Pinq\Tests\Integration\Traversable\GroupJoinTest::testThatGroupJoinWithDefaultOperatesCorrectly PHP Метод

    public function testThatGroupJoinWithDefaultOperatesCorrectly(\Pinq\ITraversable $traversable, array $data)
    {
        $traversable = $traversable->groupJoin([1, 4, 9, 16, 25, 36, 49, 64, 81, 100])->on(function ($outer, $inner) {
            return $outer % 2 === 0 && $outer * $outer >= $inner;
        })->withDefault('<ODD>')->to(function ($outer, \Pinq\ITraversable $innerGroup) {
            return $outer . ':' . $innerGroup->implode(',');
        });
        $this->assertMatches($traversable, ['1:<ODD>', '2:1,4', '3:<ODD>', '4:1,4,9,16', '5:<ODD>', '6:1,4,9,16,25,36', '7:<ODD>', '8:1,4,9,16,25,36,49,64', '9:<ODD>', '10:1,4,9,16,25,36,49,64,81,100']);
    }