<?php

class RegistryParseFileTestCase extends DrupalWebTestCase {
  protected $fileName;
  protected $className;
  protected $interfaceName;

  public static function getInfo() {
    return array(
      'name' => 'Registry parse file test',
      'description' => 'Parse a simple file and check that its resources are saved to the database.',
      'group' => 'System'
    );
  }

  function setUp() {
    $chrs = hash('sha256', microtime() . mt_rand());
    $this->fileName = 'registry_test_' . substr($chrs, 0, 16);
    $this->className = 'registry_test_class' . substr($chrs, 16, 16);
    $this->interfaceName = 'registry_test_interface' . substr($chrs, 32, 16);
    parent::setUp();
  }

  /**
   * testRegistryParseFile
   */
  function testRegistryParseFile() {
    _registry_parse_file($this->fileName, $this->getFileContents());
    foreach (array('className', 'interfaceName') as $resource) {
      $foundName = db_query('SELECT name FROM {registry} WHERE name = :name', array(':name' => $this->$resource))->fetchField();
      $this->assertTrue($this->$resource == $foundName, t('Resource "@resource" found.', array('@resource' => $this->$resource)));
    }
  }

  /**
   * getFileContents
   */
  function getFileContents() {
    $file_contents = <<<CONTENTS
<?php

class {$this->className} {}

interface {$this->interfaceName} {}

CONTENTS;
    return $file_contents;
  }

}

class RegistryParseFilesTestCase extends DrupalWebTestCase {
  protected $fileTypes = array('new', 'existing_changed');
  protected $new;
  protected $existing_changed;

  public static function getInfo() {
    return array(
      'name' => 'Registry parse files test',
      'description' => 'Read two a simple files from disc, and check that their resources are saved to the database.',
      'group' => 'System'
    );
  }

  function setUp() {
    parent::setUp();
    // Create files with some php to parse - one 'new', one 'existing' so
    // we test all the important code paths in _registry_parse_files.
    foreach ($this->fileTypes as $fileType) {
      $chrs = hash('sha256', microtime() . mt_rand());
      $this->$fileType = new stdClass();
      $this->$fileType->fileName = 'public://registry_test_' . substr($chrs, 0, 16);
      $this->$fileType->className = 'registry_test_class' . substr($chrs, 16, 16);
      $this->$fileType->interfaceName = 'registry_test_interface' . substr($chrs, 32, 16);
      $this->$fileType->contents = $this->getFileContents($fileType);
      file_save_data($this->$fileType->contents, $this->$fileType->fileName);

      if ($fileType == 'existing_changed') {
        // Add a record with an incorrect hash.
        $this->$fileType->fakeHash = hash('sha256', mt_rand());
        db_insert('registry_file')
          ->fields(array(
            'hash' => $this->$fileType->fakeHash,
            'filename' => $this->$fileType->fileName,
          ))
          ->execute();

        // Insert some fake resource records.
        foreach (array('class', 'interface') as $type) {
          db_insert('registry')
            ->fields(array(
              'name' => $type . hash('sha256', microtime() . mt_rand()),
              'type' => $type,
              'filename' => $this->$fileType->fileName,
            ))
            ->execute();
        }
      }
    }
  }

  /**
   * testRegistryParseFiles
   */
  function testRegistryParseFiles() {
    _registry_parse_files($this->getFiles());
    foreach ($this->fileTypes as $fileType) {
      // Test that we have all the right resources.
      foreach (array('className', 'interfaceName') as $resource) {
        $foundName = db_query('SELECT name FROM {registry} WHERE name = :name', array(':name' => $this->$fileType->$resource))->fetchField();
        $this->assertTrue($this->$fileType->$resource == $foundName, t('Resource "@resource" found.', array('@resource' => $this->$fileType->$resource)));
      }
      // Test that we have the right hash.
      $hash = db_query('SELECT hash FROM {registry_file} WHERE filename = :filename', array(':filename' => $this->$fileType->fileName))->fetchField();
      $this->assertTrue(hash('sha256', $this->$fileType->contents) == $hash, t('sha-256 for "@filename" matched.' . $fileType . $hash, array('@filename' => $this->$fileType->fileName)));
    }
  }

  /**
   * getFiles
   */
  function getFiles() {
    $files = array();
    foreach ($this->fileTypes as $fileType) {
      $files[$this->$fileType->fileName] = array('module' => '', 'weight' => 0);
      if ($fileType == 'existing_changed') {
        $files[$this->$fileType->fileName]['hash'] = $this->$fileType->fakeHash;
      }
    }
    return $files;
  }

  /**
   * getFileContents
   */
  function getFileContents($fileType) {
    $file_contents = <<<CONTENTS
<?php

class {$this->$fileType->className} {}

interface {$this->$fileType->interfaceName} {}

CONTENTS;
    return $file_contents;
  }

}
