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Diffstat (limited to 'test/lisp/emacs-lisp/seq-tests.el')
| -rw-r--r-- | test/lisp/emacs-lisp/seq-tests.el | 341 |
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diff --git a/test/lisp/emacs-lisp/seq-tests.el b/test/lisp/emacs-lisp/seq-tests.el new file mode 100644 index 00000000000..5d936828fbb --- /dev/null +++ b/test/lisp/emacs-lisp/seq-tests.el @@ -0,0 +1,341 @@ +;;; seq-tests.el --- Tests for sequences.el + +;; Copyright (C) 2014-2015 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 |