1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
| | ;;; mailcap-tests.el --- tests for mailcap.el -*- lexical-binding: t -*-
;; Copyright (C) 2017-2022 Free Software Foundation, Inc.
;; Author: Mark Oteiza <mvoteiza@udel.edu>
;; 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:
;;; Code:
(require 'ert)
(require 'ert-x)
(require 'mailcap)
(defconst mailcap-tests-path (ert-resource-file "mime.types")
"String used as PATH argument of `mailcap-parse-mimetypes'.")
(defconst mailcap-tests-mime-extensions (copy-alist mailcap-mime-extensions))
(defconst mailcap-tests-path-extensions
'((".wav" . "audio/x-wav")
(".flac" . "audio/flac")
(".opus" . "audio/ogg"))
"Alist of MIME associations in `mailcap-tests-path'.")
(ert-deftest mailcap-mimetypes-parsed-p ()
(should (null mailcap-mimetypes-parsed-p)))
(ert-deftest mailcap-parse-empty-path ()
"If PATH is empty, this should be a noop."
(mailcap-parse-mimetypes "file/that/should/not/exist" t)
(should mailcap-mimetypes-parsed-p)
(should (equal mailcap-mime-extensions mailcap-tests-mime-extensions)))
(ert-deftest mailcap-parse-path ()
(let ((mimetypes (getenv "MIMETYPES")))
(unwind-protect
(progn
(setenv "MIMETYPES" mailcap-tests-path)
(mailcap-parse-mimetypes nil t))
(setenv "MIMETYPES" mimetypes)))
(should (equal mailcap-mime-extensions
(append mailcap-tests-path-extensions
mailcap-tests-mime-extensions)))
;; Already parsed this, should be a noop
(mailcap-parse-mimetypes mailcap-tests-path)
(should (equal mailcap-mime-extensions
(append mailcap-tests-path-extensions
mailcap-tests-mime-extensions))))
(defmacro with-pristine-mailcap (&rest body)
;; We only want the mailcap info we define ourselves.
`(let (mailcap--computed-mime-data
mailcap-mime-data
mailcap-user-mime-data)
;; `mailcap-mime-info' calls `mailcap-parse-mailcaps' which parses
;; the system's mailcaps. We don't want that for our test.
(cl-letf (((symbol-function 'mailcap-parse-mailcaps) #'ignore))
,@body)))
(ert-deftest mailcap-parsing-and-mailcap-mime-info ()
(with-pristine-mailcap
;; One mailcap entry has a test=false field. The shell command
;; execution errors when running the tests from the Makefile
;; because then HOME=/nonexistent.
(ert-with-temp-directory home
(setenv "HOME" home)
;; Now parse our resource mailcap file.
(mailcap-parse-mailcap (ert-resource-file "mailcap"))
;; Assert that we get what we have defined.
(dolist (type '("audio/ogg" "audio/flac"))
(should (string= "mpv %s" (mailcap-mime-info type))))
(should (string= "aplay %s" (mailcap-mime-info "audio/x-wav")))
(should (string= "emacsclient -t %s"
(mailcap-mime-info "text/plain")))
;; evince is chosen because acroread has test=false and okular
;; comes later.
(should (string= "evince %s"
(mailcap-mime-info "application/pdf")))
(should (string= "inkscape %s"
(mailcap-mime-info "image/svg+xml")))
(should (string= "eog %s"
(mailcap-mime-info "image/jpg")))
;; With REQUEST being a number, all fields of the selected entry
;; should be returned.
(should (equal '((viewer . "evince %s")
(type . "application/pdf"))
(mailcap-mime-info "application/pdf" 1)))
;; With 'all, all applicable entries should be returned.
(should (equal '(((viewer . "evince %s")
(type . "application/pdf"))
((viewer . "okular %s")
(type . "application/pdf")))
(mailcap-mime-info "application/pdf" 'all)))
(let* ((c nil)
(toggle (lambda (_) (setq c (not c)))))
(mailcap-add "audio/ogg" "toggle %s" toggle)
(should (string= "toggle %s" (mailcap-mime-info "audio/ogg")))
;; The test results are cached, so in order to have the test
;; re-evaluated, one needs to clear the cache.
(setq mailcap-viewer-test-cache nil)
(should (string= "mpv %s" (mailcap-mime-info "audio/ogg")))
(setq mailcap-viewer-test-cache nil)
(should (string= "toggle %s" (mailcap-mime-info "audio/ogg")))))))
(defvar mailcap--test-result nil)
(defun mailcap--test-viewer ()
(setq mailcap--test-result (string= (buffer-string) "test\n")))
(ert-deftest mailcap-view-file ()
(with-pristine-mailcap
;; Try using a lambda as viewer and check wether
;; `mailcap-view-file' works correctly.
(let* ((mailcap-mime-extensions '((".test" . "test/test"))))
(mailcap-add "test/test" 'mailcap--test-viewer)
(save-window-excursion
(mailcap-view-file (ert-resource-file "test.test")))
(should mailcap--test-result))))
;;; mailcap-tests.el ends here
|