/**
* This method tests the "iterator" method.
*
* @dataProvider data_iterator
*/
public function test_iterator(array $provided, array $expected)
{
$p0 = ILinkedList\Type::make($provided[0], '\\Saber\\Data\\IInt32\\Type');
$e0 = $expected[0];
$this->assertInstanceOf('\\Saber\\Data\\ILinkedList\\Type', $p0);
$this->assertCount(count($e0), $p0->unbox());
$p1 = ILinkedList\Module::iterator($p0);
$e1 = 0;
$this->assertInstanceOf('\\Saber\\Data\\ILinkedList\\Iterator', $p1);
foreach ($p1 as $i => $item) {
$this->assertInstanceOf('\\Saber\\Data\\IInt32\\Type', $i);
$this->assertSame($e1, $i->unbox());
$this->assertInstanceOf('\\Saber\\Core\\Type', $item);
$this->assertSame($e0[$e1], $item->unbox());
$e1++;
}
}
/**
* This method returns a tuple of two (or more) linked lists after splitting a linked list of
* tuple groupings.
*
* @access public
* @static
* @param ILinkedList\Type $xss a linked list of tuple groupings
* @return ITuple\Type a tuple of two (or more) linked lists
*/
public static function unzip(ILinkedList\Type $xss) : ITuple\Type
{
$as = array();
$bs = array();
$xsi = ILinkedList\Module::iterator($xss);
foreach ($xsi as $i => $xs) {
$as[] = $xs->first();
$bs[] = $xs->second();
}
return ITuple\Type::box2(ILinkedList\Type::box($as), ILinkedList\Type::box($bs));
}