tests: add swabN() regression test

Signed-off-by: Karel Zak <kzak@redhat.com>

6 files changed, 167 insertions, 1 deletions

diff --git a/tests/commands.sh.in b/tests/commands.sh.in
index 2c0535bf..bc4dbbde 100644
--- a/tests/commands.sh.in
+++ b/tests/commands.sh.in
@@ -9,6 +9,7 @@ TS_TESTUSER=${TS_TESTUSER:-"test"}
 # helpers
 TS_HELPER_SYSINFO="$TS_TOPDIR/helpers/test_sysinfo"
 TS_HELPER_PATHS="$TS_TOPDIR/helpers/test_pathnames"
+TS_HELPER_BYTESWAP="$TS_TOPDIR/helpers/test_byteswap"
 
 # external commands
 TS_ECMD_BLKID="@BLKID@"
diff --git a/tests/expected/ts-bitops-swapbytes b/tests/expected/ts-bitops-swapbytes
new file mode 100644
index 00000000..b9468a75
--- /dev/null
+++ b/tests/expected/ts-bitops-swapbytes
@@ -0,0 +1,21 @@
+Testing swab16
+swab16(0x0001) = 0x0100
+swab16(0x1234) = 0x3412
+swab16(0xff00) = 0x00ff
+swab16(0x4000) = 0x0040
+swab16(0xfeff) = 0xfffe
+Testing swab32
+swab32(0x00000001) = 0x01000000
+swab32(0x80000000) = 0x00000080
+swab32(0x12345678) = 0x78563412
+swab32(0xffff0000) = 0x0000ffff
+swab32(0x00ff0000) = 0x0000ff00
+swab32(0xff000000) = 0x000000ff
+Testing swab64
+swab64(0x0000000000000001) = 0x0100000000000000
+swab64(0x8000000000000000) = 0x0000000000000080
+swab64(0x1234567812345678) = 0x7856341278563412
+swab64(0xffffffff00000000) = 0x00000000ffffffff
+swab64(0x00ff000000000000) = 0x000000000000ff00
+swab64(0xff00000000000000) = 0x00000000000000ff
+No errors found in the byteswap implementation
diff --git a/tests/helpers/.gitignore b/tests/helpers/.gitignore
index de086d53..a2ca1fc0 100644
--- a/tests/helpers/.gitignore
+++ b/tests/helpers/.gitignore
@@ -1,2 +1,3 @@
 test_pathnames
 test_sysinfo
+test_byteswap
diff --git a/tests/helpers/Makefile.am b/tests/helpers/Makefile.am
index 24dcd2af..12792329 100644
--- a/tests/helpers/Makefile.am
+++ b/tests/helpers/Makefile.am
@@ -1,4 +1,4 @@
 include $(top_srcdir)/config/include-Makefile.am
 
-noinst_PROGRAMS = test_sysinfo test_pathnames
+noinst_PROGRAMS = test_sysinfo test_pathnames test_byteswap
 
diff --git a/tests/helpers/test_byteswap.c b/tests/helpers/test_byteswap.c
new file mode 100644
index 00000000..3932d5a1
--- /dev/null
+++ b/tests/helpers/test_byteswap.c
@@ -0,0 +1,114 @@
+/*
+ * This testing program makes sure the byteswap functions work
+ *
+ * Copyright (C) 2000 by Theodore Ts'o.
+ * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
+ *
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ */
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <time.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <errno.h>
+#include <inttypes.h>
+
+#include "bitops.h"
+
+uint16_t ary16[] = {
+	0x0001, 0x0100,
+	0x1234, 0x3412,
+	0xff00, 0x00ff,
+	0x4000, 0x0040,
+	0xfeff, 0xfffe,
+	0x0000, 0x0000
+	};
+
+uint32_t ary32[] = {
+	0x00000001, 0x01000000,
+	0x80000000, 0x00000080,
+	0x12345678, 0x78563412,
+	0xffff0000, 0x0000ffff,
+	0x00ff0000, 0x0000ff00,
+	0xff000000, 0x000000ff,
+	0x00000000, 0x00000000
+	};
+
+uint64_t ary64[] = {
+	0x0000000000000001, 0x0100000000000000,
+	0x8000000000000000, 0x0000000000000080,
+	0x1234567812345678, 0x7856341278563412,
+	0xffffffff00000000, 0x00000000ffffffff,
+	0x00ff000000000000, 0x000000000000ff00,
+	0xff00000000000000, 0x00000000000000ff,
+	0x0000000000000000, 0x0000000000000000
+	};
+
+int main(int argc, char **argv)
+{
+	int	i;
+	int	errors = 0;
+
+	printf("Testing swab16\n");
+	i=0;
+	do {
+		printf("swab16(0x%04"PRIx16") = 0x%04"PRIx16"\n",
+				ary16[i], swab16(ary16[i]));
+		if (swab16(ary16[i]) != ary16[i+1]) {
+			printf("Error!!!   %04"PRIx16" != %04"PRIx16"\n",
+			       swab16(ary16[i]), ary16[i+1]);
+			errors++;
+		}
+		if (swab16(ary16[i+1]) != ary16[i]) {
+			printf("Error!!!   %04"PRIx16" != %04"PRIx16"\n",
+			       swab16(ary16[i+1]), ary16[i]);
+			errors++;
+		}
+		i += 2;
+	} while (ary16[i] != 0);
+
+	printf("Testing swab32\n");
+	i = 0;
+	do {
+		printf("swab32(0x%08"PRIx32") = 0x%08"PRIx32"\n",
+				ary32[i], swab32(ary32[i]));
+		if (swab32(ary32[i]) != ary32[i+1]) {
+			printf("Error!!!   %04"PRIx32" != %04"PRIx32"\n",
+				swab32(ary32[i]), ary32[i+1]);
+			errors++;
+		}
+		if (swab32(ary32[i+1]) != ary32[i]) {
+			printf("Error!!!   %04"PRIx32" != %04"PRIx32"\n",
+			       swab32(ary32[i+1]), ary32[i]);
+			errors++;
+		}
+		i += 2;
+	} while (ary32[i] != 0);
+
+	printf("Testing swab64\n");
+	i = 0;
+	do {
+		printf("swab64(0x%016"PRIx64") = 0x%016"PRIx64"\n",
+				ary64[i], swab64(ary64[i]));
+		if (swab64(ary64[i]) != ary64[i+1]) {
+			printf("Error!!!   %016"PRIx64" != %016"PRIx64"\n",
+				swab64(ary64[i]), ary64[i+1]);
+			errors++;
+		}
+		if (swab64(ary64[i+1]) != ary64[i]) {
+			printf("Error!!!   %016"PRIx64" != %016"PRIx64"\n",
+			       swab64(ary64[i+1]), ary64[i]);
+			errors++;
+		}
+		i += 2;
+	} while (ary64[i] != 0);
+
+	if (!errors)
+		printf("No errors found in the byteswap implementation\n");
+
+	return errors;
+}
diff --git a/tests/ts-bitops-swapbytes b/tests/ts-bitops-swapbytes
new file mode 100755
index 00000000..78c330da
--- /dev/null
+++ b/tests/ts-bitops-swapbytes
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2007 Karel Zak <kzak@redhat.com>
+#
+# This file is part of util-linux-ng.
+#
+# This file 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 file 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.
+#
+. ./commands.sh
+. ./functions.sh
+
+TS_COMPONENT="bitops"
+TS_DESC="swapbytes"
+
+ts_init "$*"
+
+$TS_HELPER_BYTESWAP >> $TS_OUTPUT
+
+ts_finalize
+