exercism/cpp/ellens-alien-game/ellens_alien_game_test.cpp

#include "ellens_alien_game.cpp"
#ifdef EXERCISM_TEST_SUITE
#include <catch2/catch.hpp>
#else
#include "test/catch.hpp"
#endif

using namespace targets;

TEST_CASE("Alien has correct initial coordinates", "[task_1]") {
  Alien alien{2, -1};
  REQUIRE(alien.x_coordinate == 2);
  REQUIRE(alien.y_coordinate == -1);
}

TEST_CASE("Alien has correct initial health", "[task_1]") {
  Alien alien{22, 0};
  REQUIRE(alien.get_health() == 3);
}

TEST_CASE("New alien does not share old aliens position", "[task_1]") {
  Alien alien1{22, 0};
  Alien alien2{0, 22};
  REQUIRE(alien1.x_coordinate != alien2.x_coordinate);
  REQUIRE(alien1.y_coordinate != alien2.y_coordinate);
}

TEST_CASE("Alien is always hit", "[task_2]") {
  Alien alien{6, 7};
  REQUIRE(alien.hit());
}

TEST_CASE(
    "Alien is alive while health is greater than 0 and stays dead afterwards",
    "[task_3]") {
  Alien alien{2, 54};
  REQUIRE(alien.is_alive());
  alien.hit();
  REQUIRE(alien.is_alive());
  alien.hit();
  REQUIRE(alien.is_alive());
  alien.hit();
  REQUIRE(!alien.is_alive());
  alien.hit();
  REQUIRE(!alien.is_alive());
}

TEST_CASE("Alien Teleports reports succesful", "[task_4]") {
  Alien alien{22, 1};
  REQUIRE(alien.teleport(99, 8));
}

TEST_CASE("Alien Teleports where it should", "[task_4]") {
  Alien alien{2, -54};
  REQUIRE(alien.x_coordinate == 2);
  REQUIRE(alien.y_coordinate == -54);
  alien.teleport(99, 8);
  REQUIRE(alien.x_coordinate == 99);
  REQUIRE(alien.y_coordinate == 8);
}

TEST_CASE("Alien collision detection with other aliens", "[task_5]") {
  Alien alien1{22, 0};
  Alien alien2{0, 22};
  Alien alien3{22, 0};
  REQUIRE_FALSE(alien1.collision_detection(alien2));
  REQUIRE(alien1.collision_detection(alien3));
}

#if defined(EXERCISM_RUN_ALL_TESTS)
#endif