public function test_that_keys_returns_traversable_keys_in_order()
{
$tree = new RedBlackSearchTree(new ComparableComparator());
foreach ($this->getWeekDays() as $value => $key) {
$tree->set($key, $value);
}
$count = 0;
/** @var WeekDay $key */
foreach ($tree->keys() as $key) {
if ($key->value() !== $count) {
throw new \Exception('Keys out of order');
}
$count++;
}
$this->assertSame(7, $count);
}
/**
* {@inheritdoc}
*/
public function getIterator() : Traversable
{
return $this->tree->keys();
}
/**
* {@inheritdoc}
*/
public function keys() : Traversable
{
return $this->tree->keys();
}
