#include "catch2/catch_test_macros.hpp"

#include "hack/patterns/ring_buffer.hpp"

TEST_CASE("patterns") 
{
  SECTION("ring buffer")
  {
    // single value
    hack::patterns::ring_buffer<int> rb1(10);
    REQUIRE(rb1.empty() == true);

    for (int i = 1; i < 13; ++i) rb1.put(i);
    REQUIRE(rb1.empty() == false);
    REQUIRE(rb1.size() == 10);

    while(!rb1.empty()) REQUIRE(rb1.get().has_value() == true);
    REQUIRE(rb1.empty() == true);
    REQUIRE(rb1.size() == 0);

    rb1.put(123);
    rb1.put(23);
    rb1.put(3);
    REQUIRE(rb1.get().value() == 123);
    REQUIRE(rb1.empty() == false);
    REQUIRE(rb1.size() == 2);

    REQUIRE(rb1.get().value() == 23);
    REQUIRE(rb1.empty() == false);
    REQUIRE(rb1.size() == 1);

    rb1.reset();
    REQUIRE(rb1.empty() == true);
    REQUIRE(rb1.size() == 0);
    REQUIRE(rb1.get().has_value() == false);

    // vector value
    std::vector<int> v { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
    hack::patterns::ring_buffer<int> rb2(10);
    REQUIRE(rb2.empty() == true);

    rb2.put(v);
    REQUIRE(rb2.get().value() == 1);
    REQUIRE(rb2.get().value() == 2);

    v.emplace_back(17);
    rb2.put(v);
    REQUIRE(rb2.get().value() == 2);
    REQUIRE(rb2.get().value() == 3);
    REQUIRE(rb2.get().value() == 4);
    REQUIRE(rb2.get().value() == 5);
    REQUIRE(rb2.get().value() == 6);
    REQUIRE(rb2.get().value() == 7);
    REQUIRE(rb2.get().value() == 8);
    REQUIRE(rb2.get().value() == 9);
    REQUIRE(rb2.get().value() == 10);
    REQUIRE(rb2.get().value() == 17);
  }
}