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[Emacs-diffs] trunk r113376: Stop reimplementing a bunch of cl- function


From: Glenn Morris
Subject: [Emacs-diffs] trunk r113376: Stop reimplementing a bunch of cl- functions in ert
Date: Thu, 11 Jul 2013 16:13:51 +0000
User-agent: Bazaar (2.6b2)

------------------------------------------------------------
revno: 113376
revision-id: address@hidden
parent: address@hidden
committer: Glenn Morris <address@hidden>
branch nick: trunk
timestamp: Thu 2013-07-11 09:13:38 -0700
message:
  Stop reimplementing a bunch of cl- functions in ert
  
  * lisp/emacs-lisp/ert.el: Require cl-lib at runtime too.
  (ert--cl-do-remf, ert--remprop, ert--remove-if-not)
  (ert--intersection, ert--set-difference, ert--set-difference-eq)
  (ert--union, ert--gensym-counter, ert--gensym-counter)
  (ert--coerce-to-vector, ert--remove*, ert--string-position)
  (ert--mismatch, ert--subseq): Remove reimplementations of cl funcs.
  (ert-make-test-unbound, ert--expand-should-1)
  (ert--expand-should, ert--should-error-handle-error)
  (should-error, ert--explain-equal-rec)
  (ert--plist-difference-explanation, ert-select-tests)
  (ert--make-stats, ert--remove-from-list, ert--string-first-line):
  Use cl-lib functions rather than reimplementations.
  
  * test/automated/ert-tests.el: Require cl-lib at runtime too.
  (ert-test-special-operator-p): Use cl-gensym rather than ert-- version.
  (ert-test-remprop, ert-test-remove-if-not, ert-test-remove*)
  (ert-test-set-functions, ert-test-gensym)
  (ert-test-coerce-to-vector, ert-test-string-position)
  (ert-test-mismatch): Remove tests.
  
  * test/automated/cl-lib.el: New, split from ert-tests.el.
added:
  test/automated/cl-lib.el       cllib.el-20130711160611-o23w1tyz0y13jq8e-1
modified:
  lisp/ChangeLog                 changelog-20091113204419-o5vbwnq5f7feedwu-1432
  lisp/emacs-lisp/ert.el         ert.el-20110112160650-056hnl9qhpjvjicy-2
  test/ChangeLog                 changelog-20091113204419-o5vbwnq5f7feedwu-8588
  test/automated/ert-tests.el    erttests.el-20110112160650-056hnl9qhpjvjicy-4
=== modified file 'lisp/ChangeLog'
--- a/lisp/ChangeLog    2013-07-11 09:52:54 +0000
+++ b/lisp/ChangeLog    2013-07-11 16:13:38 +0000
@@ -1,3 +1,18 @@
+2013-07-11  Glenn Morris  <address@hidden>
+
+       * emacs-lisp/ert.el: Require cl-lib at runtime too.
+       (ert--cl-do-remf, ert--remprop, ert--remove-if-not)
+       (ert--intersection, ert--set-difference, ert--set-difference-eq)
+       (ert--union, ert--gensym-counter, ert--gensym-counter)
+       (ert--coerce-to-vector, ert--remove*, ert--string-position)
+       (ert--mismatch, ert--subseq): Remove reimplementations of cl funcs.
+       (ert-make-test-unbound, ert--expand-should-1)
+       (ert--expand-should, ert--should-error-handle-error)
+       (should-error, ert--explain-equal-rec)
+       (ert--plist-difference-explanation, ert-select-tests)
+       (ert--make-stats, ert--remove-from-list, ert--string-first-line):
+       Use cl-lib functions rather than reimplementations.
+
 2013-07-11  Michael Albinus  <address@hidden>
 
        * net/tramp.el (tramp-methods): Extend docstring.

=== modified file 'lisp/emacs-lisp/ert.el'
--- a/lisp/emacs-lisp/ert.el    2013-04-07 20:42:11 +0000
+++ b/lisp/emacs-lisp/ert.el    2013-07-11 16:13:38 +0000
@@ -54,7 +54,7 @@
 
 ;;; Code:
 
-(eval-when-compile (require 'cl-lib))
+(require 'cl-lib)
 (require 'button)
 (require 'debug)
 (require 'easymenu)
@@ -87,127 +87,6 @@
 
 ;;; Copies/reimplementations of cl functions.
 
-(defun ert--cl-do-remf (plist tag)
-  "Copy of `cl-do-remf'.  Modify PLIST by removing TAG."
-  (let ((p (cdr plist)))
-    (while (and (cdr p) (not (eq (car (cdr p)) tag))) (setq p (cdr (cdr p))))
-    (and (cdr p) (progn (setcdr p (cdr (cdr (cdr p)))) t))))
-
-(defun ert--remprop (sym tag)
-  "Copy of `cl-remprop'.  Modify SYM's plist by removing TAG."
-  (let ((plist (symbol-plist sym)))
-    (if (and plist (eq tag (car plist)))
-       (progn (setplist sym (cdr (cdr plist))) t)
-      (ert--cl-do-remf plist tag))))
-
-(defun ert--remove-if-not (ert-pred ert-list)
-  "A reimplementation of `remove-if-not'.
-
-ERT-PRED is a predicate, ERT-LIST is the input list."
-  (cl-loop for ert-x in ert-list
-           if (funcall ert-pred ert-x)
-           collect ert-x))
-
-(defun ert--intersection (a b)
-  "A reimplementation of `intersection'.  Intersect the sets A and B.
-
-Elements are compared using `eql'."
-  (cl-loop for x in a
-           if (memql x b)
-           collect x))
-
-(defun ert--set-difference (a b)
-  "A reimplementation of `set-difference'.  Subtract the set B from the set A.
-
-Elements are compared using `eql'."
-  (cl-loop for x in a
-           unless (memql x b)
-           collect x))
-
-(defun ert--set-difference-eq (a b)
-  "A reimplementation of `set-difference'.  Subtract the set B from the set A.
-
-Elements are compared using `eq'."
-  (cl-loop for x in a
-           unless (memq x b)
-           collect x))
-
-(defun ert--union (a b)
-  "A reimplementation of `union'.  Compute the union of the sets A and B.
-
-Elements are compared using `eql'."
-  (append a (ert--set-difference b a)))
-
-(eval-and-compile
-  (defvar ert--gensym-counter 0))
-
-(eval-and-compile
-  (defun ert--gensym (&optional prefix)
-    "Only allows string PREFIX, not compatible with CL."
-    (unless prefix (setq prefix "G"))
-    (make-symbol (format "%s%s"
-                         prefix
-                         (prog1 ert--gensym-counter
-                           (cl-incf ert--gensym-counter))))))
-
-(defun ert--coerce-to-vector (x)
-  "Coerce X to a vector."
-  (when (char-table-p x) (error "Not supported"))
-  (if (vectorp x)
-      x
-    (vconcat x)))
-
-(cl-defun ert--remove* (x list &key key test)
-  "Does not support all the keywords of remove*."
-  (unless key (setq key #'identity))
-  (unless test (setq test #'eql))
-  (cl-loop for y in list
-           unless (funcall test x (funcall key y))
-           collect y))
-
-(defun ert--string-position (c s)
-  "Return the position of the first occurrence of C in S, or nil if none."
-  (cl-loop for i from 0
-           for x across s
-           when (eql x c) return i))
-
-(defun ert--mismatch (a b)
-  "Return index of first element that differs between A and B.
-
-Like `mismatch'.  Uses `equal' for comparison."
-  (cond ((or (listp a) (listp b))
-         (ert--mismatch (ert--coerce-to-vector a)
-                        (ert--coerce-to-vector b)))
-        ((> (length a) (length b))
-         (ert--mismatch b a))
-        (t
-         (let ((la (length a))
-               (lb (length b)))
-           (cl-assert (arrayp a) t)
-           (cl-assert (arrayp b) t)
-           (cl-assert (<= la lb) t)
-           (cl-loop for i below la
-                    when (not (equal (aref a i) (aref b i))) return i
-                    finally (cl-return (if (/= la lb)
-                                           la
-                                         (cl-assert (equal a b) t)
-                                         nil)))))))
-
-(defun ert--subseq (seq start &optional end)
-  "Return a subsequence of SEQ from START to END."
-  (when (char-table-p seq) (error "Not supported"))
-  (let ((vector (substring (ert--coerce-to-vector seq) start end)))
-    (cl-etypecase seq
-      (vector vector)
-      (string (concat vector))
-      (list (append vector nil))
-      (bool-vector (cl-loop with result
-                            = (make-bool-vector (length vector) nil)
-                            for i below (length vector) do
-                            (setf (aref result i) (aref vector i))
-                            finally (cl-return result)))
-      (char-table (cl-assert nil)))))
-
 (defun ert-equal-including-properties (a b)
   "Return t if A and B have similar structure and contents.
 
@@ -258,7 +137,7 @@
 
 (defun ert-make-test-unbound (symbol)
   "Make SYMBOL name no test.  Return SYMBOL."
-  (ert--remprop symbol 'ert--test)
+  (cl-remprop symbol 'ert--test)
   symbol)
 
 (defun ert--parse-keys-and-body (keys-and-body)
@@ -396,8 +275,8 @@
                              cl-macro-environment)))))
     (cond
      ((or (atom form) (ert--special-operator-p (car form)))
-      (let ((value (ert--gensym "value-")))
-        `(let ((,value (ert--gensym "ert-form-evaluation-aborted-")))
+      (let ((value (cl-gensym "value-")))
+        `(let ((,value (cl-gensym "ert-form-evaluation-aborted-")))
            ,(funcall inner-expander
                      `(setq ,value ,form)
                      `(list ',whole :form ',form :value ,value)
@@ -410,10 +289,10 @@
                        (and (consp fn-name)
                             (eql (car fn-name) 'lambda)
                             (listp (cdr fn-name)))))
-        (let ((fn (ert--gensym "fn-"))
-              (args (ert--gensym "args-"))
-              (value (ert--gensym "value-"))
-              (default-value (ert--gensym "ert-form-evaluation-aborted-")))
+        (let ((fn (cl-gensym "fn-"))
+              (args (cl-gensym "args-"))
+              (value (cl-gensym "value-"))
+              (default-value (cl-gensym "ert-form-evaluation-aborted-")))
           `(let ((,fn (function ,fn-name))
                  (,args (list ,@arg-forms)))
              (let ((,value ',default-value))
@@ -450,7 +329,7 @@
   (ert--expand-should-1
    whole form
    (lambda (inner-form form-description-form value-var)
-     (let ((form-description (ert--gensym "form-description-")))
+     (let ((form-description (cl-gensym "form-description-")))
        `(let (,form-description)
           ,(funcall inner-expander
                     `(unwind-protect
@@ -491,7 +370,7 @@
                               (list type)
                               (symbol (list type)))))
     (cl-assert signaled-conditions)
-    (unless (ert--intersection signaled-conditions handled-conditions)
+    (unless (cl-intersection signaled-conditions handled-conditions)
       (ert-fail (append
                  (funcall form-description-fn)
                  (list
@@ -528,8 +407,8 @@
    `(should-error ,form ,@keys)
    form
    (lambda (inner-form form-description-form value-var)
-     (let ((errorp (ert--gensym "errorp"))
-           (form-description-fn (ert--gensym "form-description-fn-")))
+     (let ((errorp (cl-gensym "errorp"))
+           (form-description-fn (cl-gensym "form-description-fn-")))
        `(let ((,errorp nil)
               (,form-description-fn (lambda () ,form-description-form)))
           (condition-case -condition-
@@ -591,7 +470,7 @@
                    `(proper-lists-of-different-length ,(length a) ,(length b)
                                                       ,a ,b
                                                       first-mismatch-at
-                                                      ,(ert--mismatch a b))
+                                                      ,(cl-mismatch a b :test 
'equal))
                  (cl-loop for i from 0
                           for ai in a
                           for bi in b
@@ -611,7 +490,7 @@
                                               ,a ,b
                                               ,@(unless (char-table-p a)
                                                   `(first-mismatch-at
-                                                    ,(ert--mismatch a b))))
+                                                    ,(cl-mismatch a b :test 
'equal))))
                (cl-loop for i from 0
                         for ai across a
                         for bi across b
@@ -656,8 +535,8 @@
   ;; work, so let's punt on it for now.
   (let* ((keys-a (ert--significant-plist-keys a))
          (keys-b (ert--significant-plist-keys b))
-         (keys-in-a-not-in-b (ert--set-difference-eq keys-a keys-b))
-         (keys-in-b-not-in-a (ert--set-difference-eq keys-b keys-a)))
+         (keys-in-a-not-in-b (cl-set-difference keys-a keys-b :test 'eq))
+         (keys-in-b-not-in-a (cl-set-difference keys-b keys-a :test 'eq)))
     (cl-flet ((explain-with-key (key)
                 (let ((value-a (plist-get a key))
                       (value-b (plist-get b key)))
@@ -1090,7 +969,7 @@
      (cl-etypecase universe
        ((member t) (mapcar #'ert-get-test
                            (apropos-internal selector #'ert-test-boundp)))
-       (list (ert--remove-if-not (lambda (test)
+       (list (cl-remove-if-not (lambda (test)
                                    (and (ert-test-name test)
                                         (string-match selector
                                                       (ert-test-name test))))
@@ -1123,13 +1002,13 @@
          (not
           (cl-assert (eql (length operands) 1))
           (let ((all-tests (ert-select-tests 't universe)))
-            (ert--set-difference all-tests
+            (cl-set-difference all-tests
                                  (ert-select-tests (car operands)
                                                    all-tests))))
          (or
           (cl-case (length operands)
             (0 (ert-select-tests 'nil universe))
-            (t (ert--union (ert-select-tests (car operands) universe)
+            (t (cl-union (ert-select-tests (car operands) universe)
                            (ert-select-tests `(or ,@(cdr operands))
                                              universe)))))
          (tag
@@ -1141,7 +1020,7 @@
                               universe)))
          (satisfies
           (cl-assert (eql (length operands) 1))
-          (ert--remove-if-not (car operands)
+          (cl-remove-if-not (car operands)
                               (ert-select-tests 't universe))))))))
 
 (defun ert--insert-human-readable-selector (selector)
@@ -1285,7 +1164,7 @@
   "Create a new `ert--stats' object for running TESTS.
 
 SELECTOR is the selector that was used to select TESTS."
-  (setq tests (ert--coerce-to-vector tests))
+  (setq tests (cl-coerce tests 'vector))
   (let ((map (make-hash-table :size (length tests))))
     (cl-loop for i from 0
              for test across tests
@@ -1548,10 +1427,10 @@
   (unless key (setq key #'identity))
   (unless test (setq test #'equal))
   (setf (symbol-value list-var)
-        (ert--remove* element
-                      (symbol-value list-var)
-                      :key key
-                      :test test)))
+        (cl-remove element
+                   (symbol-value list-var)
+                   :key key
+                   :test test)))
 
 
 ;;; Some basic interactive functions.
@@ -1810,7 +1689,7 @@
   "Return the first line of S, or S if it contains no newlines.
 
 The return value does not include the line terminator."
-  (substring s 0 (ert--string-position ?\n s)))
+  (substring s 0 (cl-position ?\n s)))
 
 (defun ert-face-for-test-result (expectedp)
   "Return a face that shows whether a test result was expected or unexpected.

=== modified file 'test/ChangeLog'
--- a/test/ChangeLog    2013-07-11 16:04:56 +0000
+++ b/test/ChangeLog    2013-07-11 16:13:38 +0000
@@ -1,5 +1,13 @@
 2013-07-11  Glenn Morris  <address@hidden>
 
+       * automated/ert-tests.el: Require cl-lib at runtime too.
+       (ert-test-special-operator-p): Use cl-gensym rather than ert-- version.
+       (ert-test-remprop, ert-test-remove-if-not, ert-test-remove*)
+       (ert-test-set-functions, ert-test-gensym)
+       (ert-test-coerce-to-vector, ert-test-string-position)
+       (ert-test-mismatch): Remove tests.
+       * automated/cl-lib.el: New, split from ert-tests.el.
+
        * automated/ruby-mode-tests.el (ruby-deftest-move-to-block):
        Goto point-min.
        (works-on-do, zero-is-noop, ok-with-three, ok-with-minus-two)

=== added file 'test/automated/cl-lib.el'
--- a/test/automated/cl-lib.el  1970-01-01 00:00:00 +0000
+++ b/test/automated/cl-lib.el  2013-07-11 16:13:38 +0000
@@ -0,0 +1,198 @@
+;;; cl-lib.el --- tests for emacs-lisp/cl-lib.el
+
+;; Copyright (C) 2013 Free Software Foundation, Inc.
+
+;; This file is part of GNU Emacs.
+
+;; 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/'.
+
+;;; Commentary:
+
+;; Extracted from ert-tests.el, back when ert used to reimplement some
+;; cl functions.
+
+;;; Code:
+
+(require 'cl-lib)
+(require 'ert)
+
+(ert-deftest cl-lib-test-remprop ()
+  (let ((x (cl-gensym)))
+    (should (equal (symbol-plist x) '()))
+    ;; Remove nonexistent property on empty plist.
+    (cl-remprop x 'b)
+    (should (equal (symbol-plist x) '()))
+    (put x 'a 1)
+    (should (equal (symbol-plist x) '(a 1)))
+    ;; Remove nonexistent property on nonempty plist.
+    (cl-remprop x 'b)
+    (should (equal (symbol-plist x) '(a 1)))
+    (put x 'b 2)
+    (put x 'c 3)
+    (put x 'd 4)
+    (should (equal (symbol-plist x) '(a 1 b 2 c 3 d 4)))
+    ;; Remove property that is neither first nor last.
+    (cl-remprop x 'c)
+    (should (equal (symbol-plist x) '(a 1 b 2 d 4)))
+    ;; Remove last property from a plist of length >1.
+    (cl-remprop x 'd)
+    (should (equal (symbol-plist x) '(a 1 b 2)))
+    ;; Remove first property from a plist of length >1.
+    (cl-remprop x 'a)
+    (should (equal (symbol-plist x) '(b 2)))
+    ;; Remove property when there is only one.
+    (cl-remprop x 'b)
+    (should (equal (symbol-plist x) '()))))
+
+(ert-deftest cl-lib-test-remove-if-not ()
+  (let ((list (list 'a 'b 'c 'd))
+        (i 0))
+    (let ((result (cl-remove-if-not (lambda (x)
+                                        (should (eql x (nth i list)))
+                                        (cl-incf i)
+                                        (member i '(2 3)))
+                                      list)))
+      (should (equal i 4))
+      (should (equal result '(b c)))
+      (should (equal list '(a b c d)))))
+  (should (equal '()
+                 (cl-remove-if-not (lambda (_x) (should nil)) '()))))
+
+(ert-deftest cl-lib-test-remove ()
+  (let ((list (list 'a 'b 'c 'd))
+        (key-index 0)
+        (test-index 0))
+    (let ((result
+           (cl-remove 'foo list
+                         :key (lambda (x)
+                                (should (eql x (nth key-index list)))
+                                (prog1
+                                    (list key-index x)
+                                  (cl-incf key-index)))
+                         :test
+                         (lambda (a b)
+                           (should (eql a 'foo))
+                           (should (equal b (list test-index
+                                                  (nth test-index list))))
+                           (cl-incf test-index)
+                           (member test-index '(2 3))))))
+      (should (equal key-index 4))
+      (should (equal test-index 4))
+      (should (equal result '(a d)))
+      (should (equal list '(a b c d)))))
+  (let ((x (cons nil nil))
+        (y (cons nil nil)))
+    (should (equal (cl-remove x (list x y))
+                   ;; or (list x), since we use `equal' -- the
+                   ;; important thing is that only one element got
+                   ;; removed, this proves that the default test is
+                   ;; `eql', not `equal'
+                   (list y)))))
+
+
+(ert-deftest cl-lib-test-set-functions ()
+  (let ((c1 (cons nil nil))
+        (c2 (cons nil nil))
+        (sym (make-symbol "a")))
+    (let ((e '())
+          (a (list 'a 'b sym nil "" "x" c1 c2))
+          (b (list c1 'y 'b sym 'x)))
+      (should (equal (cl-set-difference e e) e))
+      (should (equal (cl-set-difference a e) a))
+      (should (equal (cl-set-difference e a) e))
+      (should (equal (cl-set-difference a a) e))
+      (should (equal (cl-set-difference b e) b))
+      (should (equal (cl-set-difference e b) e))
+      (should (equal (cl-set-difference b b) e))
+      ;; Note: this test (and others) is sensitive to the order of the
+      ;; result, which is not documented.
+      (should (equal (cl-set-difference a b) (list c2 "x" "" nil 'a)))
+      (should (equal (cl-set-difference b a) (list 'x 'y)))
+
+      ;; We aren't testing whether this is really using `eq' rather than `eql'.
+      (should (equal (cl-set-difference e e :test 'eq) e))
+      (should (equal (cl-set-difference a e :test 'eq) a))
+      (should (equal (cl-set-difference e a :test 'eq) e))
+      (should (equal (cl-set-difference a a :test 'eq) e))
+      (should (equal (cl-set-difference b e :test 'eq) b))
+      (should (equal (cl-set-difference e b :test 'eq) e))
+      (should (equal (cl-set-difference b b :test 'eq) e))
+      (should (equal (cl-set-difference a b :test 'eq) (list c2 "x" "" nil 
'a)))
+      (should (equal (cl-set-difference b a :test 'eq) (list 'x 'y)))
+
+      (should (equal (cl-union e e) e))
+      (should (equal (cl-union a e) a))
+      (should (equal (cl-union e a) a))
+      (should (equal (cl-union a a) a))
+      (should (equal (cl-union b e) b))
+      (should (equal (cl-union e b) b))
+      (should (equal (cl-union b b) b))
+      (should (equal (cl-union a b) (list 'x 'y 'a 'b sym nil "" "x" c1 c2)))
+
+      (should (equal (cl-union b a) (list 'x 'y 'a 'b sym nil "" "x" c1 c2)))
+
+      (should (equal (cl-intersection e e) e))
+      (should (equal (cl-intersection a e) e))
+      (should (equal (cl-intersection e a) e))
+      (should (equal (cl-intersection a a) a))
+      (should (equal (cl-intersection b e) e))
+      (should (equal (cl-intersection e b) e))
+      (should (equal (cl-intersection b b) b))
+      (should (equal (cl-intersection a b) (list sym 'b c1)))
+      (should (equal (cl-intersection b a) (list sym 'b c1))))))
+
+(ert-deftest cl-lib-test-gensym ()
+  ;; Since the expansion of `should' calls `cl-gensym' and thus has a
+  ;; side-effect on `cl--gensym-counter', we have to make sure all
+  ;; macros in our test body are expanded before we rebind
+  ;; `cl--gensym-counter' and run the body.  Otherwise, the test would
+  ;; fail if run interpreted.
+  (let ((body (byte-compile
+               '(lambda ()
+                  (should (equal (symbol-name (cl-gensym)) "G0"))
+                  (should (equal (symbol-name (cl-gensym)) "G1"))
+                  (should (equal (symbol-name (cl-gensym)) "G2"))
+                  (should (equal (symbol-name (cl-gensym "foo")) "foo3"))
+                  (should (equal (symbol-name (cl-gensym "bar")) "bar4"))
+                  (should (equal cl--gensym-counter 5))))))
+    (let ((cl--gensym-counter 0))
+      (funcall body))))
+
+(ert-deftest cl-lib-test-coerce-to-vector ()
+  (let* ((a (vector))
+         (b (vector 1 a 3))
+         (c (list))
+         (d (list b a)))
+    (should (eql (cl-coerce a 'vector) a))
+    (should (eql (cl-coerce b 'vector) b))
+    (should (equal (cl-coerce c 'vector) (vector)))
+    (should (equal (cl-coerce d 'vector) (vector b a)))))
+
+(ert-deftest cl-lib-test-string-position ()
+  (should (eql (cl-position ?x "") nil))
+  (should (eql (cl-position ?a "abc") 0))
+  (should (eql (cl-position ?b "abc") 1))
+  (should (eql (cl-position ?c "abc") 2))
+  (should (eql (cl-position ?d "abc") nil))
+  (should (eql (cl-position ?A "abc") nil)))
+
+(ert-deftest cl-lib-test-mismatch ()
+  (should (eql (cl-mismatch "" "") nil))
+  (should (eql (cl-mismatch "" "a") 0))
+  (should (eql (cl-mismatch "a" "a") nil))
+  (should (eql (cl-mismatch "ab" "a") 1))
+  (should (eql (cl-mismatch "Aa" "aA") 0))
+  (should (eql (cl-mismatch '(a b c) '(a b d)) 2)))
+
+;;; cl-lib.el ends here

=== modified file 'test/automated/ert-tests.el'
--- a/test/automated/ert-tests.el       2013-01-02 16:13:04 +0000
+++ b/test/automated/ert-tests.el       2013-07-11 16:13:38 +0000
@@ -26,11 +26,9 @@
 
 ;;; Code:
 
-(eval-when-compile
-  (require 'cl-lib))
+(require 'cl-lib)
 (require 'ert)
 
-
 ;;; Self-test that doesn't rely on ERT, for bootstrapping.
 
 ;; This is used to test that bodies actually run.
@@ -578,7 +576,7 @@
   (should (ert--special-operator-p 'if))
   (should-not (ert--special-operator-p 'car))
   (should-not (ert--special-operator-p 'ert--special-operator-p))
-  (let ((b (ert--gensym)))
+  (let ((b (cl-gensym)))
     (should-not (ert--special-operator-p b))
     (fset b 'if)
     (should (ert--special-operator-p b))))
@@ -626,171 +624,6 @@
                         :explanation nil)
                        ))))))
 
-(ert-deftest ert-test-remprop ()
-  (let ((x (ert--gensym)))
-    (should (equal (symbol-plist x) '()))
-    ;; Remove nonexistent property on empty plist.
-    (ert--remprop x 'b)
-    (should (equal (symbol-plist x) '()))
-    (put x 'a 1)
-    (should (equal (symbol-plist x) '(a 1)))
-    ;; Remove nonexistent property on nonempty plist.
-    (ert--remprop x 'b)
-    (should (equal (symbol-plist x) '(a 1)))
-    (put x 'b 2)
-    (put x 'c 3)
-    (put x 'd 4)
-    (should (equal (symbol-plist x) '(a 1 b 2 c 3 d 4)))
-    ;; Remove property that is neither first nor last.
-    (ert--remprop x 'c)
-    (should (equal (symbol-plist x) '(a 1 b 2 d 4)))
-    ;; Remove last property from a plist of length >1.
-    (ert--remprop x 'd)
-    (should (equal (symbol-plist x) '(a 1 b 2)))
-    ;; Remove first property from a plist of length >1.
-    (ert--remprop x 'a)
-    (should (equal (symbol-plist x) '(b 2)))
-    ;; Remove property when there is only one.
-    (ert--remprop x 'b)
-    (should (equal (symbol-plist x) '()))))
-
-(ert-deftest ert-test-remove-if-not ()
-  (let ((list (list 'a 'b 'c 'd))
-        (i 0))
-    (let ((result (ert--remove-if-not (lambda (x)
-                                        (should (eql x (nth i list)))
-                                        (cl-incf i)
-                                        (member i '(2 3)))
-                                      list)))
-      (should (equal i 4))
-      (should (equal result '(b c)))
-      (should (equal list '(a b c d)))))
-  (should (equal '()
-                 (ert--remove-if-not (lambda (_x) (should nil)) '()))))
-
-(ert-deftest ert-test-remove* ()
-  (let ((list (list 'a 'b 'c 'd))
-        (key-index 0)
-        (test-index 0))
-    (let ((result
-           (ert--remove* 'foo list
-                         :key (lambda (x)
-                                (should (eql x (nth key-index list)))
-                                (prog1
-                                    (list key-index x)
-                                  (cl-incf key-index)))
-                         :test
-                         (lambda (a b)
-                           (should (eql a 'foo))
-                           (should (equal b (list test-index
-                                                  (nth test-index list))))
-                           (cl-incf test-index)
-                           (member test-index '(2 3))))))
-      (should (equal key-index 4))
-      (should (equal test-index 4))
-      (should (equal result '(a d)))
-      (should (equal list '(a b c d)))))
-  (let ((x (cons nil nil))
-        (y (cons nil nil)))
-    (should (equal (ert--remove* x (list x y))
-                   ;; or (list x), since we use `equal' -- the
-                   ;; important thing is that only one element got
-                   ;; removed, this proves that the default test is
-                   ;; `eql', not `equal'
-                   (list y)))))
-
-
-(ert-deftest ert-test-set-functions ()
-  (let ((c1 (cons nil nil))
-        (c2 (cons nil nil))
-        (sym (make-symbol "a")))
-    (let ((e '())
-          (a (list 'a 'b sym nil "" "x" c1 c2))
-          (b (list c1 'y 'b sym 'x)))
-      (should (equal (ert--set-difference e e) e))
-      (should (equal (ert--set-difference a e) a))
-      (should (equal (ert--set-difference e a) e))
-      (should (equal (ert--set-difference a a) e))
-      (should (equal (ert--set-difference b e) b))
-      (should (equal (ert--set-difference e b) e))
-      (should (equal (ert--set-difference b b) e))
-      (should (equal (ert--set-difference a b) (list 'a nil "" "x" c2)))
-      (should (equal (ert--set-difference b a) (list 'y 'x)))
-
-      ;; We aren't testing whether this is really using `eq' rather than `eql'.
-      (should (equal (ert--set-difference-eq e e) e))
-      (should (equal (ert--set-difference-eq a e) a))
-      (should (equal (ert--set-difference-eq e a) e))
-      (should (equal (ert--set-difference-eq a a) e))
-      (should (equal (ert--set-difference-eq b e) b))
-      (should (equal (ert--set-difference-eq e b) e))
-      (should (equal (ert--set-difference-eq b b) e))
-      (should (equal (ert--set-difference-eq a b) (list 'a nil "" "x" c2)))
-      (should (equal (ert--set-difference-eq b a) (list 'y 'x)))
-
-      (should (equal (ert--union e e) e))
-      (should (equal (ert--union a e) a))
-      (should (equal (ert--union e a) a))
-      (should (equal (ert--union a a) a))
-      (should (equal (ert--union b e) b))
-      (should (equal (ert--union e b) b))
-      (should (equal (ert--union b b) b))
-      (should (equal (ert--union a b) (list 'a 'b sym nil "" "x" c1 c2 'y 'x)))
-      (should (equal (ert--union b a) (list c1 'y 'b sym 'x 'a nil "" "x" c2)))
-
-      (should (equal (ert--intersection e e) e))
-      (should (equal (ert--intersection a e) e))
-      (should (equal (ert--intersection e a) e))
-      (should (equal (ert--intersection a a) a))
-      (should (equal (ert--intersection b e) e))
-      (should (equal (ert--intersection e b) e))
-      (should (equal (ert--intersection b b) b))
-      (should (equal (ert--intersection a b) (list 'b sym c1)))
-      (should (equal (ert--intersection b a) (list c1 'b sym))))))
-
-(ert-deftest ert-test-gensym ()
-  ;; Since the expansion of `should' calls `ert--gensym' and thus has a
-  ;; side-effect on `ert--gensym-counter', we have to make sure all
-  ;; macros in our test body are expanded before we rebind
-  ;; `ert--gensym-counter' and run the body.  Otherwise, the test would
-  ;; fail if run interpreted.
-  (let ((body (byte-compile
-               '(lambda ()
-                  (should (equal (symbol-name (ert--gensym)) "G0"))
-                  (should (equal (symbol-name (ert--gensym)) "G1"))
-                  (should (equal (symbol-name (ert--gensym)) "G2"))
-                  (should (equal (symbol-name (ert--gensym "foo")) "foo3"))
-                  (should (equal (symbol-name (ert--gensym "bar")) "bar4"))
-                  (should (equal ert--gensym-counter 5))))))
-    (let ((ert--gensym-counter 0))
-      (funcall body))))
-
-(ert-deftest ert-test-coerce-to-vector ()
-  (let* ((a (vector))
-         (b (vector 1 a 3))
-         (c (list))
-         (d (list b a)))
-    (should (eql (ert--coerce-to-vector a) a))
-    (should (eql (ert--coerce-to-vector b) b))
-    (should (equal (ert--coerce-to-vector c) (vector)))
-    (should (equal (ert--coerce-to-vector d) (vector b a)))))
-
-(ert-deftest ert-test-string-position ()
-  (should (eql (ert--string-position ?x "") nil))
-  (should (eql (ert--string-position ?a "abc") 0))
-  (should (eql (ert--string-position ?b "abc") 1))
-  (should (eql (ert--string-position ?c "abc") 2))
-  (should (eql (ert--string-position ?d "abc") nil))
-  (should (eql (ert--string-position ?A "abc") nil)))
-
-(ert-deftest ert-test-mismatch ()
-  (should (eql (ert--mismatch "" "") nil))
-  (should (eql (ert--mismatch "" "a") 0))
-  (should (eql (ert--mismatch "a" "a") nil))
-  (should (eql (ert--mismatch "ab" "a") 1))
-  (should (eql (ert--mismatch "Aa" "aA") 0))
-  (should (eql (ert--mismatch '(a b c) '(a b d)) 2)))
-
 (ert-deftest ert-test-string-first-line ()
   (should (equal (ert--string-first-line "") ""))
   (should (equal (ert--string-first-line "abc") "abc"))


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