1 files changed, 29 insertions, 0 deletions
diff --git a/browser/components/migration/tests/browser/browser_dialog_resize.js b/browser/components/migration/tests/browser/browser_dialog_resize.js
new file mode 100644
index 0000000000..8fb05faf2c
--- /dev/null
+++ b/browser/components/migration/tests/browser/browser_dialog_resize.js
@@ -0,0 +1,29 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Tests that if the MigrationWizard resizes when opened inside of a
+ * XUL window, that it causes the containing XUL window to resize
+ * appropriately.
+ */
+add_task(async function test_migration_dialog_resize_in_xul_window() {
+  let windowOpened = BrowserTestUtils.domWindowOpened();
+  MigrationUtils.showMigrationWizard(null, {});
+  let dialogWin = await windowOpened;
+
+  await BrowserTestUtils.waitForEvent(dialogWin, "MigrationWizard:Ready");
+
+  let wizard = dialogWin.document.body.querySelector("#wizard");
+  let height = wizard.getBoundingClientRect().height;
+
+  let windowResizePromise = BrowserTestUtils.waitForEvent(dialogWin, "resize");
+  wizard.style.height = height + 100 + "px";
+  await windowResizePromise;
+  Assert.ok(true, "Migration dialog window resized.");
+
+  let dialogClosed = BrowserTestUtils.domWindowClosed(dialogWin);
+  dialogWin.close();
+  await dialogClosed;
+});