2 files changed, 95 insertions, 1 deletions
diff --git a/tests/unit_tests/openvpn/Makefile.am b/tests/unit_tests/openvpn/Makefile.am
index 50f3a02..44b77cc 100644
--- a/tests/unit_tests/openvpn/Makefile.am
+++ b/tests/unit_tests/openvpn/Makefile.am
@@ -6,7 +6,7 @@ if HAVE_LD_WRAP_SUPPORT
 test_binaries += argv_testdriver buffer_testdriver
 endif
 
-test_binaries += crypto_testdriver packet_id_testdriver auth_token_testdriver ncp_testdriver
+test_binaries += crypto_testdriver packet_id_testdriver auth_token_testdriver ncp_testdriver misc_testdriver
 if HAVE_LD_WRAP_SUPPORT
 test_binaries += tls_crypt_testdriver
 endif
@@ -127,3 +127,14 @@ ncp_testdriver_SOURCES = test_ncp.c mock_msg.c \
 	$(openvpn_srcdir)/packet_id.c \
 	$(openvpn_srcdir)/platform.c \
 	$(openvpn_srcdir)/ssl_util.c
+
+misc_testdriver_CFLAGS  = @TEST_CFLAGS@ \
+	-I$(openvpn_includedir) -I$(compat_srcdir) -I$(openvpn_srcdir)
+
+misc_testdriver_LDFLAGS = @TEST_LDFLAGS@
+
+misc_testdriver_SOURCES = test_misc.c mock_msg.c \
+    mock_get_random.c \
+	$(openvpn_srcdir)/buffer.c \
+	$(openvpn_srcdir)/ssl_util.c \
+	$(openvpn_srcdir)/platform.c
+\ No newline at end of file
diff --git a/tests/unit_tests/openvpn/test_misc.c b/tests/unit_tests/openvpn/test_misc.c
new file mode 100644
index 0000000..15f6cbf
--- /dev/null
+++ b/tests/unit_tests/openvpn/test_misc.c
@@ -0,0 +1,83 @@
+/*
+ *  OpenVPN -- An application to securely tunnel IP networks
+ *             over a single UDP port, with support for SSL/TLS-based
+ *             session authentication and key exchange,
+ *             packet encryption, packet authentication, and
+ *             packet compression.
+ *
+ *  Copyright (C) 2021 Arne Schwabe <arne@rfc2549.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2
+ *  as published by the Free Software Foundation.
+ *
+ *  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, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#elif defined(_MSC_VER)
+#include "config-msvc.h"
+#endif
+
+#include "syshead.h"
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <setjmp.h>
+#include <cmocka.h>
+
+#include "ssl_util.h"
+
+static void
+test_compat_lzo_string(void **state)
+{
+    struct gc_arena gc = gc_new();
+
+    const char* input = "V4,dev-type tun,link-mtu 1457,tun-mtu 1400,proto UDPv4,auth SHA1,keysize 128,key-method 2,tls-server";
+
+    const char* output = options_string_compat_lzo(input, &gc);
+
+    assert_string_equal(output, "V4,dev-type tun,link-mtu 1458,tun-mtu 1400,proto UDPv4,auth SHA1,keysize 128,key-method 2,tls-server,comp-lzo");
+
+    /* This string is has a much too small link-mtu so we should fail on it" */
+    input = "V4,dev-type tun,link-mtu 2,tun-mtu 1400,proto UDPv4,auth SHA1,keysize 128,key-method 2,tls-server";
+
+    output = options_string_compat_lzo(input, &gc);
+
+    assert_string_equal(input, output);
+
+    /* not matching at all */
+    input = "V4,dev-type tun";
+    output = options_string_compat_lzo(input, &gc);
+
+    assert_string_equal(input, output);
+
+
+    input = "V4,dev-type tun,link-mtu 999,tun-mtu 1400,proto UDPv4,auth SHA1,keysize 128,key-method 2,tls-server";
+    output = options_string_compat_lzo(input, &gc);
+
+    /* 999 -> 1000, 3 to 4 chars */
+    assert_string_equal(output, "V4,dev-type tun,link-mtu 1000,tun-mtu 1400,proto UDPv4,auth SHA1,keysize 128,key-method 2,tls-server,comp-lzo");
+
+};
+
+const struct CMUnitTest misc_tests[] = {
+    cmocka_unit_test(test_compat_lzo_string),
+};
+
+int
+main(void)
+{
+    return cmocka_run_group_tests(misc_tests, NULL, NULL);
+}