Re: ERT indentation testing

[Ted Zlatanov]

On Wed, 01 Jun 2011 16:30:56 -0500 Ted Zlatanov <address@hidden> wrote: 

TZ> See the attached patch to make the indentation testing use ERT and
TZ> operate on any files with a "." in the name except test-indent.el.

Second patch:

TZ> The test fails on modula2.mod and I'm not sure why.  I am setting
TZ> `enable-local-variables'.  Is it because I'm going line by line?  Or
TZ> something with the line boundaries?

Uses `find-file' to process the local variables correctly.

TZ> Should the test stop when any file fails or keep going?

One test is created per file now, and any one file won't block the other tests.

Ted

=== modified file 'test/indent/Makefile'
--- test/indent/Makefile        2010-08-30 20:34:52 +0000
+++ test/indent/Makefile        2011-06-02 18:07:15 +0000
@@ -13,3 +13,6 @@
            --eval '(indent-region (point-min) (point-max) nil)' \
            --eval '(write-region (point-min) (point-max) "$<.new")'
        diff -u -B $< $<.new
+
+test-indent:
+       $(EMACS) --batch -l ert -l test-indent.el -f 
ert-run-tests-batch-and-exit

=== added file 'test/indent/test-indent.el'
--- test/indent/test-indent.el  1970-01-01 00:00:00 +0000
+++ test/indent/test-indent.el  2011-06-02 18:39:23 +0000
@@ -0,0 +1,67 @@
+;;; test-indent.el --- run indentation tests
+
+;; Copyright (C) 2011  Free Software Foundation, Inc.
+
+;; Author: Ted Zlatanov <address@hidden>
+
+;; 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 <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; The purpose of this module is to verify that all the files in te
+;; current directory are indented correctly.
+
+;;; Code:
+
+(eval-when-compile
+  (require 'ert)
+  (require 'cl)
+
+  (defsubst test-indent-trim (string)
+    "Lose leading and trailing whitespace.  Copied from BBDB."
+    (if (string-match "\\`[ \t\n]+" string)
+        (setq string (substring string (match-end 0))))
+    (if (string-match "[ \t\n]+\\'" string)
+        (setq string (substring string 0 (match-beginning 0))))
+    string)
+
+  (let ((files (delete "test-indent.el"
+                       (directory-files "." nil "\\`[^.]+\\..+[a-zA-Z]\\'")))
+        f)
+    (loop for i from 1 to (length files)
+          for f = (nth (1- i) files)
+          do (eval `(ert-deftest ,(intern (format "test-indent-%d-%s" i f)) ()
+                      (let ((lnum 0))
+                        (message "Testing indentation of %s" ,f)
+                        (find-file ,f)
+                        (goto-char (point-min))
+                        (while (not (eobp))
+                          (incf lnum)
+                          (let* ((a (line-beginning-position))
+                                 (b (line-end-position))
+                                 (line (buffer-substring a b)))
+                            (message "Testing indentation of %s:%05d: %s"
+                                     ,f lnum line)
+                            (unless (or (string-match "KNOWN INDENT BUG" line)
+                                        (equal (test-indent-trim line) ""))
+                              (indent-region a b nil)
+                              (should (equal line (buffer-substring
+                                                   (line-beginning-position)
+                                                   (line-end-position)))))
+                            (forward-line)))))))))
+
+(provide 'test-indent)
+;;; test-indent.el ends here