gecko/toolkit/components/places/tests/unit/test_utils_backups_create.js

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 * The Original Code is Places unit test code.
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 * Contributor(s):
 *   Marco Bonardo <mak77@bonardo.net> (Original Author)
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 /**
  * Check for correct functionality of PlacesUtils.archiveBookmarksFile
  */

Components.utils.import("resource://gre/modules/utils.js");

const PREFIX = "bookmarks-";
// The localized prefix must be "bigger" and associated to older backups.
const LOCALIZED_PREFIX = "segnalibri-";
const SUFFIX = ".json";
const NUMBER_OF_BACKUPS = 10;

function run_test() {
  // Generate random dates.
  var dateObj = new Date();
  var dates = [];
  while (dates.length < NUMBER_OF_BACKUPS) {
    // Use last year to ensure today's backup is the newest.
    let randomDate = new Date(dateObj.getFullYear() - 1,
                              Math.floor(12 * Math.random()),
                              Math.floor(28 * Math.random()));
    let dateString = randomDate.toLocaleFormat("%Y-%m-%d");
    if (dates.indexOf(dateString) == -1)
      dates.push(dateString);
  }
  // Sort dates from oldest to newest.
  dates.sort();

  // Get and cleanup the backups folder.
  var bookmarksBackupDir = PlacesUtils.backups.folder;

  // Fake backups are created backwards to ensure we won't consider file
  // creation time.
  // Create fake backups for the newest dates.
  for (let i = dates.length - 1; i >= 0; i--) {
    let backupFilename;
    if (i > Math.floor(dates.length/2))
      backupFilename = PREFIX + dates[i] + SUFFIX;
    else
      backupFilename = LOCALIZED_PREFIX + dates[i] + SUFFIX;
    dump("creating: " + backupFilename + "\n");
    let backupFile = bookmarksBackupDir.clone();
    backupFile.append(backupFilename);
    backupFile.create(Ci.nsIFile.NORMAL_FILE_TYPE, 0666);
    do_check_true(backupFile.exists());
  }
 
  // Replace PlacesUtils getFormattedString so that it will return the localized
  // string we want.
  PlacesUtils.getFormattedString = function (aKey, aValue) {
    return LOCALIZED_PREFIX + aValue;
  }

  PlacesUtils.backups.create(Math.floor(dates.length/2));
  // Add today's backup.
  dates.push(dateObj.toLocaleFormat("%Y-%m-%d"));

  // Check backups.
  for (var i = 0; i < dates.length; i++) {
    let backupFilename;
    let shouldExist;
    if (i > Math.floor(dates.length/2)) {
      backupFilename = PREFIX + dates[i] + SUFFIX;
      shouldExist = true;
    }
    else {
      backupFilename = LOCALIZED_PREFIX + dates[i] + SUFFIX;
      shouldExist = false;
    }
    var backupFile = bookmarksBackupDir.clone();
    backupFile.append(backupFilename);
    if (backupFile.exists() != shouldExist)
      do_throw("Backup should " + (shouldExist ? "" : "not") + " exist: " + backupFilename);
  }

  // Cleanup backups folder.
  bookmarksBackupDir.remove(true);
  do_check_false(bookmarksBackupDir.exists());
  // Recreate the folder.
  PlacesUtils.backups.folder;
}