blob: 9aa73cbeed853f10f20e613d10fdc3a74f553481 (
plain)
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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
;;; test-custom-buffer-file-print-diff-eww.el --- Tests for the print/diff/eww/email helpers -*- lexical-binding: t; -*-
;;; Commentary:
;; Sibling tests cover the move/rename/copy/clear family. This file
;; fills in the remaining helpers and dispatchers:
;;
;; cj/print--resolve-spooler
;; cj/copy-buffer-name
;; cj/--diff-with-regular-diff
;; cj/diff-buffer-with-file
;; cj/view-buffer-in-eww
;; cj/--email-handle-is-type-p
;;
;; External processes (`call-process', `executable-find', `lpr', `lp',
;; `difft', `diff', `eww-open-file') are stubbed so the tests don't
;; require any of those tools.
;;; Code:
(require 'ert)
(require 'cl-lib)
(add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
(require 'custom-buffer-file)
;;; ---------- cj/print--resolve-spooler ----------
(ert-deftest test-cbf-resolve-spooler-explicit-string-and-on-path ()
"Normal: explicit string spooler on PATH is returned verbatim."
(let ((cj/print-spooler-command "lpr")
(cj/print--spooler-cache nil))
(cl-letf (((symbol-function 'executable-find)
(lambda (cmd) (when (equal cmd "lpr") "/usr/bin/lpr"))))
(should (equal (cj/print--resolve-spooler) "lpr")))))
(ert-deftest test-cbf-resolve-spooler-explicit-string-missing-errors ()
"Error: explicit string spooler not on PATH signals user-error."
(let ((cj/print-spooler-command "notathing")
(cj/print--spooler-cache nil))
(cl-letf (((symbol-function 'executable-find) (lambda (_) nil)))
(should-error (cj/print--resolve-spooler) :type 'user-error))))
(ert-deftest test-cbf-resolve-spooler-auto-detects-lpr-first ()
"Normal: `auto' prefers lpr over lp and caches the result."
(let ((cj/print-spooler-command 'auto)
(cj/print--spooler-cache nil))
(cl-letf (((symbol-function 'executable-find)
(lambda (cmd) (when (equal cmd "lpr") "/usr/bin/lpr"))))
(should (equal (cj/print--resolve-spooler) "lpr"))
(should (equal cj/print--spooler-cache "lpr")))))
(ert-deftest test-cbf-resolve-spooler-auto-falls-back-to-lp ()
"Boundary: when lpr is missing but lp is on PATH, lp wins."
(let ((cj/print-spooler-command 'auto)
(cj/print--spooler-cache nil))
(cl-letf (((symbol-function 'executable-find)
(lambda (cmd) (when (equal cmd "lp") "/usr/bin/lp"))))
(should (equal (cj/print--resolve-spooler) "lp")))))
(ert-deftest test-cbf-resolve-spooler-auto-no-tool-errors ()
"Error: `auto' with neither lpr nor lp signals user-error."
(let ((cj/print-spooler-command 'auto)
(cj/print--spooler-cache nil))
(cl-letf (((symbol-function 'executable-find) (lambda (_) nil)))
(should-error (cj/print--resolve-spooler) :type 'user-error))))
(ert-deftest test-cbf-resolve-spooler-auto-returns-cached-value ()
"Boundary: a non-nil cache short-circuits the auto-detect."
(let ((cj/print-spooler-command 'auto)
(cj/print--spooler-cache "cached-cmd"))
(cl-letf (((symbol-function 'executable-find)
(lambda (_) (error "should not be called"))))
(should (equal (cj/print--resolve-spooler) "cached-cmd")))))
(ert-deftest test-cbf-resolve-spooler-invalid-value-errors ()
"Error: a value that's neither a string nor `auto' signals user-error."
(let ((cj/print-spooler-command 'something-weird)
(cj/print--spooler-cache nil))
(should-error (cj/print--resolve-spooler) :type 'user-error)))
;;; ---------- cj/copy-buffer-name ----------
(ert-deftest test-cbf-copy-buffer-name-kills-buffer-name ()
"Normal: the current buffer's name lands on the kill ring with a message."
(let ((killed nil)
(msg nil))
(with-temp-buffer
(rename-buffer "*test-cbf-copy-name*" t)
(cl-letf (((symbol-function 'kill-new)
(lambda (s) (setq killed s)))
((symbol-function 'message)
(lambda (fmt &rest args)
(setq msg (apply #'format fmt args)))))
(cj/copy-buffer-name)))
(should (string-prefix-p "*test-cbf-copy-name*" killed))
(should (string-match-p "Copied" msg))))
;;; ---------- cj/view-buffer-in-eww ----------
(ert-deftest test-cbf-view-buffer-in-eww-normal-hands-off-to-eww ()
"Normal: with a file-visiting buffer, `eww-open-file' is called with the file."
(let ((opened nil))
(with-temp-buffer
(setq buffer-file-name "/tmp/sample.html")
(cl-letf (((symbol-function 'eww-open-file)
(lambda (f) (setq opened f))))
(cj/view-buffer-in-eww))
(setq buffer-file-name nil))
(should (equal opened "/tmp/sample.html"))))
(ert-deftest test-cbf-view-buffer-in-eww-error-not-visiting-file ()
"Error: a buffer not visiting a file signals user-error; eww isn't called."
(with-temp-buffer
(let ((called nil))
(cl-letf (((symbol-function 'eww-open-file)
(lambda (_) (setq called t))))
(should-error (cj/view-buffer-in-eww) :type 'user-error))
(should-not called))))
;;; ---------- cj/--email-handle-is-type-p ----------
(ert-deftest test-cbf-email-handle-is-type-p-matches-prefix ()
"Normal: `text/html' matches a content-type with charset suffix."
(let ((handle '("buffer" ("text/html" "charset" . "utf-8"))))
(cl-letf (((symbol-function 'mm-handle-type)
(lambda (_) '("text/html" "charset" . "utf-8"))))
(should (cj/--email-handle-is-type-p handle "text/html")))))
(ert-deftest test-cbf-email-handle-is-type-p-no-match ()
"Boundary: a plain-text handle doesn't match a text/html request."
(let ((handle '("buffer" ("text/plain"))))
(cl-letf (((symbol-function 'mm-handle-type)
(lambda (_) '("text/plain"))))
(should-not (cj/--email-handle-is-type-p handle "text/html")))))
(ert-deftest test-cbf-email-handle-is-type-p-nil-handle-returns-nil ()
"Error: a nil handle returns nil instead of signaling."
(should-not (cj/--email-handle-is-type-p nil "text/html")))
;;; ---------- cj/--diff-with-regular-diff ----------
(ert-deftest test-cbf-diff-with-regular-diff-renders-buffer-content ()
"Normal: regular diff helper writes a header and diff output into BUFFER."
(let ((called-with nil))
(let ((buf (generate-new-buffer "*test-cbf-diff*")))
(unwind-protect
(progn
(cl-letf (((symbol-function 'call-process)
(lambda (prog _infile _buf _disp &rest args)
(setq called-with (cons prog args))
(with-current-buffer (current-buffer)
(insert "@@ -1 +1 @@\n-old\n+new\n"))
0))
((symbol-function 'diff-mode) #'ignore))
(cj/--diff-with-regular-diff "/tmp/a.txt" "/tmp/b.txt" buf))
(with-current-buffer buf
(should (string-match-p "Unified diff" (buffer-string)))
(should (string-match-p "@@" (buffer-string)))))
(when (buffer-live-p buf) (kill-buffer buf))))
(should (equal (car called-with) "diff"))))
;;; ---------- cj/diff-buffer-with-file ----------
(ert-deftest test-cbf-diff-buffer-with-file-error-not-visiting-file ()
"Error: a buffer not visiting a file signals user-error."
(with-temp-buffer
(should-error (cj/diff-buffer-with-file) :type 'user-error)))
(ert-deftest test-cbf-diff-buffer-with-file-no-changes-messages ()
"Normal: when the saved file and buffer match, diff returns 0 -> messages \"No differences\"."
(let ((tmp (make-temp-file "test-cbf-diff-")))
(with-temp-file tmp (insert "content"))
(unwind-protect
(let ((msg nil))
(with-temp-buffer
(insert "content")
(setq buffer-file-name tmp)
(cl-letf (((symbol-function 'call-process)
(lambda (&rest _) 0)) ; pretend "diff -q" exits 0
((symbol-function 'message)
(lambda (fmt &rest args)
(setq msg (apply #'format fmt args)))))
(cj/diff-buffer-with-file))
(setq buffer-file-name nil))
(should (string-match-p "No differences" msg)))
(delete-file tmp))))
(provide 'test-custom-buffer-file-print-diff-eww)
;;; test-custom-buffer-file-print-diff-eww.el ends here
|
