tests: add tests for encode functions from lib/mbsalign.c

Signed-off-by: Vaclav Dolezal <vdolezal@redhat.com>

tests/commands.sh

@@ -38,6 +38,7 @@ TS_HELPER_SYSINFO="$top_builddir/test_sysinfo"
 TS_HELPER_TIOCSTI="$top_builddir/test_tiocsti"
 TS_HELPER_UUID_PARSER="$top_builddir/test_uuid_parser"
 TS_HELPER_UUID_NAMESPACE="$top_builddir/test_uuid_namespace"
+TS_HELPER_MBSENCODE="$top_builddir/test_mbsencode"
 
 # paths to commands
 TS_CMD_ADDPART=${TS_CMD_ADDPART:-"$top_builddir/addpart"}

tests/expected/misc/mbsencode-invalid-ascii

@@ -0,0 +1,10 @@
+9 foo	bar baz
+15 \\foo.local\bar
+19 \\foo.local\x5cxbar
+11 \xc3\xbcber
+21 c\xcc\x8ca\xcc\x81rka
+56 \xd0\x9c\xd0\xbe\xd1\x81\xd0\xba\xd0\xb2\xd0\xb0\xcc\x81
+24 \xe5\x8c\x97\xe4\xba\xac
+16 \xf0\x9f\x90\xb1
+4 \xff
+16 \xe8\xe1\xf9\xa7

tests/expected/misc/mbsencode-invalid-utf8

@@ -0,0 +1,10 @@
+9 foo	bar baz
+15 \\foo.local\bar
+19 \\foo.local\x5cxbar
+4 über
+5 čárka
+6 Москва́
+4 北京
+2 🐱
+4 \xff
+16 \xe8\xe1\xf9\xa7

tests/expected/misc/mbsencode-safe-ascii

@@ -0,0 +1,10 @@
+14 foo\x09bar baz
+15 \\foo.local\bar
+19 \\foo.local\x5cxbar
+11 \xc3\xbcber
+21 c\xcc\x8ca\xcc\x81rka
+56 \xd0\x9c\xd0\xbe\xd1\x81\xd0\xba\xd0\xb2\xd0\xb0\xcc\x81
+24 \xe5\x8c\x97\xe4\xba\xac
+16 \xf0\x9f\x90\xb1
+4 \xff
+16 \xe8\xe1\xf9\xa7

tests/expected/misc/mbsencode-safe-utf8

@@ -0,0 +1,10 @@
+14 foo\x09bar baz
+15 \\foo.local\bar
+19 \\foo.local\x5cxbar
+4 über
+5 čárka
+6 Москва́
+4 北京
+2 🐱
+4 \xff
+16 \xe8\xe1\xf9\xa7

tests/helpers/Makemodule.am

@@ -1,3 +1,6 @@
+check_PROGRAMS += test_mbsencode
+test_mbsencode_SOURCES = tests/helpers/test_mbsencode.c
+test_mbsencode_LDADD = $(LDADD) libcommon.la
 
 check_PROGRAMS += test_byteswap
 test_byteswap_SOURCES = tests/helpers/test_byteswap.c

tests/helpers/test_mbsencode.c

@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2018 Vaclav Dolezal <vdolezal@redhat.com>
+ *
+ * This file is part of util-linux.
+ *
+ * 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <locale.h>
+
+#include "mbsalign.h"
+
+int main(int argc, char **argv)
+{
+	int i = 1;
+	char *(*encode_fn)(const char *, size_t *) = mbs_safe_encode;
+
+	setlocale(LC_ALL, "");
+
+	if (i < argc) {
+		if (!strcmp(argv[i], "--safe")) {
+			i++;
+			encode_fn = mbs_safe_encode;
+		} else if (!strcmp(argv[i], "--invalid")) {
+			i++;
+			encode_fn = mbs_invalid_encode;
+		} else if (!strcmp(argv[i], "--")) {
+			i++;
+		}
+	}
+
+	for (; i < argc; i++) {
+		size_t width;
+		char *res;
+		res = encode_fn(argv[i], &width);
+		printf("%zi %s\n", width, res);
+		free(res);
+	}
+
+	return 0;
+}

tests/ts/misc/mbsencode

@@ -0,0 +1,62 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2018 Vaclav Dolezal <vdolezal@redhat.com>
+#
+# This file is part of util-linux.
+#
+# 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.
+#
+
+TS_TOPDIR="${0%/*}/../.."
+TS_DESC="mbsencode"
+
+. $TS_TOPDIR/functions.sh
+ts_init "$*"
+
+STRINGS=(
+# ASCII
+	$'foo\tbar baz'
+	 '\\foo.local\bar'
+	 '\\foo.local\xbar'
+
+# UNICODE
+	 'über'
+	$'c\xcc\x8ca\xcc\x81rka' # 'c\u030Ca\u0301rka'
+	 'Москва́'
+	 '北京'
+	$'\xf0\x9f\x90\xb1' # \U0001F431
+
+# INVALID UNICODE
+	$'\xff'
+	$'\xe8\xe1\xf9\xa7'
+)
+
+ts_init_subtest "safe-ascii"
+$TS_HELPER_MBSENCODE --safe "${STRINGS[@]}" >> $TS_OUTPUT 2>&1
+ts_finalize_subtest
+
+ts_init_subtest "invalid-ascii"
+$TS_HELPER_MBSENCODE --invalid "${STRINGS[@]}" >> $TS_OUTPUT 2>&1
+ts_finalize_subtest
+
+ts_init_subtest "safe-utf8"
+LC_ALL=C.UTF-8 \
+$TS_HELPER_MBSENCODE --safe "${STRINGS[@]}" >> $TS_OUTPUT 2>&1
+ts_finalize_subtest
+
+ts_init_subtest "invalid-utf8"
+LC_ALL=C.UTF-8 \
+$TS_HELPER_MBSENCODE --invalid "${STRINGS[@]}" >> $TS_OUTPUT 2>&1
+ts_finalize_subtest
+
+ts_finalize
+