private function assertPeriod(Period $test, $y, $m, $d) { $this->assertEquals($test->getYears(), $y, "years"); $this->assertEquals($test->getMonths(), $m, "months"); $this->assertEquals($test->getDays(), $d, "days"); $this->assertEquals($test->toTotalMonths(), $y * 12 + $m, "totalMonths"); }