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#include <opentracing/util.h>
#include <cmath>
#include <cstdlib> // Work around to https://stackoverflow.com/a/30084734.
using namespace opentracing;
#define CATCH_CONFIG_MAIN
#include <opentracing/catch2/catch.hpp>
TEST_CASE("convert_time_point") {
SECTION("We can convert between time points of different clocks") {
// Check that converting from a system_clock time_point to a steady_clock
// time point and then back again produces approximately the same
// system_clock time_point.
auto t1 = SystemClock::now();
auto t2 = convert_time_point<SteadyClock>(t1);
auto t3 = convert_time_point<SystemClock>(t2);
auto difference = std::abs(
std::chrono::duration_cast<std::chrono::microseconds>(t3 - t1).count());
CHECK(difference < 100);
}
SECTION("Converting times from the same clock gives the identity") {
auto t = SystemClock::now();
CHECK(t == convert_time_point<SystemClock>(t));
}
}
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