ls-standard-library/test/window/SdlWindowApiTest.cpp

/*
 * author: Patrick-Christopher Mattulat
 * e-mail: webmaster@lynarstudios.com
 */

#include <gmock/gmock.h>
#include <test/window/mock/SdlApiMock.hpp>
#include <glossary/StatusCodes.hpp>
#include <gtest/gtest.h>
#include <interface/AStatusCode.hpp>
#include <ls-std/core/exception/IllegalArgumentException.hpp>
#include <string>
#include <window/SdlWindowApi.hpp>

using ls::atlantis::glossary::StatusCodes;
using ls::atlantis::interfaces::AStatusCode;
using ls::atlantis::interfaces::ISdlApi;
using ls::atlantis::window::SdlWindowApi;
using ls::atlantis::window::test::SdlApiMock;
using ls::std::core::IllegalArgumentException;
using ::std::make_shared;
using ::std::shared_ptr;
using ::std::string;
using ::testing::Return;
using ::testing::StrEq;
using ::testing::Test;

namespace
{
  class SdlWindowApiTest : public Test
  {
    public:

      SdlWindowApiTest() = default;
      ~SdlWindowApiTest() override = default;

      shared_ptr<SdlApiMock> sdlApiMock = make_shared<SdlApiMock>();
  };

  TEST_F(SdlWindowApiTest, constructor_nullPointer)
  {
    ASSERT_THROW(SdlWindowApi(nullptr), IllegalArgumentException);
  }

  TEST_F(SdlWindowApiTest, init)
  {
    int dummyWindowHandle = 0;
    auto *fakeWindow = static_cast<SDL_Window *>(static_cast<void *>(&dummyWindowHandle));

    EXPECT_CALL(*sdlApiMock, Init(SDL_INIT_VIDEO)).WillOnce(Return(1));
    EXPECT_CALL(*sdlApiMock, CreateWindow(StrEq(""), 0, 0, SDL_WINDOW_FULLSCREEN)).WillOnce(Return(fakeWindow));
    EXPECT_CALL(*sdlApiMock, DestroyWindow(fakeWindow));
    EXPECT_CALL(*sdlApiMock, Quit());

    ASSERT_EQ(StatusCodes::OK, SdlWindowApi(sdlApiMock).init().getCode());
  }

  TEST_F(SdlWindowApiTest, init_failed)
  {
    const string hint = "Upsi Dupsi";

    EXPECT_CALL(*sdlApiMock, Init(SDL_INIT_VIDEO)).WillOnce(Return(0));
    EXPECT_CALL(*sdlApiMock, GetError()).WillOnce(Return(hint.c_str()));
    EXPECT_CALL(*sdlApiMock, Quit());

    const AStatusCode statusCode = SdlWindowApi(sdlApiMock).init();

    ASSERT_EQ(StatusCodes::WINDOW_API_LOADING_FAILED, statusCode.getCode());
    ASSERT_EQ(1, statusCode.getHints().size());
    ASSERT_STREQ(hint.c_str(), statusCode.getHints()[0].c_str());
  }

  TEST_F(SdlWindowApiTest, init_windowCreationFailed)
  {
    const string hint = "Upsi Dupsi";

    EXPECT_CALL(*sdlApiMock, Init(SDL_INIT_VIDEO)).WillOnce(Return(1));
    EXPECT_CALL(*sdlApiMock, CreateWindow(StrEq(""), 0, 0, SDL_WINDOW_FULLSCREEN)).WillOnce(Return(nullptr));
    EXPECT_CALL(*sdlApiMock, GetError()).WillOnce(Return(hint.c_str()));
    EXPECT_CALL(*sdlApiMock, Quit());

    const AStatusCode statusCode = SdlWindowApi(sdlApiMock).init();

    ASSERT_EQ(StatusCodes::WINDOW_CREATION_FAILED, statusCode.getCode());
    ASSERT_EQ(1, statusCode.getHints().size());
    ASSERT_STREQ(hint.c_str(), statusCode.getHints()[0].c_str());
  }
}