test_window_desc.cpp

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/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "../stdafx.h"
 
#include "../3rdparty/catch2/catch.hpp"
 
#include "mock_environment.h"
 
#include "../window_gui.h"
 
extern std::vector<WindowDesc*> *_window_descs;
 
 
class WindowDescTestsFixture {
private:
  MockEnvironment &mock = MockEnvironment::Instance();
};
 
 
TEST_CASE("WindowDesc - ini_key uniqueness")
{
  std::set<std::string> seen;
 
  for (const WindowDesc *window_desc : *_window_descs) {
 
    if (window_desc->ini_key == nullptr) continue;
 
    CAPTURE(window_desc->ini_key);
    CHECK((seen.find(window_desc->ini_key) == std::end(seen)));
 
    seen.insert(window_desc->ini_key);
  }
}
 
TEST_CASE("WindowDesc - ini_key validity")
{
  const WindowDesc *window_desc = GENERATE(from_range(std::begin(*_window_descs), std::end(*_window_descs)));
 
  bool has_inikey = window_desc->ini_key != nullptr;
  bool has_widget = std::any_of(window_desc->nwid_begin, window_desc->nwid_end, [](const NWidgetPart &part) { return part.type == WWT_DEFSIZEBOX || part.type == WWT_STICKYBOX; });
 
  INFO(fmt::format("{}:{}", window_desc->file, window_desc->line));
  CAPTURE(has_inikey);
  CAPTURE(has_widget);
 
  CHECK((has_widget == has_inikey));
}
 
static bool IsNWidgetTreeClosed(const NWidgetPart *nwid_begin, const NWidgetPart *nwid_end)
{
  int depth = 0;
  for (; nwid_begin < nwid_end; ++nwid_begin) {
    if (IsContainerWidgetType(nwid_begin->type)) ++depth;
    if (nwid_begin->type == WPT_ENDCONTAINER) --depth;
  }
  return depth == 0;
}
 
TEST_CASE("WindowDesc - NWidgetParts properly closed")
{
  const WindowDesc *window_desc = GENERATE(from_range(std::begin(*_window_descs), std::end(*_window_descs)));
 
  INFO(fmt::format("{}:{}", window_desc->file, window_desc->line));
 
  CHECK(IsNWidgetTreeClosed(window_desc->nwid_begin, window_desc->nwid_end));
}
 
TEST_CASE_METHOD(WindowDescTestsFixture, "WindowDesc - NWidgetPart validity")
{
  const WindowDesc *window_desc = GENERATE(from_range(std::begin(*_window_descs), std::end(*_window_descs)));
 
  INFO(fmt::format("{}:{}", window_desc->file, window_desc->line));
 
  NWidgetStacked *shade_select = nullptr;
  std::unique_ptr<NWidgetBase> root = nullptr;
 
  REQUIRE_NOTHROW(root = MakeWindowNWidgetTree(window_desc->nwid_begin, window_desc->nwid_end, &shade_select));
  CHECK((root != nullptr));
}