| 1 | // Copyright 2013 The Flutter Authors. All rights reserved. |
|---|---|
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "flutter/fml/time/chrono_timestamp_provider.h" |
| 6 | |
| 7 | #include "flutter/runtime/dart_timestamp_provider.h" |
| 8 | |
| 9 | #include <thread> |
| 10 | |
| 11 | #include "gtest/gtest.h" |
| 12 | |
| 13 | namespace fml { |
| 14 | namespace { |
| 15 | |
| 16 | TEST(TimePoint, Control) { |
| 17 | EXPECT_LT(TimePoint::Min(), ChronoTicksSinceEpoch()); |
| 18 | EXPECT_GT(TimePoint::Max(), ChronoTicksSinceEpoch()); |
| 19 | } |
| 20 | |
| 21 | TEST(TimePoint, DartClockIsMonotonic) { |
| 22 | using namespace std::chrono_literals; |
| 23 | const auto t1 = flutter::DartTimelineTicksSinceEpoch(); |
| 24 | std::this_thread::sleep_for(d: 1us); |
| 25 | const auto t2 = flutter::DartTimelineTicksSinceEpoch(); |
| 26 | std::this_thread::sleep_for(d: 1us); |
| 27 | const auto t3 = flutter::DartTimelineTicksSinceEpoch(); |
| 28 | EXPECT_LT(TimePoint::Min(), t1); |
| 29 | EXPECT_LE(t1, t2); |
| 30 | EXPECT_LE(t2, t3); |
| 31 | EXPECT_LT(t3, TimePoint::Max()); |
| 32 | } |
| 33 | |
| 34 | } // namespace |
| 35 | } // namespace fml |
| 36 |