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stl_interfaces/test/static_vec.cpp
Zach Laine cc224edc54 Add move-only value_type tests of static_vector example. 
Fixes #31.
2020-01-03 15:22:20 -06:00

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// Copyright (C) 2019 T. Zachary Laine
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#include "../example/static_vector.hpp"
#include "ill_formed.hpp"
#define BOOST_TEST_MAIN
#include <boost/test/included/unit_test.hpp>
#include <array>
// Instantiate all the members we can.
template struct static_vector<int, 1024>;
using vec_type = static_vector<int, 10>;
BOOST_AUTO_TEST_CASE(default_ctor)
{
vec_type v;
BOOST_CHECK(v.empty());
BOOST_CHECK(v.size() == 0u);
BOOST_CHECK(v.max_size() == 10u);
BOOST_CHECK(v.capacity() == 10u);
BOOST_CHECK(v == v);
BOOST_CHECK(v <= v);
BOOST_CHECK(v >= v);
BOOST_CHECK_THROW(v.at(0), std::out_of_range);
vec_type const & cv = v;
BOOST_CHECK(cv.empty());
BOOST_CHECK(cv.size() == 0u);
BOOST_CHECK(cv.max_size() == 10u);
BOOST_CHECK(cv.capacity() == 10u);
BOOST_CHECK(cv == cv);
BOOST_CHECK(cv <= cv);
BOOST_CHECK(cv >= cv);
BOOST_CHECK_THROW(cv.at(0), std::out_of_range);
}
BOOST_AUTO_TEST_CASE(other_ctors_assign_ctor)
{
{
vec_type v(3);
BOOST_CHECK(!v.empty());
BOOST_CHECK(v.size() == 3u);
vec_type v2(std::initializer_list<int>{0, 0, 0});
BOOST_CHECK(v == v2);
}
{
std::initializer_list<int> il{3, 2, 1};
vec_type v(il);
BOOST_CHECK(!v.empty());
BOOST_CHECK(v.size() == 3u);
static_assert(std::is_same<decltype(v = il), vec_type &>::value, "");
vec_type v2;
v2 = il;
BOOST_CHECK(v == v2);
}
{
std::initializer_list<int> il{3, 2, 1};
vec_type v;
v.assign(il);
BOOST_CHECK(!v.empty());
BOOST_CHECK(v.size() == 3u);
static_assert(std::is_same<decltype(v.assign(il)), void>::value, "");
vec_type v2;
v2 = il;
BOOST_CHECK(v == v2);
}
{
vec_type v(3, 4);
BOOST_CHECK(!v.empty());
BOOST_CHECK(v.size() == 3u);
vec_type v2 = {4, 4, 4};
BOOST_CHECK(v == v2);
}
{
vec_type v;
v.assign(3, 4);
BOOST_CHECK(!v.empty());
BOOST_CHECK(v.size() == 3u);
static_assert(std::is_same<decltype(v.assign(3, 4)), void>::value, "");
vec_type v2 = {4, 4, 4};
BOOST_CHECK(v == v2);
}
{
std::array<int, 3> a = {{1, 2, 3}};
vec_type v(a.begin(), a.end());
BOOST_CHECK(!v.empty());
BOOST_CHECK(v.size() == 3u);
vec_type v2 = {1, 2, 3};
BOOST_CHECK(v == v2);
}
{
std::array<int, 3> a = {{1, 2, 3}};
vec_type v;
v.assign(a.begin(), a.end());
BOOST_CHECK(!v.empty());
BOOST_CHECK(v.size() == 3u);
static_assert(
std::is_same<decltype(v.assign(a.begin(), a.end())), void>::value,
"");
vec_type v2 = {1, 2, 3};
BOOST_CHECK(v == v2);
}
}
BOOST_AUTO_TEST_CASE(resize)
{
{
vec_type v;
static_assert(std::is_same<decltype(v.resize(1)), void>::value, "");
v.resize(3);
BOOST_CHECK(v == vec_type(3));
v.resize(6);
BOOST_CHECK(v == vec_type(6));
}
{
vec_type v(6);
v.resize(3);
BOOST_CHECK(v == vec_type(3));
v.resize(0);
BOOST_CHECK(v == vec_type{});
}
}
BOOST_AUTO_TEST_CASE(assignment_copy_move_equality)
{
{
vec_type v2 = {4, 4, 4};
vec_type v(v2);
BOOST_CHECK(v == v2);
}
{
vec_type v;
vec_type v2 = {4, 4, 4};
static_assert(std::is_same<decltype(v = v2), vec_type &>::value, "");
static_assert(
std::is_same<decltype(v = std::move(v2)), vec_type &>::value, "");
v = v2;
BOOST_CHECK(v == v2);
}
{
vec_type v2 = {4, 4, 4};
vec_type v(std::move(v2));
BOOST_CHECK(v == (vec_type(3, 4)));
BOOST_CHECK(v2.empty());
}
{
vec_type v;
vec_type v2 = {4, 4, 4};
v = std::move(v2);
BOOST_CHECK(v == (vec_type(3, 4)));
BOOST_CHECK(v2.empty());
}
}
BOOST_AUTO_TEST_CASE(comparisons)
{
vec_type sm = {1, 2, 3};
vec_type md = {1, 2, 3, 4};
vec_type lg = {1, 2, 3, 4, 5};
BOOST_CHECK(sm == sm);
BOOST_CHECK(!(sm == md));
BOOST_CHECK(!(sm == lg));
BOOST_CHECK(!(sm != sm));
BOOST_CHECK(sm != md);
BOOST_CHECK(sm != lg);
BOOST_CHECK(!(sm < sm));
BOOST_CHECK(sm < md);
BOOST_CHECK(sm < lg);
BOOST_CHECK(sm <= sm);
BOOST_CHECK(sm <= md);
BOOST_CHECK(sm <= lg);
BOOST_CHECK(!(sm > sm));
BOOST_CHECK(!(sm > md));
BOOST_CHECK(!(sm > lg));
BOOST_CHECK(sm >= sm);
BOOST_CHECK(!(sm >= md));
BOOST_CHECK(!(sm >= lg));
BOOST_CHECK(!(md == sm));
BOOST_CHECK(md == md);
BOOST_CHECK(!(md == lg));
BOOST_CHECK(!(md < sm));
BOOST_CHECK(!(md < md));
BOOST_CHECK(md < lg);
BOOST_CHECK(!(md <= sm));
BOOST_CHECK(md <= md);
BOOST_CHECK(md <= lg);
BOOST_CHECK(md > sm);
BOOST_CHECK(!(md > md));
BOOST_CHECK(!(md > lg));
BOOST_CHECK(md >= sm);
BOOST_CHECK(md >= md);
BOOST_CHECK(!(md >= lg));
BOOST_CHECK(!(lg == sm));
BOOST_CHECK(!(lg == md));
BOOST_CHECK(lg == lg);
BOOST_CHECK(!(lg < sm));
BOOST_CHECK(!(lg < md));
BOOST_CHECK(!(lg < lg));
BOOST_CHECK(!(lg <= sm));
BOOST_CHECK(!(lg <= md));
BOOST_CHECK(lg <= lg);
BOOST_CHECK(lg > sm);
BOOST_CHECK(lg > md);
BOOST_CHECK(!(lg > lg));
BOOST_CHECK(lg >= sm);
BOOST_CHECK(lg >= md);
BOOST_CHECK(lg >= lg);
}
BOOST_AUTO_TEST_CASE(swap_)
{
{
vec_type v1(3, 4);
vec_type v2(4, 3);
static_assert(std::is_same<decltype(v1.swap(v2)), void>::value, "");
static_assert(std::is_same<decltype(swap(v1, v2)), void>::value, "");
v1.swap(v2);
BOOST_CHECK(v1.size() == 4u);
BOOST_CHECK(v2.size() == 3u);
BOOST_CHECK(v1 == vec_type(4, 3));
BOOST_CHECK(v2 == vec_type(3, 4));
}
{
vec_type v1(3, 4);
vec_type v2(4, 3);
swap(v1, v2);
BOOST_CHECK(v1.size() == 4u);
BOOST_CHECK(v2.size() == 3u);
BOOST_CHECK(v1 == vec_type(4, 3));
BOOST_CHECK(v2 == vec_type(3, 4));
}
}
template<typename Iter>
using writable_iter_t = decltype(
*std::declval<Iter>() =
std::declval<typename std::iterator_traits<Iter>::value_type>());
static_assert(
ill_formed<
writable_iter_t,
decltype(std::declval<vec_type const &>().begin())>::value,
"");
static_assert(
ill_formed<
writable_iter_t,
decltype(std::declval<vec_type const &>().end())>::value,
"");
static_assert(
ill_formed<writable_iter_t, decltype(std::declval<vec_type &>().cbegin())>::
value,
"");
static_assert(
ill_formed<writable_iter_t, decltype(std::declval<vec_type &>().cend())>::
value,
"");
static_assert(
ill_formed<
writable_iter_t,
decltype(std::declval<vec_type const &>().rbegin())>::value,
"");
static_assert(
ill_formed<
writable_iter_t,
decltype(std::declval<vec_type const &>().rend())>::value,
"");
static_assert(
ill_formed<
writable_iter_t,
decltype(std::declval<vec_type &>().crbegin())>::value,
"");
static_assert(
ill_formed<writable_iter_t, decltype(std::declval<vec_type &>().crend())>::
value,
"");
BOOST_AUTO_TEST_CASE(iterators)
{
{
vec_type v = {3, 2, 1};
static_assert(
std::is_same<decltype(v.begin()), vec_type::iterator>::value, "");
static_assert(
std::is_same<decltype(v.end()), vec_type::iterator>::value, "");
static_assert(
std::is_same<decltype(v.cbegin()), vec_type::const_iterator>::value,
"");
static_assert(
std::is_same<decltype(v.cend()), vec_type::const_iterator>::value,
"");
static_assert(
std::is_same<decltype(v.rbegin()), vec_type::reverse_iterator>::
value,
"");
static_assert(
std::is_same<decltype(v.rbegin()), vec_type::reverse_iterator>::
value,
"");
static_assert(
std::is_same<
decltype(v.crbegin()),
vec_type::const_reverse_iterator>::value,
"");
static_assert(
std::is_same<
decltype(v.crbegin()),
vec_type::const_reverse_iterator>::value,
"");
std::array<int, 3> const a = {{3, 2, 1}};
std::array<int, 3> const ra = {{1, 2, 3}};
BOOST_CHECK(std::equal(v.begin(), v.end(), a.begin(), a.end()));
BOOST_CHECK(std::equal(v.cbegin(), v.cend(), a.begin(), a.end()));
BOOST_CHECK(std::equal(v.rbegin(), v.rend(), ra.begin(), ra.end()));
BOOST_CHECK(std::equal(v.crbegin(), v.crend(), ra.begin(), ra.end()));
*v.begin() = 8;
*v.rbegin() = 9;
BOOST_CHECK(v == vec_type({8, 2, 9}));
}
{
vec_type const v = {3, 2, 1};
static_assert(
std::is_same<decltype(v.begin()), vec_type::const_iterator>::value,
"");
static_assert(
std::is_same<decltype(v.end()), vec_type::const_iterator>::value,
"");
static_assert(
std::is_same<decltype(v.cbegin()), vec_type::const_iterator>::value,
"");
static_assert(
std::is_same<decltype(v.cend()), vec_type::const_iterator>::value,
"");
static_assert(
std::is_same<
decltype(v.rbegin()),
vec_type::const_reverse_iterator>::value,
"");
static_assert(
std::is_same<
decltype(v.rbegin()),
vec_type::const_reverse_iterator>::value,
"");
static_assert(
std::is_same<
decltype(v.crbegin()),
vec_type::const_reverse_iterator>::value,
"");
static_assert(
std::is_same<
decltype(v.crbegin()),
vec_type::const_reverse_iterator>::value,
"");
std::array<int, 3> const a = {{3, 2, 1}};
std::array<int, 3> const ra = {{1, 2, 3}};
BOOST_CHECK(std::equal(v.begin(), v.end(), a.begin(), a.end()));
BOOST_CHECK(std::equal(v.cbegin(), v.cend(), a.begin(), a.end()));
BOOST_CHECK(std::equal(v.rbegin(), v.rend(), ra.begin(), ra.end()));
BOOST_CHECK(std::equal(v.crbegin(), v.crend(), ra.begin(), ra.end()));
}
}
BOOST_AUTO_TEST_CASE(emplace_insert)
{
{
vec_type v;
int const i = 0;
static_assert(
std::is_same<decltype(v.emplace_back(0)), vec_type::reference>::
value,
"");
static_assert(
std::is_same<decltype(v.emplace_back(i)), vec_type::reference>::
value,
"");
v.emplace_back(i);
BOOST_CHECK(v.front() == i);
BOOST_CHECK(v.back() == i);
v.emplace_back(1);
BOOST_CHECK(v.front() == i);
BOOST_CHECK(v.back() == 1);
v.emplace_back(2);
BOOST_CHECK(v.front() == i);
BOOST_CHECK(v.back() == 2);
BOOST_CHECK(v == vec_type({0, 1, 2}));
}
{
vec_type v = {1, 2};
int const i = 0;
static_assert(
std::is_same<
decltype(v.emplace(v.begin(), 0)),
vec_type::iterator>::value,
"");
static_assert(
std::is_same<
decltype(v.emplace(v.begin(), i)),
vec_type::iterator>::value,
"");
v.emplace(v.begin(), i);
BOOST_CHECK(v == vec_type({0, 1, 2}));
v.emplace(v.end(), 3);
BOOST_CHECK(v == vec_type({0, 1, 2, 3}));
v.emplace(v.begin() + 2, 9);
BOOST_CHECK(v == vec_type({0, 1, 9, 2, 3}));
}
{
vec_type v = {1, 2};
std::array<int, 2> a1 = {{0, 0}};
std::array<int, 1> a2 = {{3}};
std::array<int, 3> a3 = {{9, 9, 9}};
static_assert(
std::is_same<
decltype(v.insert(v.begin(), a1.begin(), a1.end())),
vec_type::iterator>::value,
"");
auto const it0 = v.insert(v.begin(), a1.begin(), a1.end());
BOOST_CHECK(v == vec_type({0, 0, 1, 2}));
BOOST_CHECK(it0 == v.begin());
auto const it1 = v.insert(v.end(), a2.begin(), a2.end());
BOOST_CHECK(v == vec_type({0, 0, 1, 2, 3}));
BOOST_CHECK(it1 == v.begin() + 4);
auto const it2 = v.insert(v.begin() + 2, a3.begin(), a3.end());
BOOST_CHECK(v == vec_type({0, 0, 9, 9, 9, 1, 2, 3}));
BOOST_CHECK(it2 == v.begin() + 2);
}
{
vec_type v = {1, 2};
int const i = 0;
static_assert(
std::is_same<decltype(v.insert(v.begin(), 0)), vec_type::iterator>::
value,
"");
static_assert(
std::is_same<decltype(v.insert(v.begin(), i)), vec_type::iterator>::
value,
"");
v.insert(v.begin(), i);
BOOST_CHECK(v == vec_type({0, 1, 2}));
v.insert(v.end(), 3);
BOOST_CHECK(v == vec_type({0, 1, 2, 3}));
v.insert(v.begin() + 2, 9);
BOOST_CHECK(v == vec_type({0, 1, 9, 2, 3}));
}
{
vec_type v = {1, 2};
static_assert(
std::is_same<
decltype(v.insert(v.begin(), 3, 0)),
vec_type::iterator>::value,
"");
v.insert(v.begin(), 2, 0);
BOOST_CHECK(v == vec_type({0, 0, 1, 2}));
v.insert(v.end(), 1, 3);
BOOST_CHECK(v == vec_type({0, 0, 1, 2, 3}));
v.insert(v.begin() + 2, 3, 9);
BOOST_CHECK(v == vec_type({0, 0, 9, 9, 9, 1, 2, 3}));
}
{
vec_type v = {1, 2};
static_assert(
std::is_same<
decltype(v.insert(v.begin(), std::initializer_list<int>{0, 0})),
vec_type::iterator>::value,
"");
v.insert(v.begin(), std::initializer_list<int>{0, 0});
BOOST_CHECK(v == vec_type({0, 0, 1, 2}));
v.insert(v.end(), std::initializer_list<int>{3});
BOOST_CHECK(v == vec_type({0, 0, 1, 2, 3}));
v.insert(v.begin() + 2, std::initializer_list<int>{9, 9, 9});
BOOST_CHECK(v == vec_type({0, 0, 9, 9, 9, 1, 2, 3}));
}
}
BOOST_AUTO_TEST_CASE(erase)
{
{
vec_type v = {3, 2, 1};
static_assert(
std::is_same<
decltype(v.erase(v.begin(), v.end())),
vec_type::iterator>::value,
"");
static_assert(
std::is_same<decltype(v.erase(v.begin())), vec_type::iterator>::
value,
"");
v.erase(v.begin(), v.end());
BOOST_CHECK(v.empty());
BOOST_CHECK(v.size() == 0u);
}
{
vec_type v = {3, 2, 1};
v.erase(v.begin() + 1, v.end());
BOOST_CHECK(!v.empty());
BOOST_CHECK(v.size() == 1u);
BOOST_CHECK(v == vec_type(1, 3));
}
{
vec_type v = {3, 2, 1};
v.erase(v.begin(), v.end() - 1);
BOOST_CHECK(!v.empty());
BOOST_CHECK(v.size() == 1u);
BOOST_CHECK(v == vec_type(1, 1));
}
{
vec_type v = {3, 2, 1};
v.erase(v.begin());
BOOST_CHECK(!v.empty());
BOOST_CHECK(v.size() == 2u);
BOOST_CHECK(v == vec_type({2, 1}));
}
{
vec_type v = {3, 2, 1};
v.erase(v.begin() + 1);
BOOST_CHECK(!v.empty());
BOOST_CHECK(v.size() == 2u);
BOOST_CHECK(v == vec_type({3, 1}));
}
{
vec_type v = {3, 2, 1};
v.erase(v.begin() + 2);
BOOST_CHECK(!v.empty());
BOOST_CHECK(v.size() == 2u);
BOOST_CHECK(v == vec_type({3, 2}));
}
}
template<
typename Container,
typename ValueType = typename Container::value_type>
using lvalue_push_front_t = decltype(
std::declval<Container &>().push_front(std::declval<ValueType const &>()));
template<
typename Container,
typename ValueType = typename Container::value_type>
using rvalue_push_front_t = decltype(std::declval<Container &>().push_front(0));
template<typename Container>
using pop_front_t = decltype(std::declval<Container &>().pop_front());
static_assert(ill_formed<lvalue_push_front_t, vec_type>::value, "");
static_assert(ill_formed<rvalue_push_front_t, vec_type>::value, "");
static_assert(ill_formed<pop_front_t, vec_type>::value, "");
BOOST_AUTO_TEST_CASE(front_back)
{
{
vec_type v;
int const i = 0;
static_assert(std::is_same<decltype(v.push_back(0)), void>::value, "");
static_assert(std::is_same<decltype(v.push_back(i)), void>::value, "");
static_assert(std::is_same<decltype(v.pop_back()), void>::value, "");
v.push_back(i);
BOOST_CHECK(v.front() == i);
BOOST_CHECK(v.back() == i);
v.push_back(1);
BOOST_CHECK(v.front() == i);
BOOST_CHECK(v.back() == 1);
v.push_back(2);
BOOST_CHECK(v.front() == i);
BOOST_CHECK(v.back() == 2);
static_assert(std::is_same<decltype(v.front()), int &>::value, "");
static_assert(std::is_same<decltype(v.back()), int &>::value, "");
v.front() = 9;
v.back() = 8;
BOOST_CHECK(v == vec_type({9, 1, 8}));
v.pop_back();
BOOST_CHECK(v == vec_type({9, 1}));
}
{
vec_type const v = {3, 2, 1};
BOOST_CHECK(v.front() == 3);
BOOST_CHECK(v.back() == 1);
static_assert(
std::is_same<decltype(v.front()), int const &>::value, "");
static_assert(std::is_same<decltype(v.back()), int const &>::value, "");
}
}
BOOST_AUTO_TEST_CASE(data_index_at)
{
{
vec_type v = {3, 2, 1};
BOOST_CHECK(v.data()[0] == 3);
BOOST_CHECK(v.data()[1] == 2);
BOOST_CHECK(v.data()[2] == 1);
BOOST_CHECK(v[0] == 3);
BOOST_CHECK(v[1] == 2);
BOOST_CHECK(v[2] == 1);
BOOST_CHECK_NO_THROW(v.at(0));
BOOST_CHECK_NO_THROW(v.at(1));
BOOST_CHECK_NO_THROW(v.at(2));
BOOST_CHECK_THROW(v.at(3), std::out_of_range);
static_assert(std::is_same<decltype(v.data()), int *>::value, "");
static_assert(std::is_same<decltype(v[0]), int &>::value, "");
static_assert(std::is_same<decltype(v.at(0)), int &>::value, "");
v[0] = 8;
v.at(1) = 9;
BOOST_CHECK(v == vec_type({8, 9, 1}));
}
{
vec_type const v = {3, 2, 1};
BOOST_CHECK(v.data()[0] == 3);
BOOST_CHECK(v.data()[1] == 2);
BOOST_CHECK(v.data()[2] == 1);
BOOST_CHECK(v[0] == 3);
BOOST_CHECK(v[1] == 2);
BOOST_CHECK(v[2] == 1);
BOOST_CHECK_NO_THROW(v.at(0));
BOOST_CHECK_NO_THROW(v.at(1));
BOOST_CHECK_NO_THROW(v.at(2));
BOOST_CHECK_THROW(v.at(3), std::out_of_range);
static_assert(std::is_same<decltype(v.data()), int const *>::value, "");
static_assert(std::is_same<decltype(v[0]), int const &>::value, "");
static_assert(std::is_same<decltype(v.at(0)), int const &>::value, "");
}
}
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