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#include <catch.hpp>
#include <random>
#include "sopt/wrapper.h"
TEST_CASE("Function wrappers", "[utility]") {
using namespace sopt;
typedef Array<int> t_Array;
typedef t_Array &t_RefArray;
typedef t_Array const t_ConstRefArray;
SECTION("Square function") {
auto func = [](t_RefArray output, t_ConstRefArray const &input) { output = input * 2 + 1; };
t_Array const x = t_Array::Random(5);
auto const A = details::wrap<t_Array>(func);
// Expected result
t_Array const expected = (x * 2 + 1).eval();
CHECK((A * x).matrix() == expected.matrix());
CHECK(A(x).matrix() == expected.matrix());
}
SECTION("Rectangular function") {
auto func = [](t_RefArray output, t_ConstRefArray const &input) {
output = input.head(input.size() / 2) * 2 + 1;
};
t_Array const x = t_Array::Random(5);
auto const A = details::wrap<t_Array>(func, {{1, 2, 0}});
// Expected result
t_Array const expected = (x.head(x.size() / 2) * 2 + 1).eval();
CHECK((A * x).cols() == 1);
CHECK((A * x).rows() == 2);
CHECK((A * x).matrix() == expected.matrix());
CHECK(A(x).matrix() == expected.matrix());
}
SECTION("Fixed output-size functions") {
auto func
= [](t_RefArray output, t_ConstRefArray const &input) { output = input.head(3) * 2 + 1; };
t_Array const x = t_Array::Random(5);
auto const A = details::wrap<t_Array>(func, {{0, 1, 3}});
// Expected result
t_Array const expected = (x.head(3) * 2 + 1).eval();
CHECK((A * x).cols() == 1);
CHECK((A * x).rows() == 3);
CHECK((A * x).matrix() == expected.matrix());
CHECK(A(x).matrix() == expected.matrix());
}
}
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