master 33f0036 2/2: Use lexical-binding in executable.el and add tests

[Stefan Kangas]

branch: master
commit 33f00364cf86d90c37b958ee4676ea7f581fff99
Author: Stefan Kangas <stefan@marxist.se>
Commit: Stefan Kangas <stefan@marxist.se>

    Use lexical-binding in executable.el and add tests
    
    * lisp/progmodes/executable.el: Use lexical-binding.
    * test/lisp/progmodes/executable-tests.el: New file.
---
 lisp/progmodes/executable.el            |  2 +-
 test/lisp/progmodes/executable-tests.el | 54 +++++++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/lisp/progmodes/executable.el b/lisp/progmodes/executable.el
index 85e9b4b..0d8b09c 100644
--- a/lisp/progmodes/executable.el
+++ b/lisp/progmodes/executable.el
@@ -1,4 +1,4 @@
-;;; executable.el --- base functionality for executable interpreter scripts
+;;; executable.el --- base functionality for executable interpreter scripts  
-*- lexical-binding: t -*-
 
 ;; Copyright (C) 1994-1996, 2000-2021 Free Software Foundation, Inc.
 
diff --git a/test/lisp/progmodes/executable-tests.el 
b/test/lisp/progmodes/executable-tests.el
new file mode 100644
index 0000000..e353191
--- /dev/null
+++ b/test/lisp/progmodes/executable-tests.el
@@ -0,0 +1,54 @@
+;;; executable-tests.el --- Tests for executable.el  -*- lexical-binding:t -*-
+
+;; Copyright (C) 2021 Free Software Foundation, Inc.
+
+;; 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 <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; This file is part of ERT, the Emacs Lisp Regression Testing tool.
+;; See ert.el or the texinfo manual for more details.
+
+;;; Code:
+
+(require 'ert)
+(require 'executable)
+
+(ert-deftest executable-tests-set-magic ()
+  (with-temp-buffer
+    (insert "#!/foo/bar")
+    (executable-set-magic "/bin/bash" nil t t)
+    (should (equal (buffer-string) "#!/bin/bash"))))
+
+(ert-deftest executable-tests-set-magic/with-argument ()
+  (with-temp-buffer
+    (insert "#!/foo/bar")
+    (executable-set-magic "/bin/bash" "--norc" t t)
+    (should (equal (buffer-string) "#!/bin/bash --norc"))))
+
+(ert-deftest executable-tests-set-magic/executable-insert-nil ()
+  (let ((executable-insert nil))
+    (with-temp-buffer
+      (insert "#!/foo/bar")
+      (executable-set-magic "/bin/bash" nil t nil)
+      (should (equal (buffer-string) "#!/foo/bar"))))
+  (let ((executable-insert nil))
+    (with-temp-buffer
+      (insert "#!/foo/bar")
+      (executable-set-magic "/bin/bash" nil t t)
+      (should (equal (buffer-string) "#!/bin/bash")))))
+
+;;; executable-tests.el ends here