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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "InputHub_test"
//#define LOG_NDEBUG 0
#include <linux/input.h>
#include <gtest/gtest.h>
#include <utils/Timers.h>
#include "InputDevice.h"
#include "InputHub.h"
// # of milliseconds to allow for timing measurements
#define TIMING_TOLERANCE_MS 25
#define MSC_ANDROID_TIME_SEC 0x6
#define MSC_ANDROID_TIME_USEC 0x7
namespace android {
namespace tests {
class MockInputDeviceNode : public InputDeviceNode {
virtual const std::string& getPath() const override { return mPath; }
virtual const std::string& getName() const override { return mName; }
virtual const std::string& getLocation() const override { return mLocation; }
virtual const std::string& getUniqueId() const override { return mUniqueId; }
virtual uint16_t getBusType() const override { return 0; }
virtual uint16_t getVendorId() const override { return 0; }
virtual uint16_t getProductId() const override { return 0; }
virtual uint16_t getVersion() const override { return 0; }
virtual bool hasKey(int32_t key) const { return false; }
virtual bool hasRelativeAxis(int axis) const { return false; }
virtual bool hasInputProperty(int property) const { return false; }
virtual int32_t getKeyState(int32_t key) const { return 0; }
virtual int32_t getSwitchState(int32_t sw) const { return 0; }
virtual const AbsoluteAxisInfo* getAbsoluteAxisInfo(int32_t axis) const { return nullptr; }
virtual status_t getAbsoluteAxisValue(int32_t axis, int32_t* outValue) const { return 0; }
virtual void vibrate(nsecs_t duration) {}
virtual void cancelVibrate(int32_t deviceId) {}
virtual void disableDriverKeyRepeat() {}
private:
std::string mPath = "/test";
std::string mName = "Test Device";
std::string mLocation = "test/0";
std::string mUniqueId = "test-id";
};
TEST(EvdevDeviceTest, testOverrideTime) {
auto node = std::make_shared<MockInputDeviceNode>();
auto device = std::make_unique<EvdevDevice>(node);
ASSERT_TRUE(device != nullptr);
// Send two timestamp override events before an input event.
nsecs_t when = 2ULL;
InputEvent msc1 = { when, EV_MSC, MSC_ANDROID_TIME_SEC, 1 };
InputEvent msc2 = { when, EV_MSC, MSC_ANDROID_TIME_USEC, 900000 };
// Send a key down and syn. Should get the overridden timestamp.
InputEvent keyDown = { when, EV_KEY, KEY_HOME, 1 };
InputEvent syn = { when, EV_SYN, SYN_REPORT, 0 };
// Send a key up, which should be at the reported timestamp.
InputEvent keyUp = { when, EV_KEY, KEY_HOME, 0 };
device->processInput(msc1, when);
device->processInput(msc2, when);
device->processInput(keyDown, when);
device->processInput(syn, when);
device->processInput(keyUp, when);
nsecs_t expectedWhen = s2ns(1) + us2ns(900000);
EXPECT_EQ(expectedWhen, keyDown.when);
EXPECT_EQ(expectedWhen, syn.when);
EXPECT_EQ(when, keyUp.when);
}
TEST(EvdevDeviceTest, testWrongClockCorrection) {
auto node = std::make_shared<MockInputDeviceNode>();
auto device = std::make_unique<EvdevDevice>(node);
ASSERT_TRUE(device != nullptr);
auto now = systemTime(SYSTEM_TIME_MONOTONIC);
// Input event that supposedly comes from 1 minute in the future. In
// reality, the timestamps would be much further off.
InputEvent event = { now + s2ns(60), EV_KEY, KEY_HOME, 1 };
device->processInput(event, now);
EXPECT_NEAR(now, event.when, ms2ns(TIMING_TOLERANCE_MS));
}
TEST(EvdevDeviceTest, testClockCorrectionOk) {
auto node = std::make_shared<MockInputDeviceNode>();
auto device = std::make_unique<EvdevDevice>(node);
ASSERT_TRUE(device != nullptr);
auto now = systemTime(SYSTEM_TIME_MONOTONIC);
// Input event from now, but will be reported as if it came early.
InputEvent event = { now, EV_KEY, KEY_HOME, 1 };
// event_time parameter is 11 seconds in the past, so it looks like we used
// the wrong clock.
device->processInput(event, now - s2ns(11));
EXPECT_NEAR(now, event.when, ms2ns(TIMING_TOLERANCE_MS));
}
} // namespace tests
} // namespace android
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