emacs/test/lisp/emacs-lisp/pp-tests.el

89 lines
3.2 KiB
EmacsLisp

;;; pp-tests.el --- Test suite for pretty printer. -*- lexical-binding: t -*-
;; Copyright (C) 2017-2024 Free Software Foundation, Inc.
;; 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 <https://www.gnu.org/licenses/>.
;;; Code:
(require 'pp)
(require 'ert-x)
(ert-deftest pp-print-quote ()
(should (string= (pp-to-string 'quote) "quote\n"))
(should (string= (pp-to-string ''quote) "'quote\n"))
(should (string= (pp-to-string '('a 'b)) "('a 'b)\n"))
(should (string= (pp-to-string '(''quote 'quote)) "(''quote 'quote)\n"))
(should (string= (pp-to-string '(quote)) "(quote)\n"))
(should (string= (pp-to-string '(quote . quote)) "(quote . quote)\n"))
(should (string= (pp-to-string '(quote a b)) "(quote a b)\n"))
(should (string= (pp-to-string '(quotefoo)) "(quotefoo)\n"))
(should (string= (pp-to-string '(a b)) "(a b)\n")))
(ert-deftest test-indentation ()
(ert-test-erts-file (ert-resource-file "code-formats.erts")))
(defun pp-tests--dimensions ()
(save-excursion
(let ((width 0)
(height 0))
(goto-char (point-min))
(while (not (eobp))
(end-of-line)
(setq height (1+ height))
(setq width (max width (current-column)))
(forward-char 1))
(cons width height))))
(ert-deftest pp-tests--cut-before ()
(with-temp-buffer
(lisp-data-mode)
(pp '(1 (quite-a-long-package-name
. [(0 10 0) ((avy (0 5 0))) "Quickly switch windows." tar
((:url . "https://github.com/abo-abo/ace-window")
(:maintainer "Oleh Krehel" . "ohwoeowho@gmail.com")
(:authors ("Oleh Krehel" . "ohwoeowho@gmail.com"))
(:keywords "window" "location"))]))
(current-buffer))
;; (message "Filled:\n%s" (buffer-string))
(let ((dimensions (pp-tests--dimensions)))
(should (< (car dimensions) 80))
(should (< (cdr dimensions) 8)))
(goto-char (point-min))
(while (search-forward "." nil t)
(should (not (eolp))))))
(ert-deftest pp-tests--sanity ()
(with-temp-buffer
(lisp-data-mode)
(let ((testdata "(a b c #1=#[0 \"\" [] 0] #s(foo #1# bar))"))
(let ((res (car (read-from-string testdata))))
(dotimes (i (length testdata))
(erase-buffer)
(insert testdata)
(let ((fill-column i))
(pp-fill (point-min) (point-max))
(goto-char (point-min))
(condition-case err
(should (equal (read (current-buffer)) res))
(invalid-read-syntax
(message "Invalid fill result with i=%d:\n%s"
i (buffer-string))
(signal (car err) (cdr err))
))))))))
;;; pp-tests.el ends here.