private function getTransformerCollectionMock(array $transformers = null)
{
$coll = $this->getMockBuilder('MessagePack\\TypeTransformer\\Collection')->getMock();
if ($transformers) {
$coll->expects($this->any())->method('find')->willReturn($transformers[0]);
$coll->expects($this->any())->method('match')->willReturn($transformers[0]);
}
return $coll;
}