603 lines
21 KiB
EmacsLisp
603 lines
21 KiB
EmacsLisp
;;; seq-tests.el --- Tests for seq.el -*- lexical-binding:t -*-
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;; Copyright (C) 2014-2024 Free Software Foundation, Inc.
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;; Author: Nicolas Petton <nicolas@petton.fr>
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;; Maintainer: emacs-devel@gnu.org
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Tests for sequences.el
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;;; Code:
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(require 'ert)
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(require 'seq)
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(eval-when-compile
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(require 'cl-lib))
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(defmacro with-test-sequences (spec &rest body)
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"Successively bind VAR to a list, vector, and string built from SEQ.
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Evaluate BODY for each created sequence.
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\(fn (var seq) body)"
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(declare (indent 1) (debug ((symbolp form) body)))
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(let ((initial-seq (make-symbol "initial-seq")))
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`(let ((,initial-seq ,(cadr spec)))
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,@(mapcar (lambda (s)
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`(let ((,(car spec) (apply (function ,s) ,initial-seq)))
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,@body))
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'(list vector string)))))
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(defun same-contents-p (seq1 seq2)
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"Return t if SEQ1 and SEQ2 have the same contents, nil otherwise."
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(equal (append seq1 '()) (append seq2 '())))
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(defun test-sequences-evenp (integer)
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"Return t if INTEGER is even."
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(eq (logand integer 1) 0))
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(defun test-sequences-oddp (integer)
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"Return t if INTEGER is odd."
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(not (test-sequences-evenp integer)))
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(ert-deftest test-setf-seq-elt ()
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(with-test-sequences (seq '(1 2 3))
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(setf (seq-elt seq 1) 4)
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(should (= 4 (seq-elt seq 1)))))
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(ert-deftest test-seq-drop ()
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(with-test-sequences (seq '(1 2 3 4))
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(should (equal (seq-drop seq 0) seq))
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(should (equal (seq-drop seq 1) (seq-subseq seq 1)))
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(should (equal (seq-drop seq 2) (seq-subseq seq 2)))
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(should (seq-empty-p (seq-drop seq 4)))
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(should (seq-empty-p (seq-drop seq 10))))
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(with-test-sequences (seq '())
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(should (seq-empty-p (seq-drop seq 0)))
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(should (seq-empty-p (seq-drop seq 1)))))
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(ert-deftest test-seq-take ()
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(with-test-sequences (seq '(2 3 4 5))
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(should (seq-empty-p (seq-take seq 0)))
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(should (= (seq-length (seq-take seq 1)) 1))
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(should (= (seq-elt (seq-take seq 1) 0) 2))
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(should (same-contents-p (seq-take seq 3) '(2 3 4)))
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(should (equal (seq-take seq 10) seq))))
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(ert-deftest test-seq-drop-while ()
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(with-test-sequences (seq '(1 3 2 4))
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(should (equal (seq-drop-while #'test-sequences-oddp seq)
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(seq-drop seq 2)))
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(should (equal (seq-drop-while #'test-sequences-evenp seq)
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seq))
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(should (seq-empty-p (seq-drop-while #'numberp seq))))
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(with-test-sequences (seq '())
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(should (seq-empty-p (seq-drop-while #'test-sequences-oddp seq)))))
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(ert-deftest test-seq-take-while ()
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(with-test-sequences (seq '(1 3 2 4))
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(should (equal (seq-take-while #'test-sequences-oddp seq)
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(seq-take seq 2)))
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(should (seq-empty-p (seq-take-while #'test-sequences-evenp seq)))
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(should (equal (seq-take-while #'numberp seq) seq)))
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(with-test-sequences (seq '())
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(should (seq-empty-p (seq-take-while #'test-sequences-oddp seq)))))
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(ert-deftest test-seq-map-indexed ()
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(should (equal (seq-map-indexed (lambda (elt i)
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(list elt i))
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nil)
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nil))
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(should (equal (seq-map-indexed (lambda (elt i)
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(list elt i))
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'(a b c d))
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'((a 0) (b 1) (c 2) (d 3)))))
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(ert-deftest test-seq-do-indexed ()
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(let (result)
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(seq-do-indexed (lambda (elt i) (push (list elt i) result)) ())
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(should-not result))
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(with-test-sequences (seq '(4 5 6))
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(let (result)
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(seq-do-indexed (lambda (elt i) (push (list elt i) result)) seq)
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(should (equal (seq-elt result 0) '(6 2)))
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(should (equal (seq-elt result 1) '(5 1)))
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(should (equal (seq-elt result 2) '(4 0))))))
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(ert-deftest test-seq-filter ()
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(with-test-sequences (seq '(6 7 8 9 10))
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(should (equal (seq-filter #'test-sequences-evenp seq) '(6 8 10)))
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(should (equal (seq-filter #'test-sequences-oddp seq) '(7 9)))
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(should (equal (seq-filter (lambda (_) nil) seq) '())))
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(with-test-sequences (seq '())
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(should (equal (seq-filter #'test-sequences-evenp seq) '()))))
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(ert-deftest test-seq-remove ()
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(with-test-sequences (seq '(6 7 8 9 10))
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(should (equal (seq-remove #'test-sequences-evenp seq) '(7 9)))
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(should (equal (seq-remove #'test-sequences-oddp seq) '(6 8 10)))
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(should (same-contents-p (seq-remove (lambda (_) nil) seq) seq)))
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(with-test-sequences (seq '())
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(should (equal (seq-remove #'test-sequences-evenp seq) '()))))
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(ert-deftest test-seq-remove-at-position ()
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(with-test-sequences (seq '(1 2 3 4))
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(should (same-contents-p (seq-remove-at-position seq 2) '(1 2 4)))
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(should (same-contents-p (seq-remove-at-position seq 0) '(2 3 4)))
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(should (same-contents-p (seq-remove-at-position seq 3) '(1 2 3)))
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(should (eq (type-of (seq-remove-at-position seq 2))
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(type-of seq)))))
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(ert-deftest test-seq-count ()
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(with-test-sequences (seq '(6 7 8 9 10))
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(should (equal (seq-count #'test-sequences-evenp seq) 3))
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(should (equal (seq-count #'test-sequences-oddp seq) 2))
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(should (equal (seq-count (lambda (_) nil) seq) 0)))
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(with-test-sequences (seq '())
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(should (equal (seq-count #'test-sequences-evenp seq) 0))))
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(ert-deftest test-seq-reduce ()
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(with-test-sequences (seq '(1 2 3 4))
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(should (= (seq-reduce #'+ seq 0) 10))
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(should (= (seq-reduce #'+ seq 5) 15)))
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(with-test-sequences (seq '())
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(should (eq (seq-reduce #'+ seq 0) 0))
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(should (eq (seq-reduce #'+ seq 7) 7))))
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(ert-deftest test-seq-some ()
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(with-test-sequences (seq '(4 3 2 1))
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(should (seq-some #'test-sequences-evenp seq))
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(should (seq-some #'test-sequences-oddp seq))
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(should-not (seq-some (lambda (elt) (> elt 10)) seq)))
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(with-test-sequences (seq '())
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(should-not (seq-some #'test-sequences-oddp seq)))
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(should (seq-some #'null '(1 nil 2))))
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(ert-deftest test-seq-find ()
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(with-test-sequences (seq '(4 3 2 1))
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(should (= 4 (seq-find #'test-sequences-evenp seq)))
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(should (= 3 (seq-find #'test-sequences-oddp seq)))
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(should-not (seq-find (lambda (elt) (> elt 10)) seq)))
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(should-not (seq-find #'null '(1 nil 2)))
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(should-not (seq-find #'null '(1 nil 2) t))
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(should-not (seq-find #'null '(1 2 3)))
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(should (seq-find #'null '(1 2 3) 'sentinel)))
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(ert-deftest test-seq-contains ()
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(with-suppressed-warnings ((obsolete seq-contains))
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(with-test-sequences (seq '(3 4 5 6))
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(should (seq-contains seq 3))
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(should-not (seq-contains seq 7)))
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(with-test-sequences (seq '())
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(should-not (seq-contains seq 3))
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(should-not (seq-contains seq nil)))))
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(ert-deftest test-seq-contains-should-return-the-elt ()
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(with-suppressed-warnings ((obsolete seq-contains))
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(with-test-sequences (seq '(3 4 5 6))
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(should (= 5 (seq-contains seq 5))))))
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(ert-deftest test-seq-contains-p ()
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(with-test-sequences (seq '(3 4 5 6))
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(should (eq (seq-contains-p seq 3) t))
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(should-not (seq-contains-p seq 7)))
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(with-test-sequences (seq '())
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(should-not (seq-contains-p seq 3))
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(should-not (seq-contains-p seq nil))))
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(ert-deftest test-seq-contains-p-with-nil ()
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(should (seq-contains-p [nil] nil))
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(should (seq-contains-p '(nil) nil)))
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(ert-deftest test-seq-every-p ()
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(with-test-sequences (seq '(43 54 22 1))
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(should (seq-every-p (lambda (_) t) seq))
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(should-not (seq-every-p #'test-sequences-oddp seq))
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(should-not (seq-every-p #'test-sequences-evenp seq)))
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(with-test-sequences (seq '(42 54 22 2))
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(should (seq-every-p #'test-sequences-evenp seq))
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(should-not (seq-every-p #'test-sequences-oddp seq)))
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(with-test-sequences (seq '())
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(should (seq-every-p #'identity seq))
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(should (seq-every-p #'test-sequences-evenp seq))))
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(ert-deftest test-seq-set-equal-p ()
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(with-test-sequences (seq1 '(1 2 3))
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(should (seq-set-equal-p seq1 seq1))
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(should (seq-set-equal-p seq1 seq1 #'eq))
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(with-test-sequences (seq2 '(3 2 1))
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(should (seq-set-equal-p seq1 seq2))
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(should (seq-set-equal-p seq2 seq1))
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(should (seq-set-equal-p seq1 seq2 #'eq))
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(should (seq-set-equal-p seq2 seq1 #'eq)))
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(with-test-sequences (seq2 '(3 1))
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(should-not (seq-set-equal-p seq1 seq2))
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(should-not (seq-set-equal-p seq2 seq1))))
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(should (seq-set-equal-p '("a" "b" "c")
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'("c" "b" "a")))
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(should-not (seq-set-equal-p '("a" "b" "c")
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'("c" "b" "a") #'eq))
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(should-not (seq-set-equal-p '(("a" 1) ("b" 1) ("c" 1))
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'(("c" 2) ("b" 2) ("a" 2))))
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(should (seq-set-equal-p '(("a" 1) ("b" 1) ("c" 1))
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'(("c" 2) ("b" 2) ("a" 2))
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(lambda (i1 i2) (equal (car i1) (car i2))))))
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(ert-deftest test-seq-empty-p ()
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(with-test-sequences (seq '(0))
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(should-not (seq-empty-p seq)))
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(with-test-sequences (seq '(0 1 2))
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(should-not (seq-empty-p seq)))
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(with-test-sequences (seq '())
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(should (seq-empty-p seq))))
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(ert-deftest test-seq-sort ()
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(should (equal (seq-sort #'< "cbaf") "abcf"))
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(should (equal (seq-sort #'< '(2 1 9 4)) '(1 2 4 9)))
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(should (equal (seq-sort #'< [2 1 9 4]) [1 2 4 9]))
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(should (equal (seq-sort #'< "") "")))
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(ert-deftest test-seq-uniq ()
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(with-test-sequences (seq '(2 4 6 8 6 4 3))
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(should (equal (seq-uniq seq) '(2 4 6 8 3))))
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(with-test-sequences (seq '(3 3 3 3 3))
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(should (equal (seq-uniq seq) '(3))))
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(with-test-sequences (seq '())
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(should (equal (seq-uniq seq) '()))))
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(defun seq-tests--list-subseq-ref (list start &optional end)
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"Reference implementation of `seq-subseq' for lists."
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(let ((len (length list)))
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(when (< start 0)
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(setq start (+ start len)))
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(unless end
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(setq end len))
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(when (< end 0)
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(setq end (+ end len)))
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(if (<= 0 start end len)
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(take (- end start) (nthcdr start list))
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(error "bad args"))))
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(ert-deftest test-seq-subseq ()
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(with-test-sequences (seq '(2 3 4 5))
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(should (equal (seq-subseq seq 0 4) seq))
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(should (same-contents-p (seq-subseq seq 2 4) '(4 5)))
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(should (same-contents-p (seq-subseq seq 1 3) '(3 4)))
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(should (same-contents-p (seq-subseq seq 1 -1) '(3 4))))
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(should (vectorp (seq-subseq [2 3 4 5] 2)))
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(should (stringp (seq-subseq "foo" 2 3)))
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(should (listp (seq-subseq '(2 3 4 4) 2 3)))
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(should-error (seq-subseq '(1 2 3) 4))
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(should-not (seq-subseq '(1 2 3) 3))
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(should (seq-subseq '(1 2 3) -3))
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(should-error (seq-subseq '(1 2 3) 1 4))
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(should (seq-subseq '(1 2 3) 1 3))
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(should-error (seq-subseq '() -1))
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(should-error (seq-subseq [] -1))
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(should-error (seq-subseq "" -1))
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(should-not (seq-subseq '() 0))
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(should-error (seq-subseq '() 0 -1))
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(dolist (list '(() (a b c d)))
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(ert-info ((prin1-to-string list) :prefix "list: ")
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(let ((len (length list)))
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(dolist (start (number-sequence (- -2 len) (+ 2 len)))
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(ert-info ((prin1-to-string start) :prefix "start: ")
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(dolist (end (cons nil (number-sequence (- -2 len) (+ 2 len))))
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(ert-info ((prin1-to-string end) :prefix "end: ")
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(condition-case res
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(seq-tests--list-subseq-ref list start end)
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(error
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(should-error (seq-subseq list start end)))
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(:success
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(should (equal (seq-subseq list start end) res))))))))))))
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(ert-deftest test-seq-concatenate ()
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(with-test-sequences (seq '(2 4 6))
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(should (equal (seq-concatenate 'string seq [8]) (string 2 4 6 8)))
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(should (equal (seq-concatenate 'list seq '(8 10)) '(2 4 6 8 10)))
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(should (equal (seq-concatenate 'vector seq '(8 10)) [2 4 6 8 10]))
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(should (equal (seq-concatenate 'vector nil '(8 10)) [8 10]))
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(should (equal (seq-concatenate 'vector seq nil) [2 4 6]))))
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(ert-deftest test-seq-mapcat ()
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(should (equal (seq-mapcat #'seq-reverse '((3 2 1) (6 5 4)))
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'(1 2 3 4 5 6)))
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(should (equal (seq-mapcat #'seq-reverse '[(3 2 1) (6 5 4)])
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'(1 2 3 4 5 6)))
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(should (equal (seq-mapcat #'seq-reverse '((3 2 1) (6 5 4)) 'vector)
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'[1 2 3 4 5 6])))
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(ert-deftest test-seq-partition ()
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(should (same-contents-p (seq-partition '(0 1 2 3 4 5 6 7) 3)
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'((0 1 2) (3 4 5) (6 7))))
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(should (same-contents-p (seq-partition '[0 1 2 3 4 5 6 7] 3)
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'([0 1 2] [3 4 5] [6 7])))
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(should (same-contents-p (seq-partition "Hello world" 2)
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'("He" "ll" "o " "wo" "rl" "d")))
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(should (equal (seq-partition '() 2) '()))
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(should (equal (seq-partition '(1 2 3) -1) '())))
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(ert-deftest test-seq-group-by ()
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(with-test-sequences (seq '(1 2 3 4))
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(should (equal (seq-group-by #'test-sequences-oddp seq)
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'((t 1 3) (nil 2 4)))))
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(should (equal (seq-group-by #'car '((a 1) (b 3) (c 4) (a 2)))
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'((b (b 3)) (c (c 4)) (a (a 1) (a 2))))))
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(ert-deftest test-seq-reverse ()
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(with-test-sequences (seq '(1 2 3 4))
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(should (same-contents-p (seq-reverse seq) '(4 3 2 1)))
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(should (equal (type-of (seq-reverse seq))
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(type-of seq)))))
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(ert-deftest test-seq-into ()
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(let* ((vector [1 2 3])
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(list (seq-into vector 'list)))
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(should (same-contents-p vector list))
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(should (listp list)))
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(let* ((list '(hello world))
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(vector (seq-into list 'vector)))
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(should (same-contents-p vector list))
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(should (vectorp vector)))
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(let* ((string "hello")
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(list (seq-into string 'list)))
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(should (same-contents-p string list))
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(should (stringp string)))
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(let* ((string "hello")
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(vector (seq-into string 'vector)))
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(should (same-contents-p string vector))
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(should (stringp string)))
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(let* ((list nil)
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(vector (seq-into list 'vector)))
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(should (same-contents-p list vector))
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(should (vectorp vector))))
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(ert-deftest test-seq-union ()
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(let ((v1 '(1 2 3))
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(v2 '(3 5)))
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(should (same-contents-p (seq-union v1 v2)
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'(1 2 3 5))))
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(let ((v1 '(1 2 3 4 5 6))
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(v2 '(4 5 6 7 8 9)))
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(should (same-contents-p (seq-union v1 v2)
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'(1 2 3 4 5 6 7 8 9))))
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(let ((v1 [1 2 3 4 5])
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(v2 [4 5 6 "a"]))
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(should (same-contents-p (seq-union v1 v2)
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'(1 2 3 4 5 6 "a"))))
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(let ((v1 '("a" "b" "c"))
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(v2 '("f" "c" "e" "a")))
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(should (same-contents-p (seq-union v1 v2)
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'("a" "b" "c" "f" "e"))))
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(let ((v1 '("a"))
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(v2 '("a"))
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(testfn #'eq))
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(should (same-contents-p (seq-union v1 v2 testfn)
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'("a" "a")))))
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(ert-deftest test-seq-intersection ()
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(let ((v1 [2 3 4 5])
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(v2 [1 3 5 6 7]))
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(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 nil))
|
|
(seq-let (a b c) seq
|
|
(should (null a))
|
|
(should (null b))
|
|
(should (null c)))))
|
|
|
|
(ert-deftest test-seq-setq ()
|
|
(with-test-sequences (seq '(1 2 3 4))
|
|
(let (a b c d e)
|
|
(seq-setq (a b c d e) seq)
|
|
(should (= a 1))
|
|
(should (= b 2))
|
|
(should (= c 3))
|
|
(should (= d 4))
|
|
(should (null e)))
|
|
(let (a b others)
|
|
(seq-setq (a b &rest others) seq)
|
|
(should (= a 1))
|
|
(should (= b 2))
|
|
(should (same-contents-p others (seq-drop seq 2)))))
|
|
(let ((a)
|
|
(seq '(1 (2 (3 (4))))))
|
|
(seq-setq (_ (_ (_ (a)))) seq)
|
|
(should (= a 4)))
|
|
(let ((seq nil) a b c)
|
|
(seq-setq (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)))))
|
|
|
|
(ert-deftest test-seq-positions ()
|
|
(with-test-sequences (seq '(1 2 3 1 4))
|
|
(should (equal '(0 3) (seq-positions seq 1)))
|
|
(should (seq-empty-p (seq-positions seq 9))))
|
|
(with-test-sequences (seq '(11 5 7 12 9 15))
|
|
(should (equal '(0 3 5) (seq-positions seq 10 #'>=)))))
|
|
|
|
(ert-deftest test-seq-sort-by ()
|
|
(let ((seq ["x" "xx" "xxx"]))
|
|
(should (equal (seq-sort-by #'seq-length #'> seq)
|
|
["xxx" "xx" "x"]))))
|
|
|
|
(ert-deftest test-seq-random-elt-take-all ()
|
|
(let ((seq '(a b c d e))
|
|
elts)
|
|
(dotimes (_ 1000)
|
|
(let ((random-elt (seq-random-elt seq)))
|
|
(cl-pushnew random-elt elts)))
|
|
(should (= 5 (length elts)))))
|
|
|
|
(ert-deftest test-seq-random-elt-signal-on-empty ()
|
|
(should-error (seq-random-elt nil))
|
|
(should-error (seq-random-elt []))
|
|
(should-error (seq-random-elt "")))
|
|
|
|
(ert-deftest test-seq-mapn-circular-lists ()
|
|
(let ((l1 '#1=(1 . #1#)))
|
|
(should (equal (seq-mapn #'+ '(3 4 5 7) l1)
|
|
'(4 5 6 8)))))
|
|
|
|
(ert-deftest test-seq-into-and-identity ()
|
|
(let ((lst '(1 2 3))
|
|
(vec [1 2 3])
|
|
(str "foo bar"))
|
|
(should (eq (seq-into lst 'list) lst))
|
|
(should (eq (seq-into vec 'vector) vec))
|
|
(should (eq (seq-into str 'string) str))))
|
|
|
|
(ert-deftest test-seq-first ()
|
|
(let ((lst '(1 2 3))
|
|
(vec [1 2 3]))
|
|
(should (eq (seq-first lst) 1))
|
|
(should (eq (seq-first vec) 1))))
|
|
|
|
(ert-deftest test-seq-rest ()
|
|
(let ((lst '(1 2 3))
|
|
(vec [1 2 3]))
|
|
(should (equal (seq-rest lst) '(2 3)))
|
|
(should (equal (seq-rest vec) [2 3]))))
|
|
|
|
;; Regression tests for bug#34852
|
|
(progn
|
|
(ert-deftest test-seq-intersection-with-nil ()
|
|
(should (equal (seq-intersection '(1 2 nil) '(1 nil)) '(1 nil))))
|
|
|
|
(ert-deftest test-seq-set-equal-p-with-nil ()
|
|
(should (seq-set-equal-p '("a" "b" nil)
|
|
'(nil "b" "a"))))
|
|
|
|
(ert-deftest test-difference-with-nil ()
|
|
(should (equal (seq-difference '(1 nil) '(2 nil))
|
|
'(1)))))
|
|
|
|
(ert-deftest test-seq-split ()
|
|
(let ((seq [0 1 2 3 4 5 6 7 8 9 10]))
|
|
(should (equal seq (car (seq-split seq 20))))
|
|
(should (equal seq (car (seq-split seq 11))))
|
|
(should (equal (seq-split seq 10)
|
|
'([0 1 2 3 4 5 6 7 8 9] [10])))
|
|
(should (equal (seq-split seq 5)
|
|
'([0 1 2 3 4] [5 6 7 8 9] [10])))
|
|
(should (equal (seq-split seq 1)
|
|
'([0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10])))
|
|
(should-error (seq-split seq 0))
|
|
(should-error (seq-split seq -10)))
|
|
(let ((seq '(0 1 2 3 4 5 6 7 8 9)))
|
|
(should (equal (seq-split seq 5)
|
|
'((0 1 2 3 4) (5 6 7 8 9)))))
|
|
(let ((seq "0123456789"))
|
|
(should (equal (seq-split seq 2)
|
|
'("01" "23" "45" "67" "89")))
|
|
(should (equal (seq-split seq 3)
|
|
'("012" "345" "678" "9")))))
|
|
|
|
(ert-deftest test-seq-uniq-list ()
|
|
(let ((list '(1 2 3)))
|
|
(should (equal (seq-uniq (append list list)) '(1 2 3))))
|
|
(let ((list '(1 2 3 2 1)))
|
|
(should (equal (seq-uniq list) '(1 2 3))))
|
|
(let ((list (list (substring "1")
|
|
(substring "2")
|
|
(substring "3")
|
|
(substring "2")
|
|
(substring "1"))))
|
|
(should (equal (seq-uniq list) '("1" "2" "3")))
|
|
(should (equal (seq-uniq list #'eq) '("1" "2" "3" "2" "1"))))
|
|
;; Long lists have a different code path.
|
|
(let ((list (seq-map-indexed (lambda (_ i) i)
|
|
(make-list 10000 nil))))
|
|
(should (= (length list) 10000))
|
|
(should (= (length (seq-uniq (append list list))) 10000))))
|
|
|
|
(ert-deftest test-seq-keep ()
|
|
(should (equal (seq-keep #'cl-digit-char-p '(?6 ?a ?7))
|
|
'(6 7)))
|
|
(should (equal (seq-keep #'cl-digit-char-p [?6 ?a ?7])
|
|
'(6 7))))
|
|
|
|
(provide 'seq-tests)
|
|
;;; seq-tests.el ends here
|