#include <gtest/gtest.h>
#include <m5_utility/stl/expected.hpp>

TEST(Expected, RelationalOperators)
{
    m5::stl::expected<int, int> o1 = 42;
    m5::stl::expected<int, int> o2{m5::stl::unexpect, 0};
    const m5::stl::expected<int, int> o3 = 42;

    EXPECT_TRUE(o1 == o1);
    EXPECT_TRUE(o1 != o2);
    EXPECT_TRUE(o1 == o3);
    EXPECT_TRUE(o3 == o3);

    m5::stl::expected<void, int> o6;

    EXPECT_TRUE(o6 == o6);
}