/**
* Converts instance of \ArrayAccess to key => value array entry
*
* @param \ArrayAccess $object
*
* @return array|null
* @throws \Prophecy\Exception\InvalidArgumentException
*/
private function convertArrayAccessToEntry(\ArrayAccess $object)
{
if (!$this->key instanceof ExactValueToken) {
throw new InvalidArgumentException(sprintf('You can only use exact value tokens to match key of ArrayAccess object' . PHP_EOL . 'But you used `%s`.', $this->key));
}
$key = $this->key->getValue();
return $object->offsetExists($key) ? array($key => $object[$key]) : array();
}
