[src/trunk]: src/tests/lib/libc/sys Add a bitops test

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ecde0dbbeadd
branches:  trunk
changeset: 783012:ecde0dbbeadd
user:      christos <christos%NetBSD.org@localhost>
date:      Sat Dec 01 16:27:27 2012 +0000

description:
Add a bitops test

diffstat:

 tests/lib/libc/sys/Makefile   |   3 +-
 tests/lib/libc/sys/t_bitops.c |  78 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 80 insertions(+), 1 deletions(-)

diffs (99 lines):

diff -r d06e6845fb5c -r ecde0dbbeadd tests/lib/libc/sys/Makefile
--- a/tests/lib/libc/sys/Makefile       Sat Dec 01 15:30:16 2012 +0000
+++ b/tests/lib/libc/sys/Makefile       Sat Dec 01 16:27:27 2012 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.28 2012/09/12 02:00:55 manu Exp $
+# $NetBSD: Makefile,v 1.29 2012/12/01 16:27:27 christos Exp $
 
 MKMAN= no
 
@@ -9,6 +9,7 @@
 TESTSDIR=              ${TESTSBASE}/lib/libc/sys
 
 TESTS_C+=              t_access
+TESTS_C+=              t_bitops
 TESTS_C+=              t_chroot
 TESTS_C+=              t_clock_gettime
 TESTS_C+=              t_clone
diff -r d06e6845fb5c -r ecde0dbbeadd tests/lib/libc/sys/t_bitops.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/lib/libc/sys/t_bitops.c     Sat Dec 01 16:27:27 2012 +0000
@@ -0,0 +1,78 @@
+/*     $NetBSD: t_bitops.c,v 1.1 2012/12/01 16:27:27 christos Exp $    */
+
+/*-
+ * Copyright (c) 2012 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: t_bitops.c,v 1.1 2012/12/01 16:27:27 christos Exp $");
+
+#include <stdlib.h>
+#include <sys/bitops.h>
+#include <atf-c.h>
+
+ATF_TC(bitmap_basic);
+
+ATF_TC_HEAD(bitmap_basic, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "A basic test of __BITMAP_*");
+}
+     
+ATF_TC_BODY(bitmap_basic, tc)
+{
+       uint32_t bm[__BITMAP_SIZE(uint32_t, 65536)];
+       __BITMAP_ZERO(bm);
+
+       ATF_REQUIRE(__BITMAP_SIZE(uint32_t, 65536) == 2048);
+
+       ATF_REQUIRE(__BITMAP_SHIFT(uint32_t) == 5);
+
+       ATF_REQUIRE(__BITMAP_MASK(uint32_t) == 31);
+
+       for (size_t i = 0; i < 65536; i += 2)
+               __BITMAP_SET(i, bm);
+
+       for (size_t i = 0; i < 2048; i++)
+               ATF_REQUIRE(bm[i] == 0x55555555);
+
+       for (size_t i = 0; i < 65536; i++)
+               if (i & 1)
+                       ATF_REQUIRE(!__BITMAP_ISSET(i, bm));
+               else {
+                       ATF_REQUIRE(__BITMAP_ISSET(i, bm));
+                       __BITMAP_CLR(i, bm);
+               }
+
+       for (size_t i = 0; i < 65536; i += 2)
+               ATF_REQUIRE(!__BITMAP_ISSET(i, bm));
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+        ATF_TP_ADD_TC(tp, bitmap_basic);
+       return atf_no_error();
+}