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✏️ Editing: MockInputOutput.php

<?php

declare(strict_types=1);

/**
 * This file is part of CodeIgniter 4 framework.
 *
 * (c) CodeIgniter Foundation <admin@codeigniter.com>
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace CodeIgniter\Test\Mock;

use CodeIgniter\CLI\InputOutput;
use CodeIgniter\Test\Filters\CITestStreamFilter;
use CodeIgniter\Test\PhpStreamWrapper;
use InvalidArgumentException;
use LogicException;

final class MockInputOutput extends InputOutput
{
    /**
     * String to be entered by the user.
     *
     * @var list<string>
     */
    private array $inputs = [];

/**
     * Output lines.
     *
     * @var         array<int, string>
     * @phpstan-var list<string>
     */
    private array $outputs = [];

/**
     * Sets user inputs.
     *
     * @param         array<int, string> $inputs
     * @phpstan-param list<string>       $inputs
     */
    public function setInputs(array $inputs): void
    {
        $this->inputs = $inputs;
    }

/**
     * Gets the item from the output array.
     *
     * @param int|null $index The output array index. If null, returns all output
     *                        string. If negative int, returns the last $index-th
     *                        item.
     */
    public function getOutput(?int $index = null): string
    {
        if ($index === null) {
            return implode('', $this->outputs);
        }

if (array_key_exists($index, $this->outputs)) {
            return $this->outputs[$index];
        }

if ($index < 0) {
            $i = count($this->outputs) + $index;

if (array_key_exists($i, $this->outputs)) {
                return $this->outputs[$i];
            }
        }

throw new InvalidArgumentException(
            'No such index in output: ' . $index . ', the last index is: '
            . (count($this->outputs) - 1)
        );
    }

/**
     * Returns the outputs array.
     */
    public function getOutputs(): array
    {
        return $this->outputs;
    }

private function addStreamFilters(): void
    {
        CITestStreamFilter::registration();
        CITestStreamFilter::addOutputFilter();
        CITestStreamFilter::addErrorFilter();
    }

private function removeStreamFilters(): void
    {
        CITestStreamFilter::removeOutputFilter();
        CITestStreamFilter::removeErrorFilter();
    }

public function input(?string $prefix = null): string
    {
        if ($this->inputs === []) {
            throw new LogicException(
                'No input data. Specifiy input data with `MockInputOutput::setInputs()`.'
            );
        }

$input = array_shift($this->inputs);

$this->addStreamFilters();

PhpStreamWrapper::register();
        PhpStreamWrapper::setContent($input);

$userInput       = parent::input($prefix);
        $this->outputs[] = CITestStreamFilter::$buffer . $input . PHP_EOL;

PhpStreamWrapper::restore();

$this->removeStreamFilters();

if ($input !== $userInput) {
            throw new LogicException($input . '!==' . $userInput);
        }

return $input;
    }

public function fwrite($handle, string $string): void
    {
        $this->addStreamFilters();

parent::fwrite($handle, $string);
        $this->outputs[] = CITestStreamFilter::$buffer;

$this->removeStreamFilters();
    }
}