#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
#include "doctest.h"
#include "histogram_internal.h"

TEST_CASE("Test find_minmax") {
    double min, max;

    SUBCASE("Empty vector") {
        find_minmax({}, min, max);
        CHECK(min == 0);
        CHECK(max == 0);
    }

    SUBCASE("Single element") {
        find_minmax({5}, min, max);
        CHECK(min == 5);
        CHECK(max == 5);
    }

    SUBCASE("Positive numbers") {
        find_minmax({1, 2, 3}, min, max);
        CHECK(min == 1);
        CHECK(max == 3);
    }
}