Move cyclic tests to fns-tests.el

* test/src/fns-tests.el (cyc1, cyc2, dot1, dot2): New functions.
(test-cycle-length, test-cycle-safe-length, test-cycle-member)
(test-cycle-memq, test-cycle-memql, test-cycle-assq)
(test-cycle-assoc, test-cycle-rassq, test-cycle-rassoc)
(test-cycle-delq, test-cycle-delete, test-cycle-reverse)
(test-cycle-plist-get, test-cycle-lax-plist-get)
(test-cycle-plist-member, test-cycle-plist-put)
(test-cycle-lax-plist-put, test-cycle-equal, test-cycle-nconc):
New tests.
* test/manual/cyclic-tests.el: File deleted.

2 files changed, 298 insertions, 314 deletions

diff --git a/test/manual/cycle-tests.el b/test/manual/cycle-tests.el
deleted file mode 100644
index 2632b2d7b54..00000000000
--- a/test/manual/cycle-tests.el
+++ /dev/null
@@ -1,314 +0,0 @@
-;;; Test handling of cyclic and dotted lists    -*- lexical-binding: t; -*-
-
-;; Copyright 2017 Free Software Foundation, Inc.
-
-;; Written by Paul Eggert
-
-;; This program 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.
-
-;; This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
-
-(require 'ert)
-
-(defun cyc1 (a)
-  (let ((ls (make-list 10 a)))
-    (nconc ls ls)
-    ls))
-(defun cyc2 (a b)
-  (let ((ls1 (make-list 10 a))
-        (ls2 (make-list 1000 b)))
-    (nconc ls2 ls2)
-    (nconc ls1 ls2)
-    ls1))
-
-(defun dot1 (a)
-  (let ((ls (make-list 10 a)))
-    (nconc ls 'tail)
-    ls))
-(defun dot2 (a b)
-  (let ((ls1 (make-list 10 a))
-        (ls2 (make-list 10 b)))
-    (nconc ls1 ls2)
-    (nconc ls2 'tail)
-    ls1))
-
-(ert-deftest test-cycle-length ()
-  (should-error (length (cyc1 1)) :type 'circular-list)
-  (should-error (length (cyc2 1 2)) :type 'circular-list)
-  (should-error (length (dot1 1)) :type 'wrong-type-argument)
-  (should-error (length (dot2 1 2)) :type 'wrong-type-argument))
-
-(ert-deftest test-cycle-safe-length ()
-  (should (<= 10 (safe-length (cyc1 1))))
-  (should (<= 1010 (safe-length (cyc2 1 2))))
-  (should (= 10 (safe-length (dot1 1))))
-  (should (= 20 (safe-length (dot2 1 2)))))
-
-(ert-deftest test-cycle-member ()
-  (let ((c1 (cyc1 1))
-        (c2 (cyc2 1 2))
-        (d1 (dot1 1))
-        (d2 (dot2 1 2)))
-    (should (member 1 c1))
-    (should (member 1 c2))
-    (should (member 1 d1))
-    (should (member 1 d2))
-    (should-error (member 2 c1) :type 'circular-list)
-    (should (member 2 c2))
-    (should-error (member 2 d1) :type 'wrong-type-argument)
-    (should (member 2 d2))
-    (should-error (member 3 c1) :type 'circular-list)
-    (should-error (member 3 c2) :type 'circular-list)
-    (should-error (member 3 d1) :type 'wrong-type-argument)
-    (should-error (member 3 d2) :type 'wrong-type-argument)))
-
-(ert-deftest test-cycle-memq ()
-  (let ((c1 (cyc1 1))
-        (c2 (cyc2 1 2))
-        (d1 (dot1 1))
-        (d2 (dot2 1 2)))
-    (should (memq 1 c1))
-    (should (memq 1 c2))
-    (should (memq 1 d1))
-    (should (memq 1 d2))
-    (should-error (memq 2 c1) :type 'circular-list)
-    (should (memq 2 c2))
-    (should-error (memq 2 d1) :type 'wrong-type-argument)
-    (should (memq 2 d2))
-    (should-error (memq 3 c1) :type 'circular-list)
-    (should-error (memq 3 c2) :type 'circular-list)
-    (should-error (memq 3 d1) :type 'wrong-type-argument)
-    (should-error (memq 3 d2) :type 'wrong-type-argument)))
-
-(ert-deftest test-cycle-memql ()
-  (let ((c1 (cyc1 1))
-        (c2 (cyc2 1 2))
-        (d1 (dot1 1))
-        (d2 (dot2 1 2)))
-    (should (memql 1 c1))
-    (should (memql 1 c2))
-    (should (memql 1 d1))
-    (should (memql 1 d2))
-    (should-error (memql 2 c1) :type 'circular-list)
-    (should (memql 2 c2))
-    (should-error (memql 2 d1) :type 'wrong-type-argument)
-    (should (memql 2 d2))
-    (should-error (memql 3 c1) :type 'circular-list)
-    (should-error (memql 3 c2) :type 'circular-list)
-    (should-error (memql 3 d1) :type 'wrong-type-argument)
-    (should-error (memql 3 d2) :type 'wrong-type-argument)))
-
-(ert-deftest test-cycle-assq ()
-  (let ((c1 (cyc1 '(1)))
-        (c2 (cyc2 '(1) '(2)))
-        (d1 (dot1 '(1)))
-        (d2 (dot2 '(1) '(2))))
-    (should (assq 1 c1))
-    (should (assq 1 c2))
-    (should (assq 1 d1))
-    (should (assq 1 d2))
-    (should-error (assq 2 c1) :type 'circular-list)
-    (should (assq 2 c2))
-    (should-error (assq 2 d1) :type 'wrong-type-argument)
-    (should (assq 2 d2))
-    (should-error (assq 3 c1) :type 'circular-list)
-    (should-error (assq 3 c2) :type 'circular-list)
-    (should-error (assq 3 d1) :type 'wrong-type-argument)
-    (should-error (assq 3 d2) :type 'wrong-type-argument)))
-
-(ert-deftest test-cycle-assoc ()
-  (let ((c1 (cyc1 '(1)))
-        (c2 (cyc2 '(1) '(2)))
-        (d1 (dot1 '(1)))
-        (d2 (dot2 '(1) '(2))))
-    (should (assoc 1 c1))
-    (should (assoc 1 c2))
-    (should (assoc 1 d1))
-    (should (assoc 1 d2))
-    (should-error (assoc 2 c1) :type 'circular-list)
-    (should (assoc 2 c2))
-    (should-error (assoc 2 d1) :type 'wrong-type-argument)
-    (should (assoc 2 d2))
-    (should-error (assoc 3 c1) :type 'circular-list)
-    (should-error (assoc 3 c2) :type 'circular-list)
-    (should-error (assoc 3 d1) :type 'wrong-type-argument)
-    (should-error (assoc 3 d2) :type 'wrong-type-argument)))
-
-(ert-deftest test-cycle-rassq ()
-  (let ((c1 (cyc1 '(0 . 1)))
-        (c2 (cyc2 '(0 . 1) '(0 . 2)))
-        (d1 (dot1 '(0 . 1)))
-        (d2 (dot2 '(0 . 1) '(0 . 2))))
-    (should (rassq 1 c1))
-    (should (rassq 1 c2))
-    (should (rassq 1 d1))
-    (should (rassq 1 d2))
-    (should-error (rassq 2 c1) :type 'circular-list)
-    (should (rassq 2 c2))
-    (should-error (rassq 2 d1) :type 'wrong-type-argument)
-    (should (rassq 2 d2))
-    (should-error (rassq 3 c1) :type 'circular-list)
-    (should-error (rassq 3 c2) :type 'circular-list)
-    (should-error (rassq 3 d1) :type 'wrong-type-argument)
-    (should-error (rassq 3 d2) :type 'wrong-type-argument)))
-
-(ert-deftest test-cycle-rassoc ()
-  (let ((c1 (cyc1 '(0 . 1)))
-        (c2 (cyc2 '(0 . 1) '(0 . 2)))
-        (d1 (dot1 '(0 . 1)))
-        (d2 (dot2 '(0 . 1) '(0 . 2))))
-    (should (rassoc 1 c1))
-    (should (rassoc 1 c2))
-    (should (rassoc 1 d1))
-    (should (rassoc 1 d2))
-    (should-error (rassoc 2 c1) :type 'circular-list)
-    (should (rassoc 2 c2))
-    (should-error (rassoc 2 d1) :type 'wrong-type-argument)
-    (should (rassoc 2 d2))
-    (should-error (rassoc 3 c1) :type 'circular-list)
-    (should-error (rassoc 3 c2) :type 'circular-list)
-    (should-error (rassoc 3 d1) :type 'wrong-type-argument)
-    (should-error (rassoc 3 d2) :type 'wrong-type-argument)))
-
-(ert-deftest test-cycle-delq ()
-  (should-error (delq 1 (cyc1 1)) :type 'circular-list)
-  (should-error (delq 1 (cyc2 1 2)) :type 'circular-list)
-  (should-error (delq 1 (dot1 1)) :type 'wrong-type-argument)
-  (should-error (delq 1 (dot2 1 2)) :type 'wrong-type-argument)
-  (should-error (delq 2 (cyc1 1)) :type 'circular-list)
-  (should-error (delq 2 (cyc2 1 2)) :type 'circular-list)
-  (should-error (delq 2 (dot1 1)) :type 'wrong-type-argument)
-  (should-error (delq 2 (dot2 1 2)) :type 'wrong-type-argument)
-  (should-error (delq 3 (cyc1 1)) :type 'circular-list)
-  (should-error (delq 3 (cyc2 1 2)) :type 'circular-list)
-  (should-error (delq 3 (dot1 1)) :type 'wrong-type-argument)
-  (should-error (delq 3 (dot2 1 2)) :type 'wrong-type-argument))
-
-(ert-deftest test-cycle-delete ()
-  (should-error (delete 1 (cyc1 1)) :type 'circular-list)
-  (should-error (delete 1 (cyc2 1 2)) :type 'circular-list)
-  (should-error (delete 1 (dot1 1)) :type 'wrong-type-argument)
-  (should-error (delete 1 (dot2 1 2)) :type 'wrong-type-argument)
-  (should-error (delete 2 (cyc1 1)) :type 'circular-list)
-  (should-error (delete 2 (cyc2 1 2)) :type 'circular-list)
-  (should-error (delete 2 (dot1 1)) :type 'wrong-type-argument)
-  (should-error (delete 2 (dot2 1 2)) :type 'wrong-type-argument)
-  (should-error (delete 3 (cyc1 1)) :type 'circular-list)
-  (should-error (delete 3 (cyc2 1 2)) :type 'circular-list)
-  (should-error (delete 3 (dot1 1)) :type 'wrong-type-argument)
-  (should-error (delete 3 (dot2 1 2)) :type 'wrong-type-argument))
-
-(ert-deftest test-cycle-reverse ()
-  (should-error (reverse (cyc1 1)) :type 'circular-list)
-  (should-error (reverse (cyc2 1 2)) :type 'circular-list)
-  (should-error (reverse (dot1 1)) :type 'wrong-type-argument)
-  (should-error (reverse (dot2 1 2)) :type 'wrong-type-argument))
-
-(ert-deftest test-cycle-plist-get ()
-  (let ((c1 (cyc1 1))
-        (c2 (cyc2 1 2))
-        (d1 (dot1 1))
-        (d2 (dot2 1 2)))
-    (should (plist-get c1 1))
-    (should (plist-get c2 1))
-    (should (plist-get d1 1))
-    (should (plist-get d2 1))
-    (should-not (plist-get c1 2))
-    (should (plist-get c2 2))
-    (should-not (plist-get d1 2))
-    (should (plist-get d2 2))
-    (should-not (plist-get c1 3))
-    (should-not (plist-get c2 3))
-    (should-not (plist-get d1 3))
-    (should-not (plist-get d2 3))))
-
-(ert-deftest test-cycle-lax-plist-get ()
-  (let ((c1 (cyc1 1))
-        (c2 (cyc2 1 2))
-        (d1 (dot1 1))
-        (d2 (dot2 1 2)))
-    (should (lax-plist-get c1 1))
-    (should (lax-plist-get c2 1))
-    (should (lax-plist-get d1 1))
-    (should (lax-plist-get d2 1))
-    (should-error (lax-plist-get c1 2) :type 'circular-list)
-    (should (lax-plist-get c2 2))
-    (should-not (lax-plist-get d1 2))
-    (should (lax-plist-get d2 2))
-    (should-error (lax-plist-get c1 3) :type 'circular-list)
-    (should-error (lax-plist-get c2 3) :type 'circular-list)
-    (should-not (lax-plist-get d1 3))
-    (should-not (lax-plist-get d2 3))))
-
-(ert-deftest test-cycle-plist-member ()
-  (let ((c1 (cyc1 1))
-        (c2 (cyc2 1 2))
-        (d1 (dot1 1))
-        (d2 (dot2 1 2)))
-    (should (plist-member c1 1))
-    (should (plist-member c2 1))
-    (should (plist-member d1 1))
-    (should (plist-member d2 1))
-    (should-error (plist-member c1 2) :type 'circular-list)
-    (should (plist-member c2 2))
-    (should-error (plist-member d1 2) :type 'wrong-type-argument)
-    (should (plist-member d2 2))
-    (should-error (plist-member c1 3) :type 'circular-list)
-    (should-error (plist-member c2 3) :type 'circular-list)
-    (should-error (plist-member d1 3) :type 'wrong-type-argument)
-    (should-error (plist-member d2 3) :type 'wrong-type-argument)))
-
-(ert-deftest test-cycle-plist-put ()
-  (let ((c1 (cyc1 1))
-        (c2 (cyc2 1 2))
-        (d1 (dot1 1))
-        (d2 (dot2 1 2)))
-    (should (plist-put c1 1 1))
-    (should (plist-put c2 1 1))
-    (should (plist-put d1 1 1))
-    (should (plist-put d2 1 1))
-    (should-error (plist-put c1 2 2) :type 'circular-list)
-    (should (plist-put c2 2 2))
-    (should (plist-put d1 2 2))
-    (should (plist-put d2 2 2))
-    (should-error (plist-put c1 3 3) :type 'circular-list)
-    (should-error (plist-put c2 3 3) :type 'circular-list)
-    (should (plist-put d1 3 3))
-    (should (plist-put d2 3 3))))
-
-(ert-deftest test-cycle-lax-plist-put ()
-  (let ((c1 (cyc1 1))
-        (c2 (cyc2 1 2))
-        (d1 (dot1 1))
-        (d2 (dot2 1 2)))
-    (should (lax-plist-put c1 1 1))
-    (should (lax-plist-put c2 1 1))
-    (should (lax-plist-put d1 1 1))
-    (should (lax-plist-put d2 1 1))
-    (should-error (lax-plist-put c1 2 2) :type 'circular-list)
-    (should (lax-plist-put c2 2 2))
-    (should (lax-plist-put d1 2 2))
-    (should (lax-plist-put d2 2 2))
-    (should-error (lax-plist-put c1 3 3) :type 'circular-list)
-    (should-error (lax-plist-put c2 3 3) :type 'circular-list)
-    (should (lax-plist-put d1 3 3))
-    (should (lax-plist-put d2 3 3))))
-
-(ert-deftest test-cycle-equal ()
-  (should-error (equal (cyc1 1) (cyc1 1)))
-  (should-error (equal (cyc2 1 2) (cyc2 1 2))))
-
-(ert-deftest test-cycle-nconc ()
-  (should-error (nconc (cyc1 1) 'tail) :type 'circular-list)
-  (should-error (nconc (cyc2 1 2) 'tail) :type 'circular-list))
-
-(provide 'cycle-tests)
diff --git a/test/src/fns-tests.el b/test/src/fns-tests.el
index ee3c5dc77e4..160d0f106e9 100644
--- a/test/src/fns-tests.el
+++ b/test/src/fns-tests.el
@@ -245,3 +245,301 @@
   (let ((data '((foo) (bar))))
     (should (equal (mapcan #'identity data) '(foo bar)))
     (should (equal data                     '((foo bar) (bar))))))
+
+;; Test handling of cyclic and dotted lists.
+
+(defun cyc1 (a)
+  (let ((ls (make-list 10 a)))
+    (nconc ls ls)
+    ls))
+
+(defun cyc2 (a b)
+  (let ((ls1 (make-list 10 a))
+        (ls2 (make-list 1000 b)))
+    (nconc ls2 ls2)
+    (nconc ls1 ls2)
+    ls1))
+
+(defun dot1 (a)
+  (let ((ls (make-list 10 a)))
+    (nconc ls 'tail)
+    ls))
+
+(defun dot2 (a b)
+  (let ((ls1 (make-list 10 a))
+        (ls2 (make-list 10 b)))
+    (nconc ls1 ls2)
+    (nconc ls2 'tail)
+    ls1))
+
+(ert-deftest test-cycle-length ()
+  (should-error (length (cyc1 1)) :type 'circular-list)
+  (should-error (length (cyc2 1 2)) :type 'circular-list)
+  (should-error (length (dot1 1)) :type 'wrong-type-argument)
+  (should-error (length (dot2 1 2)) :type 'wrong-type-argument))
+
+(ert-deftest test-cycle-safe-length ()
+  (should (<= 10 (safe-length (cyc1 1))))
+  (should (<= 1010 (safe-length (cyc2 1 2))))
+  (should (= 10 (safe-length (dot1 1))))
+  (should (= 20 (safe-length (dot2 1 2)))))
+
+(ert-deftest test-cycle-member ()
+  (let ((c1 (cyc1 1))
+        (c2 (cyc2 1 2))
+        (d1 (dot1 1))
+        (d2 (dot2 1 2)))
+    (should (member 1 c1))
+    (should (member 1 c2))
+    (should (member 1 d1))
+    (should (member 1 d2))
+    (should-error (member 2 c1) :type 'circular-list)
+    (should (member 2 c2))
+    (should-error (member 2 d1) :type 'wrong-type-argument)
+    (should (member 2 d2))
+    (should-error (member 3 c1) :type 'circular-list)
+    (should-error (member 3 c2) :type 'circular-list)
+    (should-error (member 3 d1) :type 'wrong-type-argument)
+    (should-error (member 3 d2) :type 'wrong-type-argument)))
+
+(ert-deftest test-cycle-memq ()
+  (let ((c1 (cyc1 1))
+        (c2 (cyc2 1 2))
+        (d1 (dot1 1))
+        (d2 (dot2 1 2)))
+    (should (memq 1 c1))
+    (should (memq 1 c2))
+    (should (memq 1 d1))
+    (should (memq 1 d2))
+    (should-error (memq 2 c1) :type 'circular-list)
+    (should (memq 2 c2))
+    (should-error (memq 2 d1) :type 'wrong-type-argument)
+    (should (memq 2 d2))
+    (should-error (memq 3 c1) :type 'circular-list)
+    (should-error (memq 3 c2) :type 'circular-list)
+    (should-error (memq 3 d1) :type 'wrong-type-argument)
+    (should-error (memq 3 d2) :type 'wrong-type-argument)))
+
+(ert-deftest test-cycle-memql ()
+  (let ((c1 (cyc1 1))
+        (c2 (cyc2 1 2))
+        (d1 (dot1 1))
+        (d2 (dot2 1 2)))
+    (should (memql 1 c1))
+    (should (memql 1 c2))
+    (should (memql 1 d1))
+    (should (memql 1 d2))
+    (should-error (memql 2 c1) :type 'circular-list)
+    (should (memql 2 c2))
+    (should-error (memql 2 d1) :type 'wrong-type-argument)
+    (should (memql 2 d2))
+    (should-error (memql 3 c1) :type 'circular-list)
+    (should-error (memql 3 c2) :type 'circular-list)
+    (should-error (memql 3 d1) :type 'wrong-type-argument)
+    (should-error (memql 3 d2) :type 'wrong-type-argument)))
+
+(ert-deftest test-cycle-assq ()
+  (let ((c1 (cyc1 '(1)))
+        (c2 (cyc2 '(1) '(2)))
+        (d1 (dot1 '(1)))
+        (d2 (dot2 '(1) '(2))))
+    (should (assq 1 c1))
+    (should (assq 1 c2))
+    (should (assq 1 d1))
+    (should (assq 1 d2))
+    (should-error (assq 2 c1) :type 'circular-list)
+    (should (assq 2 c2))
+    (should-error (assq 2 d1) :type 'wrong-type-argument)
+    (should (assq 2 d2))
+    (should-error (assq 3 c1) :type 'circular-list)
+    (should-error (assq 3 c2) :type 'circular-list)
+    (should-error (assq 3 d1) :type 'wrong-type-argument)
+    (should-error (assq 3 d2) :type 'wrong-type-argument)))
+
+(ert-deftest test-cycle-assoc ()
+  (let ((c1 (cyc1 '(1)))
+        (c2 (cyc2 '(1) '(2)))
+        (d1 (dot1 '(1)))
+        (d2 (dot2 '(1) '(2))))
+    (should (assoc 1 c1))
+    (should (assoc 1 c2))
+    (should (assoc 1 d1))
+    (should (assoc 1 d2))
+    (should-error (assoc 2 c1) :type 'circular-list)
+    (should (assoc 2 c2))
+    (should-error (assoc 2 d1) :type 'wrong-type-argument)
+    (should (assoc 2 d2))
+    (should-error (assoc 3 c1) :type 'circular-list)
+    (should-error (assoc 3 c2) :type 'circular-list)
+    (should-error (assoc 3 d1) :type 'wrong-type-argument)
+    (should-error (assoc 3 d2) :type 'wrong-type-argument)))
+
+(ert-deftest test-cycle-rassq ()
+  (let ((c1 (cyc1 '(0 . 1)))
+        (c2 (cyc2 '(0 . 1) '(0 . 2)))
+        (d1 (dot1 '(0 . 1)))
+        (d2 (dot2 '(0 . 1) '(0 . 2))))
+    (should (rassq 1 c1))
+    (should (rassq 1 c2))
+    (should (rassq 1 d1))
+    (should (rassq 1 d2))
+    (should-error (rassq 2 c1) :type 'circular-list)
+    (should (rassq 2 c2))
+    (should-error (rassq 2 d1) :type 'wrong-type-argument)
+    (should (rassq 2 d2))
+    (should-error (rassq 3 c1) :type 'circular-list)
+    (should-error (rassq 3 c2) :type 'circular-list)
+    (should-error (rassq 3 d1) :type 'wrong-type-argument)
+    (should-error (rassq 3 d2) :type 'wrong-type-argument)))
+
+(ert-deftest test-cycle-rassoc ()
+  (let ((c1 (cyc1 '(0 . 1)))
+        (c2 (cyc2 '(0 . 1) '(0 . 2)))
+        (d1 (dot1 '(0 . 1)))
+        (d2 (dot2 '(0 . 1) '(0 . 2))))
+    (should (rassoc 1 c1))
+    (should (rassoc 1 c2))
+    (should (rassoc 1 d1))
+    (should (rassoc 1 d2))
+    (should-error (rassoc 2 c1) :type 'circular-list)
+    (should (rassoc 2 c2))
+    (should-error (rassoc 2 d1) :type 'wrong-type-argument)
+    (should (rassoc 2 d2))
+    (should-error (rassoc 3 c1) :type 'circular-list)
+    (should-error (rassoc 3 c2) :type 'circular-list)
+    (should-error (rassoc 3 d1) :type 'wrong-type-argument)
+    (should-error (rassoc 3 d2) :type 'wrong-type-argument)))
+
+(ert-deftest test-cycle-delq ()
+  (should-error (delq 1 (cyc1 1)) :type 'circular-list)
+  (should-error (delq 1 (cyc2 1 2)) :type 'circular-list)
+  (should-error (delq 1 (dot1 1)) :type 'wrong-type-argument)
+  (should-error (delq 1 (dot2 1 2)) :type 'wrong-type-argument)
+  (should-error (delq 2 (cyc1 1)) :type 'circular-list)
+  (should-error (delq 2 (cyc2 1 2)) :type 'circular-list)
+  (should-error (delq 2 (dot1 1)) :type 'wrong-type-argument)
+  (should-error (delq 2 (dot2 1 2)) :type 'wrong-type-argument)
+  (should-error (delq 3 (cyc1 1)) :type 'circular-list)
+  (should-error (delq 3 (cyc2 1 2)) :type 'circular-list)
+  (should-error (delq 3 (dot1 1)) :type 'wrong-type-argument)
+  (should-error (delq 3 (dot2 1 2)) :type 'wrong-type-argument))
+
+(ert-deftest test-cycle-delete ()
+  (should-error (delete 1 (cyc1 1)) :type 'circular-list)
+  (should-error (delete 1 (cyc2 1 2)) :type 'circular-list)
+  (should-error (delete 1 (dot1 1)) :type 'wrong-type-argument)
+  (should-error (delete 1 (dot2 1 2)) :type 'wrong-type-argument)
+  (should-error (delete 2 (cyc1 1)) :type 'circular-list)
+  (should-error (delete 2 (cyc2 1 2)) :type 'circular-list)
+  (should-error (delete 2 (dot1 1)) :type 'wrong-type-argument)
+  (should-error (delete 2 (dot2 1 2)) :type 'wrong-type-argument)
+  (should-error (delete 3 (cyc1 1)) :type 'circular-list)
+  (should-error (delete 3 (cyc2 1 2)) :type 'circular-list)
+  (should-error (delete 3 (dot1 1)) :type 'wrong-type-argument)
+  (should-error (delete 3 (dot2 1 2)) :type 'wrong-type-argument))
+
+(ert-deftest test-cycle-reverse ()
+  (should-error (reverse (cyc1 1)) :type 'circular-list)
+  (should-error (reverse (cyc2 1 2)) :type 'circular-list)
+  (should-error (reverse (dot1 1)) :type 'wrong-type-argument)
+  (should-error (reverse (dot2 1 2)) :type 'wrong-type-argument))
+
+(ert-deftest test-cycle-plist-get ()
+  (let ((c1 (cyc1 1))
+        (c2 (cyc2 1 2))
+        (d1 (dot1 1))
+        (d2 (dot2 1 2)))
+    (should (plist-get c1 1))
+    (should (plist-get c2 1))
+    (should (plist-get d1 1))
+    (should (plist-get d2 1))
+    (should-not (plist-get c1 2))
+    (should (plist-get c2 2))
+    (should-not (plist-get d1 2))
+    (should (plist-get d2 2))
+    (should-not (plist-get c1 3))
+    (should-not (plist-get c2 3))
+    (should-not (plist-get d1 3))
+    (should-not (plist-get d2 3))))
+
+(ert-deftest test-cycle-lax-plist-get ()
+  (let ((c1 (cyc1 1))
+        (c2 (cyc2 1 2))
+        (d1 (dot1 1))
+        (d2 (dot2 1 2)))
+    (should (lax-plist-get c1 1))
+    (should (lax-plist-get c2 1))
+    (should (lax-plist-get d1 1))
+    (should (lax-plist-get d2 1))
+    (should-error (lax-plist-get c1 2) :type 'circular-list)
+    (should (lax-plist-get c2 2))
+    (should-not (lax-plist-get d1 2))
+    (should (lax-plist-get d2 2))
+    (should-error (lax-plist-get c1 3) :type 'circular-list)
+    (should-error (lax-plist-get c2 3) :type 'circular-list)
+    (should-not (lax-plist-get d1 3))
+    (should-not (lax-plist-get d2 3))))
+
+(ert-deftest test-cycle-plist-member ()
+  (let ((c1 (cyc1 1))
+        (c2 (cyc2 1 2))
+        (d1 (dot1 1))
+        (d2 (dot2 1 2)))
+    (should (plist-member c1 1))
+    (should (plist-member c2 1))
+    (should (plist-member d1 1))
+    (should (plist-member d2 1))
+    (should-error (plist-member c1 2) :type 'circular-list)
+    (should (plist-member c2 2))
+    (should-error (plist-member d1 2) :type 'wrong-type-argument)
+    (should (plist-member d2 2))
+    (should-error (plist-member c1 3) :type 'circular-list)
+    (should-error (plist-member c2 3) :type 'circular-list)
+    (should-error (plist-member d1 3) :type 'wrong-type-argument)
+    (should-error (plist-member d2 3) :type 'wrong-type-argument)))
+
+(ert-deftest test-cycle-plist-put ()
+  (let ((c1 (cyc1 1))
+        (c2 (cyc2 1 2))
+        (d1 (dot1 1))
+        (d2 (dot2 1 2)))
+    (should (plist-put c1 1 1))
+    (should (plist-put c2 1 1))
+    (should (plist-put d1 1 1))
+    (should (plist-put d2 1 1))
+    (should-error (plist-put c1 2 2) :type 'circular-list)
+    (should (plist-put c2 2 2))
+    (should (plist-put d1 2 2))
+    (should (plist-put d2 2 2))
+    (should-error (plist-put c1 3 3) :type 'circular-list)
+    (should-error (plist-put c2 3 3) :type 'circular-list)
+    (should (plist-put d1 3 3))
+    (should (plist-put d2 3 3))))
+
+(ert-deftest test-cycle-lax-plist-put ()
+  (let ((c1 (cyc1 1))
+        (c2 (cyc2 1 2))
+        (d1 (dot1 1))
+        (d2 (dot2 1 2)))
+    (should (lax-plist-put c1 1 1))
+    (should (lax-plist-put c2 1 1))
+    (should (lax-plist-put d1 1 1))
+    (should (lax-plist-put d2 1 1))
+    (should-error (lax-plist-put c1 2 2) :type 'circular-list)
+    (should (lax-plist-put c2 2 2))
+    (should (lax-plist-put d1 2 2))
+    (should (lax-plist-put d2 2 2))
+    (should-error (lax-plist-put c1 3 3) :type 'circular-list)
+    (should-error (lax-plist-put c2 3 3) :type 'circular-list)
+    (should (lax-plist-put d1 3 3))
+    (should (lax-plist-put d2 3 3))))
+
+(ert-deftest test-cycle-equal ()
+  (should-error (equal (cyc1 1) (cyc1 1)))
+  (should-error (equal (cyc2 1 2) (cyc2 1 2))))
+
+(ert-deftest test-cycle-nconc ()
+  (should-error (nconc (cyc1 1) 'tail) :type 'circular-list)
+  (should-error (nconc (cyc2 1 2) 'tail) :type 'circular-list))
+
+(provide 'fns-tests)