#include <gtest/gtest.h>

#include <rublon/authentication_step_interface.hpp>

#include <tl/expected.hpp>
class err {};

class err2 {};

struct expect {
    int s;
};

struct moreexpected {
    int a;
};

tl::expected< expect, err > foo(int a) {
    if(a > 10) {
        return tl::unexpected{err{}};
    }
    return expect{4 * a};
}

TEST(expected, tests) {
    auto value = foo(11)
                   .and_then([](const expect & expect) { return tl::expected< moreexpected, err >{moreexpected{expect.s * 2}}; })
                   .or_else([](const err & error) { return tl::expected< moreexpected, err >{moreexpected{5}}; })
                   .and_then([](const moreexpected &expected){return tl::expected<int, err>{6*expected.a};} )
      ;

    EXPECT_EQ(*value, 5 * 6);
}