#define BOOST_TEST_MODULE ConcatTest
#include <boost/test/unit_test.hpp>
#include <vector>
#include <list>
#include "concat.h"

template <typename Range1, typename Range2, typename Range3>
bool TestConcat(Range1 &r1, Range2 &r2, Range3 &r3)
{
	std::vector<int> v1, v2;
	v1.insert(v1.end(), r1.begin(), r1.end());
	v1.insert(v1.end(), r2.begin(), r2.end());
	v2.insert(v2.end(), r3.begin(), r3.end());
	return v1 == v2;
}

template <typename Range1, typename Range2>
bool TestConcat(Range1 &r1, Range2 &r2)
{
	return TestConcat(r1, r2, Concatenate(r1, r2));
}

BOOST_AUTO_TEST_CASE(Concat)
{
	int a1[] = { 1, 2, 3, 4, 5 };
	int a2[] = { 10, 11, 12 };
	std::vector<int> v(boost::begin(a1), boost::end(a1));
	std::list<int> l(boost::begin(a2), boost::end(a2));
	int value = 0;
	boost::iterator_range<int*> i(&value, &value+1), n((int*)NULL, (int*)NULL);
    
	BOOST_CHECK(TestConcat(l, v));
	BOOST_CHECK(TestConcat(v, l));
	BOOST_CHECK(TestConcat(v, v));
	BOOST_CHECK(TestConcat(n, v));
	BOOST_CHECK(TestConcat(v, n));
	BOOST_CHECK(TestConcat(n, n));
	BOOST_CHECK(TestConcat(n, i));
	BOOST_CHECK(TestConcat(i, n));
	BOOST_CHECK(TestConcat(i, v));
	BOOST_CHECK(TestConcat(i, i));
}