Pinq\Tests\Integration\Traversable\IteratorSchemeTest::testThatMaintainsCorrectSameIteratorScheme PHP Метод

    public function testThatMaintainsCorrectSameIteratorScheme(\Pinq\ITraversable $traversable, array $data)
    {
        $originalScheme = $traversable->getIteratorScheme();
        $queriedTraversable = $traversable->where(function () {
            throw new \Exception('This should never be executed');
        })->append([])->difference([])->except([])->groupBy(function () {
            return 1;
        })->groupJoin([])->on(function () {
            return true;
        })->to(function () {
            return 1;
        })->indexBy(function () {
            return 1;
        })->intersect([])->join([])->on(function () {
            return true;
        })->to(function () {
            return 1;
        })->keys()->orderBy(function () {
            return 1;
        }, \Pinq\Direction::ASCENDING)->thenByDescending(function () {
            return 1;
        })->reindex()->select(function () {
            return 1;
        })->selectMany(function () {
            return [];
        })->skip(1)->take(5)->union([])->where(function () {
            return true;
        })->whereIn([]);
        //Well that was fun
        $this->assertSame($originalScheme, $queriedTraversable->getIteratorScheme());
    }