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-;;; cl-lib.el --- tests for emacs-lisp/cl-lib.el -*- lexical-binding:t -*-
-
-;; Copyright (C) 2013-2016 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 'a nil "" "x" c2)))
- (should (equal (cl-set-difference b a) (list 'y 'x)))
-
- ;; 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 'a nil "" "x" c2)))
- (should (equal (cl-set-difference b a :test 'eq) (list 'y 'x)))
-
- (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
- (:constructor cl-lib--con-1 (&aux (abc 1)))
- (:constructor cl-lib--con-2 (&optional def) "Constructor docstring."))
- "General docstring."
- (abc 5 :readonly t) (def nil))
-(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 (pcase (cl-struct-slot-info 'mystruct)
- (`((cl-tag-slot) (abc 5 :readonly t)
- (def . ,(or `nil `(nil))))
- t)))))
-(ert-deftest cl-lib-struct-constructors ()
- (should (string-match "\\`Constructor docstring."
- (documentation 'cl-lib--con-2 t)))
- (should (mystruct-p (cl-lib--con-1)))
- (should (mystruct-p (cl-lib--con-2))))
-
-(ert-deftest cl-lib-arglist-performance ()
- ;; An `&aux' should not cause lambda's arglist to be turned into an &rest
- ;; that's parsed by hand.
- (should (equal () (help-function-arglist 'cl-lib--con-1)))
- (should (pcase (help-function-arglist 'cl-lib--con-2)
- (`(&optional ,_) t))))
-
-(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-lib-test-plusp ()
- (should-not (cl-plusp -1.0e+INF))
- (should-not (cl-plusp -1.5e2))
- (should-not (cl-plusp -3.14))
- (should-not (cl-plusp -1))
- (should-not (cl-plusp -0.0))
- (should-not (cl-plusp 0))
- (should-not (cl-plusp 0.0))
- (should-not (cl-plusp -0.0e+NaN))
- (should-not (cl-plusp 0.0e+NaN))
- (should (cl-plusp 1))
- (should (cl-plusp 3.14))
- (should (cl-plusp 1.5e2))
- (should (cl-plusp 1.0e+INF))
- (should-error (cl-plusp "42") :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-minusp ()
- (should (cl-minusp -1.0e+INF))
- (should (cl-minusp -1.5e2))
- (should (cl-minusp -3.14))
- (should (cl-minusp -1))
- (should-not (cl-minusp -0.0))
- (should-not (cl-minusp 0))
- (should-not (cl-minusp 0.0))
- (should-not (cl-minusp -0.0e+NaN))
- (should-not (cl-minusp 0.0e+NaN))
- (should-not (cl-minusp 1))
- (should-not (cl-minusp 3.14))
- (should-not (cl-minusp 1.5e2))
- (should-not (cl-minusp 1.0e+INF))
- (should-error (cl-minusp "-42") :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-oddp ()
- (should (cl-oddp -3))
- (should (cl-oddp 3))
- (should-not (cl-oddp -2))
- (should-not (cl-oddp 0))
- (should-not (cl-oddp 2))
- (should-error (cl-oddp 3.0e+NaN) :type 'wrong-type-argument)
- (should-error (cl-oddp 3.0) :type 'wrong-type-argument)
- (should-error (cl-oddp "3") :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-evenp ()
- (should (cl-evenp -2))
- (should (cl-evenp 0))
- (should (cl-evenp 2))
- (should-not (cl-evenp -3))
- (should-not (cl-evenp 3))
- (should-error (cl-evenp 2.0e+NaN) :type 'wrong-type-argument)
- (should-error (cl-evenp 2.0) :type 'wrong-type-argument)
- (should-error (cl-evenp "2") :type 'wrong-type-argument))
-
-(ert-deftest cl-digit-char-p ()
- (should (eql 3 (cl-digit-char-p ?3)))
- (should (eql 10 (cl-digit-char-p ?a 11)))
- (should (eql 10 (cl-digit-char-p ?A 11)))
- (should-not (cl-digit-char-p ?a))
- (should (eql 32 (cl-digit-char-p ?w 36)))
- (should-error (cl-digit-char-p ?a 37) :type 'args-out-of-range)
- (should-error (cl-digit-char-p ?a 1) :type 'args-out-of-range))
-
-(ert-deftest cl-lib-test-first ()
- (should (null (cl-first '())))
- (should (= 4 (cl-first '(4))))
- (should (= 4 (cl-first '(4 2))))
- (should-error (cl-first "42") :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-second ()
- (should (null (cl-second '())))
- (should (null (cl-second '(4))))
- (should (= 2 (cl-second '(1 2))))
- (should (= 2 (cl-second '(1 2 3))))
- (should-error (cl-second "1 2 3") :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-third ()
- (should (null (cl-third '())))
- (should (null (cl-third '(1 2))))
- (should (= 3 (cl-third '(1 2 3))))
- (should (= 3 (cl-third '(1 2 3 4))))
- (should-error (cl-third "123") :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-fourth ()
- (should (null (cl-fourth '())))
- (should (null (cl-fourth '(1 2 3))))
- (should (= 4 (cl-fourth '(1 2 3 4))))
- (should (= 4 (cl-fourth '(1 2 3 4 5))))
- (should-error (cl-fourth "1234") :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-fifth ()
- (should (null (cl-fifth '())))
- (should (null (cl-fifth '(1 2 3 4))))
- (should (= 5 (cl-fifth '(1 2 3 4 5))))
- (should (= 5 (cl-fifth '(1 2 3 4 5 6))))
- (should-error (cl-fifth "12345") :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-fifth ()
- (should (null (cl-fifth '())))
- (should (null (cl-fifth '(1 2 3 4))))
- (should (= 5 (cl-fifth '(1 2 3 4 5))))
- (should (= 5 (cl-fifth '(1 2 3 4 5 6))))
- (should-error (cl-fifth "12345") :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-sixth ()
- (should (null (cl-sixth '())))
- (should (null (cl-sixth '(1 2 3 4 5))))
- (should (= 6 (cl-sixth '(1 2 3 4 5 6))))
- (should (= 6 (cl-sixth '(1 2 3 4 5 6 7))))
- (should-error (cl-sixth "123456") :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-seventh ()
- (should (null (cl-seventh '())))
- (should (null (cl-seventh '(1 2 3 4 5 6))))
- (should (= 7 (cl-seventh '(1 2 3 4 5 6 7))))
- (should (= 7 (cl-seventh '(1 2 3 4 5 6 7 8))))
- (should-error (cl-seventh "1234567") :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-eighth ()
- (should (null (cl-eighth '())))
- (should (null (cl-eighth '(1 2 3 4 5 6 7))))
- (should (= 8 (cl-eighth '(1 2 3 4 5 6 7 8))))
- (should (= 8 (cl-eighth '(1 2 3 4 5 6 7 8 9))))
- (should-error (cl-eighth "12345678") :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-ninth ()
- (should (null (cl-ninth '())))
- (should (null (cl-ninth '(1 2 3 4 5 6 7 8))))
- (should (= 9 (cl-ninth '(1 2 3 4 5 6 7 8 9))))
- (should (= 9 (cl-ninth '(1 2 3 4 5 6 7 8 9 10))))
- (should-error (cl-ninth "123456789") :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-tenth ()
- (should (null (cl-tenth '())))
- (should (null (cl-tenth '(1 2 3 4 5 6 7 8 9))))
- (should (= 10 (cl-tenth '(1 2 3 4 5 6 7 8 9 10))))
- (should (= 10 (cl-tenth '(1 2 3 4 5 6 7 8 9 10 11))))
- (should-error (cl-tenth "1234567890") :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-endp ()
- (should (cl-endp '()))
- (should-not (cl-endp '(1)))
- (should-error (cl-endp 1) :type 'wrong-type-argument)
- (should-error (cl-endp [1]) :type 'wrong-type-argument))
-
-(ert-deftest cl-lib-test-nth-value ()
- (let ((vals (cl-values 2 3)))
- (should (= (cl-nth-value 0 vals) 2))
- (should (= (cl-nth-value 1 vals) 3))
- (should (null (cl-nth-value 2 vals)))
- (should-error (cl-nth-value 0.0 vals) :type 'wrong-type-argument)))
-
-(ert-deftest cl-lib-nth-value-test-multiple-values ()
- "While CL multiple values are an alias to list, these won't work."
- :expected-result :failed
- (should (eq (cl-nth-value 0 '(2 3)) '(2 3)))
- (should (= (cl-nth-value 0 1) 1))
- (should (null (cl-nth-value 1 1)))
- (should-error (cl-nth-value -1 (cl-values 2 3)) :type 'args-out-of-range)
- (should (string= (cl-nth-value 0 "only lists") "only lists")))
-
-(ert-deftest cl-test-caaar ()
- (should (null (cl-caaar '())))
- (should (null (cl-caaar '(() (2)))))
- (should (null (cl-caaar '((() (2)) (a b)))))
- (should-error (cl-caaar '(1 2)) :type 'wrong-type-argument)
- (should-error (cl-caaar '((1 2))) :type 'wrong-type-argument)
- (should (= 1 (cl-caaar '(((1 2) (3 4))))))
- (should (null (cl-caaar '((() (3 4)))))))
-
-(ert-deftest cl-test-caadr ()
- (should (null (cl-caadr '())))
- (should (null (cl-caadr '(1))))
- (should-error (cl-caadr '(1 2)) :type 'wrong-type-argument)
- (should (= 2 (cl-caadr '(1 (2 3)))))
- (should (equal '((2) (3)) (cl-caadr '((1) (((2) (3))) (4))))))
-
-(ert-deftest cl-test-ldiff ()
- (let ((l '(1 2 3)))
- (should (null (cl-ldiff '() '())))
- (should (null (cl-ldiff '() l)))
- (should (null (cl-ldiff l l)))
- (should (equal l (cl-ldiff l '())))
- ;; must be part of the list
- (should (equal l (cl-ldiff l '(2 3))))
- (should (equal '(1) (cl-ldiff l (nthcdr 1 l))))
- ;; should return a copy
- (should-not (eq (cl-ldiff l '()) l))))
-
-(ert-deftest cl-lib-adjoin-test ()
- (let ((nums '(1 2))
- (myfn-p '=))
- ;; add non-existing item to the front
- (should (equal '(3 1 2) (cl-adjoin 3 nums)))
- ;; just add - don't copy rest
- (should (eq nums (cdr (cl-adjoin 3 nums))))
- ;; add only when not already there
- (should (eq nums (cl-adjoin 2 nums)))
- (should (equal '(2 1 (2)) (cl-adjoin 2 '(1 (2)))))
- ;; default test function is eql
- (should (equal '(1.0 1 2) (cl-adjoin 1.0 nums)))
- ;; own :test function - returns true if match
- (should (equal '(1.0 1 2) (cl-adjoin 1.0 nums :test nil))) ;defaults to eql
- (should (eq nums (cl-adjoin 2 nums :test myfn-p))) ;match
- (should (equal '(3 1 2) (cl-adjoin 3 nums :test myfn-p))) ;no match
- ;; own :test-not function - returns false if match
- (should (equal '(1.0 1 2) (cl-adjoin 1.0 nums :test-not nil))) ;defaults to eql
- (should (equal '(2 2) (cl-adjoin 2 '(2) :test-not myfn-p))) ; no match
- (should (eq nums (cl-adjoin 2 nums :test-not myfn-p))) ; 1 matches
- (should (eq nums (cl-adjoin 3 nums :test-not myfn-p))) ; 1 and 2 matches
-
- ;; according to CLtL2 passing both :test and :test-not should signal error
- ;;(should-error (cl-adjoin 3 nums :test 'myfn-p :test-not myfn-p))
-
- ;; own :key fn
- (should (eq nums (cl-adjoin 3 nums :key (lambda (x) (if (cl-evenp x) (1+ x) x)))))
- (should (equal '(3 1 2) (cl-adjoin 3 nums :key (lambda (x) (if (cl-evenp x) (+ 2 x) x)))))
-
- ;; convert using :key, then compare with :test
- (should (eq nums (cl-adjoin 1 nums :key 'int-to-string :test 'string=)))
- (should (equal '(3 1 2) (cl-adjoin 3 nums :key 'int-to-string :test 'string=)))
- (should-error (cl-adjoin 3 nums :key 'int-to-string :test myfn-p)
- :type 'wrong-type-argument)
-
- ;; convert using :key, then compare with :test-not
- (should (eq nums (cl-adjoin 3 nums :key 'int-to-string :test-not 'string=)))
- (should (equal '(1 1) (cl-adjoin 1 '(1) :key 'int-to-string :test-not 'string=)))
- (should-error (cl-adjoin 1 nums :key 'int-to-string :test-not myfn-p)
- :type 'wrong-type-argument)))
-
-(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)))
-
-(ert-deftest cl-flet-test ()
- (should (equal (cl-flet ((f1 (x) x)) (let ((x #'f1)) (funcall x 5))) 5)))
-
-(ert-deftest cl-lib-test-typep ()
- (cl-deftype cl-lib-test-type (&optional x) `(member ,x))
- ;; Make sure we correctly implement the rule that deftype's optional args
- ;; default to `*' rather than to nil.
- (should (cl-typep '* 'cl-lib-test-type))
- (should-not (cl-typep 1 'cl-lib-test-type)))
-
-;;; cl-lib.el ends here