org-list: Fix small bug

* lisp/org-list.el (org-list-struct): Fix small bug introduced by
  commit 8b7a3f2498.
* testing/lisp/test-org-list.el: Add test.

lisp/org-list.el

@@ -677,8 +677,7 @@ Assume point is at an item."
 	       ((looking-at item-re)
 		(push (funcall assoc-at-point ind) itm-lst)
 		(push (cons ind (point)) end-lst)
-		(when (or (<= ind (cdr beg-cell)) (< ind text-min-ind))
-		  (setq beg-cell (cons (point) ind)))
+		(when (< ind text-min-ind) (setq beg-cell (cons (point) ind)))
 		(forward-line -1))
 	       ;; Skip blocks, drawers, inline tasks, blank lines.
 	       ((and (looking-at "^[ \t]*#\\+end_")

testing/lisp/test-org-list.el

@@ -0,0 +1,118 @@
+;;; test-org-list.el --- Tests for org-list.el
+
+;; Copyright (C) 2012  Nicolas Goaziou
+
+;; Author: Nicolas Goaziou <n.goaziou at gmail dot com>
+
+;; 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/>.
+
+;;; Code:
+
+(ert-deftest test-org-list/list-ending ()
+  "Test if lists end at the right place."
+  ;; With two blank lines.
+  (org-test-with-temp-text "- item\n\n\n  Text"
+    (goto-line 4)
+    (should-not (org-in-item-p)))
+  ;; With text less indented than top items.
+  (org-test-with-temp-text "- item\nText"
+    (goto-line 2)
+    (should-not (org-in-item-p)))
+  ;; Though, blank lines and text indentation is ignored in blocks.
+  (org-test-with-temp-text
+      "- item\n  #+begin_quote\n\n\nText at column 0\n  #+end_quote\n Text"
+    (goto-line 7)
+    (should (org-in-item-p))))
+
+(ert-deftest test-org-list/list-navigation ()
+  "Test list navigation specifications."
+  (org-test-with-temp-text "
+- item A
+- item B
+
+
+- item 1
+  - item 1.1
+  - item 1.2
+  - item 1.3
+- item 2
+
+
+- item X
+- item Y"
+    (let ((org-list-use-circular-motion nil))
+      ;; 1. Test `org-next-item'.
+      ;;
+      ;; 1.1. Should return an error if at last item in
+      ;;      a list/sub-list, unless `org-list-use-circular-motion'
+      ;;      is non-nil.
+      (goto-line 9)
+      (should-error (org-next-item))
+      (let ((org-list-use-circular-motion t))
+	(should (progn (org-next-item) t)))
+      (goto-line 14)
+      (should-error (org-next-item))
+      (let ((org-list-use-circular-motion t))
+	(should (progn (org-next-item) t)))
+      ;; 1.2. Should jump over sub-lists.
+      (goto-line 6)
+      (org-next-item)
+      (should (looking-at "- item 2"))
+      ;; 1.3. Shouldn't move to another list.
+      (goto-line 3)
+      (should-error (org-next-item))
+      (should-not (looking-at "- item 1"))
+      ;; 1.4. Should move to the list/sub-list first item when
+      ;;     `org-list-use-circular-motion' is non-nil.
+      (let ((org-list-use-circular-motion t))
+	(goto-line 10)
+	(org-next-item)
+	(should (looking-at "- item 1"))
+	(goto-line 9)
+	(org-next-item)
+	(should (looking-at "  - item 1.1")))
+      ;; 2. Test `org-previous-item'.
+      ;;
+      ;; 2.1. Should return an error if at first item in
+      ;;      a list/sub-list, unless `org-list-use-circular-motion is
+      ;;      non-nil.
+      (goto-line 7)
+      (should-error (org-previous-item))
+      (let ((org-list-use-circular-motion t))
+	(should (progn (org-previous-item) t)))
+      (goto-line 13)
+      (should-error (org-previous-item))
+      (let ((org-list-use-circular-motion t))
+	(should (progn (org-previous-item) t)))
+      ;; 2.2. Should ignore sub-lists.
+      (goto-line 10)
+      (org-previous-item)
+      (should (looking-at "- item 1"))
+      ;; 2.3. Shouldn't move to another list.
+      (goto-line 6)
+      (should-error (org-previous-item))
+      (should-not (looking-at "- item B"))
+      ;; 2.4. Should move to the list/sub-list last item when
+      ;;      `org-list-use-circular-motion' is non-nil.
+      (let ((org-list-use-circular-motion t))
+	(goto-line 6)
+	(org-previous-item)
+	(should (looking-at "- item 2"))
+	(goto-line 7)
+	(org-previous-item)
+	(should (looking-at "  - item 1.3"))))))
+
+
+(provide 'test-org-list)
+;;; test-org-list.el ends here