123 lines
4.3 KiB
EmacsLisp
123 lines
4.3 KiB
EmacsLisp
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;;; erlang-test.el -*- lexical-binding: t; coding: utf-8-unix -*-
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;;; Unit tests for erlang.el.
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;; Author: Johan Claesson
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;; Created: 2016-05-07
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;; Keywords: erlang, languages
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;; %CopyrightBegin%
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;;
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;; Copyright Ericsson AB 2016. All Rights Reserved.
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;;
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;; Licensed under the Apache License, Version 2.0 (the "License");
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;; you may not use this file except in compliance with the License.
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;; You may obtain a copy of the License at
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;;
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;; http://www.apache.org/licenses/LICENSE-2.0
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;;
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;; Unless required by applicable law or agreed to in writing, software
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;; distributed under the License is distributed on an "AS IS" BASIS,
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;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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;; See the License for the specific language governing permissions and
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;; limitations under the License.
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;;
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;; %CopyrightEnd%
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;;; Commentary:
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;; This library require GNU Emacs 25 or later.
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;;; Code:
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(require 'ert)
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(require 'cl-lib)
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(require 'erlang)
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(defvar erlang-test-code
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'((nil . "-module(erlang_test).")
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(nil . "-import(lists, [map/2]).")
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(nil . "-compile(export_all).")
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("SYMBOL" . "-define(SYMBOL, value).")
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("MACRO" . "-define(MACRO(X), X + X).")
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("struct" . "-record(struct, {until,maps,are,everywhere}).")
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("function". "function() -> #struct{}."))
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"Alist of erlang test code.
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Each entry have the format (TAGNAME . ERLANG_CODE). If TAGNAME
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is nil there is no definitions in the ERLANG_CODE. The
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ERLANG_CODE is a single line of erlang code. These lines will be
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concatenated to form an erlang file to test on.")
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(ert-deftest erlang-test-tags ()
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(let* ((dir (make-temp-file "erlang-test" t))
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(erlang-file (expand-file-name "erlang_test.erl" dir))
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(tags-file (expand-file-name "TAGS" dir))
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tags-file-name tags-table-list erlang-buffer)
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(unwind-protect
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(progn
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(erlang-test-create-erlang-file erlang-file)
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(erlang-test-compile-tags erlang-file tags-file)
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(setq erlang-buffer (find-file-noselect erlang-file))
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(with-current-buffer erlang-buffer
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(setq-local tags-file-name tags-file))
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;; Setting global tags-file-name is a workaround for
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;; GNU Emacs bug#23164.
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(setq tags-file-name tags-file)
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(erlang-test-completion-table)
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(erlang-test-xref-find-definitions erlang-file erlang-buffer))
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(when (buffer-live-p erlang-buffer)
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(kill-buffer erlang-buffer))
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(let ((tags-buffer (find-buffer-visiting tags-file)))
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(when (buffer-live-p tags-buffer)
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(kill-buffer tags-buffer)))
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(when (file-exists-p dir)
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(delete-directory dir t)))))
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(defun erlang-test-create-erlang-file (erlang-file)
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(with-temp-file erlang-file
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(cl-loop for (_ . code) in erlang-test-code
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do (insert code "\n"))))
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(defun erlang-test-compile-tags (erlang-file tags-file)
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(should (zerop (call-process "etags" nil nil nil
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"-o" tags-file
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erlang-file))))
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(defun erlang-test-completion-table ()
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(let ((erlang-replace-etags-tags-completion-table t))
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(setq tags-completion-table nil)
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(tags-completion-table))
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(should (equal (sort tags-completion-table #'string-lessp)
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(sort (erlang-expected-completion-table) #'string-lessp))))
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(defun erlang-expected-completion-table ()
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(append (cl-loop for (symbol . _) in erlang-test-code
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when (stringp symbol)
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append (list symbol (concat "erlang_test:" symbol)))
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(list "erlang_test:" "erlang_test:module_info")))
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(defun erlang-test-xref-find-definitions (erlang-file erlang-buffer)
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(cl-loop for (tagname . code) in erlang-test-code
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for line = 1 then (1+ line)
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do (when tagname
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(switch-to-buffer erlang-buffer)
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(xref-find-definitions tagname)
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(erlang-test-verify-pos erlang-file line)
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(xref-find-definitions (concat "erlang_test:" tagname))
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(erlang-test-verify-pos erlang-file line)))
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(xref-find-definitions "erlang_test:")
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(erlang-test-verify-pos erlang-file 1))
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(defun erlang-test-verify-pos (expected-file expected-line)
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(should (string-equal (file-truename expected-file)
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(file-truename (buffer-file-name))))
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(should (eq expected-line (line-number-at-pos)))
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(should (= (point-at-bol) (point))))
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(provide 'erlang-test)
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;;; erlang-test.el ends here
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