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#include <cassert>
#include <iostream>
#include "doubly-linked-list.hpp"
void insert_basic_tests()
{
doubly_linked_list<int> ll;
ll.push_back(1);
assert(ll.front() == ll.back() && ll.front() == 1);
ll.pop_back();
assert(ll.empty());
ll.push_front(2);
assert(ll.front() == ll.back() && ll.front() == 2);
ll.pop_back();
assert(ll.empty());
ll.push_back(1);
ll.push_front(2);
assert(ll.front() == 2 && ll.back() == 1 && ll.size() == 2);
}
void insert_erase_tests()
{
// push front and back
doubly_linked_list<int> ll;
for (size_t i = 10; i < 20; i++)
{
ll.push_back(i);
}
for (size_t i = 0; i < 10; i++)
{
ll.push_front(9 - i);
}
int start = 0;
for (auto it = ll.begin(); it != ll.end(); ++it)
{
assert(*it == start++);
}
// remove from the middle
auto it = ll.begin();
for (size_t i = 0; i < 10; i++)
++it;
while (it != ll.end())
{
auto prev = it++;
if (*prev == 19)
int x = 10;
ll.remove(prev);
}
start = 0;
for (const auto& x : ll)
{
assert(x == start++);
}
// insert into the middle
{
auto it = ll.begin();
for (size_t i = 0; i < 5; i++)
++it;
for (size_t i = 0; i < 10; i++)
{
ll.insert(it, i + 10);
}
}
{
auto it = ll.begin();
for (size_t i = 0; i < 5; i++)
{
assert(*it == i);
++it;
}
for (size_t i = 0; i < 10; i++)
{
assert(*it == i + 10);
++it;
}
for (size_t i = 0; i < 5; i++)
{
assert(*it == i + 5);
++it;
}
assert(it == ll.end());
}
}
void constructor_tests()
{
doubly_linked_list<int> ll;
for (size_t i = 0; i < 100; i++)
{
ll.push_back(i);
}
doubly_linked_list<int> copy(ll);
assert(copy.size() == ll.size());
auto it = ll.begin();
for (const auto& x : copy)
{
assert(x == *it);
++it;
}
doubly_linked_list<int> move(std::move(copy));
assert(copy.empty());
assert(move.size() == ll.size());
auto it1 = ll.begin();
for (const auto& x : move)
{
assert(x == *it1);
++it1;
}
}
int main()
{
std::cout << "Starting tests..." << std::endl;
insert_basic_tests();
insert_erase_tests();
constructor_tests();
std::cout << "No assertions failed" << std::endl;
}
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