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// This file is part of CAF, the C++ Actor Framework. See the file LICENSE in
// the main distribution directory for license terms and copyright or visit
// https://github.com/actor-framework/actor-framework/blob/master/LICENSE.
#define CAF_SUITE telemetry.timer
#include "caf/telemetry/timer.hpp"
#include "core-test.hpp"
using namespace caf;
using namespace caf::telemetry;
CAF_TEST(timers observe how much time passes in a scope) {
dbl_histogram h1{1, 2, 4, 8};
MESSAGE("timers call observe() with the measured time");
{
timer t{&h1};
CHECK_EQ(t.histogram_ptr(), &h1);
CHECK_GT(t.started().time_since_epoch().count(), 0);
}
CHECK_GT(h1.sum(), 0.0);
MESSAGE("timers constructed with a nullptr have no effect");
{
timer t{nullptr};
CHECK_EQ(t.histogram_ptr(), nullptr);
}
}
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