Add cyclic-list tests

* test/manual/cycle-tests.el: New file (Bug#25606).

1 files changed, 314 insertions, 0 deletions

diff --git a/test/manual/cycle-tests.el b/test/manual/cycle-tests.el
new file mode 100644
index 00000000000..2632b2d7b54
--- /dev/null
+++ b/test/manual/cycle-tests.el
@@ -0,0 +1,314 @@
+;;; 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)