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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/quic/quic_clock_skew_detector.h"
#include "base/time/time.h"
#include "net/third_party/quiche/src/quiche/quic/test_tools/mock_clock.h"
#include "net/third_party/quiche/src/quiche/quic/test_tools/mock_random.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace net::test {
namespace {
class QuicClockSkewDetectorTest : public ::testing::Test {
protected:
QuicClockSkewDetectorTest()
: start_ticks_time_(base::TimeTicks::Now()),
start_wall_time_(base::Time::Now()),
detector_(start_ticks_time_, start_wall_time_) {}
base::TimeTicks start_ticks_time_;
base::Time start_wall_time_;
QuicClockSkewDetector detector_;
};
TEST_F(QuicClockSkewDetectorTest, NoChange) {
EXPECT_FALSE(
detector_.ClockSkewDetected(start_ticks_time_, start_wall_time_));
}
TEST_F(QuicClockSkewDetectorTest, NoOffset) {
base::TimeDelta delta = base::Seconds(57);
EXPECT_FALSE(detector_.ClockSkewDetected(start_ticks_time_ + delta,
start_wall_time_ + delta));
}
TEST_F(QuicClockSkewDetectorTest, SmallOffset) {
base::TimeDelta delta = base::Milliseconds(57);
EXPECT_FALSE(
detector_.ClockSkewDetected(start_ticks_time_, start_wall_time_ + delta));
}
TEST_F(QuicClockSkewDetectorTest, ManySmallOffset) {
for (int i = 0; i < 10; ++i) {
base::TimeDelta delta = base::Milliseconds(500);
EXPECT_FALSE(detector_.ClockSkewDetected(start_ticks_time_,
start_wall_time_ + i * delta));
}
}
TEST_F(QuicClockSkewDetectorTest, LargeOffset) {
base::TimeDelta delta = base::Milliseconds(1001);
EXPECT_TRUE(
detector_.ClockSkewDetected(start_ticks_time_, start_wall_time_ + delta));
}
TEST_F(QuicClockSkewDetectorTest, LargeOffsetThenSmallOffset) {
base::TimeDelta delta = base::Milliseconds(1001);
EXPECT_TRUE(
detector_.ClockSkewDetected(start_ticks_time_, start_wall_time_ + delta));
base::TimeDelta small_delta = base::Milliseconds(571001);
EXPECT_FALSE(detector_.ClockSkewDetected(
start_ticks_time_ + small_delta, start_wall_time_ + delta + small_delta));
}
} // namespace
} // namespace net::test
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