/**
* Swap the word representation with numeric's.
*
* @return $this
*/
protected function swap()
{
$this->date[0] = self::dayLookup[$this->date[0]];
$this->date[1] = self::monthLookup[$this->date[1]];
$year = $this->numerology->sum($this->date[2], true);
$this->date[2] = $year < 5000 ? 5000 + $year : $year;
return $this->date;
}
/**
* @test
* @expectedException InvalidArgumentException
*/
public function it_should_throw_an_exception_given_a_bad_argument()
{
$this->numerology->sum('Englis H');
}