tests: introduce ClockFixture
Identical to UnitTestTimeFixture, except that it does not derive
from BaseFixture, and thus does not depend on a global io_service.
Refs: #4528
Change-Id: Ia2e6c4835a1e461c73281e103109d5cc85be355e
diff --git a/tests/clock-fixture.cpp b/tests/clock-fixture.cpp
new file mode 100644
index 0000000..de55cf3
--- /dev/null
+++ b/tests/clock-fixture.cpp
@@ -0,0 +1,69 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2014-2019, Regents of the University of California,
+ * Arizona Board of Regents,
+ * Colorado State University,
+ * University Pierre & Marie Curie, Sorbonne University,
+ * Washington University in St. Louis,
+ * Beijing Institute of Technology,
+ * The University of Memphis.
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "tests/clock-fixture.hpp"
+
+namespace nfd {
+namespace tests {
+
+ClockFixture::ClockFixture(boost::asio::io_service& io)
+ : m_steadyClock(make_shared<time::UnitTestSteadyClock>())
+ , m_systemClock(make_shared<time::UnitTestSystemClock>())
+ , m_io(io)
+{
+ time::setCustomClocks(m_steadyClock, m_systemClock);
+}
+
+ClockFixture::~ClockFixture()
+{
+ time::setCustomClocks(nullptr, nullptr);
+}
+
+void
+ClockFixture::advanceClocks(time::nanoseconds tick, time::nanoseconds total)
+{
+ BOOST_ASSERT(tick > time::nanoseconds::zero());
+ BOOST_ASSERT(total >= time::nanoseconds::zero());
+
+ while (total > time::nanoseconds::zero()) {
+ auto t = std::min(tick, total);
+ m_steadyClock->advance(t);
+ m_systemClock->advance(t);
+ total -= t;
+
+ pollAfterClockTick();
+ }
+}
+
+void
+ClockFixture::pollAfterClockTick()
+{
+ if (m_io.stopped())
+ m_io.reset();
+ m_io.poll();
+}
+
+} // namespace tests
+} // namespace nfd