class DuplicateInfoFileValidatorTest

class DuplicateInfoFileValidatorTest extends PackageManagerKernelTestBase {
    
    /**
     * Data provider for testDuplicateInfoFilesInStage.
     *
     * @return mixed[][]
     *   The test cases.
     */
    public static function providerDuplicateInfoFilesInStage() : array {
        return [
            'Duplicate info.yml files in stage' => [
                [
                    '/module.info.yml',
                ],
                [
                    '/module.info.yml',
                    '/modules/module.info.yml',
                ],
                [
                    ValidationResult::createError([
                        t('The stage directory has 2 instances of module.info.yml as compared to 1 in the active directory. This likely indicates that a duplicate extension was installed.'),
                    ]),
                ],
            ],
            // Duplicate files in stage but having different extension which we don't
            // care about.
'Duplicate info files in stage' => [
                [
                    '/my_file.info',
                ],
                [
                    '/my_file.info',
                    '/modules/my_file.info',
                ],
                [],
            ],
            'Duplicate info.yml files in stage with one file in tests/fixtures folder' => [
                [
                    '/tests/fixtures/module.info.yml',
                ],
                [
                    '/tests/fixtures/module.info.yml',
                    '/modules/module.info.yml',
                ],
                [],
            ],
            'Duplicate info.yml files in stage with one file in tests/modules folder' => [
                [
                    '/tests/modules/module.info.yml',
                ],
                [
                    '/tests/modules/module.info.yml',
                    '/modules/module.info.yml',
                ],
                [],
            ],
            'Duplicate info.yml files in stage with one file in tests/themes folder' => [
                [
                    '/tests/themes/theme.info.yml',
                ],
                [
                    '/tests/themes/theme.info.yml',
                    '/themes/theme.info.yml',
                ],
                [],
            ],
            'Duplicate info.yml files in stage with one file in tests/profiles folder' => [
                [
                    '/tests/profiles/profile.info.yml',
                ],
                [
                    '/tests/profiles/profile.info.yml',
                    '/profiles/profile.info.yml',
                ],
                [],
            ],
            'Duplicate info.yml files in stage not present in active' => [
                [],
                [
                    '/module.info.yml',
                    '/modules/module.info.yml',
                ],
                [
                    ValidationResult::createError([
                        t('The stage directory has 2 instances of module.info.yml. This likely indicates that a duplicate extension was installed.'),
                    ]),
                ],
            ],
            'Duplicate info.yml files in active' => [
                [
                    '/module.info.yml',
                    '/modules/module.info.yml',
                ],
                [
                    '/module.info.yml',
                ],
                [],
            ],
            'Same number of info.yml files in active and stage' => [
                [
                    '/module.info.yml',
                    '/modules/module.info.yml',
                ],
                [
                    '/module.info.yml',
                    '/modules/module.info.yml',
                ],
                [],
            ],
            'Multiple duplicate info.yml files in stage' => [
                [
                    '/modules/module1/module1.info.yml',
                    '/modules/module2/module2.info.yml',
                ],
                [
                    '/modules/module1/module1.info.yml',
                    '/modules/module2/module2.info.yml',
                    '/modules/foo/module1.info.yml',
                    '/modules/bar/module2.info.yml',
                    '/modules/baz/module2.info.yml',
                ],
                [
                    ValidationResult::createError([
                        t('The stage directory has 3 instances of module2.info.yml as compared to 1 in the active directory. This likely indicates that a duplicate extension was installed.'),
                    ]),
                    ValidationResult::createError([
                        t('The stage directory has 2 instances of module1.info.yml as compared to 1 in the active directory. This likely indicates that a duplicate extension was installed.'),
                    ]),
                ],
            ],
            'Multiple duplicate info.yml files in stage not present in active' => [
                [],
                [
                    '/modules/module1/module1.info.yml',
                    '/modules/module2/module2.info.yml',
                    '/modules/foo/module1.info.yml',
                    '/modules/bar/module2.info.yml',
                    '/modules/baz/module2.info.yml',
                ],
                [
                    ValidationResult::createError([
                        t('The stage directory has 3 instances of module2.info.yml. This likely indicates that a duplicate extension was installed.'),
                    ]),
                    ValidationResult::createError([
                        t('The stage directory has 2 instances of module1.info.yml. This likely indicates that a duplicate extension was installed.'),
                    ]),
                ],
            ],
            'Multiple duplicate info.yml files in stage with one info.yml file not present in active' => [
                [
                    '/modules/module1/module1.info.yml',
                ],
                [
                    '/modules/module1/module1.info.yml',
                    '/modules/module2/module2.info.yml',
                    '/modules/foo/module1.info.yml',
                    '/modules/bar/module2.info.yml',
                    '/modules/baz/module2.info.yml',
                ],
                [
                    ValidationResult::createError([
                        t('The stage directory has 3 instances of module2.info.yml. This likely indicates that a duplicate extension was installed.'),
                    ]),
                    ValidationResult::createError([
                        t('The stage directory has 2 instances of module1.info.yml as compared to 1 in the active directory. This likely indicates that a duplicate extension was installed.'),
                    ]),
                ],
            ],
        ];
    }
    
    /**
     * Tests that duplicate info.yml in stage raise an error.
     *
     * @param string[] $active_info_files
     *   An array of info.yml files in active directory.
     * @param string[] $stage_info_files
     *   An array of info.yml files in stage directory.
     * @param \Drupal\package_manager\ValidationResult[] $expected_results
     *   An array of expected results.
     *
     * @dataProvider providerDuplicateInfoFilesInStage
     */
    public function testDuplicateInfoFilesInStage(array $active_info_files, array $stage_info_files, array $expected_results) : void {
        $stage = $this->createStage();
        $stage->create();
        $stage->require([
            'composer/semver:^3',
        ]);
        $active_dir = $this->container
            ->get(PathLocator::class)
            ->getProjectRoot();
        $stage_dir = $stage->getStageDirectory();
        foreach ($active_info_files as $active_info_file) {
            $this->createFileAtPath($active_dir, $active_info_file);
        }
        foreach ($stage_info_files as $stage_info_file) {
            $this->createFileAtPath($stage_dir, $stage_info_file);
        }
        try {
            $stage->apply();
            $this->assertEmpty($expected_results);
        } catch (StageEventException $e) {
            $this->assertNotEmpty($expected_results);
            $this->assertValidationResultsEqual($expected_results, $e->event
                ->getResults());
        }
    }
    
    /**
     * Creates the file at the root directory.
     *
     * @param string $root_directory
     *   The base directory in which the file will be created.
     * @param string $file_path
     *   The path of the file to create.
     */
    private function createFileAtPath(string $root_directory, string $file_path) : void {
        $parts = explode(DIRECTORY_SEPARATOR, $file_path);
        $filename = array_pop($parts);
        $file_dir = str_replace($filename, '', $file_path);
        $fs = new Filesystem();
        if (!file_exists($file_dir)) {
            $fs->mkdir($root_directory . $file_dir);
        }
        file_put_contents($root_directory . $file_path, "name: SOME MODULE\ntype: module\n");
    }

}