1 files changed, 76 insertions, 0 deletions
diff --git a/comm/mailnews/imap/test/unit/test_lsub.js b/comm/mailnews/imap/test/unit/test_lsub.js
new file mode 100644
index 0000000000..1d7f479a48
--- /dev/null
+++ b/comm/mailnews/imap/test/unit/test_lsub.js
@@ -0,0 +1,76 @@
+/* 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/. */
+
+// Test that listing subscribed mailboxes uses LIST (SUBSCRIBED) instead of LSUB
+// for servers that have LIST-EXTENDED capability
+// see: bug 495318
+// see: RFC 5258 - http://tools.ietf.org/html/rfc5258
+
+var { PromiseTestUtils } = ChromeUtils.import(
+  "resource://testing-common/mailnews/PromiseTestUtils.jsm"
+);
+
+add_setup(function () {
+  setupIMAPPump();
+
+  Services.prefs.setBoolPref(
+    "mail.server.server1.autosync_offline_stores",
+    false
+  );
+});
+
+// Setup the mailboxes that will be used for this test.
+add_setup(async function () {
+  IMAPPump.mailbox.subscribed = true;
+  IMAPPump.daemon.createMailbox("folder1", {
+    subscribed: true,
+    flags: ["\\Noselect"],
+  });
+  IMAPPump.daemon.createMailbox("folder1/folder11", {
+    subscribed: true,
+    flags: ["\\Noinferiors"],
+  });
+  IMAPPump.daemon.createMailbox("folder2", {
+    subscribed: true,
+    nonExistent: true,
+  });
+  IMAPPump.daemon.createMailbox("folder3", {});
+
+  // select the inbox to force folder discovery, etc.
+  let listener = new PromiseTestUtils.PromiseUrlListener();
+  IMAPPump.inbox.updateFolderWithListener(null, listener);
+  await listener.promise;
+});
+
+// Tests that LSUB returns the proper response.
+add_task(function testLsub() {
+  // Check that we have \Noselect and \Noinferiors flags - these would not have
+  // been returned if we had used LSUB instead of LIST(SUBSCRIBED).
+  let rootFolder = IMAPPump.incomingServer.rootFolder;
+  let folder1 = rootFolder.getChildNamed("folder1");
+  Assert.ok(folder1.getFlag(Ci.nsMsgFolderFlags.ImapNoselect));
+  Assert.ok(!folder1.getFlag(Ci.nsMsgFolderFlags.ImapNoinferiors));
+
+  // Make sure the above test was not a fluke.
+  let folder11 = folder1.getChildNamed("folder11");
+  Assert.ok(!folder11.getFlag(Ci.nsMsgFolderFlags.ImapNoselect));
+  Assert.ok(folder11.getFlag(Ci.nsMsgFolderFlags.ImapNoinferiors));
+
+  // Test that \NonExistent implies \Noselect.
+  rootFolder.getChildNamed("folder2");
+  Assert.ok(folder1.getFlag(Ci.nsMsgFolderFlags.ImapNoselect));
+
+  // Should not get a folder3 since it is not subscribed.
+  let folder3;
+  try {
+    folder3 = rootFolder.getChildNamed("folder3");
+  } catch (ex) {}
+  Assert.equal(false, folder1.getFlag(Ci.nsMsgFolderFlags.Subscribed));
+  Assert.equal(null, folder3);
+});
+
+// Cleanup at end.
+add_task(function endTest() {
+  teardownIMAPPump();
+});