1 files changed, 48 insertions, 0 deletions
diff --git a/tools/addon-sdk-1.7/packages/api-utils/tests/test-window-observer.js b/tools/addon-sdk-1.7/packages/api-utils/tests/test-window-observer.js
new file mode 100644
index 0000000..687df04
--- /dev/null
+++ b/tools/addon-sdk-1.7/packages/api-utils/tests/test-window-observer.js
@@ -0,0 +1,48 @@
+/* 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";
+
+const { Loader } = require("./helpers");
+
+exports["test unload window observer"] = function(assert, done) {
+  // Hacky way to be able to create unloadable modules via makeSandboxedLoader.
+  let loader = Loader(module);
+
+  let utils = loader.require("api-utils/window-utils");
+  let { isBrowser, activeBrowserWindow: activeWindow } = utils;
+  let observer = loader.require("api-utils/windows/observer").observer;
+  let opened = 0;
+  let closed = 0;
+
+  observer.on("open", function onOpen(window) {
+    // Ignoring non-browser windows
+    if (isBrowser(window))
+      opened++;
+  });
+  observer.on("close", function onClose(window) {
+    // Ignore non-browser windows & already opened `activeWindow` (unload will
+    // emit close on it even though it is not actually closed).
+    if (isBrowser(window) && window !== activeWindow)
+      closed++;
+  });
+
+  // Open window and close it to trigger observers.
+  activeWindow.open().close();
+
+  // Unload the module so that all listeners set by observer are removed.
+  loader.unload();
+
+  // Open and close window once again.
+  activeWindow.open().close();
+
+  // Enqueuing asserts to make sure that assertion is not performed early.
+  require("timer").setTimeout(function () {
+    assert.equal(1, opened, "observer open was called before unload only");
+    assert.equal(1, closed, "observer close was called before unload only");
+    done();
+  }, 0);
+};
+
+require("test").run(exports);