:   Thu Apr 21 10:29:04 2022 +0200

    Modified char8_t, char16_t and char32_t macros.

    Added conditional compilation on the presense of native char8_t, char16_t and char32_t types.

commit d16242d20e9b6df6752a926d862d0016a452bada
Author: John Wellbelove <john.wellbelove@asterconsulting.co.uk>
Date:   Wed Apr 20 13:53:37 2022 +0200

    Expanded constexpr test

commit fad097e6656cd4639c2d81bc8cad2467cae4b4ce
Author: John Wellbelove <john.wellbelove@asterconsulting.co.uk>
Date:   Wed Apr 20 13:53:05 2022 +0200

    Added ETL_OVERRIDE to state chart process_event()

commit 25403c2225f3aff0b99105a54cfc44f1cf88d527
Author: John Wellbelove <john.wellbelove@asterconsulting.co.uk>
Date:   Wed Apr 20 13:41:00 2022 +0200

    Added test_etl_traits

commit e42c778cf645cb8fc06e5930336e7f1183004dfe
Author: John Wellbelove <john.wellbelove@asterconsulting.co.uk>
Date:   Wed Apr 20 13:38:22 2022 +0200

    Removed unused code.

commit 5a25c0c1973f7094ef3aa5b6f29529e96450451c
Author: John Wellbelove <john.wellbelove@asterconsulting.co.uk>
Date:   Sun Apr 17 13:17:29 2022 +0200

    Large and small character support macros

commit 6a463fb65ef655b700a8dea381265a3c1b622658
Author: Melg Eight <public.melg8@gmail.com>
Date:   Sun Apr 17 13:54:34 2022 +0300

    Fix spelling (#535)

    Signed-off-by: Melg Eight <public.melg8@gmail.com>

commit 5468eb659c8b4ecdb3d08e8b8f0442c5a2549a48
Author: Gabriel Arjones <arjones@arjones.com>
Date:   Thu Apr 14 17:55:27 2022 -0300

    cmake: write an arch independent version file (#534)
2022-04-21 12:11:26 +02:00

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/******************************************************************************
The MIT License(MIT)
Embedded Template Library.
https://github.com/ETLCPP/etl
https://www.etlcpp.com
Copyright(c) 2021 jwellbelove
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files(the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions :
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
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 AND NONINFRINGEMENT.IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
******************************************************************************/
#include "unit_test_framework.h"
#include "etl/private/variant_variadic.h"
#include "etl/visitor.h"
#include "etl/overload.h"
#include <array>
#include <vector>
#include <algorithm>
#include <string>
#include <variant>
#include <type_traits>
namespace
{
// Test variant_etl types.
using test_variant_etl_3 = etl::variant<char, int, std::string>;
using test_variant_std_3 = std::variant<char, int, std::string>;
struct D1
{
D1(const std::string& a_)
: a(a_)
{
copied = false;
moved = false;
}
D1(const D1& other)
: a(other.a)
{
copied = true;
moved = false;
}
D1(D1&& other)
: a(std::move(other.a))
{
copied = false;
moved = true;
}
std::string a;
bool copied;
bool moved;
};
struct D2
{
D2(const std::string& a_, const std::string& b_)
: a(a_),
b(b_)
{
}
std::string a;
std::string b;
};
struct D3
{
D3(const std::string& a_, const std::string& b_, const std::string& c_)
: a(a_),
b(b_),
c(c_)
{
}
std::string a;
std::string b;
std::string c;
};
struct D4
{
D4(const std::string& a_, const std::string& b_, const std::string& c_, const std::string& d_)
: a(a_),
b(b_),
c(c_),
d(d_)
{
}
std::string a;
std::string b;
std::string c;
std::string d;
};
bool operator == (const D1& lhs, const D1& rhs)
{
return (lhs.a == rhs.a);
}
bool operator == (const D2& lhs, const D2& rhs)
{
return (lhs.a == rhs.a) && (lhs.b == rhs.b);
}
bool operator == (const D3& lhs, const D3& rhs)
{
return (lhs.a == rhs.a) && (lhs.b == rhs.b) && (lhs.c == rhs.c);
}
bool operator == (const D4& lhs, const D4& rhs)
{
return (lhs.a == rhs.a) && (lhs.b == rhs.b) && (lhs.c == rhs.c) && (lhs.d == rhs.d);
}
std::ostream& operator <<(std::ostream& os, const D1& d1)
{
os << d1.a;
return os;
}
std::ostream& operator <<(std::ostream& os, const D2& d2)
{
os << d2.a << " " << d2.b;
return os;
}
std::ostream& operator <<(std::ostream& os, const D3& d3)
{
os << d3.a << " " << d3.b << " " << d3.c;
return os;
}
std::ostream& operator <<(std::ostream& os, const D4& d4)
{
os << d4.a << " " << d4.b << " " << d4.c << " " << d4.d;
return os;
}
typedef etl::variant<etl::monostate, D1, D2, D3, D4> test_variant_emplace;
//*********************************************
struct Copyable
{
Copyable()
: moved_from(false)
, moved_to(false)
, copied_to(false)
{
}
Copyable(const Copyable&) noexcept
{
moved_from = false;
moved_to = false;
copied_to = true;
}
Copyable& operator =(const Copyable&) noexcept
{
moved_from = false;
moved_to = false;
copied_to = true;
return *this;
}
bool moved_from;
bool moved_to;
bool copied_to;
};
//*********************************************
struct Moveable
{
Moveable()
: moved_from(false)
, moved_to(false)
, copied_to(false)
{
}
Moveable(Moveable&& other) noexcept
{
moved_from = false;
moved_to = true;
copied_to = false;
other.moved_from = true;
other.moved_to = false;
other.copied_to = false;
}
Moveable& operator =(Moveable&& rhs) noexcept
{
moved_from = false;
moved_to = true;
copied_to = false;
rhs.moved_from = true;
rhs.moved_to = false;
rhs.copied_to = false;
return *this;
}
Moveable(const Moveable& other) = delete;
Moveable& operator =(const Moveable& rhs) = delete;
bool moved_from;
bool moved_to;
bool copied_to;
};
//*********************************************
struct MoveableCopyable
{
MoveableCopyable()
: moved_from(false)
, moved_to(false)
, copied_to(false)
{
}
MoveableCopyable(MoveableCopyable&& other) noexcept
{
moved_from = false;
moved_to = true;
copied_to = false;
other.moved_from = true;
other.moved_to = false;
other.copied_to = false;
}
MoveableCopyable& operator =(MoveableCopyable&& rhs) noexcept
{
moved_from = false;
moved_to = true;
copied_to = false;
rhs.moved_from = true;
rhs.moved_to = false;
rhs.copied_to = false;
return *this;
}
MoveableCopyable(const MoveableCopyable&)
{
moved_from = false;
moved_to = false;
copied_to = true;
}
MoveableCopyable& operator =(const MoveableCopyable&)
{
moved_to = false;
moved_from = false;
copied_to = true;
return *this;
}
bool moved_from;
bool moved_to;
bool copied_to;
};
}
// Definitions for when the STL and compiler built-ins are not available.
#if ETL_NOT_USING_STL && !defined(ETL_USE_TYPE_TRAITS_BUILTINS)
using etl::is_copy_constructible;
using etl::is_move_constructible;
//*************************
template <>
struct etl::is_copy_constructible<D1> : public etl::true_type
{
};
template <>
struct etl::is_move_constructible<D1> : public etl::true_type
{
};
//*************************
template <>
struct etl::is_copy_constructible<D2> : public etl::true_type
{
};
template <>
struct etl::is_move_constructible<D2> : public etl::true_type
{
};
//*************************
template <>
struct etl::is_copy_constructible<D3> : public etl::true_type
{
};
template <>
struct etl::is_move_constructible<D3> : public etl::true_type
{
};
//*************************
template <>
struct etl::is_copy_constructible<D4> : public etl::true_type
{
};
template <>
struct etl::is_move_constructible<D4> : public etl::true_type
{
};
//*************************
template <>
struct etl::is_copy_constructible<std::string> : public etl::true_type
{
};
template <>
struct etl::is_move_constructible<std::string> : public etl::true_type
{
};
//*************************
template <>
struct etl::is_copy_constructible<Copyable> : public etl::true_type
{
};
template <>
struct etl::is_move_constructible<Copyable> : public etl::false_type
{
};
//*************************
template <>
struct etl::is_copy_constructible<Moveable> : public etl::false_type
{
};
template <>
struct etl::is_move_constructible<Moveable> : public etl::true_type
{
};
//*************************
template <>
struct etl::is_copy_constructible<MoveableCopyable> : public etl::true_type
{
};
template <>
struct etl::is_move_constructible<MoveableCopyable> : public etl::true_type
{
};
#endif
namespace
{
SUITE(test_variant)
{
TEST(test_alignment)
{
typedef etl::variant<char, unsigned char> test_variant_a;
typedef etl::variant<char, short> test_variant_b;
typedef etl::variant<char, int> test_variant_c;
typedef etl::variant<char, double> test_variant_d;
static test_variant_a a(char('1'));
static test_variant_b b(short(2));
static test_variant_c c(3);
static test_variant_d d(4.5);
CHECK((uintptr_t(&etl::get<char>(a)) % uintptr_t(etl::alignment_of<char>::value)) == 0);
CHECK((uintptr_t(&etl::get<short>(b)) % uintptr_t(etl::alignment_of<short>::value)) == 0);
CHECK((uintptr_t(&etl::get<int>(c)) % uintptr_t(etl::alignment_of<int>::value)) == 0);
CHECK((uintptr_t(&etl::get<double>(d)) % uintptr_t(etl::alignment_of<double>::value)) == 0);
}
//*************************************************************************
TEST(test_constructor_default)
{
CHECK_NO_THROW(test_variant_etl_3 variant_etl);
test_variant_etl_3 variant_etl;
CHECK(etl::holds_alternative<char>(variant_etl));
CHECK(!etl::holds_alternative<int>(variant_etl));
CHECK(!etl::holds_alternative<std::string>(variant_etl));
CHECK(etl::holds_alternative<0U>(variant_etl));
CHECK(!etl::holds_alternative<1U>(variant_etl));
CHECK(!etl::holds_alternative<2U>(variant_etl));
CHECK(etl::holds_alternative(0U, variant_etl));
CHECK(!etl::holds_alternative(1U, variant_etl));
CHECK(!etl::holds_alternative(2U, variant_etl));
CHECK(!etl::holds_alternative(99U, variant_etl));
}
//*************************************************************************
TEST(test_constructor_value)
{
// Char.
char c = 'a';
test_variant_etl_3 variant_char_etl(c);
CHECK(c == 'a');
CHECK(etl::holds_alternative<char>(variant_char_etl));
CHECK_EQUAL(c, etl::get<char>(variant_char_etl));
// Int.
int i = 1;
test_variant_etl_3 variant_int_etl(i);
CHECK(i == 1);
CHECK(etl::holds_alternative<int>(variant_int_etl));
CHECK_EQUAL(i, etl::get<int>(variant_int_etl));
// String.
std::string text("Some Text");
test_variant_etl_3 variant_text_etl(text);
CHECK(text == "Some Text");
CHECK(etl::holds_alternative<std::string>(variant_text_etl));
CHECK_EQUAL(text, etl::get<std::string>(variant_text_etl));
}
//*************************************************************************
TEST(test_constructor_move_value)
{
// Char.
char c = 'a';
test_variant_etl_3 variant_char_etl(etl::move(c));
CHECK(etl::holds_alternative<char>(variant_char_etl));
CHECK_EQUAL(c, etl::get<char>(variant_char_etl));
// Int.
int i = 1;
test_variant_etl_3 variant_int_etl(etl::move(i));
CHECK(etl::holds_alternative<int>(variant_int_etl));
CHECK_EQUAL(i, etl::get<int>(variant_int_etl));
// String.
std::string text("Some Text");
test_variant_etl_3 variant_text_etl(etl::move(text));
CHECK(etl::holds_alternative<std::string>(variant_text_etl));
CHECK_EQUAL(std::string("Some Text"), etl::get<std::string>(variant_text_etl));
}
//*************************************************************************
TEST(test_construct_multiple_parameters_by_type)
{
test_variant_emplace variant_etl1(etl::in_place_type<D1>, "1");
CHECK(etl::holds_alternative<D1>(variant_etl1));
CHECK_EQUAL(D1("1"), etl::get<D1>(variant_etl1));
test_variant_emplace variant_etl2(etl::in_place_type<D2>, "1", "2");
CHECK(etl::holds_alternative<D2>(variant_etl2));
CHECK_EQUAL(D2("1", "2"), etl::get<D2>(variant_etl2));
test_variant_emplace variant_etl3(etl::in_place_type<D3>, "1", "2", "3");
CHECK(etl::holds_alternative<D3>(variant_etl3));
CHECK_EQUAL(D3("1", "2", "3"), etl::get<D3>(variant_etl3));
test_variant_emplace variant_etl4(etl::in_place_type<D4>, "1", "2", "3", "4");
CHECK(etl::holds_alternative<D4>(variant_etl4));
CHECK_EQUAL(D4("1", "2", "3", "4"), etl::get<D4>(variant_etl4));
}
//*************************************************************************
TEST(test_construct_multiple_parameters_by_index)
{
test_variant_emplace variant_etl1(etl::in_place_index<1U>, "1");
CHECK(etl::holds_alternative<D1>(variant_etl1));
CHECK_EQUAL(D1("1"), etl::get<D1>(variant_etl1));
test_variant_emplace variant_etl2(etl::in_place_index<2>, "1", "2");
CHECK(etl::holds_alternative<D2>(variant_etl2));
CHECK_EQUAL(D2("1", "2"), etl::get<D2>(variant_etl2));
test_variant_emplace variant_etl3(etl::in_place_index<3>, "1", "2", "3");
CHECK(etl::holds_alternative<D3>(variant_etl3));
CHECK_EQUAL(D3("1", "2", "3"), etl::get<D3>(variant_etl3));
test_variant_emplace variant_etl4(etl::in_place_index<4U>, "1", "2", "3", "4");
CHECK(etl::holds_alternative<D4>(variant_etl4));
CHECK_EQUAL(D4("1", "2", "3", "4"), etl::get<D4>(variant_etl4));
}
#if ETL_USING_STL
//*************************************************************************
TEST(test_construct_with_initializer_list_by_type)
{
etl::variant<std::vector<int>, std::string> v(etl::in_place_type_t<std::vector<int>>{}, { 0, 1, 2, 3 });
std::vector<int> expected = { 0, 1, 2, 3 };
std::vector<int> result = etl::get<std::vector<int>>(v);
CHECK_EQUAL(expected.size(), result.size());
CHECK_ARRAY_EQUAL(expected.data(), result.data(), expected.size());
}
//*************************************************************************
TEST(test_construct_with_initializer_list_by_index)
{
etl::variant<std::vector<int>, std::string> v(etl::in_place_index_t<0U>{}, { 0, 1, 2, 3 });
std::vector<int> expected = { 0, 1, 2, 3 };
std::vector<int> result = etl::get<std::vector<int>>(v);
CHECK_EQUAL(expected.size(), result.size());
CHECK_ARRAY_EQUAL(expected.data(), result.data(), expected.size());
}
#endif
//*************************************************************************
TEST(test_emplace_value)
{
// Char.
char c = 'a';
test_variant_etl_3 variant_char_etl;
variant_char_etl.emplace<char>(c);
CHECK(c == 'a');
CHECK(etl::holds_alternative<char>(variant_char_etl));
CHECK_EQUAL(c, etl::get<char>(variant_char_etl));
// Int.
int i = 1;
test_variant_etl_3 variant_int_etl;
variant_int_etl.emplace<int>(i);
CHECK(i == 1);
CHECK(etl::holds_alternative<int>(variant_int_etl));
CHECK_EQUAL(i, etl::get<int>(variant_int_etl));
// String.
std::string text("Some Text");
test_variant_etl_3 variant_text_etl;
variant_text_etl.emplace<std::string>(text);
CHECK(text == "Some Text");
CHECK(etl::holds_alternative<std::string>(variant_text_etl));
CHECK_EQUAL(text, etl::get<std::string>(variant_text_etl));
}
//*************************************************************************
TEST(test_copy_constructor)
{
std::string text("Some Text");
test_variant_etl_3 variant_1_etl(text);
test_variant_etl_3 variant_2_etl(variant_1_etl);
CHECK_EQUAL(variant_1_etl.index(), variant_2_etl.index());
CHECK_EQUAL(etl::get<std::string>(variant_1_etl), etl::get<std::string>(variant_2_etl));
}
//*************************************************************************
TEST(test_copy_constructor_from_empty)
{
test_variant_etl_3 variant_1_etl;
test_variant_etl_3 variant_2_etl(variant_1_etl);
CHECK_EQUAL(variant_1_etl.index(), variant_2_etl.index());
}
//*************************************************************************
TEST(test_move_constructor)
{
std::string text("Some Text");
test_variant_etl_3 variant_1_etl(text);
test_variant_etl_3 variant_2_etl(etl::move(variant_1_etl));
CHECK_EQUAL(variant_1_etl.index(), variant_2_etl.index());
CHECK(etl::get<std::string>(variant_1_etl) != etl::get<std::string>(variant_2_etl));
}
//*************************************************************************
TEST(test_move_constructor_from_empty)
{
std::string text("Some Text");
test_variant_etl_3 variant_1_etl;
test_variant_etl_3 variant_2_etl(etl::move(variant_1_etl));
CHECK_EQUAL(variant_1_etl.index(), variant_2_etl.index());
}
//*************************************************************************
TEST(test_assign_from_value)
{
std::string text("Some Text");
test_variant_etl_3 variant_etl;
variant_etl = text;
CHECK_EQUAL(text, etl::get<std::string>(variant_etl));
}
//*************************************************************************
TEST(test_assign_from_variant)
{
std::string text("Some Text");
test_variant_etl_3 variant_1_etl;
test_variant_etl_3 variant_2_etl;
variant_1_etl = text;
variant_2_etl = variant_1_etl;
CHECK_EQUAL(text, etl::get<std::string>(variant_2_etl));
}
//*************************************************************************
TEST(test_assign_from_variant2)
{
std::string text("Some Text");
int integer(99);
test_variant_etl_3 variant_1_etl;
test_variant_etl_3 variant_2_etl;
variant_1_etl = text;
variant_2_etl = integer;
variant_2_etl = variant_1_etl;
CHECK_EQUAL(text, etl::get<std::string>(variant_2_etl));
}
//*************************************************************************
TEST(test_assignment_incorrect_type_exception)
{
std::string text("Some Text");
test_variant_etl_3 variant_etl(text);
int i;
CHECK_THROW(etl::get<int>(variant_etl), etl::variant_incorrect_type_exception);
(void)i;
}
//*************************************************************************
TEST(test_self_assignment)
{
test_variant_etl_3 variant_etl;
variant_etl = 1;
variant_etl = variant_etl;
CHECK_EQUAL(1, etl::get<int>(variant_etl));
}
//*************************************************************************
TEST(test_member_swap_variants)
{
std::string text("Some Text");
int integer(99);
test_variant_etl_3 variant_1_etl(text);
test_variant_etl_3 variant_2_etl(integer);
variant_1_etl.swap(variant_2_etl);
CHECK(etl::holds_alternative<int>(variant_1_etl));
CHECK_EQUAL(integer, etl::get<int>(variant_1_etl));
CHECK(etl::holds_alternative<std::string>(variant_2_etl));
CHECK_EQUAL(text, etl::get<std::string>(variant_2_etl));
}
//*************************************************************************
TEST(test_global_swap_variants)
{
std::string text("Some Text");
int integer(99);
test_variant_etl_3 variant_1_etl(text);
test_variant_etl_3 variant_2_etl(integer);
etl::swap(variant_1_etl, variant_2_etl);
CHECK(etl::holds_alternative<int>(variant_1_etl));
CHECK_EQUAL(integer, etl::get<int>(variant_1_etl));
CHECK(etl::holds_alternative<std::string>(variant_2_etl));
CHECK_EQUAL(text, etl::get<std::string>(variant_2_etl));
}
//*************************************************************************
TEST(test_emplace_multiple_parameters)
{
test_variant_emplace variant_etl;
variant_etl.emplace<D1>("1");
CHECK(etl::holds_alternative<D1>(variant_etl));
CHECK_EQUAL(D1("1"), etl::get<D1>(variant_etl));
variant_etl.emplace<D2>("1", "2");
CHECK(etl::holds_alternative<D2>(variant_etl));
CHECK_EQUAL(D2("1", "2"), etl::get<D2>(variant_etl));
variant_etl.emplace<D3>("1", "2", "3");
CHECK(etl::holds_alternative<D3>(variant_etl));
CHECK_EQUAL(D3("1", "2", "3"), etl::get<D3>(variant_etl));
variant_etl.emplace<D4>("1", "2", "3", "4");
CHECK(etl::holds_alternative<D4>(variant_etl));
CHECK_EQUAL(D4("1", "2", "3", "4"), etl::get<D4>(variant_etl));
}
//*************************************************************************
TEST(test_variant_accept_visitor)
{
struct Visitor : public etl::visitor<char, int, std::string>
{
Visitor()
: result_c(0)
, result_i(0)
, result_s("")
{
}
void visit(char& c)
{
result_c = c;
}
void visit(int& i)
{
result_i = i;
}
void visit(std::string& s)
{
result_s = s;
}
char result_c;
int result_i;
std::string result_s;
};
Visitor visitor;
test_variant_etl_3 variant_etl;
variant_etl = char(1);
variant_etl.accept_visitor(visitor);
CHECK_EQUAL(1, visitor.result_c);
variant_etl = int(2);
variant_etl.accept_visitor(visitor);
CHECK_EQUAL(2, visitor.result_i);
variant_etl = std::string("3");
variant_etl.accept_visitor(visitor);
CHECK_EQUAL("3", visitor.result_s);
}
//*************************************************************************
TEST(test_variant_accept_functor_with_functor_class)
{
struct Visitor
{
Visitor()
: result_c(0)
, result_i(0)
, result_s("")
{
}
void operator()(char& c)
{
result_c = c;
}
void operator()(int& i)
{
result_i = i;
}
void operator()(const std::string& s)
{
result_s = s;
}
char result_c;
int result_i;
std::string result_s;
};
Visitor visitor;
test_variant_etl_3 variant_etl;
variant_etl = char(1);
variant_etl.accept_functor(visitor);
CHECK_EQUAL(1, visitor.result_c);
variant_etl = int(2);
variant_etl.accept_functor(visitor);
CHECK_EQUAL(2, visitor.result_i);
variant_etl = std::string("3");
variant_etl.accept_functor(visitor);
CHECK_EQUAL("3", visitor.result_s);
}
//*************************************************************************
TEST(test_variant__accept_functor_with_overload)
{
char result_c;
int result_i;
std::string result_s;
auto visitor = etl::make_overload([&result_c](char) { result_c = 1; },
[&result_i](int) { result_i = 2; },
[&result_s](const std::string&) { result_s = "3"; });
test_variant_etl_3 variant_etl;
variant_etl = char(1);
variant_etl.accept_functor(visitor);
CHECK_EQUAL(1, result_c);
variant_etl = int(2);
variant_etl.accept_functor(visitor);
CHECK_EQUAL(2, result_i);
variant_etl = std::string("3");
variant_etl.accept_functor(visitor);
CHECK_EQUAL("3", result_s);
}
//*************************************************************************
TEST(test_get_if_index)
{
test_variant_etl_3 variant_etl;
variant_etl = char(1);
CHECK(etl::get_if<0>(&variant_etl) != nullptr);
CHECK(etl::get_if<1>(&variant_etl) == nullptr);
CHECK(etl::get_if<2>(&variant_etl) == nullptr);
variant_etl = int(2);
CHECK(etl::get_if<0>(&variant_etl) == nullptr);
CHECK(etl::get_if<1>(&variant_etl) != nullptr);
CHECK(etl::get_if<2>(&variant_etl) == nullptr);
variant_etl = std::string("3");
CHECK(etl::get_if<0>(&variant_etl) == nullptr);
CHECK(etl::get_if<1>(&variant_etl) == nullptr);
CHECK(etl::get_if<2>(&variant_etl) != nullptr);
}
//*************************************************************************
TEST(test_get_if_type)
{
test_variant_etl_3 variant_etl;
variant_etl = char(1);
CHECK(etl::get_if<char>(&variant_etl) != nullptr);
CHECK(etl::get_if<int>(&variant_etl) == nullptr);
CHECK(etl::get_if<std::string>(&variant_etl) == nullptr);
variant_etl = int(2);
CHECK(etl::get_if<char>(&variant_etl) == nullptr);
CHECK(etl::get_if<int>(&variant_etl) != nullptr);
CHECK(etl::get_if<std::string>(&variant_etl) == nullptr);
variant_etl = std::string("3");
CHECK(etl::get_if<char>(&variant_etl) == nullptr);
CHECK(etl::get_if<int>(&variant_etl) == nullptr);
CHECK(etl::get_if<std::string>(&variant_etl) != nullptr);
}
//*************************************************************************
TEST(test_variant_size)
{
test_variant_etl_3 variant_etl;
CHECK_EQUAL(3U, etl::variant_size_v<test_variant_etl_3>);
}
//*************************************************************************
TEST(test_compare_etl_and_stl_variant_with_moveable_type)
{
Moveable from_etl;
Moveable to_etl;
Moveable from_std;
Moveable to_std;
etl::variant<Moveable> variant_etl(etl::move(from_etl));
std::variant<Moveable> variant_std(etl::move(from_std));
variant_etl = etl::move(from_etl);
variant_std = etl::move(from_std);
CHECK_EQUAL(from_std.moved_from, from_etl.moved_from);
CHECK_EQUAL(from_std.moved_to, from_etl.moved_to);
CHECK_EQUAL(from_std.copied_to, from_etl.copied_to);
to_etl = etl::move(etl::get<0>(variant_etl));
to_std = etl::move(std::get<0>(variant_std));
CHECK_EQUAL(to_std.moved_from, to_etl.moved_from);
CHECK_EQUAL(to_std.moved_to, to_etl.moved_to);
CHECK_EQUAL(to_std.copied_to, to_etl.copied_to);
}
//*************************************************************************
TEST(test_compare_etl_and_stl_variant_with_copyable_type)
{
Copyable from_etl;
Copyable to_etl;
Copyable from_std;
Copyable to_std;
etl::variant<Copyable> variant_etl;
std::variant<Copyable> variant_std;
variant_etl = from_etl;
variant_std = from_std;
CHECK_EQUAL(from_std.moved_from, from_etl.moved_from);
CHECK_EQUAL(from_std.moved_to, from_etl.moved_to);
CHECK_EQUAL(from_std.copied_to, from_etl.copied_to);
to_etl = etl::get<0>(variant_etl);
to_std = std::get<0>(variant_std);
CHECK_EQUAL(to_std.moved_from, to_etl.moved_from);
CHECK_EQUAL(to_std.moved_to, to_etl.moved_to);
CHECK_EQUAL(to_std.copied_to, to_etl.copied_to);
}
//*************************************************************************
TEST(test_compare_etl_and_stl_variant_with_moveable_copyable_type)
{
MoveableCopyable from_etl;
MoveableCopyable to_etl;
MoveableCopyable from_std;
MoveableCopyable to_std;
etl::variant<MoveableCopyable> variant_etl;
std::variant<MoveableCopyable> variant_std;
variant_etl = from_etl;
variant_std = from_std;
CHECK_EQUAL(from_std.moved_from, from_etl.moved_from);
CHECK_EQUAL(from_std.moved_to, from_etl.moved_to);
CHECK_EQUAL(from_std.copied_to, from_etl.copied_to);
variant_etl = etl::move(from_etl);
variant_std = etl::move(from_std);
CHECK_EQUAL(from_std.moved_from, from_etl.moved_from);
CHECK_EQUAL(from_std.moved_to, from_etl.moved_to);
CHECK_EQUAL(from_std.copied_to, from_etl.copied_to);
to_etl = etl::get<0>(variant_etl);
to_std = std::get<0>(variant_std);
CHECK_EQUAL(to_std.moved_from, to_etl.moved_from);
CHECK_EQUAL(to_std.moved_to, to_etl.moved_to);
CHECK_EQUAL(to_std.copied_to, to_etl.copied_to);
to_etl = etl::move(etl::get<0>(variant_etl));
to_std = etl::move(std::get<0>(variant_std));
CHECK_EQUAL(to_std.moved_from, to_etl.moved_from);
CHECK_EQUAL(to_std.moved_to, to_etl.moved_to);
CHECK_EQUAL(to_std.copied_to, to_etl.copied_to);
}
//*************************************************************************
TEST(test_get_by_type)
{
MoveableCopyable value1;
MoveableCopyable value2;
MoveableCopyable value3;
etl::variant<MoveableCopyable> v_etl(value1);
const etl::variant<MoveableCopyable> cv_etl(value2);
etl::variant<MoveableCopyable>& rv_etl(v_etl);
const etl::variant<MoveableCopyable>& crv_etl(value3);
std::variant<MoveableCopyable> v_std(value1);
const std::variant<MoveableCopyable> cv_std(value2);
std::variant<MoveableCopyable>& rv_std(v_std);
const std::variant<MoveableCopyable>& crv_std(value3);
// From variant reference
MoveableCopyable value_vr_etl = etl::get<MoveableCopyable>(rv_etl);
MoveableCopyable value_vr_std = std::get<MoveableCopyable>(rv_std);
CHECK_EQUAL(value_vr_std.moved_from, value_vr_etl.moved_from);
CHECK_EQUAL(value_vr_std.moved_to, value_vr_etl.moved_to);
CHECK_EQUAL(value_vr_std.copied_to, value_vr_etl.copied_to);
// From variant const reference
const MoveableCopyable& value_vcr_etl = etl::get<MoveableCopyable>(crv_etl);
const MoveableCopyable& value_vcr_std = std::get<MoveableCopyable>(crv_std);
CHECK_EQUAL(value_vcr_std.moved_from, value_vcr_etl.moved_from);
CHECK_EQUAL(value_vcr_std.moved_to, value_vcr_etl.moved_to);
CHECK_EQUAL(value_vcr_std.copied_to, value_vcr_etl.copied_to);
// From variant rvalue reference
MoveableCopyable&& value_vrr_etl = etl::get<MoveableCopyable>(etl::move(v_etl));
MoveableCopyable&& value_vrr_std = std::get<MoveableCopyable>(etl::move(v_std));
CHECK_EQUAL(value_vrr_std.moved_from, value_vrr_etl.moved_from);
CHECK_EQUAL(value_vrr_std.moved_to, value_vrr_etl.moved_to);
CHECK_EQUAL(value_vrr_std.copied_to, value_vrr_etl.copied_to);
// From variant const rvalue reference
const MoveableCopyable&& value_vcrr_etl = etl::get<MoveableCopyable>(etl::move(cv_etl));
const MoveableCopyable&& value_vcrr_std = std::get<MoveableCopyable>(etl::move(cv_std));
CHECK_EQUAL(value_vcrr_std.moved_from, value_vcrr_etl.moved_from);
CHECK_EQUAL(value_vcrr_std.moved_to, value_vcrr_etl.moved_to);
CHECK_EQUAL(value_vcrr_std.copied_to, value_vcrr_etl.copied_to);
}
//*************************************************************************
TEST(test_get_by_index)
{
MoveableCopyable value1;
MoveableCopyable value2;
MoveableCopyable value3;
etl::variant<MoveableCopyable> v_etl(value1);
const etl::variant<MoveableCopyable> cv_etl(value2);
etl::variant<MoveableCopyable>& rv_etl(v_etl);
const etl::variant<MoveableCopyable>& crv_etl(value3);
std::variant<MoveableCopyable> v_std(value1);
const std::variant<MoveableCopyable> cv_std(value2);
std::variant<MoveableCopyable>& rv_std(v_std);
const std::variant<MoveableCopyable>& crv_std(value3);
// From variant reference
MoveableCopyable value_vr_etl = etl::get<0U>(rv_etl);
MoveableCopyable value_vr_std = std::get<0U>(rv_std);
CHECK_EQUAL(value_vr_std.moved_from, value_vr_etl.moved_from);
CHECK_EQUAL(value_vr_std.moved_to, value_vr_etl.moved_to);
CHECK_EQUAL(value_vr_std.copied_to, value_vr_etl.copied_to);
// From variant const reference
const MoveableCopyable& value_vcr_etl = etl::get<0U>(crv_etl);
const MoveableCopyable& value_vcr_std = std::get<0U>(crv_std);
CHECK_EQUAL(value_vcr_std.moved_from, value_vcr_etl.moved_from);
CHECK_EQUAL(value_vcr_std.moved_to, value_vcr_etl.moved_to);
CHECK_EQUAL(value_vcr_std.copied_to, value_vcr_etl.copied_to);
// From variant rvalue reference
MoveableCopyable&& value_vrr_etl = etl::get<0U>(etl::move(v_etl));
MoveableCopyable&& value_vrr_std = std::get<0U>(etl::move(v_std));
CHECK_EQUAL(value_vrr_std.moved_from, value_vrr_etl.moved_from);
CHECK_EQUAL(value_vrr_std.moved_to, value_vrr_etl.moved_to);
CHECK_EQUAL(value_vrr_std.copied_to, value_vrr_etl.copied_to);
// From variant const rvalue reference
const MoveableCopyable&& value_vcrr_etl = etl::get<0U>(etl::move(cv_etl));
const MoveableCopyable&& value_vcrr_std = std::get<0U>(etl::move(cv_std));
CHECK_EQUAL(value_vcrr_std.moved_from, value_vcrr_etl.moved_from);
CHECK_EQUAL(value_vcrr_std.moved_to, value_vcrr_etl.moved_to);
CHECK_EQUAL(value_vcrr_std.copied_to, value_vcrr_etl.copied_to);
}
//*************************************************************************
TEST(test_get_if_by_type)
{
int value;
etl::variant<int, double> v(value);
const etl::variant<int, double> cv(value);
etl::variant<int, double>& rv(v);
const etl::variant<int, double>& crv(v);
int* pi;
const int* pci;
double* pd;
const double* pcd;
etl::variant<int, double>* pv = nullptr;
// From nullptr
pi = etl::get_if<int>(pv);
CHECK(pi == nullptr);
// From variant reference
pi = etl::get_if<int>(&rv);
CHECK(pi != nullptr);
pd = etl::get_if<double>(&rv);
CHECK(pd == nullptr);
// From variant const reference
pci = etl::get_if<int>(&crv);
CHECK(pci != nullptr);
pcd = etl::get_if<double>(&crv);
CHECK(pcd == nullptr);
}
//*************************************************************************
TEST(test_get_if_by_index)
{
int value;
etl::variant<int, double> v(value);
const etl::variant<int, double> cv(value);
etl::variant<int, double>& rv(v);
const etl::variant<int, double>& crv(v);
int* pi;
const int* pci;
double* pd;
const double* pcd;
etl::variant<int, double>* pv = nullptr;
// From nullptr
pi = etl::get_if<0U>(pv);
CHECK(pi == nullptr);
// From variant reference
pi = etl::get_if<0U>(&rv);
CHECK(pi != nullptr);
pd = etl::get_if<1U>(&rv);
CHECK(pd == nullptr);
// From variant const reference
pci = etl::get_if<0U>(&crv);
CHECK(pci != nullptr);
pcd = etl::get_if<1U>(&crv);
CHECK(pcd == nullptr);
}
};
}
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