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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/test/scoped_mock_clock_override.h"
#include "base/build_time.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace {
// Disabled on Android due to flakes; see https://crbug.com/1474884.
#if BUILDFLAG(IS_ANDROID)
#define MAYBE_Time DISABLED_Time
#else
#define MAYBE_Time Time
#endif
TEST(ScopedMockClockOverrideTest, MAYBE_Time) {
// Choose a reference time that we know to be in the past but close to now.
Time build_time = GetBuildTime();
// Override is not active. All Now() methods should return a time greater than
// the build time.
EXPECT_LT(build_time, Time::Now());
EXPECT_GT(Time::Max(), Time::Now());
EXPECT_LT(build_time, Time::NowFromSystemTime());
EXPECT_GT(Time::Max(), Time::NowFromSystemTime());
{
// Set override.
ScopedMockClockOverride mock_clock;
EXPECT_NE(Time(), Time::Now());
Time start = Time::Now();
mock_clock.Advance(Seconds(1));
EXPECT_EQ(start + Seconds(1), Time::Now());
}
// All methods return real time again.
EXPECT_LT(build_time, Time::Now());
EXPECT_GT(Time::Max(), Time::Now());
EXPECT_LT(build_time, Time::NowFromSystemTime());
EXPECT_GT(Time::Max(), Time::NowFromSystemTime());
}
TEST(ScopedMockClockOverrideTest, TimeTicks) {
// Override is not active. All Now() methods should return a sensible value.
EXPECT_LT(TimeTicks::UnixEpoch(), TimeTicks::Now());
EXPECT_GT(TimeTicks::Max(), TimeTicks::Now());
EXPECT_LT(TimeTicks::UnixEpoch() + Days(365), TimeTicks::Now());
{
// Set override.
ScopedMockClockOverride mock_clock;
EXPECT_NE(TimeTicks(), TimeTicks::Now());
TimeTicks start = TimeTicks::Now();
mock_clock.Advance(Seconds(1));
EXPECT_EQ(start + Seconds(1), TimeTicks::Now());
}
// All methods return real ticks again.
EXPECT_LT(TimeTicks::UnixEpoch(), TimeTicks::Now());
EXPECT_GT(TimeTicks::Max(), TimeTicks::Now());
EXPECT_LT(TimeTicks::UnixEpoch() + Days(365), TimeTicks::Now());
}
TEST(ScopedMockClockOverrideTest, ThreadTicks) {
if (ThreadTicks::IsSupported()) {
ThreadTicks::WaitUntilInitialized();
// Override is not active. All Now() methods should return a sensible value.
ThreadTicks initial_thread_ticks = ThreadTicks::Now();
EXPECT_LE(initial_thread_ticks, ThreadTicks::Now());
EXPECT_GT(ThreadTicks::Max(), ThreadTicks::Now());
EXPECT_LT(ThreadTicks(), ThreadTicks::Now());
{
// Set override.
ScopedMockClockOverride mock_clock;
EXPECT_NE(ThreadTicks(), ThreadTicks::Now());
ThreadTicks start = ThreadTicks::Now();
mock_clock.Advance(Seconds(1));
EXPECT_EQ(start + Seconds(1), ThreadTicks::Now());
}
// All methods return real ticks again.
EXPECT_LE(initial_thread_ticks, ThreadTicks::Now());
EXPECT_GT(ThreadTicks::Max(), ThreadTicks::Now());
EXPECT_LT(ThreadTicks(), ThreadTicks::Now());
}
}
} // namespace
} // namespace base
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