Index: remoting/client/plugin/touch_input_scaler_unittest.cc |
diff --git a/remoting/client/plugin/touch_input_scaler_unittest.cc b/remoting/client/plugin/touch_input_scaler_unittest.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..a361e0506064016e19b97795261e3e7392302228 |
--- /dev/null |
+++ b/remoting/client/plugin/touch_input_scaler_unittest.cc |
@@ -0,0 +1,291 @@ |
+// Copyright 2015 The Chromium 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 "remoting/client/plugin/touch_input_scaler.h" |
+ |
+#include <cmath> |
+ |
+#include "base/logging.h" |
+#include "remoting/protocol/protocol_mock_objects.h" |
+#include "testing/gmock/include/gmock/gmock.h" |
+#include "testing/gtest/include/gtest/gtest.h" |
+ |
+namespace remoting { |
+ |
+using ::testing::_; |
+using protocol::MockInputStub; |
+using protocol::TouchEvent; |
+using protocol::TouchEventPoint; |
+ |
+namespace { |
+ |
+const float kDefaultRadius = 30.0f; |
+ |
+// If the rounding error for the coordinates checked in |
+// TouchPointCoordinateEqual is within 1 pixel diff, it should be acceptable. |
+const float kEpsilon = 1.0f; |
+ |
+MATCHER_P(TouchPointCoordinateEqual, |
+ expected_event, |
+ "Expect point coordinates equal.") { |
+ EXPECT_EQ(expected_event.touch_points().size(), arg.touch_points().size()); |
+ if (arg.touch_points().size() != expected_event.touch_points().size()) |
+ return false; |
+ |
+ for (int i = 0; i < expected_event.touch_points().size(); ++i) { |
+ const TouchEventPoint& arg_point = arg.touch_points(i); |
+ const TouchEventPoint& expected_point = expected_event.touch_points(i); |
+ EXPECT_NEAR(expected_point.x(), arg_point.x(), kEpsilon); |
+ if (std::abs(expected_point.x() - arg_point.x()) >= kEpsilon) |
+ return false; |
+ |
+ EXPECT_NEAR(expected_point.y(), arg_point.y(), kEpsilon); |
+ if (std::abs(expected_point.y() - arg_point.y()) >= kEpsilon) |
+ return false; |
+ } |
+ return true; |
+} |
+ |
+struct Coordinate { |
+ float x; |
+ float y; |
+}; |
+ |
+} // namespace |
+ |
+class TouchInputScalerTest : public ::testing::Test { |
+ protected: |
+ TouchInputScalerTest() : touch_input_scaler_(&mock_stub_) {} |
+ |
+ void AddInputCoordinate(const Coordinate& coordinate) { |
+ coordinates_.push_back(coordinate); |
+ } |
+ |
+ void AddDefaultTestCoordinate() { |
+ coordinates_.push_back({1.0f, 1.0f}); |
+ } |
+ |
+ void InjectTestTouchEvent() { |
+ CHECK(!coordinates_.empty()); |
+ TouchEvent e; |
+ e.set_event_type(TouchEvent::TOUCH_POINT_MOVE); |
+ |
+ uint32_t id = 1; |
+ for (const Coordinate& coordinate : coordinates_) { |
+ TouchEventPoint* point = e.add_touch_points(); |
+ point->set_id(id++); |
+ point->set_x(coordinate.x); |
+ point->set_y(coordinate.y); |
+ point->set_radius_x(kDefaultRadius); |
+ point->set_radius_y(kDefaultRadius); |
+ } |
+ |
+ touch_input_scaler_.InjectTouchEvent(e); |
+ } |
+ |
+ void SetInputDimensions(int width, int height) { |
+ touch_input_scaler_.set_input_size(webrtc::DesktopSize(width, height)); |
+ } |
+ |
+ void SetOutputDimensions(int width, int height) { |
+ touch_input_scaler_.set_output_size(webrtc::DesktopSize(width, height)); |
+ } |
+ |
+ MockInputStub mock_stub_; |
+ TouchInputScaler touch_input_scaler_; |
+ |
+private: |
+ std::vector<Coordinate> coordinates_; |
+}; |
+ |
+// TouchInputFilter require both input and output dimensions. |
+// These test verify that no events are forwarded to the next InputStub if |
+// either dimensions are not set. |
+TEST_F(TouchInputScalerTest, BothDimensionsZero) { |
+ AddDefaultTestCoordinate(); |
+ EXPECT_CALL(mock_stub_, InjectTouchEvent(_)).Times(0); |
+ InjectTestTouchEvent(); |
+} |
+ |
+TEST_F(TouchInputScalerTest, SetOnlyInputDimensions) { |
+ SetInputDimensions(50, 60); |
+ AddDefaultTestCoordinate(); |
+ EXPECT_CALL(mock_stub_, InjectTouchEvent(_)).Times(0); |
+ InjectTestTouchEvent(); |
+} |
+ |
+TEST_F(TouchInputScalerTest, SetOnlyOutputDimensions) { |
+ SetOutputDimensions(50, 60); |
+ AddDefaultTestCoordinate(); |
+ EXPECT_CALL(mock_stub_, InjectTouchEvent(_)).Times(0); |
+ InjectTestTouchEvent(); |
+} |
+ |
+// The x,y coordinate fall in the desktop size. |
+TEST_F(TouchInputScalerTest, NoClampingNoScaling) { |
+ SetInputDimensions(50, 60); |
+ SetOutputDimensions(50, 60); |
+ |
+ AddInputCoordinate({10.0f, 15.0f}); |
+ TouchEvent expected_out; |
+ TouchEventPoint* point = expected_out.add_touch_points(); |
+ point->set_x(10.0f); |
+ point->set_y(15.0f); |
+ |
+ EXPECT_CALL(mock_stub_, |
+ InjectTouchEvent(TouchPointCoordinateEqual(expected_out))); |
+ InjectTestTouchEvent(); |
+} |
+ |
+// Make sure clamping works. |
+TEST_F(TouchInputScalerTest, ClampingNoScaling) { |
+ SetInputDimensions(50, 60); |
+ SetOutputDimensions(50, 60); |
+ |
+ // Note that this could happen if touch started in the chromoting window but |
+ // the finger moved off the windows. |
+ AddInputCoordinate({-1.0f, 1.0f}); |
+ TouchEvent expected_out; |
+ TouchEventPoint* point = expected_out.add_touch_points(); |
+ point->set_x(0.0f); |
+ point->set_y(1.0f); |
+ |
+ EXPECT_CALL(mock_stub_, |
+ InjectTouchEvent(TouchPointCoordinateEqual(expected_out))); |
+ InjectTestTouchEvent(); |
+} |
+ |
+TEST_F(TouchInputScalerTest, ClampingMultiplePointsNoScaling) { |
+ SetInputDimensions(50, 60); |
+ SetOutputDimensions(50, 60); |
+ |
+ AddInputCoordinate({-1.0f, 1.0f}); |
+ TouchEvent expected_out; |
+ TouchEventPoint* point = expected_out.add_touch_points(); |
+ point->set_x(0.0f); |
+ point->set_y(1.0f); |
+ |
+ AddInputCoordinate({-2.0f, 1.0f}); |
+ point = expected_out.add_touch_points(); |
+ point->set_x(0.0f); |
+ point->set_y(1.0f); |
+ |
+ AddInputCoordinate({-3.0f, -1.0f}); |
+ point = expected_out.add_touch_points(); |
+ point->set_x(0.0f); |
+ point->set_y(0.0f); |
+ |
+ AddInputCoordinate({100.0f, 100.0f}); |
+ point = expected_out.add_touch_points(); |
+ // 1 less than max width and height. |
+ point->set_x(49.0f); |
+ point->set_y(59.0f); |
+ |
+ EXPECT_CALL(mock_stub_, |
+ InjectTouchEvent(TouchPointCoordinateEqual(expected_out))); |
+ InjectTestTouchEvent(); |
+} |
+ |
+// Verify up scaling works. All coordinates should fall inside the output |
+// dimensions, after scaling, i.e. no clamping testing. |
+TEST_F(TouchInputScalerTest, UpScalingNoClamp) { |
+ const int kInputDimension = 20; |
+ const int kScalingFactor = 2; |
+ SetInputDimensions(kInputDimension, kInputDimension); |
+ SetOutputDimensions(kInputDimension * kScalingFactor, |
+ kInputDimension * kScalingFactor); |
+ |
+ AddInputCoordinate({1.0f, 1.0f}); |
+ TouchEvent expected_out; |
+ TouchEventPoint* point = expected_out.add_touch_points(); |
+ point->set_x(1.0f * kScalingFactor); |
+ point->set_y(1.0f * kScalingFactor); |
+ |
+ AddInputCoordinate({5.0f, 3.0f}); |
+ point = expected_out.add_touch_points(); |
+ point->set_x(5.0f * kScalingFactor); |
+ point->set_y(3.0f * kScalingFactor); |
+ EXPECT_CALL(mock_stub_, |
+ InjectTouchEvent(TouchPointCoordinateEqual(expected_out))); |
+ InjectTestTouchEvent(); |
+} |
+ |
+// Verify up scaling works. |
+TEST_F(TouchInputScalerTest, UpScaling) { |
+ const int kInputDimension = 20; |
+ const int kScalingFactor = 2; |
+ SetInputDimensions(kInputDimension, kInputDimension); |
+ SetOutputDimensions(kInputDimension * kScalingFactor, |
+ kInputDimension * kScalingFactor); |
+ |
+ AddInputCoordinate({25.0f, 25.0f}); |
+ TouchEvent expected_out; |
+ TouchEventPoint* point = expected_out.add_touch_points(); |
+ point->set_x(39.0f); |
+ point->set_y(39.0f); |
+ |
+ EXPECT_CALL(mock_stub_, |
+ InjectTouchEvent(TouchPointCoordinateEqual(expected_out))); |
+ InjectTestTouchEvent(); |
+} |
+ |
+// Verify down scaling works. All coordinates should fall inside the output |
+// dimensions, after scaling, i.e. no clamping testing. |
+TEST_F(TouchInputScalerTest, DownScalingNoClamp) { |
+ const int kOutputDimension = 20; |
+ const int kDownScalingFactor = 2; |
+ SetInputDimensions(kOutputDimension * kDownScalingFactor, |
+ kOutputDimension * kDownScalingFactor); |
+ SetOutputDimensions(kOutputDimension, kOutputDimension); |
+ |
+ AddInputCoordinate({2.0f, 2.0f}); |
+ TouchEvent expected_out; |
+ TouchEventPoint* point = expected_out.add_touch_points(); |
+ point->set_x(2.0f / kDownScalingFactor); |
+ point->set_y(2.0f / kDownScalingFactor); |
+ |
+ AddInputCoordinate({6.0f, 3.0f}); |
+ point = expected_out.add_touch_points(); |
+ point->set_x(6.0f / kDownScalingFactor); |
+ point->set_y(3.0f / kDownScalingFactor); |
+ EXPECT_CALL(mock_stub_, |
+ InjectTouchEvent(TouchPointCoordinateEqual(expected_out))); |
+ InjectTestTouchEvent(); |
+} |
+ |
+// Verify down scaling works. |
+TEST_F(TouchInputScalerTest, DownScaling) { |
+ const int kOutputDimension = 20; |
+ const int kDownScalingFactor = 2; |
+ SetInputDimensions(kOutputDimension * kDownScalingFactor, |
+ kOutputDimension * kDownScalingFactor); |
+ SetOutputDimensions(kOutputDimension, kOutputDimension); |
+ |
+ AddInputCoordinate({-20.0f, 10.0f}); |
+ TouchEvent expected_out; |
+ TouchEventPoint* point = expected_out.add_touch_points(); |
+ point->set_x(0.0f); |
+ point->set_y(10.0f / kDownScalingFactor); |
+ |
+ AddInputCoordinate({10.0f, -20.0f}); |
+ point = expected_out.add_touch_points(); |
+ point->set_x(10.0f / kDownScalingFactor); |
+ point->set_y(0.0f); |
+ |
+ AddInputCoordinate({6.0f, 80.0f}); |
+ point = expected_out.add_touch_points(); |
+ point->set_x(6.0f / kDownScalingFactor); |
+ point->set_y(kOutputDimension - 1); |
+ |
+ AddInputCoordinate({80.0f, 6.0f}); |
+ point = expected_out.add_touch_points(); |
+ point->set_x(kOutputDimension - 1); |
+ point->set_y(6.0f / kDownScalingFactor); |
+ |
+ EXPECT_CALL(mock_stub_, |
+ InjectTouchEvent(TouchPointCoordinateEqual(expected_out))); |
+ InjectTestTouchEvent(); |
+} |
+ |
+} // namespace remoting |