iter\IterRewindableTest::testMakeRewindable PHP Method

    public function testMakeRewindable()
    {
        $range = makeRewindable('iter\\range');
        $map = makeRewindable('iter\\map');
        $this->assertRewindableEquals([3, 6, 9, 12, 15], $map(fn\operator('*', 3), $range(1, 5)));
    }