Allow test_sslctx to work with mbed TLS

Signed-off-by: Arne Schwabe <arne@openvpn.net>

test/unittests/test_sslctx.cpp

@@ -22,7 +22,6 @@
 
 #include <openvpn/ssl/sslchoose.hpp>
 
-#ifdef USE_OPENSSL
 
 #include <openvpn/ssl/sslapi.hpp>
 
@@ -256,6 +255,9 @@ TEST(sslctx_ut, config_new_factory_server)
     SSLLib::SSLAPI::Config::Ptr config = new SSLLib::SSLAPI::Config;
     EXPECT_TRUE(config);
 
+    StrongRandomAPI::Ptr rng(new SSLLib::RandomAPI());
+    config->set_rng(rng);
+
     config->set_mode(Mode(Mode::SERVER));
     config->load_cert(cert_txt);
     config->load_private_key(pvt_key_txt);
@@ -273,6 +275,9 @@ TEST(sslctx_ut, config_new_factory_client)
     SSLLib::SSLAPI::Config::Ptr config = new SSLLib::SSLAPI::Config;
     EXPECT_TRUE(config);
 
+    StrongRandomAPI::Ptr rng(new SSLLib::RandomAPI());
+    config->set_rng(rng);
+
     config->set_mode(Mode(Mode::CLIENT));
     config->load_cert(cert_txt);
     config->load_private_key(pvt_key_txt);
@@ -357,6 +362,9 @@ static inline auto MakeClient(Frame::Ptr frame)
     SSLLib::SSLAPI::Config::Ptr config = new SSLLib::SSLAPI::Config;
     EXPECT_TRUE(config);
 
+    StrongRandomAPI::Ptr rng(new SSLLib::RandomAPI());
+    config->set_rng(rng);
+
     config->set_mode(Mode(Mode::CLIENT));
     config->load_cert(cert_txt);
     config->load_private_key(pvt_key_txt);
@@ -378,6 +386,9 @@ static inline auto MakeServer(Frame::Ptr frame, const std::string &pvt_key, cons
     config->enable_legacy_algorithms(false);
     EXPECT_TRUE(config);
 
+    StrongRandomAPI::Ptr rng(new SSLLib::RandomAPI());
+    config->set_rng(rng);
+
     config->set_mode(Mode(Mode::SERVER));
     config->load_cert(cert);
     config->load_private_key(pvt_key);
@@ -469,6 +480,4 @@ TEST(sslctx_ut, clienthello)
     EXPECT_TRUE(server->read_ciphertext_ready());
     auto buf = server->read_ciphertext();
     ASSERT_TRUE(buf->length() > 1);
-}
-
-#endif
+}