1 files changed, 13 insertions, 4 deletions
diff --git a/test/src/keymap-tests.el b/test/src/keymap-tests.el
index bc9977f31bf..04b897045db 100644
--- a/test/src/keymap-tests.el
+++ b/test/src/keymap-tests.el
@@ -23,6 +23,7 @@
 ;;; Code:
 
 (require 'ert)
+(require 'cl-lib)
 
 (defun keymap-tests--make-keymap-test (fun)
   (should (eq (car (funcall fun)) 'keymap))
@@ -470,10 +471,18 @@ g .. h		foo
        ert-keymap-duplicate
        "a" #'next-line
        "a" #'previous-line))
-  (should-error
-   (define-keymap
-       "a" #'next-line
-       "a" #'previous-line)))
+  (let ((msg ""))
+    ;; FIXME: It would be nicer to use `current-message' rather than override
+    ;; `message', but `current-message' returns always nil in batch mode :-(
+    (cl-letf (((symbol-function 'message)
+               (lambda (fmt &rest args) (setq msg (apply #'format fmt args)))))
+      (should
+       (string-match "duplicate"
+                     (progn
+                       (define-keymap
+                         "a" #'next-line
+                         "a" #'previous-line)
+                       msg))))))
 
 (ert-deftest keymap-unset-test-remove-and-inheritance ()
   "Check various behaviors of keymap-unset.  (Bug#62207)"