public function testToPairs()
{
$obj1 = new \stdClass();
$obj2 = new \stdClass();
$pairs = [[$obj1, 'foo'], [$obj2, 'bar'], [12, $obj1]];
$dict = Dictionary::fromPairs($pairs);
$this->assertEquals($pairs, $dict->toPairs());
}
public static function sortBy($array, $callback, $direction = 'ASC')
{
if (!is_callable($callback)) {
throw new \Twig_Error_Runtime(sprintf('Second argument of "sort_by" must be callable, but is "%s".', gettype($callback)));
}
if (!is_array($array) && !$array instanceof \Traversable) {
throw new \Twig_Error_Runtime(sprintf('First argument of "sort_by" must be array or Traversable, but is "%s".', gettype($array)));
}
if ($array instanceof \Traversable) {
if ($array instanceof Dictionary) {
$array = $array->getCopy();
} else {
$array = Dictionary::fromArray($array);
}
return $array->sortBy($callback, $direction);
} else {
$direction = strtoupper($direction) === 'DESC' ? SORT_DESC : SORT_ASC;
$order = self::map($array, $callback);
array_multisort($order, $direction, SORT_REGULAR, $array);
return $array;
}
}