fixed client protocol low level API (#49)

* fixed client protocol low level API: enables usage of providing clients along with other websocket protocols

* fix: made some c'tors explicit

test/provider/test_client_protocol.cc

@@ -0,0 +1,72 @@
+#include <gtest/gtest.h>
+#include <gmock/gmock.h>
+
+#include <webfuse/provider/client_protocol.h>
+#include <webfuse/provider/client_config.h>
+#include "fake_adapter_server.hpp"
+
+#include <cstring>
+#include <thread>
+#include <atomic>
+
+using webfuse_test::FakeAdapterServer;
+using testing::_;
+
+namespace
+{
+
+struct Context
+{
+    lws_context * context;
+    std::atomic<bool> isShutdownRequested;
+};
+
+void run(Context * context)
+{
+    while (!context->isShutdownRequested)
+    {
+        lws_service(context->context, 100);
+    }
+}
+
+
+}
+
+
+TEST(client_protocol, connect)
+{
+    FakeAdapterServer server(54321);
+
+    wfp_client_config * config = wfp_client_config_create();
+    wfp_client_protocol * protocol = wfp_client_protocol_create(config);
+
+    struct lws_protocols protocols[2];
+    memset(protocols, 0, sizeof(struct lws_protocols) * 2);
+    protocols[0].name = "fs";
+    wfp_client_protocol_init_lws(protocol, &protocols[0]);
+
+    struct lws_context_creation_info info;
+    memset(&info, 0, sizeof(struct lws_context_creation_info));
+    info.port = CONTEXT_PORT_NO_LISTEN;
+    info.protocols = protocols;
+    info.uid = -1;
+    info.gid = -1;
+
+    struct lws_context * context = lws_create_context(&info);
+    wfp_client_protocol_connect(protocol, context, "ws://localhost:54321/");
+
+    Context ctx;
+    ctx.context = context;
+    ctx.isShutdownRequested = false;
+    std::thread client_thread(run, &ctx);
+
+    server.waitForConnection();
+    
+    ctx.isShutdownRequested = true;
+    client_thread.join();
+
+    lws_context_destroy(context);
+
+    wfp_client_protocol_dispose(protocol);
+    wfp_client_config_dispose(config);
+}