--- /dev/null
+;;; animate-tests.el --- Tests for animate.el -*- lexical-binding:t -*-
+
+;; Copyright (C) 2020 Free Software Foundation, Inc.
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;; Code:
+
+(require 'ert)
+(require 'animate)
+
+(ert-deftest animate-test-birthday-present ()
+ (unwind-protect
+ (save-window-excursion
+ (cl-letf (((symbol-function 'sit-for) (lambda (_) nil)))
+ (animate-birthday-present "foo")
+ (should (equal (buffer-string)
+ "
+
+
+
+
+
+Happy Birthday,
+ Foo
+
+
+ You are my sunshine,
+ My only sunshine.
+ I'm awful sad that
+ You've moved away.
+
+ Let's talk together
+ And love more deeply.
+ Please bring back
+ my sunshine
+ to stay!"))))
+ (kill-buffer "*A-Present-for-Foo*")))
+
+(provide 'animate-tests)
+;;; animate-tests.el ends here