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| | ;;; lread-tests.el --- tests for lread.c -*- lexical-binding: t; -*-
;; Copyright (C) 2016-2021 Free Software Foundation, Inc.
;; Author: Philipp Stephani <phst@google.com>
;; 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/>.
;;; Commentary:
;; Unit tests for code in src/lread.c.
;;; Code:
(require 'ert)
(require 'ert-x)
(ert-deftest lread-char-number ()
(should (equal (read "?\\N{U+A817}") #xA817)))
(ert-deftest lread-char-name-1 ()
(should (equal (read "?\\N{SYLOTI NAGRI LETTER \n DHO}")
#xA817)))
(ert-deftest lread-char-name-2 ()
(should (equal (read "?\\N{BED}") #x1F6CF)))
(ert-deftest lread-char-name-3 ()
(should (equal (read "?\\N{U+BED}") #xBED)))
(ert-deftest lread-char-name-4 ()
(should (equal (read "?\\N{VARIATION SELECTOR-1}") #xFE00)))
(ert-deftest lread-char-name-5 ()
(should (equal (read "?\\N{VARIATION SELECTOR-16}") #xFE0F)))
(ert-deftest lread-char-name-6 ()
(should (equal (read "?\\N{VARIATION SELECTOR-17}") #xE0100)))
(ert-deftest lread-char-name-7 ()
(should (equal (read "?\\N{VARIATION SELECTOR-256}") #xE01EF)))
(ert-deftest lread-char-name-8 ()
(should (equal (read "?\\N{CJK COMPATIBILITY IDEOGRAPH-F900}") #xF900)))
(ert-deftest lread-char-name-9 ()
(should (equal (read "?\\N{CJK COMPATIBILITY IDEOGRAPH-FAD9}") #xFAD9)))
(ert-deftest lread-char-name-10 ()
(should (equal (read "?\\N{CJK COMPATIBILITY IDEOGRAPH-2F800}") #x2F800)))
(ert-deftest lread-char-name-11 ()
(should (equal (read "?\\N{CJK COMPATIBILITY IDEOGRAPH-2FA1D}") #x2FA1D)))
(ert-deftest lread-char-invalid-number ()
(should-error (read "?\\N{U+110000}") :type 'invalid-read-syntax))
(ert-deftest lread-char-invalid-name-1 ()
(should-error (read "?\\N{DOES NOT EXIST}")) :type 'invalid-read-syntax)
(ert-deftest lread-char-invalid-name-2 ()
(should-error (read "?\\N{VARIATION SELECTOR-0}")) :type 'invalid-read-syntax)
(ert-deftest lread-char-invalid-name-3 ()
(should-error (read "?\\N{VARIATION SELECTOR-257}"))
:type 'invalid-read-syntax)
(ert-deftest lread-char-invalid-name-4 ()
(should-error (read "?\\N{VARIATION SELECTOR--0}"))
:type 'invalid-read-syntax)
(ert-deftest lread-char-invalid-name-5 ()
(should-error (read "?\\N{CJK COMPATIBILITY IDEOGRAPH-F8FF}"))
:type 'invalid-read-syntax)
(ert-deftest lread-char-invalid-name-6 ()
(should-error (read "?\\N{CJK COMPATIBILITY IDEOGRAPH-FADA}"))
:type 'invalid-read-syntax)
(ert-deftest lread-char-invalid-name-7 ()
(should-error (read "?\\N{CJK COMPATIBILITY IDEOGRAPH-2F7FF}"))
:type 'invalid-read-syntax)
(ert-deftest lread-char-invalid-name-8 ()
(should-error (read "?\\N{CJK COMPATIBILITY IDEOGRAPH-2FA1E}"))
:type 'invalid-read-syntax)
(ert-deftest lread-char-non-ascii-name ()
(should-error (read "?\\N{LATIN CAPITAL LETTER Ø}")
:type 'invalid-read-syntax))
(ert-deftest lread-char-empty-name ()
(should-error (read "?\\N{}") :type 'invalid-read-syntax))
(ert-deftest lread-char-surrogate-1 ()
(should-error (read "?\\N{U+D800}") :type 'invalid-read-syntax))
(ert-deftest lread-char-surrogate-2 ()
(should-error (read "?\\N{U+D801}") :type 'invalid-read-syntax))
(ert-deftest lread-char-surrogate-3 ()
(should-error (read "?\\N{U+Dffe}") :type 'invalid-read-syntax))
(ert-deftest lread-char-surrogate-4 ()
(should-error (read "?\\N{U+DFFF}") :type 'invalid-read-syntax))
(ert-deftest lread-string-char-number-1 ()
(should (equal (read "\"a\\N{U+A817}b\"") "a\uA817b")))
(ert-deftest lread-string-char-number-2 ()
(should-error (read "?\\N{0.5}") :type 'invalid-read-syntax))
(ert-deftest lread-string-char-number-3 ()
(should-error (read "?\\N{U+-0}") :type 'invalid-read-syntax))
(ert-deftest lread-string-char-name ()
(should (equal (read "\"a\\N{SYLOTI NAGRI LETTER DHO}b\"") "a\uA817b")))
(ert-deftest lread-empty-int-literal ()
"Check that Bug#25120 is fixed."
(should-error (read "#b") :type 'invalid-read-syntax)
(should-error (read "#o") :type 'invalid-read-syntax)
(should-error (read "#x") :type 'invalid-read-syntax)
(should-error (read "#24r") :type 'invalid-read-syntax)
(should-error (read "#") :type 'invalid-read-syntax))
(ert-deftest lread-record-1 ()
(should (equal '(#s(foo) #s(foo))
(read "(#1=#s(foo) #1#)"))))
(defmacro lread-tests--with-temp-file (file-name-var &rest body)
(declare (indent 1))
(cl-check-type file-name-var symbol)
`(let ((,file-name-var (make-temp-file "emacs")))
(unwind-protect
(progn ,@body)
(delete-file ,file-name-var))))
(defun lread-tests--last-message ()
(with-current-buffer "*Messages*"
(save-excursion
(goto-char (point-max))
(skip-chars-backward "\n")
(buffer-substring (line-beginning-position) (point)))))
(ert-deftest lread-tests--unescaped-char-literals ()
"Check that loading warns about unescaped character
literals (Bug#20852)."
(lread-tests--with-temp-file file-name
(write-region "?) ?( ?; ?\" ?[ ?]" nil file-name)
(should (equal (load file-name nil :nomessage :nosuffix) t))
(should (equal (lread-tests--last-message)
(concat (format-message "Loading `%s': " file-name)
"unescaped character literals "
"`?\"', `?(', `?)', `?;', `?[', `?]' detected, "
"`?\\\"', `?\\(', `?\\)', `?\\;', `?\\[', `?\\]' "
"expected!")))))
(ert-deftest lread-test-bug26837 ()
"Test for https://debbugs.gnu.org/26837 ."
(let ((load-path (cons (ert-resource-directory) load-path)))
(load "somelib" nil t)
(should (string-suffix-p "/somelib.el" (caar load-history)))
(load "somelib2" nil t)
(should (string-suffix-p "/somelib2.el" (caar load-history)))
(load "somelib" nil t)
(should (string-suffix-p "/somelib.el" (caar load-history)))))
(ert-deftest lread-lread--substitute-object-in-subtree ()
(let ((x (cons 0 1)))
(setcar x x)
(lread--substitute-object-in-subtree x 1 t)
(should (eq x (cdr x)))))
(ert-deftest lread-long-hex-integer ()
(should (bignump (read "#xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"))))
(ert-deftest lread-test-bug-31186 ()
(with-temp-buffer
(insert ";; -*- -:*-")
(should-not
;; This used to crash in lisp_file_lexically_bound_p before the
;; bug was fixed.
(eval-buffer))))
(ert-deftest lread-invalid-bytecodes ()
(should-error
(let ((load-force-doc-strings t)) (read "#[0 \"\"]"))))
(ert-deftest lread-string-to-number-trailing-dot ()
(dolist (n (list (* most-negative-fixnum most-negative-fixnum)
(1- most-negative-fixnum) most-negative-fixnum
(1+ most-negative-fixnum) -1 0 1
(1- most-positive-fixnum) most-positive-fixnum
(1+ most-positive-fixnum)
(* most-positive-fixnum most-positive-fixnum)))
(should (= n (string-to-number (format "%d." n))))))
(ert-deftest lread-circular-hash ()
(should-error (read "#s(hash-table data #0=(#0# . #0#))")))
(ert-deftest test-inhibit-interaction ()
(let ((inhibit-interaction t))
(should-error (read-char "foo: "))
(should-error (read-event "foo: "))
(should-error (read-char-exclusive "foo: "))))
;;; lread-tests.el ends here
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