/**
* @param string $from
* @param string $to
* @return array
* @throws InvalidArgumentException
*/
public function transform($from, $to)
{
if (WordTransformValidator::isInvalid($from, $to)) {
throw new InvalidArgumentException('Invalid the input arguments');
}
$graph = $this->buildGraph();
return (new BreadthFirstSearchAlgorithm())->traversal($graph, $from, $to);
}
public function testInvalidWords()
{
$this->assertTrue(WordTransformValidator::isInvalid('гид', 777));
$this->assertTrue(WordTransformValidator::isInvalid('роман', 'рассказ'));
}
