flutter_view_unittests.cc

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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#include <memory>
#include <string>
 
#include "flutter/shell/platform/windows/client_wrapper/include/flutter/flutter_view.h"
#include "flutter/shell/platform/windows/client_wrapper/testing/stub_flutter_windows_api.h"
#include "gtest/gtest.h"
 
namespace flutter {
 
namespace {
 
// Stub implementation to validate calls to the API.
class TestWindowsApi : public testing::StubFlutterWindowsApi {
  HWND ViewGetHWND() override { return reinterpret_cast<HWND>(7); }
 
  IDXGIAdapter* ViewGetGraphicsAdapter() override {
    return reinterpret_cast<IDXGIAdapter*>(8);
  }
 
  bool EngineGetGraphicsAdapter(IDXGIAdapter** adapter_out) override {
    *adapter_out = reinterpret_cast<IDXGIAdapter*>(9);
    return true;
  }
};
 
}  // namespace
 
TEST(FlutterViewTest, HwndAccessPassesThrough) {
  testing::ScopedStubFlutterWindowsApi scoped_api_stub(
      std::make_unique<TestWindowsApi>());
  auto test_api = static_cast<TestWindowsApi*>(scoped_api_stub.stub());
  FlutterView view(reinterpret_cast<FlutterDesktopViewRef>(2));
  EXPECT_EQ(view.GetNativeWindow(), reinterpret_cast<HWND>(7));
}
 
TEST(FlutterViewTest, GraphicsAdapterAccessPassesThrough) {
  testing::ScopedStubFlutterWindowsApi scoped_api_stub(
      std::make_unique<TestWindowsApi>());
  auto test_api = static_cast<TestWindowsApi*>(scoped_api_stub.stub());
  FlutterView view(reinterpret_cast<FlutterDesktopViewRef>(2));
 
  IDXGIAdapter* adapter = view.GetGraphicsAdapter();
  EXPECT_EQ(adapter, reinterpret_cast<IDXGIAdapter*>(8));
}
 
}  // namespace flutter