Bit fields support

[guile-irrlicht.git] / tests / foreign-bit-fields.scm

diff --git a/tests/foreign-bit-fields.scm b/tests/foreign-bit-fields.scm
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+;;; guile-irrlicht --- FFI bindings for Irrlicht Engine
+;;; Copyright (C) 2019 Javier Sancho <jsf@jsancho.org>
+;;;
+;;; This file is part of guile-irrlicht.
+;;;
+;;; Guile-irrlicht is free software; you can redistribute it and/or modify
+;;; it under the terms of the GNU Lesser General Public License as
+;;; published by the Free Software Foundation; either version 3 of the
+;;; License, or (at your option) any later version.
+;;;
+;;; Guile-irrlicht 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 Lesser General Public
+;;; License along with guile-irrlicht.  If not, see
+;;; <http://www.gnu.org/licenses/>.
+
+
+(use-modules (system foreign)
+             (srfi srfi-64)
+             (irrlicht util foreign))
+
+(test-begin "foreign-bit-fields")
+
+;; Simple bit field group
+(define bfg (bit-field-group (int8 2) (int8 3) (int8 1)))
+(test-equal (get-bit-field-group-type bfg)
+            (list int8))
+(test-equal (make-c-bit-field-group bfg '(1 1 1))
+            '(#b100101))
+(test-equal (parse-c-bit-field-group '(#b110011) bfg)
+            '(3 4 1))
+
+;; Large bit field group
+(define bfg (bit-field-group (int8 2) (int8 3) (int8 5)))
+(test-equal (get-bit-field-group-type bfg)
+            (list int8 int8))
+(test-equal (make-c-bit-field-group bfg '(1 1 2))
+            '(#b101 #b10))
+(test-equal (parse-c-bit-field-group '(#b10011 #b10) bfg)
+            '(3 4 2))
+
+;; Structs with bit fields
+(define types (list int8 (bit-field-group (int8 2) (int8 3) (int8 2))))
+(test-equal (sizeof+ types) 2)
+(define values '(10 (2 4 3)))
+(test-equal (parse-c-struct+ (make-c-struct+ types values) types) values)
+
+(test-end "foreign-bit-fields")