New file to test bindat functions

test/lisp/emacs-lisp/bindat-tests.el

@@ -0,0 +1,70 @@
+;;; bindat-tests.el --- tests for bindat.el  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2019 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/>.
+
+;;; Code:
+
+(require 'ert)
+(require 'bindat)
+(require 'cl-lib)
+
+(defvar header-bindat-spec
+  '((dest-ip ip)
+    (src-ip ip)
+    (dest-port u16)
+    (src-port u16)))
+
+(defvar data-bindat-spec
+  '((type u8)
+    (opcode u8)
+    (length u16r) ;; little endian order
+    (id strz 8)
+    (data vec (length))
+    (align 4)))
+
+(ert-deftest bindat-test-pack ()
+  (let* ((packet-bindat-spec
+          '((header struct header-bindat-spec)
+            (items u8)
+            (fill 3)
+            (item repeat (items)
+                  (struct data-bindat-spec))))
+         (struct
+          '((header
+             (dest-ip . [192 168 1 100])
+             (src-ip . [192 168 1 101])
+             (dest-port . 284)
+             (src-port . 5408))
+            (items . 2)
+            (item ((data . [1 2 3 4 5])
+                   (id . "ABCDEF")
+                   (length . 5)
+                   (opcode . 3)
+                   (type . 2))
+                  ((data . [6 7 8 9 10 11 12])
+                   (id . "BCDEFG")
+                   (length . 7)
+                   (opcode . 4)
+                   (type . 1))))))
+    (should (equal
+             (cl-map 'vector #'identity (bindat-pack packet-bindat-spec struct))
+             [ 192 168 1 100 192 168 1 101 01 28 21 32 2 0 0 0
+                   2 3 5 0 ?A ?B ?C ?D ?E ?F 0 0 1 2 3 4 5 0 0 0
+                   1 4 7 0 ?B ?C ?D ?E ?F ?G 0 0 6 7 8 9 10 11 12 0 ]))))
+
+;;; bindat-tests.el ends here