1 files changed, 53 insertions, 0 deletions
diff --git a/browser/components/extensions/test/browser/browser_ext_windows_remove.js b/browser/components/extensions/test/browser/browser_ext_windows_remove.js
new file mode 100644
index 0000000000..455987a908
--- /dev/null
+++ b/browser/components/extensions/test/browser/browser_ext_windows_remove.js
@@ -0,0 +1,53 @@
+/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set sts=2 sw=2 et tw=80: */
+"use strict";
+
+add_task(async function testWindowRemove() {
+  let extension = ExtensionTestUtils.loadExtension({
+    async background() {
+      async function closeWindow(id) {
+        let window = await browser.windows.get(id);
+        return new Promise(function (resolve) {
+          browser.windows.onRemoved.addListener(async function listener(
+            windowId
+          ) {
+            browser.windows.onRemoved.removeListener(listener);
+            await browser.test.assertEq(
+              windowId,
+              window.id,
+              "The right window was closed"
+            );
+            await browser.test.assertRejects(
+              browser.windows.get(windowId),
+              new RegExp(`Invalid window ID: ${windowId}`),
+              "The window was really closed."
+            );
+            resolve();
+          });
+          browser.windows.remove(id);
+        });
+      }
+
+      browser.test.log("Create a new window and close it by its ID");
+      let newWindow = await browser.windows.create();
+      await closeWindow(newWindow.id);
+
+      browser.test.log("Create a new window and close it by WINDOW_ID_CURRENT");
+      await browser.windows.create();
+      await closeWindow(browser.windows.WINDOW_ID_CURRENT);
+
+      browser.test.log("Assert failure for bad parameter.");
+      await browser.test.assertThrows(
+        () => browser.windows.remove(-3),
+        /-3 is too small \(must be at least -2\)/,
+        "Invalid windowId throws"
+      );
+
+      browser.test.notifyPass("window-remove");
+    },
+  });
+
+  await extension.startup();
+  await extension.awaitFinish("window-remove");
+  await extension.unload();
+});