enzyme / loopy

        $cur_cycle = 0;

        $array = [1, 2, 3];

        Each::shallow()->begin($array, function($bag) use(&$expected, &$cur_cycle, $array) {

            $actual = $bag->value();

            $this->assertEquals($expected, $actual);

            $expected++;

            $actual = $bag->cycle();

            $this->assertEquals($cur_cycle, $actual);

            if ($expected > $array[count($array) - 1]) {

                $expected = 1;

                $cur_cycle++;

            }

        }, $cycles);

    }

    public function testStandardDeepBegin()

        $cur_cycle = 0;

        $array = [1, 2, 3, 4 => [4, 5, 6]];

        Each::deep()->begin($array, function($bag) use(&$expected, &$cur_cycle, $array) {

            $actual = $bag->value();

            $this->assertEquals($expected, $actual);

            $expected++;

            $actual = $bag->cycle();

            $this->assertEquals($cur_cycle, $actual);

            // Here the number six refers to the last item in the

            // array [1, 2, 3, 4 => [4, 5, 6]] if it were flattened.

            if ($expected > 6) {

                $expected = 1;

                $cur_cycle++;

            }

        }, $cycles);

    }

    public function testExtraDeepBeginMultipleCyclesAndFollowIndex()