Functional\Tests\MapTest::test PHP Method

    public function test()
    {
        $fn = function ($v, $k, $collection) {
            InvalidArgumentException::assertCollection($collection, __FUNCTION__, 3);
            return $k . $v;
        };
        $this->assertSame(['0value', '1value'], map($this->list, $fn));
        $this->assertSame(['0value', '1value'], map($this->listIterator, $fn));
        $this->assertSame(['k1' => 'k1val1', 'k2' => 'k2val2'], map($this->hash, $fn));
        $this->assertSame(['k1' => 'k1val1', 'k2' => 'k2val2'], map($this->hashIterator, $fn));
    }