function RulesIntegrationTestBase::constructModulePath

Determines the path to a module's class files.

Core modules and contributed modules are located in different places, and the testbot (DrupalCI) does not use same directory structure as most live Drupal sites, so we must discover the path instead of hardwiring it.

This method discovers modules the same way as Drupal core, so it should work for core and contributed modules in all environments.

See also

\Drupal\Core\Extension\ExtensionDiscovery

File

tests/src/Unit/Integration/RulesIntegrationTestBase.php, line 309

Class

RulesIntegrationTestBase

Base class for Rules integration tests.

Namespace

Code

protected function constructModulePath($module) {
    // Use Unix paths regardless of platform, skip dot directories, follow
    // symlinks (to allow extensions to be linked from elsewhere), and return
    // the RecursiveDirectoryIterator instance to have access to getSubPath(),
    // since SplFileInfo does not support relative paths.
    $flags = \FilesystemIterator::UNIX_PATHS;
    $flags |= \FilesystemIterator::SKIP_DOTS;
    $flags |= \FilesystemIterator::FOLLOW_SYMLINKS;
    $flags |= \FilesystemIterator::CURRENT_AS_SELF;
    $directory_iterator = new \RecursiveDirectoryIterator($this->root, $flags);
    // Filter the recursive scan to discover extensions only.
    // Important: Without a RecursiveFilterIterator, RecursiveDirectoryIterator
    // would recurse into the entire filesystem directory tree without any kind
    // of limitations.
    $filter = new RecursiveExtensionFilterIterator($directory_iterator);
    // Ensure we find testing modules too!
    $filter->acceptTests(TRUE);
    // The actual recursive filesystem scan is only invoked by instantiating the
    // RecursiveIteratorIterator.
    $iterator = new \RecursiveIteratorIterator($filter, \RecursiveIteratorIterator::LEAVES_ONLY, \RecursiveIteratorIterator::CATCH_GET_CHILD);
    $info_files = new \RegexIterator($iterator, "/^{$module}.info.yml\$/");
    foreach ($info_files as $file) {
        // There should only be one match.
        return $file->getSubPath();
    }
}