cpp-game-engine/graphics/test/renderer_test.cxx

//
//  direct_renderer_test.cxx
//  graphics-test
//
//  Created by Sam Jaffe on 6/1/19.
//  Copyright © 2019 Sam Jaffe. All rights reserved.
//

#include <gmock/gmock.h>

#include "../src/renderer_impl.hpp"
#include "game/graphics/renderer.hpp"
#include "game/graphics/vertex.h"
#include "matrix/matrix.hpp"

struct mock_renderer_impl : graphics::renderer_impl {
  MOCK_CONST_METHOD0(manager, std::shared_ptr<graphics::manager const>());
  MOCK_METHOD3(draw, void(identity<graphics::material>, math::matr4 const &,
                          std::vector<graphics::vertex> const &));
  MOCK_METHOD0(clear, void());
  MOCK_METHOD0(flush, void());
};

struct DirectRendererTest : testing::Test {
  void SetUp() override;
  void TearDown() override;

  std::unique_ptr<graphics::direct_renderer> renderer;
  mock_renderer_impl * mock;
};

void DirectRendererTest::SetUp() {
  mock = new mock_renderer_impl;
  renderer.reset(new graphics::direct_renderer(mock));
}

void DirectRendererTest::TearDown() { delete mock; }

TEST_F(DirectRendererTest, ClearPassesToClear) {
  EXPECT_CALL(*mock, clear()).Times(1);
  renderer->clear();
}

TEST_F(DirectRendererTest, FlushPassesToFlush) {
  EXPECT_CALL(*mock, flush()).Times(1);
  renderer->flush();
}