$v) { $tmp[] = "$k => $v"; } Assert::same([ '0 => Nette', '1 => Framework', ], $tmp); }); test('stdClass', function () { $arr = (object) ['Nette', 'Framework']; $tmp = []; foreach (new Iterators\CachingIterator($arr) as $k => $v) { $tmp[] = "$k => $v"; } Assert::same([ '0 => Nette', '1 => Framework', ], $tmp); }); test('iteratorAggregate', function () { $arr = new ArrayObject(['Nette', 'Framework']); $tmp = []; foreach (new Iterators\CachingIterator($arr) as $k => $v) { $tmp[] = "$k => $v"; } Assert::same([ '0 => Nette', '1 => Framework', ], $tmp); }); test('iterator', function () { $arr = new ArrayObject(['Nette', 'Framework']); $tmp = []; foreach (new Iterators\CachingIterator($arr->getIterator()) as $k => $v) { $tmp[] = "$k => $v"; } Assert::same([ '0 => Nette', '1 => Framework', ], $tmp); }); test('simpleXMLElement', function () { $arr = new SimpleXMLElement('NetteFramework'); $tmp = []; foreach (new Iterators\CachingIterator($arr) as $k => $v) { $tmp[] = "$k => $v"; } Assert::same([ 'item => Nette', 'item => Framework', ], $tmp); }); test('object', function () { Assert::exception(function () { $arr = dir('.'); foreach (new Iterators\CachingIterator($arr) as $k => $v); }, TypeError::class, null); }); class RecursiveIteratorAggregate implements IteratorAggregate { public function getIterator(): Traversable { return new ArrayObject(['Nette', 'Framework']); } } test('recursive IteratorAggregate', function () { $arr = new RecursiveIteratorAggregate; $tmp = []; foreach (new Iterators\CachingIterator($arr) as $k => $v) { $tmp[] = "$k => $v"; } Assert::same([ '0 => Nette', '1 => Framework', ], $tmp); });