Use lexical-binding in autoinsert.el and add tests

* lisp/autoinsert.el: Use lexical-binding.
Remove redundant :group args.
(auto-insert): Simplify.

* test/lisp/autoinsert-tests.el: New file with tests for
autoinsert.el.

1 files changed, 104 insertions, 0 deletions

diff --git a/test/lisp/autoinsert-tests.el b/test/lisp/autoinsert-tests.el
new file mode 100644
index 00000000000..a7b0547633b
--- /dev/null
+++ b/test/lisp/autoinsert-tests.el
@@ -0,0 +1,104 @@
+;;; autoinsert-tests.el --- Tests for autoinsert.el  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2019 Free Software Foundation, Inc.
+
+;; Author: Simen Heggestøyl <simenheg@gmail.com>
+;; Keywords:
+
+;; 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:
+
+;;
+
+;;; Code:
+
+(require 'autoinsert)
+(require 'ert)
+
+(ert-deftest autoinsert-tests-auto-insert-skeleton ()
+  (let ((auto-insert-alist '((text-mode nil "f" _ "oo")))
+        (auto-insert-query nil))
+    (with-temp-buffer
+      (text-mode)
+      (auto-insert)
+      (should (equal (buffer-string) "foo"))
+      (should (equal (point) (+ (point-min) 1))))))
+
+(ert-deftest autoinsert-tests-auto-insert-file ()
+  (let ((temp-file (make-temp-file "autoinsert-tests" nil nil "foo")))
+    (unwind-protect
+        (let ((auto-insert-alist `((text-mode . ,temp-file)))
+              (auto-insert-query nil))
+          (with-temp-buffer
+            (text-mode)
+            (auto-insert)
+            (should (equal (buffer-string) "foo"))))
+      (when (file-exists-p temp-file)
+        (delete-file temp-file)))))
+
+(ert-deftest autoinsert-tests-auto-insert-function ()
+  (let ((auto-insert-alist '((text-mode . (lambda () (insert "foo")))))
+        (auto-insert-query nil))
+    (with-temp-buffer
+      (text-mode)
+      (auto-insert)
+      (should (equal (buffer-string) "foo")))))
+
+(ert-deftest autoinsert-tests-auto-insert-vector ()
+  (let ((auto-insert-alist '((text-mode . [(nil "f" _ "bar")
+                                           (lambda () (insert "oo"))])))
+        (auto-insert-query nil))
+    (with-temp-buffer
+      (text-mode)
+      (auto-insert)
+      (should (equal (buffer-string) "foobar")))))
+
+(ert-deftest autoinsert-tests-auto-insert-regexp-match ()
+  (let ((auto-insert-alist '(("foobar" nil "1st")
+                             ("fo+bar" nil "2nd")
+                             ("fo*bar" nil "3rd")))
+        (auto-insert-query nil))
+    (with-temp-buffer
+      (setq-local buffer-file-name "fooobar")
+      (auto-insert)
+      (should (equal (buffer-string) "2nd")))))
+
+(ert-deftest autoinsert-tests-define-auto-insert-before ()
+  (let ((auto-insert-alist
+         (list (cons 'text-mode '(lambda () (insert "foo")))))
+        (auto-insert-query nil))
+    (define-auto-insert 'text-mode
+      '(lambda () (insert "bar")))
+    (with-temp-buffer
+      (text-mode)
+      (auto-insert)
+      (should (equal (buffer-string) "barfoo")))))
+
+(ert-deftest autoinsert-tests-define-auto-insert-after ()
+  (let ((auto-insert-alist
+         (list (cons 'text-mode '(lambda () (insert "foo")))))
+        (auto-insert-query nil))
+    (define-auto-insert 'text-mode
+      '(lambda () (insert "bar"))
+      t)
+    (with-temp-buffer
+      (text-mode)
+      (auto-insert)
+      (should (equal (buffer-string) "foobar")))))
+
+(provide 'autoinsert-tests)
+;;; autoinsert-tests.el ends here