1 files changed, 56 insertions, 0 deletions
diff --git a/toolkit/components/places/tests/bookmarks/test_477583_json-backup-in-future.js b/toolkit/components/places/tests/bookmarks/test_477583_json-backup-in-future.js
new file mode 100644
index 0000000000..ab4f4a02d5
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+++ b/toolkit/components/places/tests/bookmarks/test_477583_json-backup-in-future.js
@@ -0,0 +1,56 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+add_task(async function test_json_backup_in_future() {
+  let backupFolder = await PlacesBackups.getBackupFolder();
+  let bookmarksBackupDir = new FileUtils.File(backupFolder);
+  // Remove all files from backups folder.
+  let files = bookmarksBackupDir.directoryEntries;
+  while (files.hasMoreElements()) {
+    let entry = files.nextFile;
+    entry.remove(false);
+  }
+
+  // Create a json dummy backup in the future.
+  let dateObj = new Date();
+  dateObj.setYear(dateObj.getFullYear() + 1);
+  let name = PlacesBackups.getFilenameForDate(dateObj);
+  Assert.equal(
+    name,
+    "bookmarks-" + PlacesBackups.toISODateString(dateObj) + ".json"
+  );
+  files = bookmarksBackupDir.directoryEntries;
+  while (files.hasMoreElements()) {
+    let entry = files.nextFile;
+    if (PlacesBackups.filenamesRegex.test(entry.leafName)) {
+      entry.remove(false);
+    }
+  }
+
+  let futureBackupFile = bookmarksBackupDir.clone();
+  futureBackupFile.append(name);
+  futureBackupFile.create(Ci.nsIFile.NORMAL_FILE_TYPE, 0o600);
+  Assert.ok(futureBackupFile.exists());
+
+  Assert.equal((await PlacesBackups.getBackupFiles()).length, 0);
+
+  await PlacesBackups.create();
+  // Check that a backup for today has been created.
+  Assert.equal((await PlacesBackups.getBackupFiles()).length, 1);
+  let mostRecentBackupFile = await PlacesBackups.getMostRecentBackup();
+  Assert.notEqual(mostRecentBackupFile, null);
+  Assert.ok(
+    PlacesBackups.filenamesRegex.test(PathUtils.filename(mostRecentBackupFile))
+  );
+
+  // Check that future backup has been removed.
+  Assert.ok(!futureBackupFile.exists());
+
+  // Cleanup.
+  mostRecentBackupFile = new FileUtils.File(mostRecentBackupFile);
+  mostRecentBackupFile.remove(false);
+  Assert.ok(!mostRecentBackupFile.exists());
+});