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
|
;;; 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. 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.
;;; Code:
(require 'ert)
(require 'cl-lib)
(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))
tags-file-name tags-table-list erlang-buffer)
(unwind-protect
(progn
(erlang-test-create-erlang-file erlang-file)
(erlang-test-compile-tags erlang-file tags-file)
(setq erlang-buffer (find-file-noselect erlang-file))
(with-current-buffer erlang-buffer
(setq-local tags-file-name tags-file))
;; PENDING - setting global tags-file-name is a workaround
;; for GNU Emacs bug23164.
(setq tags-file-name tags-file)
(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)))))
(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-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)
(xref-find-definitions tagname)
(erlang-test-verify-pos erlang-file line)
(xref-find-definitions (concat "erlang_test:" tagname))
(erlang-test-verify-pos erlang-file line)))
(xref-find-definitions "erlang_test:")
(erlang-test-verify-pos erlang-file 1))
(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))))
(provide 'erlang-test)
;;; erlang-test.el ends here
|
