//  Copyright 2020-2021 Herald Project Contributors

//  SPDX-License-Identifier: Apache-2.0

//

#include <memory>

#include "catch.hpp"

#include "herald/herald.h"

// TEST_CASE("datatypes-uuid-basics", "[datatypes][uuid][ctor][basics]") {

//   SECTION("datatypes-uuid-basics") {

//     auto uuid1 = herald::datatype::UUID::random();

//     REQUIRE(uuid1.valid());

//     REQUIRE(uuid1.string().size() == 36); // 4 hyphens, 16 hex bytes = 36 characters

//   }

// }

TEST_CASE("random-allzeros","[randomness][allzeros][basic][datatypes]") {

  SECTION("random-allzeros-basic") {

    herald::datatype::AllZerosNotRandom rnd;

    REQUIRE(rnd.nextInt() == 0);

    REQUIRE(rnd.nextDouble() == 0);

    herald::datatype::Data expected(std::byte(0),4);

    herald::datatype::Data toFill;

    rnd.nextBytes(4, toFill);

    REQUIRE(toFill == expected);

  }

}

TEST_CASE("datatypes-uuid-notrandom","[randomness][uuid][basic][datatypes]") {

  SECTION("datatypes-uuid-notrandom") {

    herald::datatype::AllZerosNotRandom rnd;

    herald::datatype::RandomnessGenerator gen(std::move(rnd));

    auto emptyV4 = herald::datatype::UUID::random(gen);

    REQUIRE(emptyV4.string() == std::string("00000000-0000-4000-8000-000000000000")); // v4 variant 1

  }

}

TEST_CASE("datatypes-uuid-random","[randomness][uuid][basic][datatypes]") {

  SECTION("datatypes-uuid-random") {

    herald::datatype::IntegerDistributedRandomSource rnd;

    herald::datatype::RandomnessGenerator gen(std::move(rnd));

    auto randomV4 = herald::datatype::UUID::random(gen);

    std::string str = randomV4.string();

    INFO("UUID v4 random value: " << str);

    REQUIRE(str != std::string("00000000-0000-4000-8000-000000000000")); // v4 variant 1

  }

}