tests: also cover endianess conversion helpers

[libsigrok.git] / tests / conv.c

diff --git a/tests/conv.c b/tests/conv.c
new file mode 100644 (file)
index 0000000..f3e47a1
--- /dev/null
+++ b/tests/conv.c
@@ -0,0 +1,78 @@
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2020 Gerhard Sittig <gerhard.sittig@gmx.net>
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <check.h>
+#include <libsigrok/libsigrok.h>
+#include <stdlib.h>
+#include <string.h>
+#include "lib.h"
+#include "libsigrok-internal.h"
+
+static const uint8_t buff1234[] = {
+       0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88,
+};
+
+START_TEST(test_endian_macro)
+{
+       const uint8_t *p8;
+       const uint16_t *p16;
+       const uint32_t *p32;
+
+       p8 = (const void *)&buff1234[0];
+       fail_unless(R8(&p8[0]) == 0x11);
+       fail_unless(R8(&p8[1]) == 0x22);
+       fail_unless(R8(&p8[2]) == 0x33);
+       fail_unless(R8(&p8[3]) == 0x44);
+
+       p16 = (const void *)&buff1234[0];
+       fail_unless(RB16(&p16[0]) == 0x1122);
+       fail_unless(RB16(&p16[1]) == 0x3344);
+
+       p16 = (const void *)&buff1234[0];
+       fail_unless(RL16(&p16[0]) == 0x2211);
+       fail_unless(RL16(&p16[1]) == 0x4433);
+
+       p32 = (const void *)&buff1234[0];
+       fail_unless(RB32(&p32[0]) == 0x11223344);
+       fail_unless(RB32(&p32[1]) == 0x55667788);
+
+       p32 = (const void *)&buff1234[0];
+       fail_unless(RL32(&p32[0]) == 0x44332211);
+       fail_unless(RL32(&p32[1]) == 0x88776655);
+
+       p16 = (const void *)&buff1234[0];
+       fail_unless(RB16(p16++) == 0x1122);
+       fail_unless(RB16(p16++) == 0x3344);
+}
+END_TEST
+
+Suite *suite_conv(void)
+{
+       Suite *s;
+       TCase *tc;
+
+       s = suite_create("conv");
+
+       tc = tcase_create("endian");
+       tcase_add_test(tc, test_endian_macro);
+       suite_add_tcase(s, tc);
+
+       return s;
+}