1 files changed, 60 insertions, 0 deletions
diff --git a/chromium/ui/events/ozone/evdev/input_controller_evdev_unittest.cc b/chromium/ui/events/ozone/evdev/input_controller_evdev_unittest.cc
new file mode 100644
index 00000000000..02e8fa374de
--- /dev/null
+++ b/chromium/ui/events/ozone/evdev/input_controller_evdev_unittest.cc
@@ -0,0 +1,60 @@
+// Copyright 2020 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 "ui/events/ozone/evdev/input_controller_evdev.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace ui {
+
+TEST(InputControllerEvdevTest, AccelerationSuspension) {
+  InputControllerEvdev controller(nullptr, nullptr, nullptr);
+  controller.SetMouseAcceleration(true);
+  controller.SetPointingStickAcceleration(true);
+
+  EXPECT_TRUE(controller.input_device_settings_.mouse_acceleration_enabled);
+  EXPECT_TRUE(
+      controller.input_device_settings_.pointing_stick_acceleration_enabled);
+
+  // Suspending should disable the acceleration temporarily.
+  controller.SuspendMouseAcceleration();
+  EXPECT_FALSE(controller.input_device_settings_.mouse_acceleration_enabled);
+  EXPECT_FALSE(
+      controller.input_device_settings_.pointing_stick_acceleration_enabled);
+
+  // Resuming should enable it again.
+  controller.EndMouseAccelerationSuspension();
+  EXPECT_TRUE(controller.input_device_settings_.mouse_acceleration_enabled);
+  EXPECT_TRUE(
+      controller.input_device_settings_.pointing_stick_acceleration_enabled);
+}
+
+TEST(InputControllerEvdevTest, AccelerationChangeDuringSuspension) {
+  InputControllerEvdev controller(nullptr, nullptr, nullptr);
+  controller.SetMouseAcceleration(true);
+  controller.SetPointingStickAcceleration(true);
+
+  // Suspending should disable the acceleration temporarily.
+  controller.SuspendMouseAcceleration();
+  EXPECT_FALSE(controller.input_device_settings_.mouse_acceleration_enabled);
+  EXPECT_FALSE(
+      controller.input_device_settings_.pointing_stick_acceleration_enabled);
+
+  // Settings changes while suspended should not take effect immediately...
+  controller.SetMouseAcceleration(true);
+  controller.SetPointingStickAcceleration(true);
+  EXPECT_FALSE(controller.input_device_settings_.mouse_acceleration_enabled);
+  EXPECT_FALSE(
+      controller.input_device_settings_.pointing_stick_acceleration_enabled);
+
+  // ...instead being applied when the suspension ends.
+  controller.SetMouseAcceleration(false);
+  controller.SetPointingStickAcceleration(false);
+  controller.EndMouseAccelerationSuspension();
+  EXPECT_FALSE(controller.input_device_settings_.mouse_acceleration_enabled);
+  EXPECT_FALSE(
+      controller.input_device_settings_.pointing_stick_acceleration_enabled);
+}
+
+}  // namespace ui