Index: ui/events/gestures/velocity_calculator_unittest.cc |
diff --git a/ui/events/gestures/velocity_calculator_unittest.cc b/ui/events/gestures/velocity_calculator_unittest.cc |
deleted file mode 100644 |
index 4e892170d040b932c5fc1df1751c531e941a8285..0000000000000000000000000000000000000000 |
--- a/ui/events/gestures/velocity_calculator_unittest.cc |
+++ /dev/null |
@@ -1,148 +0,0 @@ |
-// 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 |