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
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
|
;;; erlang-test.el -*- lexical-binding: t; coding: utf-8-unix -*-
;;; Unit tests for erlang.el.
;; Author: Johan Claesson
;; Created: 2016-05-07
;; Keywords: erlang, languages
;; %CopyrightBegin%
;;
;; Copyright Ericsson AB 2016-2021. All Rights Reserved.
;;
;; Licensed under the Apache License, Version 2.0 (the "License");
;; you may not use this file except in compliance with the License.
;; You may obtain a copy of the License at
;;
;; http://www.apache.org/licenses/LICENSE-2.0
;;
;; Unless required by applicable law or agreed to in writing, software
;; distributed under the License is distributed on an "AS IS" BASIS,
;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;; See the License for the specific language governing permissions and
;; limitations under the License.
;;
;; %CopyrightEnd%
;;; Commentary:
;; This library require GNU Emacs 25 or later.
;;
;; There are three ways to run the erlang emacs unit tests.
;;
;; 1. Within a running emacs process. Load this file. Then to run
;; all defined test cases:
;;
;; M-x ert RET t RET
;;
;; To run only the erlang test cases:
;;
;; M-x ert RET "^erlang" RET
;;
;;
;; 2. In a new stand-alone emacs process. This process exits
;; when it executed the tests. For example:
;;
;; emacs -Q -batch -L . -l erlang.el -l erlang-test.el \
;; -f ert-run-tests-batch-and-exit
;;
;; The -L option adds a directory to the load-path. It should be the
;; directory containing erlang.el and erlang-test.el.
;;
;; 3. Run the emacs_SUITE. The testcases tests_interpreted/1 and
;; tests_compiled/1 in this suite are using the second method. One
;; way to run this suite is with the ct_run tool, for example like the
;; following when standing at the OTP repo top directory:
;;
;; ct_run -suite lib/tools/test/emacs_SUITE
;;
;; Note that this creates a lot of html log files in the current
;; directory.
;;; Code:
(require 'ert)
(require 'erlang)
(defvar erlang-test-code
'((nil . "-module(erlang_test).")
(nil . "-import(lists, [map/2]).")
(nil . "-compile(export_all).")
("SYMBOL" . "-define(SYMBOL, value).")
("MACRO" . "-define(MACRO(X), X + X).")
("struct" . "-record(struct, {until,maps,are,everywhere}).")
("function" . "function() -> #struct{}."))
"Alist of erlang test code.
Each entry have the format (TAGNAME . ERLANG_CODE). If TAGNAME
is nil there is no definitions in the ERLANG_CODE. The
ERLANG_CODE is a single line of erlang code. These lines will be
concatenated to form an erlang file to test on.")
(ert-deftest erlang-test-tags ()
(let* ((dir (make-temp-file "erlang-test" t))
(erlang-file (expand-file-name "erlang_test.erl" dir))
(tags-file (expand-file-name "TAGS" dir))
(old-tags-file-name (default-value 'tags-file-name))
(old-tags-table-list (default-value 'tags-table-list))
tags-file-name
tags-table-list
tags-table-set-list
tags-add-tables
tags-completion-table
erlang-buffer
erlang-mode-hook
prog-mode-hook
erlang-shell-mode-hook)
(unwind-protect
(progn
(setq-default tags-file-name nil)
(setq-default tags-table-list nil)
(erlang-test-create-erlang-file erlang-file)
(erlang-test-compile-tags erlang-file tags-file)
(setq erlang-buffer (find-file-noselect erlang-file))
(if (< emacs-major-version 26)
(progn
(with-current-buffer erlang-buffer
(setq-local tags-file-name tags-file))
;; Setting global tags-file-name is a workaround for
;; GNU Emacs bug#23164.
(setq tags-file-name tags-file))
(visit-tags-table tags-file t))
(erlang-test-complete-at-point tags-file)
(erlang-test-completion-table)
(erlang-test-xref-find-definitions erlang-file erlang-buffer))
(when (buffer-live-p erlang-buffer)
(kill-buffer erlang-buffer))
(let ((tags-buffer (find-buffer-visiting tags-file)))
(when (buffer-live-p tags-buffer)
(kill-buffer tags-buffer)))
(when (file-exists-p dir)
(delete-directory dir t))
(setq-default tags-file-name old-tags-file-name)
(setq-default tags-table-list old-tags-table-list))))
(defun erlang-test-create-erlang-file (erlang-file)
(with-temp-file erlang-file
(cl-loop for (_ . code) in erlang-test-code
do (insert code "\n"))))
(defun erlang-test-compile-tags (erlang-file tags-file)
(should (zerop (call-process "etags" nil nil nil
"-o" tags-file
erlang-file))))
(defun erlang-test-completion-table ()
(let ((erlang-replace-etags-tags-completion-table t))
(setq tags-completion-table nil)
(tags-completion-table))
(should (equal (sort tags-completion-table #'string-lessp)
(sort (erlang-expected-completion-table) #'string-lessp))))
(defun erlang-expected-completion-table ()
(append (cl-loop for (symbol . _) in erlang-test-code
when (stringp symbol)
append (list symbol (concat "erlang_test:" symbol)))
(list "erlang_test:" "erlang_test:module_info")))
(defun erlang-test-xref-find-definitions (erlang-file erlang-buffer)
(cl-loop for (tagname . code) in erlang-test-code
for line = 1 then (1+ line)
do (when tagname
(switch-to-buffer erlang-buffer)
(erlang-test-xref-jump tagname erlang-file line)
(when (string-equal tagname "function")
(erlang-test-xref-jump (concat "erlang_test:" tagname)
erlang-file line))))
(erlang-test-xref-jump "erlang_test:" erlang-file 1))
(defun erlang-test-xref-jump (id expected-file expected-line)
(goto-char (point-max))
(insert "\n%% " id)
(save-buffer)
(if (fboundp 'xref-find-definitions)
(xref-find-definitions (erlang-id-to-string
(erlang-get-identifier-at-point)))
(error "xref-find-definitions not defined (too old emacs?)"))
(erlang-test-verify-pos expected-file expected-line))
(defun erlang-test-verify-pos (expected-file expected-line)
(should (string-equal (file-truename expected-file)
(file-truename (buffer-file-name))))
(should (eq expected-line (line-number-at-pos)))
(should (= (point-at-bol) (point))))
(defun erlang-test-complete-at-point (tags-file)
(with-temp-buffer
(erlang-mode)
(setq-local tags-file-name tags-file)
(insert "\nerlang_test:fun")
(erlang-complete-tag)
(should (looking-back "erlang_test:function" (point-at-bol)))
(insert "\nfun")
(erlang-complete-tag)
(should (looking-back "function" (point-at-bol)))
(insert "\nerlang_")
(erlang-complete-tag)
(should (looking-back "erlang_test:" (point-at-bol)))))
(ert-deftest erlang-test-compile-options ()
(erlang-test-format-opt t
"t")
(erlang-test-format-opt nil
"nil")
(erlang-test-format-opt (cons 1 2)
"{1, 2}")
(erlang-test-format-opt (list 1)
"[1]")
(erlang-test-format-opt (list 1 2)
"[1, 2]")
(erlang-test-format-opt (list 1 2 3)
"[1, 2, 3]")
(erlang-test-format-opt 'symbol
"symbol")
(erlang-test-format-opt "string"
"\"string\"")
(erlang-test-format-opt []
"{}")
(erlang-test-format-opt [1]
"{1}")
(erlang-test-format-opt [1 2]
"{1, 2}")
(erlang-test-format-opt [1 2 (3 [4 5 6] 7)]
"{1, 2, [3, {4, 5, 6}, 7]}"))
(defun erlang-test-format-opt (elisp &optional expected-erlang)
(let ((erlang (inferior-erlang-format-opt elisp)))
(message "%s -> %s" elisp erlang)
(when expected-erlang
(should (equal erlang expected-erlang)))
erlang))
(ert-deftest erlang-test-parse-id ()
(cl-loop for id-string in '("fun/10"
"qualified-function module:fun/10"
"record reko"
"macro _SYMBOL"
"macro MACRO/10"
"module modula"
"macro"
nil)
for id-list in '((nil nil "fun" 10)
(qualified-function "module" "fun" 10)
(record nil "reko" nil)
(macro nil "_SYMBOL" nil)
(macro nil "MACRO" 10)
(module nil "modula" nil)
(nil nil "macro" nil)
nil)
for id-list2 = (erlang-id-to-list id-string)
do (should (equal id-list id-list2))
for id-string2 = (erlang-id-to-string id-list)
do (should (equal id-string id-string2))
collect id-list2))
(provide 'erlang-test)
;;; erlang-test.el ends here
|
