CommandCompletionTester.php

<?php


/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Symfony\Component\Console\Tester;

use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Completion\CompletionInput;
use Symfony\Component\Console\Completion\CompletionSuggestions;

/**
 * Eases the testing of command completion.
 *
 * @author Jérôme Tamarelle <jerome@tamarelle.net>
 */
class CommandCompletionTester {
    public function __construct(Command $command) {
    }
    
    /**
     * Create completion suggestions from input tokens.
     */
    public function complete(array $input) : array {
        $currentIndex = \count($input);
        if ('' === end($input)) {
            array_pop($input);
        }
        array_unshift($input, $this->command
            ->getName());
        $completionInput = CompletionInput::fromTokens($input, $currentIndex);
        $completionInput->bind($this->command
            ->getDefinition());
        $suggestions = new CompletionSuggestions();
        $this->command
            ->complete($completionInput, $suggestions);
        $options = [];
        foreach ($suggestions->getOptionSuggestions() as $option) {
            $options[] = '--' . $option->getName();
        }
        return array_map('strval', array_merge($options, $suggestions->getValueSuggestions()));
    }

}