File "PhpUnitDataProviderStaticFixer.php"

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MIME-type: text/x-php
Charset: utf-8

<?php

declare(strict_types=1);

/*
 * This file is part of PHP CS Fixer.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *     Dariusz Rumiński <dariusz.ruminski@gmail.com>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

namespace PhpCsFixer\Fixer\PhpUnit;

use PhpCsFixer\Fixer\AbstractPhpUnitFixer;
use PhpCsFixer\Fixer\ConfigurableFixerInterface;
use PhpCsFixer\Fixer\ConfigurableFixerTrait;
use PhpCsFixer\FixerConfiguration\FixerConfigurationResolver;
use PhpCsFixer\FixerConfiguration\FixerConfigurationResolverInterface;
use PhpCsFixer\FixerConfiguration\FixerOptionBuilder;
use PhpCsFixer\FixerDefinition\CodeSample;
use PhpCsFixer\FixerDefinition\FixerDefinition;
use PhpCsFixer\FixerDefinition\FixerDefinitionInterface;
use PhpCsFixer\Tokenizer\Analyzer\DataProviderAnalyzer;
use PhpCsFixer\Tokenizer\Token;
use PhpCsFixer\Tokenizer\Tokens;
use PhpCsFixer\Tokenizer\TokensAnalyzer;

/**
 * @phpstan-type _AutogeneratedInputConfiguration array{
 *  force?: bool,
 * }
 * @phpstan-type _AutogeneratedComputedConfiguration array{
 *  force: bool,
 * }
 *
 * @implements ConfigurableFixerInterface<_AutogeneratedInputConfiguration, _AutogeneratedComputedConfiguration>
 *
 * @author Kuba Werłos <werlos@gmail.com>
 *
 * @no-named-arguments Parameter names are not covered by the backward compatibility promise.
 */
final class PhpUnitDataProviderStaticFixer extends AbstractPhpUnitFixer implements ConfigurableFixerInterface
{
    /** @use ConfigurableFixerTrait<_AutogeneratedInputConfiguration, _AutogeneratedComputedConfiguration> */
    use ConfigurableFixerTrait;

    public function getDefinition(): FixerDefinitionInterface
    {
        return new FixerDefinition(
            'Data providers must be static.',
            [
                new CodeSample(
                    <<<'PHP'
                        <?php
                        class FooTest extends TestCase {
                            /**
                             * @dataProvider provideSomethingCases
                             */
                            public function testSomething($expected, $actual) {}
                            public function provideSomethingCases() {}
                        }

                        PHP,
                ),
                new CodeSample(
                    <<<'PHP'
                        <?php
                        class FooTest extends TestCase {
                            /**
                             * @dataProvider provideSomethingCases1
                             * @dataProvider provideSomethingCases2
                             */
                            public function testSomething($expected, $actual) {}
                            public function provideSomethingCases1() { $this->getData1(); }
                            public function provideSomethingCases2() { self::getData2(); }
                        }

                        PHP,
                    ['force' => true],
                ),
                new CodeSample(
                    <<<'PHP'
                        <?php
                        class FooTest extends TestCase {
                            /**
                             * @dataProvider provideSomething1Cases
                             * @dataProvider provideSomething2Cases
                             */
                            public function testSomething($expected, $actual) {}
                            public function provideSomething1Cases() { $this->getData1(); }
                            public function provideSomething2Cases() { self::getData2(); }
                        }

                        PHP,
                    ['force' => false],
                ),
            ],
            null,
            'Fixer could be risky if one is calling data provider function dynamically.',
        );
    }

    public function isRisky(): bool
    {
        return true;
    }

    protected function createConfigurationDefinition(): FixerConfigurationResolverInterface
    {
        return new FixerConfigurationResolver([
            (new FixerOptionBuilder(
                'force',
                'Whether to make the data providers static even if they have a dynamic class call'
                .' (may introduce fatal error "using $this when not in object context",'
                .' and you may have to adjust the code manually by converting dynamic calls to static ones).',
            ))
                ->setAllowedTypes(['bool'])
                ->setDefault(false)
                ->getOption(),
        ]);
    }

    protected function applyPhpUnitClassFix(Tokens $tokens, int $startIndex, int $endIndex): void
    {
        $dataProviderAnalyzer = new DataProviderAnalyzer();
        $tokensAnalyzer = new TokensAnalyzer($tokens);

        $inserts = [];
        foreach ($dataProviderAnalyzer->getDataProviders($tokens, $startIndex, $endIndex) as $dataProviderDefinitionIndex) {
            $methodStartIndex = $tokens->getNextTokenOfKind($dataProviderDefinitionIndex->getNameIndex(), ['{']);
            if (null !== $methodStartIndex) {
                $methodEndIndex = $tokens->findBlockEnd(Tokens::BLOCK_TYPE_CURLY_BRACE, $methodStartIndex);

                if (false === $this->configuration['force'] && null !== $tokens->findSequence([[\T_VARIABLE, '$this']], $methodStartIndex, $methodEndIndex)) {
                    continue;
                }
            }

            /** @var int $functionIndex */
            $functionIndex = $tokens->getPrevTokenOfKind($dataProviderDefinitionIndex->getNameIndex(), [[\T_FUNCTION]]);

            $methodAttributes = $tokensAnalyzer->getMethodAttributes($functionIndex);
            if (false !== $methodAttributes['static']) {
                continue;
            }

            $inserts[$functionIndex] = [new Token([\T_STATIC, 'static']), new Token([\T_WHITESPACE, ' '])];
        }
        $tokens->insertSlices($inserts);
    }
}