public function test_truncatedTo_normal()
 {
     $this->assertEquals($this->TEST_DATE_TIME->truncatedTo(CU::NANOS()), $this->TEST_DATE_TIME);
     $this->assertEquals($this->TEST_DATE_TIME->truncatedTo(CU::SECONDS()), $this->TEST_DATE_TIME->withNano(0));
     $this->assertEquals($this->TEST_DATE_TIME->truncatedTo(CU::DAYS()), $this->TEST_DATE_TIME->adjust(LocalTime::MIDNIGHT()));
 }