--- /dev/null
+;;; cl-lib.el --- tests for emacs-lisp/cl-lib.el
+
+;; Copyright (C) 2013-2014 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)))
+
+(ert-deftest cl-lib-test-loop ()
+ (should (eql (cl-loop with (a b c) = '(1 2 3) return (+ a b c)) 6)))
+
+(ert-deftest cl-lib-keyword-names-versus-values ()
+ (should (equal
+ (funcall (cl-function (lambda (&key a b) (list a b)))
+ :b :a :a 42)
+ '(42 :a))))
+
+(cl-defstruct mystruct (abc :readonly t) def)
+(ert-deftest cl-lib-struct-accessors ()
+ (let ((x (make-mystruct :abc 1 :def 2)))
+ (should (eql (cl-struct-slot-value 'mystruct 'abc x) 1))
+ (should (eql (cl-struct-slot-value 'mystruct 'def x) 2))
+ (setf (cl-struct-slot-value 'mystruct 'def x) -1)
+ (should (eql (cl-struct-slot-value 'mystruct 'def x) -1))
+ (should (eql (cl-struct-slot-offset 'mystruct 'abc) 1))
+ (should-error (cl-struct-slot-offset 'mystruct 'marypoppins))
+ (should (equal (cl-struct-slot-info 'mystruct)
+ '((cl-tag-slot) (abc :readonly t) (def))))))
+
+(ert-deftest cl-the ()
+ (should (eql (cl-the integer 42) 42))
+ (should-error (cl-the integer "abc"))
+ (let ((side-effect 0))
+ (should (= (cl-the integer (cl-incf side-effect)) 1))
+ (should (= side-effect 1))))
+
+(ert-deftest cl-digit-char-p ()
+ (should (cl-digit-char-p ?3))
+ (should (cl-digit-char-p ?a 11))
+ (should-not (cl-digit-char-p ?a))
+ (should (cl-digit-char-p ?w 36))
+ (should-error (cl-digit-char-p ?a 37))
+ (should-error (cl-digit-char-p ?a 1)))
+
+(ert-deftest cl-parse-integer ()
+ (should-error (cl-parse-integer "abc"))
+ (should (null (cl-parse-integer "abc" :junk-allowed t)))
+ (should (null (cl-parse-integer "" :junk-allowed t)))
+ (should (= 342391 (cl-parse-integer "0123456789" :radix 8 :junk-allowed t)))
+ (should-error (cl-parse-integer "0123456789" :radix 8))
+ (should (= -239 (cl-parse-integer "-efz" :radix 16 :junk-allowed t)))
+ (should-error (cl-parse-integer "efz" :radix 16))
+ (should (= 239 (cl-parse-integer "zzef" :radix 16 :start 2)))
+ (should (= -123 (cl-parse-integer " -123 "))))
+
+(ert-deftest cl-loop-destructuring-with ()
+ (should (equal (cl-loop with (a b c) = '(1 2 3) return (+ a b c)) 6)))
+
+;;; cl-lib.el ends here