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diff --git a/test/lisp/edmacro-tests.el b/test/lisp/edmacro-tests.el
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+;;; edmacro-tests.el --- Tests for edmacro.el  -*- lexical-binding:t -*-
+
+;; Copyright (C) 2021-2022 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 'edmacro)
+
+(ert-deftest edmacro-test-edmacro-parse-keys ()
+  (should (equal (edmacro-parse-keys "") ""))
+  (should (equal (edmacro-parse-keys "x") "x"))
+  (should (equal (edmacro-parse-keys "C-a") "\C-a"))
+
+  ;; comments
+  (should (equal (edmacro-parse-keys ";; foobar") ""))
+  (should (equal (edmacro-parse-keys ";;;") ""))
+  (should (equal (edmacro-parse-keys "; ; ;") ";;;"))
+  (should (equal (edmacro-parse-keys "REM foobar") ""))
+  (should (equal (edmacro-parse-keys "x ;; foobar") "x"))
+  (should (equal (edmacro-parse-keys "x REM foobar") "x"))
+  (should (equal (edmacro-parse-keys "<<goto-line>>")
+                 [134217848 103 111 116 111 45 108 105 110 101 13]))
+
+  ;; repetitions
+  (should (equal (edmacro-parse-keys "3*x") "xxx"))
+  (should (equal (edmacro-parse-keys "3*C-m") "\C-m\C-m\C-m"))
+  (should (equal (edmacro-parse-keys "10*foo") "foofoofoofoofoofoofoofoofoofoo")))
+
+;;; edmacro-tests.el ends here