diff options
Diffstat (limited to 'test/lisp/emacs-lisp/seq-tests.el')
| -rw-r--r-- | test/lisp/emacs-lisp/seq-tests.el | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/lisp/emacs-lisp/seq-tests.el b/test/lisp/emacs-lisp/seq-tests.el index 3b22e42df24..1a27467d292 100644 --- a/test/lisp/emacs-lisp/seq-tests.el +++ b/test/lisp/emacs-lisp/seq-tests.el @@ -559,5 +559,23 @@ Evaluate BODY for each created sequence. (should (equal (seq-split seq 3) '("012" "345" "678" "9"))))) +(ert-deftest test-seq-uniq-list () + (let ((list '(1 2 3))) + (should (equal (seq-uniq (append list list)) '(1 2 3)))) + (let ((list '(1 2 3 2 1))) + (should (equal (seq-uniq list) '(1 2 3)))) + (let ((list (list (substring "1") + (substring "2") + (substring "3") + (substring "2") + (substring "1")))) + (should (equal (seq-uniq list) '("1" "2" "3"))) + (should (equal (seq-uniq list #'eq) '("1" "2" "3" "2" "1")))) + ;; Long lists have a different code path. + (let ((list (seq-map-indexed (lambda (_ i) i) + (make-list 10000 nil)))) + (should (= (length list) 10000)) + (should (= (length (seq-uniq (append list list))) 10000)))) + (provide 'seq-tests) ;;; seq-tests.el ends here |