<?php

/**
 * @file
 * Contains FeedsMapperFileTestCase.
 */

/**
 * Test case for Filefield mapper mappers/filefield.inc.
 */
class FeedsMapperFileTestCase extends FeedsMapperTestCase {

  public static function getInfo() {
    return array(
      'name' => 'Mapper: File field',
      'description' => 'Test Feeds Mapper support for file fields. <strong>Requires SimplePie library</strong>.',
      'group' => 'Feeds',
    );
  }

  public function setUp() {
    parent::setUp(array('dblog'));

    // If this is unset (or FALSE) http_request.inc will use curl, and will
    // generate a 404 for the feed url provided by feeds_tests. However, if
    // feeds_tests was enabled in your site before running the test, it will
    // work fine. Since it is truly screwy, lets just force it to use
    // drupal_http_request() for this test case.
    variable_set('feeds_never_use_curl', TRUE);

    // Get our defined constants and any helper functions.
    module_load_include('inc', 'feeds', 'mappers/file');
  }

  /**
   * Basic test loading a single entry CSV file.
   */
  public function test() {
    // Only download simplepie if the plugin doesn't already exist somewhere.
    // People running tests locally might have it.
    $this->requireSimplePie();

    $typename = $this->createContentType(array(), array(
      'files' => array(
        'type' => 'file',
        'instance_settings' => array(
          'instance[settings][file_extensions]' => 'png, gif, jpg, jpeg',
        ),
      ),
    ));

    // 1) Test mapping remote resources to file field.

    // Create importer configuration.
    $this->createImporterConfiguration();
    $this->setPlugin('syndication', 'FeedsSimplePieParser');
    $this->setSettings('syndication', 'FeedsNodeProcessor', array('bundle' => $typename));
    $this->addMappings('syndication', array(
      0 => array(
        'source' => 'title',
        'target' => 'title',
      ),
      1 => array(
        'source' => 'timestamp',
        'target' => 'created',
      ),
      2 => array(
        'source' => 'enclosures',
        'target' => 'field_files:uri',
      ),
    ));
    $nid = $this->createFeedNode('syndication', $GLOBALS['base_url'] . '/testing/feeds/flickr.xml', 'Test Title');
    $this->assertText('Created 5 nodes');

    $files = $this->listTestFiles();
    $entities = db_select('feeds_item')
      ->fields('feeds_item', array('entity_id'))
      ->condition('id', 'syndication')
      ->execute();
    foreach ($entities as $entity) {
      $this->drupalGet('node/' . $entity->entity_id . '/edit');
      $this->assertText(str_replace(' ', '_', array_shift($files)));
    }

    // 2) Test mapping local resources to file field.

    // Copy directory of files, CSV file expects them in public://images, point
    // file field to a 'resources' directory. Feeds should copy files from
    // images/ to resources/ on import.
    $this->copyDir($this->absolutePath() . '/tests/feeds/assets', 'public://images');
    $edit = array(
      'instance[settings][file_directory]' => 'resources',
    );
    $this->drupalPost('admin/structure/types/manage/' . $typename . '/fields/field_files', $edit, t('Save settings'));

    // Create a CSV importer configuration.
    $this->createImporterConfiguration('Node import from CSV', 'node');
    $this->setPlugin('node', 'FeedsCSVParser');
    $this->setSettings('node', 'FeedsNodeProcessor', array('bundle' => $typename));
    $this->setSettings('node', NULL, array('content_type' => ''));
    $this->addMappings('node', array(
      0 => array(
        'source' => 'title',
        'target' => 'title',
      ),
      1 => array(
        'source' => 'file',
        'target' => 'field_files:uri',
      ),
    ));

    // Import.
    $edit = array(
      'feeds[FeedsHTTPFetcher][source]' => url('testing/feeds/files.csv', array('absolute' => TRUE)),
    );
    $this->drupalPost('import/node', $edit, 'Import');
    $this->assertText('Created 5 nodes');

    // Assert: files should be in resources/.
    $files = $this->listTestFiles();
    $entities = db_select('feeds_item')
      ->fields('feeds_item', array('entity_id'))
      ->condition('id', 'node')
      ->execute();

    foreach ($entities as $entity) {
      $this->drupalGet('node/' . $entity->entity_id . '/edit');
      $this->assertRaw('resources/' . rawurlencode(array_shift($files)));
    }

    // 3) Test mapping of local resources, this time leave files in place.
    $this->drupalPost('import/node/delete-items', array(), 'Delete');
    // Setting the fields file directory to images will make copying files
    // obsolete.
    $edit = array(
      'instance[settings][file_directory]' => 'images',
    );
    $this->drupalPost('admin/structure/types/manage/' . $typename . '/fields/field_files', $edit, t('Save settings'));
    $edit = array(
      'feeds[FeedsHTTPFetcher][source]' => $GLOBALS['base_url'] . '/testing/feeds/files.csv',
    );
    $this->drupalPost('import/node', $edit, 'Import');
    $this->assertText('Created 5 nodes');

    // Assert: files should be in images/ now.
    $files = $this->listTestFiles();
    $entities = db_select('feeds_item')
      ->fields('feeds_item', array('entity_id'))
      ->condition('id', 'node')
      ->execute();

    foreach ($entities as $entity) {
      $this->drupalGet('node/' . $entity->entity_id . '/edit');
      $this->assertRaw('images/' . rawurlencode(array_shift($files)));
    }

    // Deleting all imported items will delete the files from the images/ dir.
    $this->drupalPost('import/node/delete-items', array(), 'Delete');
    foreach ($this->listTestFiles() as $file) {
      $this->assertFalse(is_file("public://images/$file"));
    }
  }

  /**
   * Test mapping of local resources with the file exists "Rename" setting.
   *
   * In this test, files to import should be renamed if files with the same name
   * already exist in the destination folder.
   * Example: on the destination folder there exist a file named 'foo.jpg'. When
   * importing a file with the same name, that file should be renamed to
   * 'foo_0.jpg'.
   */
  public function testFileExistsRename() {
    // Copy the files to import to the folder 'images'.
    $this->copyDir($this->absolutePath() . '/tests/feeds/assets', 'public://images');

    // Create a content type. Save imported files into the directory
    // 'destination_rename'.
    $typename = $this->createContentTypeWithFileField('destination_rename');

    // Copy files with the same names to the destination folder. These files
    // should remain intact, while the files to import should get renamed.
    $this->copyDir($this->absolutePath() . '/tests/feeds/assets', 'public://destination_rename');

    // Create a CSV importer configuration.
    $this->createImporterConfiguration('Node import from CSV -- File Exists Rename', 'node_rename');
    $this->setSettings('node_rename', NULL, array('content_type' => ''));
    $this->setPlugin('node_rename', 'FeedsCSVParser');
    $this->setSettings('node_rename', 'FeedsNodeProcessor', array('bundle' => $typename));
    $this->addMappings('node_rename', array(
      0 => array(
        'source' => 'title',
        'target' => 'title',
      ),
      1 => array(
        'source' => 'file',
        'target' => 'field_files:uri',
        'file_exists' => FILE_EXISTS_RENAME,
      ),
    ));

    // Perform the import.
    $edit = array(
      'feeds[FeedsHTTPFetcher][source]' => $GLOBALS['base_url'] . '/testing/feeds/files.csv',
    );
    $this->drupalPost('import/node_rename', $edit, 'Import');
    $this->assertText('Created 5 nodes');

    // Assert: all imported files should be renamed.
    $files = $this->listTestFiles();
    $entities = db_select('feeds_item')
      ->fields('feeds_item', array('entity_id'))
      ->condition('id', 'node_rename')
      ->execute();
    foreach ($entities as $entity) {
      $this->drupalGet('node/' . $entity->entity_id . '/edit');
      $f = new FeedsEnclosure(array_shift($files), NULL);
      $renamed_file = str_replace('.jpeg', '_0.jpeg', $f->getUrlEncodedValue());
      $this->assertRaw('destination_rename/' . $renamed_file);
    }

    // Clean up the last import.
    $this->drupalPost('import/node_rename/delete-items', array(), 'Delete');
  }

  /**
   * Test mapping of local resources with the file exists "Replace" setting.
   *
   * In this test, files to import should be replaced if files with the same
   * name already exist in the destination folder.
   * Example: on the destination folder there exist a file named 'foo.jpg'.
   * When importing a file with the same name, that file should replace the
   * existing 'foo.jpg'.
   */
  public function testFileExistsReplace() {
    $source = 'public://images';
    $dest = 'public://destination_replace';

    // Copy the files to import to the folder 'images'.
    $this->copyDir($this->absolutePath() . '/tests/feeds/assets', $source);

    // Create a content type. Save imported files into the directory
    // 'destination_replace'.
    $typename = $this->createContentTypeWithFileField('destination_replace');

    // Copy files with the same name to the destination folder, but make sure
    // that the files are different by shuffling the file names. These files
    // should get overwritten upon import.
    $this->copyDir($this->absolutePath() . '/tests/feeds/assets', $dest, $this->listTestFilesNameMap());

    // Confirm the files from the source folder are all different from the
    // destination folder.
    foreach (@scandir($source) as $file) {
      if (is_file("$source/$file")) {
        $message = "$source/$file is not the same as $dest/$file";
        $this->assertFalse(file_feeds_file_compare("$source/$file", "$dest/$file"), $message);
      }
    }

    // Create a CSV importer configuration.
    $this->createImporterConfiguration('Node import from CSV -- File Exists Replace', 'node_replace');
    $this->setSettings('node_replace', NULL, array('content_type' => ''));
    $this->setPlugin('node_replace', 'FeedsCSVParser');
    $this->setSettings('node_replace', 'FeedsNodeProcessor', array('bundle' => $typename));
    $this->addMappings('node_replace', array(
      0 => array(
        'source' => 'title',
        'target' => 'title',
      ),
      1 => array(
        'source' => 'file',
        'target' => 'field_files:uri',
        'file_exists' => FILE_EXISTS_REPLACE,
      ),
    ));

    // Perform the import.
    $edit = array(
      'feeds[FeedsHTTPFetcher][source]' => $GLOBALS['base_url'] . '/testing/feeds/files.csv',
    );
    $this->drupalPost('import/node_replace', $edit, 'Import');
    $this->assertText('Created 5 nodes');

    // Assert: all files in the destination folder should be exactly the same as
    // the files in the source folder.
    foreach (@scandir($source) as $file) {
      if (is_file("$source/$file")) {
        $message = "$source/$file is the same as $dest/$file";
        $this->assertTrue(file_feeds_file_compare("$source/$file", "$dest/$file"), $message);
      }
    }

    // Clean up the last import.
    $this->drupalPost('import/node_replace/delete-items', array(), 'Delete');
  }

  /**
   * Test mapping of local resources with the file exists "Rename if different"
   * setting.
   *
   * In this test, files to import should only be renamed under the following
   * circumstances:
   * - A file the same name already exist in the destination folder;
   * - AND this file is different.
   *
   * Example: on the destination folder there exist two files: one called
   * 'foo.jpg' and an other called 'bar.jpg'. On an import two files with the
   * same name are imported. The 'foo.jpg' is exactly the same as the one that
   * already exist on the destination, but 'bar.jpg' is different. In this case,
   * only 'bar.jpg' should get imported and it should be renamed to 'bar_0.jpg'.
   * Importing 'foo.jpg' should be skipped as it is already there. The file's
   * timestamp will remain the same.
   */
  public function testFileExistsRenameIfDifferent() {
    $source = 'public://images';
    $dest = 'public://destination_rename_diff';

    // Copy the files to import to the folder 'images'.
    $this->copyDir($this->absolutePath() . '/tests/feeds/assets', $source);

    // Create a content type. Save imported files into the directory
    // 'destination_rename_diff'.
    $typename = $this->createContentTypeWithFileField('destination_rename_diff');

    // Shuffle a couple of the file names so the files appear to be different.
    // Leave a few others the same.
    $same = array(
      'foosball.jpeg' => 'foosball.jpeg',
      'attersee.jpeg' => 'attersee.jpeg',
      'hstreet.jpeg' => 'hstreet.jpeg',
    );
    $different = array(
      'la fayette.jpeg' => 'tubing.jpeg',
      'tubing.jpeg' => 'la fayette.jpeg',
    );

    // Copy files with the same name to the destination folder. A few of them
    // however, will be different. Only these files should get renamed upon
    // import.
    $this->copyDir($this->absolutePath() . '/tests/feeds/assets', $dest, $same + $different);

    // Note the timestamps that the files got in the destination folder.
    $file_timestamps = array();
    foreach (@scandir($dest) as $file) {
      $file_timestamps[$file] = filemtime("$dest/$file");
    }

    // Confirm that some of the files are the same.
    foreach ($same as $file) {
      if (is_file("$source/$file")) {
        $message = "$source/$file IS the same as $dest/$file";
        $this->assertTrue(file_feeds_file_compare("$source/$file", "$dest/$file"), $message);
      }
    }

    // Confirm that some of the files are different.
    foreach ($different as $file) {
      if (is_file("$source/$file")) {
        $message = "$source/$file is NOT the same as $dest/$file";
        $this->assertFalse(file_feeds_file_compare("$source/$file", "$dest/$file"), $message);
      }
    }

    // Create a CSV importer configuration.
    $this->createImporterConfiguration('Node import from CSV -- File Exists Rename if Different', 'node_rename_diff');
    $this->setSettings('node_rename_diff', NULL, array('content_type' => ''));
    $this->setPlugin('node_rename_diff', 'FeedsCSVParser');
    $this->setSettings('node_rename_diff', 'FeedsNodeProcessor', array('bundle' => $typename));
    $this->addMappings('node_rename_diff', array(
      0 => array(
        'source' => 'title',
        'target' => 'title',
      ),
      1 => array(
        'source' => 'file',
        'target' => 'field_files:uri',
        'file_exists' => FEEDS_FILE_EXISTS_RENAME_DIFFERENT,
      ),
    ));

    // Perform the import.
    $edit = array(
      'feeds[FeedsHTTPFetcher][source]' => $GLOBALS['base_url'] . '/testing/feeds/files.csv',
    );
    $this->drupalPost('import/node_rename_diff', $edit, 'Import');
    $this->assertText('Created 5 nodes');

    // Assert that only files that were different should have been renamed.
    $files = $this->listTestFiles();
    $entities = db_select('feeds_item')
      ->fields('feeds_item', array('entity_id'))
      ->condition('id', 'node_rename_diff')
      ->execute();
    foreach ($entities as $entity) {
      $this->drupalGet('node/' . $entity->entity_id . '/edit');
      $f = new FeedsEnclosure(array_shift($files), NULL);
      $original_file = $f->getUrlEncodedValue();
      $renamed_file = str_replace('.jpeg', '_0.jpeg', $f->getUrlEncodedValue());

      if (isset($same[$original_file])) {
        // Assert that the file still has the same name.
        $this->assertRaw('destination_rename_diff/' . $original_file);
      }
      else {
        // Assert that the file still has been renamed.
        $this->assertRaw('destination_rename_diff/' . $renamed_file);
      }
    }

    // Assert that some files have been kept the same.
    foreach ($same as $file) {
      if (is_file("$source/$file")) {
        $message = "$source/$file is STILL the same as $dest/$file";
        $this->assertTrue(file_feeds_file_compare("$source/$file", "$dest/$file"), $message);
        $message = "$dest/$file was not replaced (modification time is the same as before import)";
        $this->assertEqual(filemtime("$dest/$file"), $file_timestamps[$file], $message);
      }
    }

    // Clean up the last import.
    $this->drupalPost('import/node_rename_diff/delete-items', array(), 'Delete');
  }

  /**
   * Test mapping of local resources with the file exists "Replace if different"
   * setting.
   *
   * In this test, files to import should only be replaced under the following
   * circumstances:
   * - A file the same name already exist in the destination folder;
   * - AND this file is different.
   *
   * Example: on the destination folder there exist two files: one called
   * 'foo.jpg' and an other called 'bar.jpg'. On an import two files with the
   * same name are imported. The 'foo.jpg' is exactly the same as the one that
   * already exist on the destination, but 'bar.jpg' is different. In this case,
   * only 'bar.jpg' should get imported and it should overwrite the existing
   * 'bar.jpg'. Importing 'foo.jpg' should be skipped as it is already there.
   * The file's timestamp will remain the same.
   */
  public function testFileExistsReplaceIfDifferent() {
    $source = 'public://images';
    $dest = 'public://destination_replace_diff';

    // Copy the files to import to the folder 'images'.
    $this->copyDir($this->absolutePath() . '/tests/feeds/assets', $source);

    // Create a content type. Save imported files into the directory
    // 'destination_replace_diff'.
    $typename = $this->createContentTypeWithFileField('destination_replace_diff');

    // Shuffle a couple of the file names so the files appear to be different.
    // Leave a few others the same.
    $same = array(
      'foosball.jpeg' => 'foosball.jpeg',
      'attersee.jpeg' => 'attersee.jpeg',
      'hstreet.jpeg' => 'hstreet.jpeg',
    );
    $different = array(
      'la fayette.jpeg' => 'tubing.jpeg',
      'tubing.jpeg' => 'la fayette.jpeg',
    );

    // Copy files with the same name to the destination folder. A few of them
    // however, will be different. Only these files should get replaced upon
    // import.
    $this->copyDir($this->absolutePath() . '/tests/feeds/assets', $dest, $same + $different);

    // Note the timestamps that the files got in the destination folder.
    $file_timestamps = array();
    foreach (@scandir($dest) as $file) {
      $file_timestamps[$file] = filemtime("$dest/$file");
    }

    // Confirm that some of the files are the same.
    foreach ($same as $file) {
      if (is_file("$source/$file")) {
        $message = "$source/$file IS the same as $dest/$file";
        $this->assertTrue(file_feeds_file_compare("$source/$file", "$dest/$file"), $message);
      }
    }

    // Confirm that some of the files are different.
    foreach ($different as $file) {
      if (is_file("$source/$file")) {
        $message = "$source/$file is NOT the same as $dest/$file";
        $this->assertFalse(file_feeds_file_compare("$source/$file", "$dest/$file"), $message);
      }
    }

    // Create a CSV importer configuration.
    $this->createImporterConfiguration('Node import from CSV -- File Exists Replace if Different', 'node_replace_diff');
    $this->setSettings('node_replace_diff', NULL, array('content_type' => ''));
    $this->setPlugin('node_replace_diff', 'FeedsCSVParser');
    $this->setSettings('node_replace_diff', 'FeedsNodeProcessor', array('bundle' => $typename));
    $this->addMappings('node_replace_diff', array(
      0 => array(
        'source' => 'title',
        'target' => 'title',
      ),
      1 => array(
        'source' => 'file',
        'target' => 'field_files:uri',
        'file_exists' => FEEDS_FILE_EXISTS_REPLACE_DIFFERENT,
      ),
    ));

    // Perform the import.
    $edit = array(
      'feeds[FeedsHTTPFetcher][source]' => $GLOBALS['base_url'] . '/testing/feeds/files.csv',
    );
    $this->drupalPost('import/node_replace_diff', $edit, 'Import');
    $this->assertText('Created 5 nodes');

    // Assert that some files have been kept the same.
    foreach ($same as $file) {
      if (is_file("$source/$file")) {
        $message = "$source/$file is STILL the same as $dest/$file";
        $this->assertTrue(file_feeds_file_compare("$source/$file", "$dest/$file"), $message);
        $message = "$dest/$file was not replaced (modification time is the same as before import)";
        $this->assertEqual(filemtime("$dest/$file"), $file_timestamps[$file], $message);
      }
    }

    // Assert that some files were replaced.
    foreach ($different as $file) {
      if (is_file("$source/$file")) {
        $message = "$source/$file successfully replaced $dest/$file";
        $this->assertTrue(file_feeds_file_compare("$source/$file", "$dest/$file"), $message);
        $this->assertNotEqual(filemtime("$dest/$file"), $file_timestamps[$file], $message);
      }
    }

    // Clean up the last import.
    $this->drupalPost('import/node_replace_diff/delete-items', array(), 'Delete');
  }

  /**
   * Test mapping of local resources with the file exists "Skip existig"
   * setting.
   *
   * In this test, files should only be imported if no file exist yet with the
   * given name.
   * Example: on the destination folder there exist a file named 'foo.jpg'. When
   * importing a file with the same name, that file should not be imported
   * as there already is a file with that name.
   */
  public function testFileExistsSkip() {
    $source = 'public://images';
    $dest = 'public://destination_skip';

    // Copy the files to import to the folder 'images'.
    $this->copyDir($this->absolutePath() . '/tests/feeds/assets', $source);

    // Create a content type. Save imported files into the directory
    // 'destination_skip'.
    $typename = $this->createContentTypeWithFileField('destination_skip');

    // Copy a few images also to the destination directory.
    $same = array(
      'foosball.jpeg' => 'foosball.jpeg',
      'attersee.jpeg' => 'attersee.jpeg',
      'hstreet.jpeg' => 'hstreet.jpeg',
    );
    $different = array(
      'la fayette.jpeg' => FALSE,
      'tubing.jpeg' => FALSE,
    );
    $this->copyDir($this->absolutePath() . '/tests/feeds/assets', $dest, $same + $different);

    // Note the timestamps that the files got in the destination folder.
    $file_timestamps = array();
    foreach (@scandir($dest) as $file) {
      $file_timestamps[$file] = filemtime("$dest/$file");
    }

    // Confirm that some of the files are the same.
    foreach ($same as $file) {
      if (is_file("$source/$file")) {
        $message = "$source/$file IS the same as $dest/$file";
        $this->assertTrue(file_feeds_file_compare("$source/$file", "$dest/$file"), $message);
      }
    }

    // Confirm that some of the files do not exist.
    foreach ($different as $file => $value) {
      $message = "$dest/$file does not exist.";
      $this->assertFalse(file_exists("$dest/$file"), $message);
    }

    // Create a CSV importer configuration.
    $this->createImporterConfiguration('Node import from CSV -- File Exists Replace if Different', 'node_skip');
    $this->setSettings('node_skip', NULL, array('content_type' => ''));
    $this->setPlugin('node_skip', 'FeedsCSVParser');
    $this->setSettings('node_skip', 'FeedsNodeProcessor', array('bundle' => $typename));
    $this->addMappings('node_skip', array(
      0 => array(
        'source' => 'title',
        'target' => 'title',
      ),
      1 => array(
        'source' => 'file',
        'target' => 'field_files:uri',
        'file_exists' => FEEDS_FILE_EXISTS_SKIP,
      ),
    ));

    // Perform the import.
    $edit = array(
      'feeds[FeedsHTTPFetcher][source]' => $GLOBALS['base_url'] . '/testing/feeds/files.csv',
    );
    $this->drupalPost('import/node_skip', $edit, 'Import');
    $this->assertText('Created 5 nodes');

    // Assert that files that were already in the destination folder were not
    // overwritten.
    foreach ($same as $file) {
      if (is_file("$source/$file")) {
        $message = "$dest/$file was skipped (modification time is the same as before import)";
        $this->assertEqual(filemtime("$dest/$file"), $file_timestamps[$file], $message);
      }
    }

    // Assert that the other files were added with the expected names.
    $files = $this->listTestFiles();
    $entities = db_select('feeds_item')
      ->fields('feeds_item', array('entity_id'))
      ->condition('id', 'node_skip')
      ->execute();
    foreach ($entities as $entity) {
      $this->drupalGet('node/' . $entity->entity_id . '/edit');
      $f = new FeedsEnclosure(array_shift($files), NULL);
      $this->assertRaw('destination_skip/' . $f->getUrlEncodedValue());
    }
  }

  /**
   * Tests mapping to an image field.
   */
  public function testImages() {
    variable_set('feeds_never_use_curl', TRUE);

    $typename = $this->createContentType(array(), array('images' => 'image'));

    // Enable title and alt mapping.
    $edit = array(
      'instance[settings][alt_field]' => 1,
      'instance[settings][title_field]' => 1,
    );
    $this->drupalPost("admin/structure/types/manage/$typename/fields/field_images", $edit, t('Save settings'));

    // Create a CSV importer configuration.
    $this->createImporterConfiguration('Node import from CSV', 'image_test');
    $this->setPlugin('image_test', 'FeedsCSVParser');
    $this->setSettings('image_test', 'FeedsNodeProcessor', array('bundle' => $typename));
    $this->setSettings('image_test', NULL, array('content_type' => ''));
    $this->addMappings('image_test', array(
      0 => array(
        'source' => 'title',
        'target' => 'title',
      ),
      1 => array(
        'source' => 'file',
        'target' => 'field_images:uri',
      ),
      2 => array(
        'source' => 'title2',
        'target' => 'field_images:title',
      ),
      3 => array(
        'source' => 'alt',
        'target' => 'field_images:alt',
      ),
    ));

    // Import.
    $edit = array(
      'feeds[FeedsHTTPFetcher][source]' => url('testing/feeds/files-remote.csv', array('absolute' => TRUE)),
    );
    $this->drupalPost('import/image_test', $edit, 'Import');
    $this->assertText('Created 5 nodes');

    // Assert files exist.
    $files = $this->listTestFiles();
    $entities = db_select('feeds_item')
      ->fields('feeds_item', array('entity_id'))
      ->condition('id', 'image_test')
      ->execute();

    foreach ($entities as $i => $entity) {
      $this->drupalGet('node/' . $entity->entity_id . '/edit');
      $this->assertRaw(str_replace(' ', '_', array_shift($files)));
      $this->assertRaw("Alt text $i");
      $this->assertRaw("Title text $i");
    }
  }

  public function testInvalidFileExtension() {
    variable_set('feeds_never_use_curl', TRUE);

    $typename = $this->createContentType(array(), array(
      'files' => array(
        'type' => 'file',
        'instance_settings' => array(
          'instance[settings][file_extensions]' => 'txt',
        ),
      ),
    ));

    // Create a CSV importer configuration.
    $this->createImporterConfiguration('Node import from CSV', 'invalid_extension');
    $this->setPlugin('invalid_extension', 'FeedsCSVParser');
    $this->setSettings('invalid_extension', 'FeedsNodeProcessor', array('bundle' => $typename));
    $this->setSettings('invalid_extension', NULL, array('content_type' => ''));
    $this->addMappings('invalid_extension', array(
      0 => array(
        'source' => 'title',
        'target' => 'title',
      ),
      1 => array(
        'source' => 'file',
        'target' => 'field_files:uri',
      ),
    ));

    // Import.
    $edit = array(
      'feeds[FeedsHTTPFetcher][source]' => url('testing/feeds/files-remote.csv', array('absolute' => TRUE)),
    );
    $this->drupalPost('import/invalid_extension', $edit, 'Import');
    $this->assertText('Created 5 nodes');

    foreach (range(1, 5) as $nid) {
      $node = node_load($nid);
      $this->assertTrue(empty($node->field_files));
    }

    foreach ($this->listTestFiles() as $filename) {
      $message = t('The file @file has an invalid extension.', array('@file' => $filename));
      $this->assertTrue(db_query("SELECT 1 FROM {watchdog} WHERE message = :message", array(':message' => $message))->fetchField());
    }

    // Test that query string and fragments are removed.
    $enclosure = new FeedsEnclosure('http://example.com/image.jpg?thing=stuff', 'text/plain');
    $this->assertEqual($enclosure->getLocalValue(), 'image.jpg');
    $enclosure = new FeedsEnclosure('http://example.com/image.jpg#stuff', 'text/plain');
    $this->assertEqual($enclosure->getLocalValue(), 'image.jpg');
    $enclosure = new FeedsEnclosure('http://example.com/image.JPG?thing=stuff#stuff', 'text/plain');
    $this->assertEqual($enclosure->getLocalValue(), 'image.JPG');
  }

  /**
   * Tests if values are cleared out when an empty value or no value
   * is provided.
   */
  public function testClearOutValues() {
    variable_set('feeds_never_use_curl', TRUE);

    $this->createContentType(array(), array('files' => 'file'));
    $typename = $this->createContentType(array(), array(
      'images' => 'image',
    ));

    // Enable title and alt mapping.
    $edit = array(
      'instance[settings][alt_field]' => 1,
      'instance[settings][title_field]' => 1,
    );
    $this->drupalPost("admin/structure/types/manage/$typename/fields/field_images", $edit, t('Save settings'));

    // Create and configure importer.
    $this->createImporterConfiguration('Content CSV', 'csv');
    $this->setSettings('csv', NULL, array(
      'content_type' => '',
      'import_period' => FEEDS_SCHEDULE_NEVER,
    ));
    $this->setPlugin('csv', 'FeedsCSVParser');
    $this->setSettings('csv', 'FeedsNodeProcessor', array(
      'bundle' => $typename,
      'update_existing' => 1,
    ));
    $this->addMappings('csv', array(
      0 => array(
        'source' => 'guid',
        'target' => 'guid',
        'unique' => TRUE,
      ),
      1 => array(
        'source' => 'title',
        'target' => 'title',
      ),
      2 => array(
        'source' => 'file',
        'target' => 'field_images:uri',
      ),
      3 => array(
        'source' => 'title2',
        'target' => 'field_images:title',
      ),
      4 => array(
        'source' => 'alt',
        'target' => 'field_images:alt',
      ),
    ));

    // Import.
    $edit = array(
      'feeds[FeedsHTTPFetcher][source]' => url('testing/feeds/files-remote.csv', array('absolute' => TRUE)),
    );
    $this->drupalPost('import/csv', $edit, 'Import');
    $this->assertText('Created 5 nodes');

    // Assert files exist.
    $files = $this->listTestFiles();
    foreach ($files as $file) {
      $file_path = drupal_realpath('public://') . '/' . str_replace(' ', '_', $file);
      $this->assertTrue(file_exists($file_path), format_string('The file %file exists.', array(
        '%file' => $file_path,
      )));
    }

    // Assert files exists with the expected alt/title on node edit form.
    $entities = db_select('feeds_item')
      ->fields('feeds_item', array('entity_id'))
      ->condition('id', 'csv')
      ->execute()
      ->fetchAll();

    foreach ($entities as $i => $entity) {
      $this->drupalGet('node/' . $entity->entity_id . '/edit');
      $this->assertRaw(str_replace(' ', '_', array_shift($files)));
      $this->assertRaw("Alt text $i");
      $this->assertRaw("Title text $i");
    }

    // Import CSV with empty alt/title fields and check if these are removed.
    $edit = array(
      'feeds[FeedsHTTPFetcher][source]' => url('testing/feeds/files-empty-alt-title.csv', array('absolute' => TRUE)),
    );
    $this->drupalPost('import/csv', $edit, 'Import');
    $this->assertText('Updated 5 nodes');

    $files = $this->listTestFiles();
    foreach ($entities as $i => $entity) {
      $this->drupalGet('node/' . $entity->entity_id . '/edit');
      $this->assertRaw(str_replace(' ', '_', array_shift($files)));
      $this->assertNoRaw("Alt text $i");
      $this->assertNoRaw("Title text $i");
    }

    // Import CSV with empty file fields and check if all files are removed.
    $edit = array(
      'feeds[FeedsHTTPFetcher][source]' => url('testing/feeds/files-empty.csv', array('absolute' => TRUE)),
    );
    $this->drupalPost('import/csv', $edit, 'Import');
    $this->assertText('Updated 5 nodes');

    // Assert files are removed.
    $files = $this->listTestFiles();
    foreach ($files as $file) {
      $file_path = drupal_realpath('public://') . '/' . str_replace(' ', '_', $file);
      $this->assertFalse(file_exists($file_path), format_string('The file %file no longer exists.', array(
        '%file' => $file_path,
      )));
    }
    // Check if the files are removed from the node edit form as well.
    foreach ($entities as $i => $entity) {
      $this->drupalGet('node/' . $entity->entity_id . '/edit');
      $this->assertNoRaw(str_replace(' ', '_', array_shift($files)));
    }
  }

  /**
   * Creates a content type with a file field.
   *
   * @param string $dest
   *   The folder to save files to. Leave empty to not set that.
   *
   * @return string
   *   The name of the content type that was created.
   */
  protected function createContentTypeWithFileField($dest = '') {
    $typename = $this->createContentType(array(), array(
      'files' => array(
        'type' => 'file',
        'instance_settings' => array(
          'instance[settings][file_extensions]' => 'png, gif, jpg, jpeg',
        ),
      ),
    ));

    // Set a destination folder, if given.
    if ($dest) {
      $edit = array(
        'instance[settings][file_directory]' => $dest,
      );
      $this->drupalPost('admin/structure/types/manage/' . $typename . '/fields/field_files', $edit, t('Save settings'));
    }

    return $typename;
  }

  /**
   * Checks if SimplePie is available and eventually downloads it.
   */
  protected function requireSimplePie() {
    if (!feeds_simplepie_exists()) {
      $this->downloadExtractSimplePie('1.3');
      $this->assertTrue(feeds_simplepie_exists());
      // Reset all the caches!
      $this->resetAll();
    }
  }

  /**
   * Lists test files.
   */
  protected function listTestFiles() {
    return array(
      'tubing.jpeg',
      'foosball.jpeg',
      'attersee.jpeg',
      'hstreet.jpeg',
      'la fayette.jpeg',
    );
  }

  /**
   * Lists test files mapping.
   *
   * Used to rename images so the ::testFileExistsReplace() test can check if
   * they are replaced on import.
   *
   * @see testFileExistsReplace()
   */
  protected function listTestFilesNameMap() {
    return array(
      'la fayette.jpeg' => 'tubing.jpeg',
      'tubing.jpeg' => 'foosball.jpeg',
      'foosball.jpeg' => 'attersee.jpeg',
      'attersee.jpeg' => 'hstreet.jpeg',
      'hstreet.jpeg' => 'la fayette.jpeg',
    );
  }

}