;;; message-mode-tests.el --- Tests for message-mode  -*- lexical-binding: t; -*-

;; Copyright (C) 2015-2016 Free Software Foundation, Inc.

;; Author: João Távora <joaotavora@gmail.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 <http://www.gnu.org/licenses/>.

;;; Commentary:

;; This file contains tests for message-mode.

;;; Code:

(require 'message)
(require 'ert)
(require 'ert-x)

(ert-deftest message-mode-propertize ()
  (with-temp-buffer
    (unwind-protect
        (let (message-auto-save-directory)
          (message-mode)
          (insert "here's an opener (\n"
                  "here's a sad face :-(\n"
                  "> here's citing someone with an opener (\n"
                  "and here's a closer ")
          (let ((last-command-event ?\)))
            (ert-simulate-command '(self-insert-command 1)))
          ;; Auto syntax propertization doesn't kick in until
          ;; parse-sexp-lookup-properties is set.
          (setq-local parse-sexp-lookup-properties t)
          (backward-sexp)
          (should (string= "here's an opener "
                           (buffer-substring-no-properties
                            (line-beginning-position)
                            (point))))
          (forward-sexp)
          (should (string= "and here's a closer )"
                           (buffer-substring-no-properties
                            (line-beginning-position)
                            (point)))))
      (set-buffer-modified-p nil))))


(ert-deftest message-strip-subject-trailing-was ()
  (ert-with-function-mocked message-talkative-question nil
    (with-temp-buffer
      (let ((no-was "Re: Foo ")
            (with-was "Re: Foo \t (was: Bar ) ")
            (stripped-was "Re: Foo")
            reply)

        ;; Test unconditional stripping
        (setq-local message-subject-trailing-was-query t)
        (should (string= no-was (message-strip-subject-trailing-was no-was)))
        (should (string= stripped-was
                         (message-strip-subject-trailing-was with-was)))

        ;; Test asking
        (setq-local message-subject-trailing-was-query 'ask)
        (fset 'message-talkative-question
              (lambda (_ question show text)
                (should (string= "Strip `(was: <old subject>)' in subject? "
                                 question))
                (should show)
                (should (string-match
                         (concat
                          "Strip `(was: <old subject>)' in subject "
                          "and use the new one instead\\?\n\n"
                          "Current subject is:   \"\\(.*\\)\"\n\n"
                          "New subject would be: \"\\(.*\\)\"\n\n"
                          "See the variable "
                          "`message-subject-trailing-was-query' "
                          "to get rid of this query.")
                         text))
                (should (string= (match-string 1 text) with-was))
                (should (string= (match-string 2 text) stripped-was))
                reply))
        (message-strip-subject-trailing-was with-was)
        (should (string= with-was
                         (message-strip-subject-trailing-was with-was)))
        (setq reply t)
        (should (string= stripped-was
                         (message-strip-subject-trailing-was with-was)))))))


(provide 'message-mode-tests)

;;; message-mode-tests.el ends here