#include <vector>

#include "xtensor/core/xmultiindex_iterator.hpp"

#include "test_common.hpp"

namespace xt

{

TEST_SUITE("xmultiindex_iterator")

{

TEST_CASE("sum")

{

using shape_type = std::vector<std::size_t>;

using iter_type = xmultiindex_iterator<shape_type>;

shape_type roi_begin{2, 3, 4};

shape_type roi_end{3, 5, 6};

shape_type current{2, 3, 4};

iter_type iter(roi_begin, roi_end, current, 0);

iter_type end(roi_begin, roi_end, roi_end, 4);

shape_type should(3);

for (should[0] = roi_begin[0]; should[0] < roi_end[0]; ++should[0])

{

for (should[1] = roi_begin[1]; should[1] < roi_end[1]; ++should[1])

{

for (should[2] = roi_begin[2]; should[2] < roi_end[2]; ++should[2])

{

EXPECT_EQ(*iter, should);

++iter;

}

}

}

EXPECT_TRUE(iter == end);

}

}

}