public function test_now()
{
$expected = OffsetDateTime::nowOf(Clock::systemDefaultZone());
$test = OffsetDateTime::now();
$diff = Math::abs($test->toLocalTime()->toNanoOfDay() - $expected->toLocalTime()->toNanoOfDay());
if ($diff >= 100000000) {
// may be date change
$expected = OffsetDateTime::nowOf(Clock::systemDefaultZone());
$test = OffsetDateTime::now();
$diff = Math::abs($test->toLocalTime()->toNanoOfDay() - $expected->toLocalTime()->toNanoOfDay());
}
$this->assertTrue($diff < 100000000);
// less than 0.1 secs
}
