Move code that doesn't depend on PPAPI out of remoting/client/plugin

remoting/client/plugin/touch_input_scaler_unittest.cc

-// 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 "remoting/protocol/protocol_mock_objects.h"
-#include "remoting/protocol/test_event_matchers.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-using ::testing::_;
-using ::testing::AllOf;
-using ::testing::PrintToString;
-
-namespace remoting {
-
-using protocol::MockInputStub;
-using protocol::TouchEvent;
-using protocol::TouchEventPoint;
-using protocol::test::EqualsTouchPointCoordinates;
-using protocol::test::EqualsTouchPointRadii;
-
-namespace {
-
-const float kDefaultRadius = 30.0f;
-const float kDefaultXCoord = 1.0f;
-const float kDefaultYCoord = 1.0f;
-
-struct PointInfo {
-  PointInfo(float x, float y)
-      : PointInfo(x, y, kDefaultRadius, kDefaultRadius) {}
-  PointInfo(float x, float y, float radius_x, float radius_y)
-      : x(x), y(y), radius_x(radius_x), radius_y(radius_y) {}
-
-  float x;
-  float y;
-  float radius_x;
-  float radius_y;
-};
-
-const PointInfo kDefaultPointInfo = {kDefaultXCoord,
-                                     kDefaultYCoord,
-                                     kDefaultRadius,
-                                     kDefaultRadius};
-
-}  // namespace
-
-class TouchInputScalerTest : public ::testing::Test {
- protected:
-  TouchInputScalerTest() : touch_input_scaler_(&mock_stub_) {}
-
-  void AddInputCoordinate(const PointInfo& point_info) {
-    point_infos_.push_back(point_info);
-  }
-
-  void AddDefaultTestPoint() { point_infos_.push_back(kDefaultPointInfo); }
-
-  void InjectTestTouchEvent() {
-    TouchEvent e;
-    e.set_event_type(TouchEvent::TOUCH_POINT_MOVE);
-
-    uint32_t id = 1;
-    for (const PointInfo& point_info : point_infos_) {
-      TouchEventPoint* point = e.add_touch_points();
-      point->set_id(id++);
-      point->set_x(point_info.x);
-      point->set_y(point_info.y);
-      point->set_radius_x(point_info.radius_x);
-      point->set_radius_y(point_info.radius_y);
-    }
-
-    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<PointInfo> point_infos_;
-
-  DISALLOW_COPY_AND_ASSIGN(TouchInputScalerTest);
-};
-
-// 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 or 0.
-TEST_F(TouchInputScalerTest, NoDimensionsSet) {
-  AddDefaultTestPoint();
-  EXPECT_CALL(mock_stub_, InjectTouchEvent(_)).Times(0);
-  InjectTestTouchEvent();
-}
-
-TEST_F(TouchInputScalerTest, BothDimensionsZero) {
-  SetInputDimensions(0, 0);
-  SetOutputDimensions(0, 0);
-  AddDefaultTestPoint();
-  EXPECT_CALL(mock_stub_, InjectTouchEvent(_)).Times(0);
-  InjectTestTouchEvent();
-}
-
-TEST_F(TouchInputScalerTest, SetOnlyInputDimensions) {
-  SetInputDimensions(50, 60);
-  AddDefaultTestPoint();
-  EXPECT_CALL(mock_stub_, InjectTouchEvent(_)).Times(0);
-  InjectTestTouchEvent();
-}
-
-TEST_F(TouchInputScalerTest, SetOnlyOutputDimensions) {
-  SetOutputDimensions(50, 60);
-  AddDefaultTestPoint();
-  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(EqualsTouchPointCoordinates(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(EqualsTouchPointCoordinates(expected_out)));
-  InjectTestTouchEvent();
-}
-
-TEST_F(TouchInputScalerTest, ClampingMultiplePointsNoScaling) {
-  SetInputDimensions(50, 60);
-  SetOutputDimensions(50, 60);
-
-  AddInputCoordinate({-1.0f, 1.0f});  // Fall off left.
-  TouchEvent expected_out;
-  TouchEventPoint* point = expected_out.add_touch_points();
-  point->set_x(0.0f);
-  point->set_y(1.0f);
-
-  AddInputCoordinate({100.0f, 1.0f});  // Fall off right.
-  point = expected_out.add_touch_points();
-  point->set_x(49.0f);
-  point->set_y(1.0f);
-
-  AddInputCoordinate({20.0f, 15.0f});  // Should not be clamped.
-  point = expected_out.add_touch_points();
-  point->set_x(20.0f);
-  point->set_y(15.0f);
-
-  AddInputCoordinate({3.0f, -1.0f});  // Fall off above.
-  point = expected_out.add_touch_points();
-  point->set_x(3.0f);
-  point->set_y(0.0f);
-
-  AddInputCoordinate({10.0f, 200.0f});  // Fall off below.
-  point = expected_out.add_touch_points();
-  point->set_x(10.0f);
-  point->set_y(59.0f);
-
-  EXPECT_CALL(mock_stub_,
-              InjectTouchEvent(EqualsTouchPointCoordinates(expected_out)));
-  InjectTestTouchEvent();
-}
-
-// Verify up-scaling works. All coordinates should fall inside the output
-// dimensions after scaling.
-TEST_F(TouchInputScalerTest, UpScalingNoClamping) {
-  SetInputDimensions(20, 20);
-  SetOutputDimensions(40, 40);
-
-  AddInputCoordinate({1.0f, 1.0f});
-  TouchEvent expected_out;
-  TouchEventPoint* point = expected_out.add_touch_points();
-  point->set_x(2.0f);
-  point->set_y(2.0f);
-
-  AddInputCoordinate({1.2f, 4.2f});
-  point = expected_out.add_touch_points();
-  point->set_x(2.4f);
-  point->set_y(8.4f);
-
-  EXPECT_CALL(mock_stub_,
-              InjectTouchEvent(EqualsTouchPointCoordinates(expected_out)));
-  InjectTestTouchEvent();
-}
-
-// Verify up-scaling works with clamping.
-TEST_F(TouchInputScalerTest, UpScalingWithClamping) {
-  SetInputDimensions(20, 20);
-  SetOutputDimensions(40, 40);
-
-  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(EqualsTouchPointCoordinates(expected_out)));
-  InjectTestTouchEvent();
-}
-
-// Verify down scaling works. All coordinates should fall inside the output
-// dimensions after scaling.
-TEST_F(TouchInputScalerTest, DownScalingNoClamping) {
-  SetInputDimensions(40, 40);
-  SetOutputDimensions(20, 20);
-
-  AddInputCoordinate({2.0f, 2.0f});
-  TouchEvent expected_out;
-  TouchEventPoint* point = expected_out.add_touch_points();
-  point->set_x(1.0f);
-  point->set_y(1.0f);
-
-  AddInputCoordinate({6.0f, 3.0f});
-  point = expected_out.add_touch_points();
-  point->set_x(3.0);
-  point->set_y(1.5f);
-
-  EXPECT_CALL(mock_stub_,
-              InjectTouchEvent(EqualsTouchPointCoordinates(expected_out)));
-  InjectTestTouchEvent();
-}
-
-// Verify down scaling works with clamping.
-TEST_F(TouchInputScalerTest, DownScalingWithClamping) {
-  SetInputDimensions(40, 40);
-  SetOutputDimensions(20, 20);
-
-  AddInputCoordinate({-20.0f, 10.0f});
-  TouchEvent expected_out;
-  TouchEventPoint* point = expected_out.add_touch_points();
-  point->set_x(0.0f);
-  point->set_y(5.0f);
-
-  AddInputCoordinate({10.0f, -20.0f});
-  point = expected_out.add_touch_points();
-  point->set_x(5.0f);
-  point->set_y(0.0f);
-
-  AddInputCoordinate({6.0f, 80.0f});
-  point = expected_out.add_touch_points();
-  point->set_x(3.0f);
-  point->set_y(19.0f);
-
-  AddInputCoordinate({80.0f, 6.0f});
-  point = expected_out.add_touch_points();
-  point->set_x(19.0f);
-  point->set_y(3.0f);
-
-  EXPECT_CALL(mock_stub_,
-              InjectTouchEvent(EqualsTouchPointCoordinates(expected_out)));
-  InjectTestTouchEvent();
-}
-
-// Verify that the radii are up-scaled.
-TEST_F(TouchInputScalerTest, UpScaleRadii) {
-  SetInputDimensions(20, 20);
-  SetOutputDimensions(40, 40);
-
-  AddInputCoordinate({0.0f, 0.0f, 1.0f, 2.0f});
-  TouchEvent expected_out;
-  TouchEventPoint* point = expected_out.add_touch_points();
-  point->set_radius_x(2.0f);
-  point->set_radius_y(4.0f);
-
-  EXPECT_CALL(mock_stub_,
-              InjectTouchEvent(EqualsTouchPointRadii(expected_out)));
-  InjectTestTouchEvent();
-}
-
-// Verify that the radii are down-scaled.
-TEST_F(TouchInputScalerTest, DownScaleRadii) {
-  SetInputDimensions(20, 20);
-  SetOutputDimensions(10, 10);
-
-  AddInputCoordinate({0.0f, 0.0f, 5.0f, 4.0f});
-  TouchEvent expected_out;
-  TouchEventPoint* point = expected_out.add_touch_points();
-  point->set_radius_x(2.5f);
-  point->set_radius_y(2.0f);
-
-  EXPECT_CALL(mock_stub_,
-              InjectTouchEvent(EqualsTouchPointRadii(expected_out)));
-  InjectTestTouchEvent();
-}
-
-// Verify that up-scaling with clamping works for x,y coordinates and radii all
-// work together.
-TEST_F(TouchInputScalerTest, UpScaleCoordinatesAndRadii) {
-  SetInputDimensions(20, 20);
-  SetOutputDimensions(40, 40);
-
-  AddInputCoordinate({5.0f, 12.0f, 3.0f, 2.0f});
-  TouchEvent expected_out;
-  TouchEventPoint* point = expected_out.add_touch_points();
-  point->set_x(10.0f);
-  point->set_y(24.0f);
-  point->set_radius_x(6.0f);
-  point->set_radius_y(4.0f);
-
-  // Make sure clamping and scaling all work.
-  AddInputCoordinate({22.0f, -1.0f, 8.0f, 3.0f});
-  point = expected_out.add_touch_points();
-  point->set_x(39.0f);
-  point->set_y(0.0f);
-  point->set_radius_x(16.0f);
-  point->set_radius_y(6.0f);
-
-  EXPECT_CALL(mock_stub_,
-              InjectTouchEvent(AllOf(EqualsTouchPointCoordinates(expected_out),
-                                     EqualsTouchPointRadii(expected_out))));
-  InjectTestTouchEvent();
-}
-
-// Verify that down-scaling with clamping works for x,y coordinates and radii
-// all work together.
-TEST_F(TouchInputScalerTest, DownScaleCoordinatesAndRadii) {
-  SetInputDimensions(60, 60);
-  SetOutputDimensions(20, 20);
-
-  AddInputCoordinate({50.0f, 24.0f, 10.0f, 9.0f});
-  TouchEvent expected_out;
-  TouchEventPoint* point = expected_out.add_touch_points();
-  point->set_x(16.666f);
-  point->set_y(8.0f);
-  point->set_radius_x(3.333f);
-  point->set_radius_y(3.0f);
-
-  // Make sure clamping and scaling all work.
-  AddInputCoordinate({70.0f, 82.0f, 8.0f, 3.0f});
-  point = expected_out.add_touch_points();
-  point->set_x(19.0f);
-  point->set_y(19.0f);
-  point->set_radius_x(2.666f);
-  point->set_radius_y(1.0f);
-
-  EXPECT_CALL(mock_stub_,
-              InjectTouchEvent(AllOf(EqualsTouchPointCoordinates(expected_out),
-                                     EqualsTouchPointRadii(expected_out))));
-  InjectTestTouchEvent();
-}
-
-}  // namespace remoting