Remove old Aura Gesture Detection Pipeline.

ui/events/gestures/velocity_calculator_unittest.cc

-// Copyright (c) 2012 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 "base/basictypes.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "ui/events/gestures/velocity_calculator.h"
-
-namespace ui {
-namespace test {
-
-namespace {
-
-static void AddPoints(VelocityCalculator* velocity_calculator,
-                      float x_increment,
-                      float y_increment,
-                      float time_increment_seconds,
-                      int num_points) {
-  float x = 0;
-  float y = 0;
-  double time = 0;
-
-  for (int i = 0; i < num_points; ++i) {
-    velocity_calculator->PointSeen(x, y, time);
-    x += x_increment;
-    y += y_increment;
-    time += time_increment_seconds * 1000000;
-  }
-}
-
-}  // namespace
-
-// Test that the velocity returned is reasonable
-TEST(VelocityCalculatorTest, ReturnsReasonableVelocity) {
-  VelocityCalculator velocity_calculator(5);
-  AddPoints(&velocity_calculator, 10, -10, 1, 7);
-
-  EXPECT_GT(velocity_calculator.XVelocity(), 9.9);
-  EXPECT_LT(velocity_calculator.XVelocity(), 10.1);
-  EXPECT_GT(velocity_calculator.YVelocity(), -10.1);
-  EXPECT_LT(velocity_calculator.YVelocity(), -9.9);
-
-  velocity_calculator.PointSeen(9, -11, 5500000);
-  velocity_calculator.PointSeen(21, -19, 6000000);
-  velocity_calculator.PointSeen(30, -32, 6500000);
-  velocity_calculator.PointSeen(38, -40, 7000000);
-  velocity_calculator.PointSeen(50, -51, 7500000);
-
-  EXPECT_GT(velocity_calculator.XVelocity(), 19);
-  EXPECT_LT(velocity_calculator.XVelocity(), 21);
-  EXPECT_GT(velocity_calculator.YVelocity(), -21);
-  EXPECT_LT(velocity_calculator.YVelocity(), -19);
-
-  // Significantly larger difference in position
-  velocity_calculator.PointSeen(70, -70, 8000000);
-
-  EXPECT_GT(velocity_calculator.XVelocity(), 20);
-  EXPECT_LT(velocity_calculator.XVelocity(), 25);
-  EXPECT_GT(velocity_calculator.YVelocity(), -25);
-  EXPECT_LT(velocity_calculator.YVelocity(), -20);
-}
-
-TEST(VelocityCalculatorTest, IsAccurateWithLargeTimes) {
-  VelocityCalculator velocity_calculator(5);
-  int64 start_time = 0;
-  velocity_calculator.PointSeen(9, -11, start_time);
-  velocity_calculator.PointSeen(21, -19, start_time + 8);
-  velocity_calculator.PointSeen(30, -32, start_time + 16);
-  velocity_calculator.PointSeen(38, -40, start_time + 24);
-  velocity_calculator.PointSeen(50, -51, start_time + 32);
-
-  EXPECT_GT(velocity_calculator.XVelocity(), 1230000);
-  EXPECT_LT(velocity_calculator.XVelocity(), 1260000);
-  EXPECT_GT(velocity_calculator.YVelocity(), -1270000);
-  EXPECT_LT(velocity_calculator.YVelocity(), -1240000);
-
-  start_time = 1223372036800000000LL;
-  velocity_calculator.PointSeen(9, -11, start_time);
-  velocity_calculator.PointSeen(21, -19, start_time + 8);
-  velocity_calculator.PointSeen(30, -32, start_time + 16);
-  velocity_calculator.PointSeen(38, -40, start_time + 24);
-  velocity_calculator.PointSeen(50, -51, start_time + 32);
-
-  EXPECT_GT(velocity_calculator.XVelocity(), 1230000);
-  EXPECT_LT(velocity_calculator.XVelocity(), 1260000);
-  EXPECT_GT(velocity_calculator.YVelocity(), -1270000);
-  EXPECT_LT(velocity_calculator.YVelocity(), -124000);
-}
-
-// Check that the right values are returned for insufficient data.
-TEST(VelocityCalculatorTest, RequiresEnoughData) {
-  VelocityCalculator velocity_calculator(3);
-  int64 start_time = 0;
-
-  // Zero points is zero velocity.
-  EXPECT_EQ(velocity_calculator.XVelocity(), 0);
-  EXPECT_EQ(velocity_calculator.YVelocity(), 0);
-
-  // 1point is still zero velocity.
-  velocity_calculator.PointSeen(10, 10, start_time);
-  EXPECT_EQ(velocity_calculator.XVelocity(), 0);
-  EXPECT_EQ(velocity_calculator.YVelocity(), 0);
-
-  // 2 points has non-zero velocity.
-  velocity_calculator.PointSeen(20, 20, start_time + 5);
-  EXPECT_FLOAT_EQ(velocity_calculator.XVelocity(), 1923077.f);
-  EXPECT_FLOAT_EQ(velocity_calculator.YVelocity(), 1923077.f);
-
-  velocity_calculator.PointSeen(30, 30, start_time + 10);
-  velocity_calculator.PointSeen(40, 40, start_time + 15);
-  EXPECT_FLOAT_EQ(velocity_calculator.XVelocity(), 2000000.f);
-  EXPECT_FLOAT_EQ(velocity_calculator.YVelocity(), 2000000.f);
-
-  velocity_calculator.PointSeen(50, 50, start_time + 20);
-  EXPECT_FLOAT_EQ(velocity_calculator.XVelocity(), 2000000.f);
-  EXPECT_FLOAT_EQ(velocity_calculator.YVelocity(), 2000000.f);
-}
-
-// Ensures ClearHistory behaves correctly
-TEST(VelocityCalculatorTest, ClearsHistory) {
-  VelocityCalculator velocity_calculator(5);
-  AddPoints(&velocity_calculator, 10, -10, 1, 7);
-
-  EXPECT_FLOAT_EQ(velocity_calculator.XVelocity(), 10.f);
-  EXPECT_FLOAT_EQ(velocity_calculator.YVelocity(), -10.f);
-
-  velocity_calculator.ClearHistory();
-
-  EXPECT_EQ(velocity_calculator.XVelocity(), 0);
-  EXPECT_EQ(velocity_calculator.YVelocity(), 0);
-}
-
-// Ensure data older than the buffer size is ignored
-TEST(VelocityCalculatorTest, IgnoresOldData) {
-  VelocityCalculator velocity_calculator(5);
-  AddPoints(&velocity_calculator, 10, -10, 1, 7);
-
-  EXPECT_FLOAT_EQ(velocity_calculator.XVelocity(), 10.f);
-  EXPECT_FLOAT_EQ(velocity_calculator.YVelocity(), -10.f);
-
-  AddPoints(&velocity_calculator, 0, 0, 1, 5);
-
-  EXPECT_FLOAT_EQ(velocity_calculator.XVelocity(), 0);
-  EXPECT_FLOAT_EQ(velocity_calculator.YVelocity(), 0);
-}
-
-}  // namespace test
-}  // namespace ui