public function testToArrayKeys()
{
$in = $out = array();
foreach ($this->toArrayKeyProvider() as $call) {
$in[] = $call[0];
$out[] = $call[1];
}
$this->assertSame($out, FormUtil::toArrayKeys($in));
}
/**
* @param array $array
*
* @return array
*
* @throws UnexpectedTypeException if the given value is not an array
*/
public function transform($array)
{
if (null === $array) {
return array();
}
if (!is_array($array)) {
throw new UnexpectedTypeException($array, 'array');
}
return FormUtil::toArrayKeys($array);
}
