Functional\Tests\PartitionTest::test PHP Method

    public function test()
    {
        $fn = function ($v, $k, $collection) {
            InvalidArgumentException::assertCollection($collection, __FUNCTION__, 3);
            return is_int($k) ? $k % 2 == 0 : $v[3] % 2 == 0;
        };
        $this->assertSame([[0 => 'value1', 2 => 'value3'], [1 => 'value2']], partition($this->list, $fn));
        $this->assertSame([[0 => 'value1', 2 => 'value3'], [1 => 'value2']], partition($this->listIterator, $fn));
        $this->assertSame([['k2' => 'val2'], ['k1' => 'val1', 'k3' => 'val3']], partition($this->hash, $fn));
        $this->assertSame([['k2' => 'val2'], ['k1' => 'val1', 'k3' => 'val3']], partition($this->hashIterator, $fn));
    }