iter\IterRewindableTest::testRewindableVariants PHP Method

    public function testRewindableVariants()
    {
        $this->assertRewindableEquals([1, 2, 3, 4, 5], rewindable\range(1, 5));
        $this->assertRewindableEquals([3, 6, 9, 12, 15], rewindable\map(fn\operator('*', 3), rewindable\range(1, 5)));
        $this->assertRewindableEquals(['a' => 1, 'b' => 2, 'c' => 3], rewindable\mapKeys('strtolower', ['A' => 1, 'B' => 2, 'C' => 3]), true);
        $this->assertRewindableEquals([2 => 1, 4 => 2, 6 => 3, 8 => 4], rewindable\reindex(fn\operator('*', 2), [1, 2, 3, 4]), true);
        $this->assertRewindableEquals([-5, -4, -3, -2, -1], rewindable\filter(fn\operator('<', 0), rewindable\range(-5, 5)));
        $this->assertRewindableEquals([[0, 5], [1, 4], [2, 3], [3, 2], [4, 1], [5, 0]], rewindable\zip(rewindable\range(0, 5), rewindable\range(5, 0, -1)));
        $this->assertRewindableEquals([1, 3, 6, 10, 15], rewindable\reductions(fn\operator('+'), rewindable\range(1, 5), 0));
        $this->assertRewindableEquals([5 => 0, 4 => 1, 3 => 2, 2 => 3, 1 => 4, 0 => 5], rewindable\zipKeyValue(rewindable\range(5, 0, -1), rewindable\range(0, 5)), true);
        $this->assertRewindableEquals([1, 2, 3, 4, 5, 6, 7, 8, 9], rewindable\chain(rewindable\range(1, 3), rewindable\range(4, 6), rewindable\range(7, 9)));
        $this->assertRewindableEquals([5, 6, 7, 8, 9], rewindable\slice(rewindable\range(0, 9), 5));
        $this->assertRewindableEquals([1, 2, 3], rewindable\take(3, [1, 2, 3, 4, 5]));
        $this->assertRewindableEquals([4, 5], rewindable\drop(3, [1, 2, 3, 4, 5]));
        $this->assertRewindableEquals([1, 1, 1, 1, 1], rewindable\repeat(1, 5));
        $this->assertRewindableEquals(['b', 'd', 'f'], rewindable\values(['a' => 'b', 'c' => 'd', 'e' => 'f']), true);
        $this->assertRewindableEquals(['a', 'c', 'e'], rewindable\keys(['a' => 'b', 'c' => 'd', 'e' => 'f']), true);
        $this->assertRewindableEquals([3, 1, 4], rewindable\takeWhile(fn\operator('>', 0), [3, 1, 4, -1, 5]));
        $this->assertRewindableEquals([-1, 5], rewindable\dropWhile(fn\operator('>', 0), [3, 1, 4, -1, 5]));
        $this->assertRewindableEquals([1, 2, 3, 4, 5], rewindable\flatten([[1, [[2, [[]], 3], 4]], 5]));
        $this->assertRewindableEquals([1 => 'a', 2 => 'b', 3 => 'c'], rewindable\flip(['a' => 1, 'b' => 2, 'c' => 3]), true);
        $this->assertRewindableEquals([['a' => 1, 'b' => 2], ['c' => 3, 'd' => 4], ['e' => 5]], rewindable\chunk(['a' => 1, 'b' => 2, 'c' => 3, 'd' => 4, 'e' => 5], 2), true);
        $this->assertRewindableEquals([[1, 3, 5], [1, 3, 6], [1, 4, 5], [1, 4, 6], [2, 3, 5], [2, 3, 6], [2, 4, 5], [2, 4, 6]], rewindable\product([1, 2], [3, 4], [5, 6]));
    }