#include <iteratoriterator.hpp>

#include <vector>

#include <string>

#include "catch.hpp"

using iter::IterIterWrapper;

TEST_CASE("Iterator over a vector of vector iterators", "[iteratoriterator]") {

using std::vector;

vector<int> v = {2, 4, 6, 8};

IterIterWrapper<vector<vector<int>::iterator>> itr;

itr.get().push_back(std::begin(v) + 1);

itr.get().push_back(std::end(v) - 1);

itr.get().push_back(std::begin(v));

auto it = std::begin(itr);

REQUIRE( *it == 4 );

REQUIRE( it != std::end(itr) );

++it;

REQUIRE( *it == 8 );

it++;

REQUIRE( *it == 2 );

++it;

REQUIRE( it == std::end(itr) );

REQUIRE( itr[0] == 4 );

REQUIRE( itr[1] == 8 );

REQUIRE( itr[2] == 2 );

auto rit = itr.rbegin();

REQUIRE( *rit == 2 );

REQUIRE( rit != itr.rend() );

++rit;

REQUIRE( *rit == 8 );

++rit;

REQUIRE( *rit == 4 );

++rit;

REQUIRE( rit == itr.rend() );

}

TEST_CASE("IteratorIterator operator->", "[iteratoriterator]") {

using std::vector;

using std::string;

vector<string> v = {"hello", "everyone"};

IterIterWrapper<vector<vector<string>::iterator>> itritr;

itritr.get().push_back(std::end(v) - 1);

itritr.get().push_back(std::begin(v));

auto it = std::begin(itritr);

REQUIRE( it->size() == 8 );

}