zircon/system/ulib/async/test/time_tests.cc

// Copyright 2018 The Fuchsia 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 <lib/async-testing/dispatcher_stub.h>
#include <lib/async/time.h>
#include <zxtest/zxtest.h>

namespace {

class FakeClockAsync : public async::DispatcherStub {
 public:
  zx::time Now() override { return current_time_; }
  void SetTime(zx::time t) { current_time_ = t; }

 private:
  zx::time current_time_;
};

TEST(TimeTests, time_telling_test) {
  FakeClockAsync dispatcher;
  EXPECT_EQ(0u, dispatcher.Now().get());
  EXPECT_EQ(0u, async_now(&dispatcher));

  dispatcher.SetTime(zx::time(4u));
  EXPECT_EQ(4u, dispatcher.Now().get());
  EXPECT_EQ(4u, async_now(&dispatcher));

  dispatcher.SetTime(zx::time(1853u));
  EXPECT_EQ(1853u, dispatcher.Now().get());
  EXPECT_EQ(1853u, async_now(&dispatcher));
}

}  // namespace