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diff --git a/test/automated/seq-tests.el b/test/automated/seq-tests.el
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-;;; seq-tests.el --- Tests for sequences.el
-
-;; Copyright (C) 2014-2016 Free Software Foundation, Inc.
-
-;; Author: Nicolas Petton <nicolas@petton.fr>
-;; Maintainer: emacs-devel@gnu.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs 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.
-
-;; GNU Emacs 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; Tests for sequences.el
-
-;;; Code:
-
-(require 'ert)
-(require 'seq)
-
-(defmacro with-test-sequences (spec &rest body)
-  "Successively bind VAR to a list, vector, and string built from SEQ.
-Evaluate BODY for each created sequence.
-
-\(fn (var seq) body)"
-  (declare (indent 1) (debug ((symbolp form) body)))
-  (let ((initial-seq (make-symbol "initial-seq")))
-    `(let ((,initial-seq ,(cadr spec)))
-       ,@(mapcar (lambda (s)
-                   `(let ((,(car spec) (apply (function ,s) ,initial-seq)))
-                      ,@body))
-                 '(list vector string)))))
-
-(defun same-contents-p (seq1 seq2)
-  "Return t if SEQ1 and SEQ2 have the same contents, nil otherwise."
-  (equal (append seq1 '()) (append seq2 '())))
-
-(defun test-sequences-evenp (integer)
-  "Return t if INTEGER is even."
-  (eq (logand integer 1) 0))
-
-(defun test-sequences-oddp (integer)
-  "Return t if INTEGER is odd."
-  (not (test-sequences-evenp integer)))
-
-(ert-deftest test-setf-seq-elt ()
-  (with-test-sequences (seq '(1 2 3))
-    (setf (seq-elt seq 1) 4)
-    (should (= 4 (seq-elt seq 1)))))
-
-(ert-deftest test-seq-drop ()
-  (with-test-sequences (seq '(1 2 3 4))
-    (should (equal (seq-drop seq 0) seq))
-    (should (equal (seq-drop seq 1) (seq-subseq seq 1)))
-    (should (equal (seq-drop seq 2) (seq-subseq seq 2)))
-    (should (seq-empty-p (seq-drop seq 4)))
-    (should (seq-empty-p (seq-drop seq 10))))
-  (with-test-sequences (seq '())
-    (should (seq-empty-p (seq-drop seq 0)))
-    (should (seq-empty-p (seq-drop seq 1)))))
-
-(ert-deftest test-seq-take ()
-  (with-test-sequences (seq '(2 3 4 5))
-    (should (seq-empty-p (seq-take seq 0)))
-    (should (= (seq-length (seq-take seq 1)) 1))
-    (should (= (seq-elt (seq-take seq 1) 0) 2))
-    (should (same-contents-p (seq-take seq 3) '(2 3 4)))
-    (should (equal (seq-take seq 10) seq))))
-
-(ert-deftest test-seq-drop-while ()
-  (with-test-sequences (seq '(1 3 2 4))
-    (should (equal (seq-drop-while #'test-sequences-oddp seq)
-                   (seq-drop seq 2)))
-    (should (equal (seq-drop-while #'test-sequences-evenp seq)
-                   seq))
-    (should (seq-empty-p (seq-drop-while #'numberp seq))))
-  (with-test-sequences (seq '())
-    (should (seq-empty-p (seq-drop-while #'test-sequences-oddp seq)))))
-
-(ert-deftest test-seq-take-while ()
-  (with-test-sequences (seq '(1 3 2 4))
-    (should (equal (seq-take-while #'test-sequences-oddp seq)
-                   (seq-take seq 2)))
-    (should (seq-empty-p (seq-take-while #'test-sequences-evenp seq)))
-    (should (equal (seq-take-while #'numberp seq) seq)))
-  (with-test-sequences (seq '())
-    (should (seq-empty-p (seq-take-while #'test-sequences-oddp seq)))))
-
-(ert-deftest test-seq-filter ()
-  (with-test-sequences (seq '(6 7 8 9 10))
-    (should (equal (seq-filter #'test-sequences-evenp seq) '(6 8 10)))
-    (should (equal (seq-filter #'test-sequences-oddp seq) '(7 9)))
-    (should (equal (seq-filter (lambda (elt) nil) seq) '())))
-  (with-test-sequences (seq '())
-    (should (equal (seq-filter #'test-sequences-evenp seq) '()))))
-
-(ert-deftest test-seq-remove ()
-  (with-test-sequences (seq '(6 7 8 9 10))
-    (should (equal (seq-remove #'test-sequences-evenp seq) '(7 9)))
-    (should (equal (seq-remove #'test-sequences-oddp seq) '(6 8 10)))
-    (should (same-contents-p (seq-remove (lambda (elt) nil) seq) seq)))
-  (with-test-sequences (seq '())
-    (should (equal (seq-remove #'test-sequences-evenp seq) '()))))
-
-(ert-deftest test-seq-count ()
-  (with-test-sequences (seq '(6 7 8 9 10))
-    (should (equal (seq-count #'test-sequences-evenp seq) 3))
-    (should (equal (seq-count #'test-sequences-oddp seq) 2))
-    (should (equal (seq-count (lambda (elt) nil) seq) 0)))
-  (with-test-sequences (seq '())
-    (should (equal (seq-count #'test-sequences-evenp seq) 0))))
-
-(ert-deftest test-seq-reduce ()
-  (with-test-sequences (seq '(1 2 3 4))
-    (should (= (seq-reduce #'+ seq 0) 10))
-    (should (= (seq-reduce #'+ seq 5) 15)))
-  (with-test-sequences (seq '())
-    (should (eq (seq-reduce #'+ seq 0) 0))
-    (should (eq (seq-reduce #'+ seq 7) 7))))
-
-(ert-deftest test-seq-some ()
-  (with-test-sequences (seq '(4 3 2 1))
-    (should (seq-some #'test-sequences-evenp seq))
-    (should (seq-some #'test-sequences-oddp seq))
-    (should-not (seq-some (lambda (elt) (> elt 10)) seq)))
-  (with-test-sequences (seq '())
-    (should-not (seq-some #'test-sequences-oddp seq)))
-  (should (seq-some #'null '(1 nil 2))))
-
-(ert-deftest test-seq-find ()
-  (with-test-sequences (seq '(4 3 2 1))
-    (should (= 4 (seq-find #'test-sequences-evenp seq)))
-    (should (= 3 (seq-find #'test-sequences-oddp seq)))
-    (should-not (seq-find (lambda (elt) (> elt 10)) seq)))
-  (should-not (seq-find #'null '(1 nil 2)))
-  (should-not (seq-find #'null '(1 nil 2) t))
-  (should-not (seq-find #'null '(1 2 3)))
-  (should (seq-find #'null '(1 2 3) 'sentinel)))
-
-(ert-deftest test-seq-contains ()
-  (with-test-sequences (seq '(3 4 5 6))
-    (should (seq-contains seq 3))
-    (should-not (seq-contains seq 7)))
-  (with-test-sequences (seq '())
-    (should-not (seq-contains seq 3))
-    (should-not (seq-contains seq nil))))
-
-(ert-deftest test-seq-every-p ()
-  (with-test-sequences (seq '(43 54 22 1))
-    (should (seq-every-p (lambda (elt) t) seq))
-    (should-not (seq-every-p #'test-sequences-oddp seq))
-    (should-not (seq-every-p #'test-sequences-evenp seq)))
-  (with-test-sequences (seq '(42 54 22 2))
-    (should (seq-every-p #'test-sequences-evenp seq))
-    (should-not (seq-every-p #'test-sequences-oddp seq)))
-  (with-test-sequences (seq '())
-    (should (seq-every-p #'identity seq))
-    (should (seq-every-p #'test-sequences-evenp seq))))
-
-(ert-deftest test-seq-empty-p ()
-  (with-test-sequences (seq '(0))
-    (should-not (seq-empty-p seq)))
-  (with-test-sequences (seq '(0 1 2))
-    (should-not (seq-empty-p seq)))
-  (with-test-sequences (seq '())
-    (should (seq-empty-p seq))))
-
-(ert-deftest test-seq-sort ()
-  (should (equal (seq-sort #'< "cbaf") "abcf"))
-  (should (equal (seq-sort #'< '(2 1 9 4)) '(1 2 4 9)))
-  (should (equal (seq-sort #'< [2 1 9 4]) [1 2 4 9]))
-  (should (equal (seq-sort #'< "") "")))
-
-(ert-deftest test-seq-uniq ()
-  (with-test-sequences (seq '(2 4 6 8 6 4 3))
-    (should (equal (seq-uniq seq) '(2 4 6 8 3))))
-  (with-test-sequences (seq '(3 3 3 3 3))
-    (should (equal (seq-uniq seq) '(3))))
-  (with-test-sequences (seq '())
-    (should (equal (seq-uniq seq) '()))))
-
-(ert-deftest test-seq-subseq ()
-  (with-test-sequences (seq '(2 3 4 5))
-    (should (equal (seq-subseq seq 0 4) seq))
-    (should (same-contents-p (seq-subseq seq 2 4) '(4 5)))
-    (should (same-contents-p (seq-subseq seq 1 3) '(3 4)))
-    (should (same-contents-p (seq-subseq seq 1 -1) '(3 4))))
-  (should (vectorp (seq-subseq [2 3 4 5] 2)))
-  (should (stringp (seq-subseq "foo" 2 3)))
-  (should (listp (seq-subseq '(2 3 4 4) 2 3)))
-  (should-error (seq-subseq '(1 2 3) 4))
-  (should-not   (seq-subseq '(1 2 3) 3))
-  (should       (seq-subseq '(1 2 3) -3))
-  (should-error (seq-subseq '(1 2 3) 1 4))
-  (should       (seq-subseq '(1 2 3) 1 3))
-  (should-error (seq-subseq '() -1))
-  (should-error (seq-subseq [] -1))
-  (should-error (seq-subseq "" -1))
-  (should-not (seq-subseq '() 0))
-  (should-error (seq-subseq '() 0 -1)))
-
-(ert-deftest test-seq-concatenate ()
-  (with-test-sequences (seq '(2 4 6))
-    (should (equal (seq-concatenate 'string seq [8]) (string 2 4 6 8)))
-    (should (equal (seq-concatenate 'list seq '(8 10)) '(2 4 6 8 10)))
-    (should (equal (seq-concatenate 'vector seq '(8 10)) [2 4 6 8 10]))
-    (should (equal (seq-concatenate 'vector nil '(8 10)) [8 10]))
-    (should (equal (seq-concatenate 'vector seq nil) [2 4 6]))))
-
-(ert-deftest test-seq-mapcat ()
-  (should (equal (seq-mapcat #'seq-reverse '((3 2 1) (6 5 4)))
-                 '(1 2 3 4 5 6)))
-  (should (equal (seq-mapcat #'seq-reverse '[(3 2 1) (6 5 4)])
-                 '(1 2 3 4 5 6)))
-  (should (equal (seq-mapcat #'seq-reverse '((3 2 1) (6 5 4)) 'vector)
-                 '[1 2 3 4 5 6])))
-
-(ert-deftest test-seq-partition ()
-  (should (same-contents-p (seq-partition '(0 1 2 3 4 5 6 7) 3)
-                           '((0 1 2) (3 4 5) (6 7))))
-  (should (same-contents-p (seq-partition '[0 1 2 3 4 5 6 7] 3)
-                           '([0 1 2] [3 4 5] [6 7])))
-  (should (same-contents-p (seq-partition "Hello world" 2)
-                           '("He" "ll" "o " "wo" "rl" "d")))
-  (should (equal (seq-partition '() 2) '()))
-  (should (equal (seq-partition '(1 2 3) -1) '())))
-
-(ert-deftest test-seq-group-by ()
-  (with-test-sequences (seq '(1 2 3 4))
-   (should (equal (seq-group-by #'test-sequences-oddp seq)
-                  '((t 1 3) (nil 2 4)))))
-  (should (equal (seq-group-by #'car '((a 1) (b 3) (c 4) (a 2)))
-                 '((b (b 3)) (c (c 4)) (a (a 1) (a 2))))))
-
-(ert-deftest test-seq-reverse ()
-  (with-test-sequences (seq '(1 2 3 4))
-    (should (same-contents-p (seq-reverse seq) '(4 3 2 1)))
-    (should (equal (type-of (seq-reverse seq))
-                   (type-of seq)))))
-
-(ert-deftest test-seq-into ()
-  (let* ((vector [1 2 3])
-         (list (seq-into vector 'list)))
-    (should (same-contents-p vector list))
-    (should (listp list)))
-  (let* ((list '(hello world))
-         (vector (seq-into list 'vector)))
-    (should (same-contents-p vector list))
-    (should (vectorp vector)))
-  (let* ((string "hello")
-         (list (seq-into string 'list)))
-    (should (same-contents-p string list))
-    (should (stringp string)))
-  (let* ((string "hello")
-         (vector (seq-into string 'vector)))
-    (should (same-contents-p string vector))
-    (should (stringp string)))
-  (let* ((list nil)
-         (vector (seq-into list 'vector)))
-    (should (same-contents-p list vector))
-    (should (vectorp vector))))
-
-(ert-deftest test-seq-intersection ()
-  (let ((v1 [2 3 4 5])
-        (v2 [1 3 5 6 7]))
-    (should (same-contents-p (seq-intersection v1 v2)
-                             '(3 5))))
-  (let ((l1 '(2 3 4 5))
-        (l2 '(1 3 5 6 7)))
-    (should (same-contents-p (seq-intersection l1 l2)
-                             '(3 5))))
-  (let ((v1 [2 4 6])
-        (v2 [1 3 5]))
-    (should (seq-empty-p (seq-intersection v1 v2)))))
-
-(ert-deftest test-seq-difference ()
-  (let ((v1 [2 3 4 5])
-        (v2 [1 3 5 6 7]))
-    (should (same-contents-p (seq-difference v1 v2)
-                             '(2 4))))
-  (let ((l1 '(2 3 4 5))
-        (l2 '(1 3 5 6 7)))
-    (should (same-contents-p (seq-difference l1 l2)
-                             '(2 4))))
-  (let ((v1 [2 4 6])
-        (v2 [2 4 6]))
-    (should (seq-empty-p (seq-difference v1 v2)))))
-
-(ert-deftest test-seq-let ()
-  (with-test-sequences (seq '(1 2 3 4))
-    (seq-let (a b c d e) seq
-      (should (= a 1))
-      (should (= b 2))
-      (should (= c 3))
-      (should (= d 4))
-      (should (null e)))
-    (seq-let (a b &rest others) seq
-      (should (= a 1))
-      (should (= b 2))
-      (should (same-contents-p others (seq-drop seq 2)))))
-  (let ((seq '(1 (2 (3 (4))))))
-    (seq-let (_ (_ (_ (a)))) seq
-      (should (= a 4))))
-  (let (seq)
-    (seq-let (a b c) seq
-      (should (null a))
-      (should (null b))
-      (should (null c)))))
-
-(ert-deftest test-seq-min-max ()
-  (with-test-sequences (seq '(4 5 3 2 0 4))
-    (should (= (seq-min seq) 0))
-    (should (= (seq-max seq) 5))))
-
-(ert-deftest test-seq-into-sequence ()
-  (with-test-sequences (seq '(1 2 3))
-    (should (eq seq (seq-into-sequence seq)))
-    (should-error (seq-into-sequence 2))))
-
-(ert-deftest test-seq-position ()
-  (with-test-sequences (seq '(2 4 6))
-    (should (null (seq-position seq 1)))
-    (should (= (seq-position seq 4) 1)))
-  (let ((seq '(a b c)))
-    (should (null (seq-position seq 'd #'eq)))
-    (should (= (seq-position seq 'a #'eq) 0))
-    (should (null (seq-position seq (make-symbol "a") #'eq)))))
-
-(provide 'seq-tests)
-;;; seq-tests.el ends here