tor-browser

screen_capturer_mac_unittest.cc (5899B)

---

/*
*  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
*
*  Use of this source code is governed by a BSD-style license
*  that can be found in the LICENSE file in the root of the source
*  tree. An additional intellectual property rights grant can be found
*  in the file PATENTS.  All contributing project authors may
*  be found in the AUTHORS file in the root of the source tree.
*/

#include <ApplicationServices/ApplicationServices.h>

#include <chrono>
#include <memory>
#include <thread>

#include "modules/desktop_capture/desktop_capture_options.h"
#include "modules/desktop_capture/desktop_capturer.h"
#include "modules/desktop_capture/desktop_frame.h"
#include "modules/desktop_capture/desktop_geometry.h"
#include "modules/desktop_capture/desktop_region.h"
#include "modules/desktop_capture/mac/desktop_configuration.h"
#include "modules/desktop_capture/mock_desktop_capturer_callback.h"
#include "test/gtest.h"

using ::testing::_;
using ::testing::AnyNumber;
using ::testing::AnyOf;
using ::testing::InSequence;

namespace webrtc {

class ScreenCapturerMacTest : public ::testing::Test {
public:
 // Verifies that the whole screen is initially dirty.
 void CaptureDoneCallback1(DesktopCapturer::Result result,
                           std::unique_ptr<DesktopFrame>* frame);

 // Verifies that a rectangle explicitly marked as dirty is propagated
 // correctly.
 void CaptureDoneCallback2(DesktopCapturer::Result result,
                           std::unique_ptr<DesktopFrame>* frame);

protected:
 void SetUp() override {
   capturer_ = DesktopCapturer::CreateScreenCapturer(
       DesktopCaptureOptions::CreateDefault());
 }

 std::unique_ptr<DesktopCapturer> capturer_;
 MockDesktopCapturerCallback callback_;
};

class ScreenCapturerSckTest : public ScreenCapturerMacTest {
protected:
 void SetUp() override {
   auto options = DesktopCaptureOptions::CreateDefault();
   options.set_allow_sck_capturer(true);
   capturer_ = DesktopCapturer::CreateScreenCapturer(options);
 }

 std::unique_ptr<DesktopCapturer> capturer_;
 MockDesktopCapturerCallback callback_;
};

void ScreenCapturerMacTest::CaptureDoneCallback1(
   DesktopCapturer::Result result,
   std::unique_ptr<DesktopFrame>* frame) {
 EXPECT_EQ(result, DesktopCapturer::Result::SUCCESS);

 MacDesktopConfiguration config = MacDesktopConfiguration::GetCurrent(
     MacDesktopConfiguration::BottomLeftOrigin);

 // Verify that the region contains full frame.
 DesktopRegion::Iterator it((*frame)->updated_region());
 EXPECT_TRUE(!it.IsAtEnd() && it.rect().equals(config.pixel_bounds));
}

void ScreenCapturerMacTest::CaptureDoneCallback2(
   DesktopCapturer::Result result,
   std::unique_ptr<DesktopFrame>* frame) {
 EXPECT_EQ(result, DesktopCapturer::Result::SUCCESS);

 MacDesktopConfiguration config = MacDesktopConfiguration::GetCurrent(
     MacDesktopConfiguration::BottomLeftOrigin);
 int width = config.pixel_bounds.width();
 int height = config.pixel_bounds.height();

 EXPECT_EQ(width, (*frame)->size().width());
 EXPECT_EQ(height, (*frame)->size().height());
 EXPECT_TRUE((*frame)->data() != NULL);
 // Depending on the capture method, the screen may be flipped or not, so
 // the stride may be positive or negative.
 // The stride may in theory be larger than the width due to alignment, but in
 // other cases, like window capture, the stride normally matches the monitor
 // resolution whereas the width matches the window region on said monitor.
 // Make no assumptions.
 EXPECT_LE(static_cast<int>(sizeof(uint32_t) * width),
           abs((*frame)->stride()));
}

TEST_F(ScreenCapturerMacTest, Capture) {
 EXPECT_CALL(callback_,
             OnCaptureResultPtr(DesktopCapturer::Result::SUCCESS, _))
     .Times(2)
     .WillOnce(Invoke(this, &ScreenCapturerMacTest::CaptureDoneCallback1))
     .WillOnce(Invoke(this, &ScreenCapturerMacTest::CaptureDoneCallback2));

 SCOPED_TRACE("");
 capturer_->Start(&callback_);

 // Check that we get an initial full-screen updated.
 capturer_->CaptureFrame();

 // Check that subsequent dirty rects are propagated correctly.
 capturer_->CaptureFrame();
}

TEST_F(ScreenCapturerSckTest, Capture) {
 if (!CGPreflightScreenCaptureAccess()) {
   GTEST_SKIP()
       << "ScreenCapturerSckTest needs TCC ScreenCapture authorization";
 }

 std::atomic<bool> done{false};
 std::atomic<DesktopCapturer::Result> result{
     DesktopCapturer::Result::ERROR_TEMPORARY};
 InSequence s;
 EXPECT_CALL(callback_,
             OnCaptureResultPtr(DesktopCapturer::Result::ERROR_TEMPORARY, _))
     .Times(AnyNumber());
 EXPECT_CALL(callback_,
             OnCaptureResultPtr(AnyOf(DesktopCapturer::Result::ERROR_PERMANENT,
                                      DesktopCapturer::Result::SUCCESS),
                                _))
     .WillOnce([this, &result](DesktopCapturer::Result res,
                               std::unique_ptr<DesktopFrame>* frame) {
       result = res;
       if (res == DesktopCapturer::Result::SUCCESS) {
         CaptureDoneCallback1(res, frame);
       }
     });
 SCOPED_TRACE("");
 capturer_->Start(&callback_);

 while (result == DesktopCapturer::Result::ERROR_TEMPORARY) {
   // Check that we get an initial full-screen updated.
   capturer_->CaptureFrame();
   std::this_thread::sleep_for(std::chrono::milliseconds(1));
 }
 ASSERT_NE(result, DesktopCapturer::Result::ERROR_PERMANENT);

 EXPECT_CALL(callback_,
             OnCaptureResultPtr(DesktopCapturer::Result::SUCCESS, _))
     .Times(1)
     .WillOnce([this, &done](auto res, auto frame) {
       CaptureDoneCallback2(res, frame);
       done = true;
     });

 while (!done) {
   // Check that we get an initial full-screen updated.
   capturer_->CaptureFrame();
   std::this_thread::sleep_for(std::chrono::milliseconds(1));
 }
}

}  // namespace webrtc