put wf_client into a separate thread for testing

meson.build

@@ -211,6 +211,7 @@ alltests = executable('alltests',
 	'test/webfuse/utils/static_filesystem.c',
 	'test/webfuse/utils/ws_server.cc',
 	'test/webfuse/utils/ws_server2.cc',
+	'test/webfuse/utils/adapter_client.cc',
 	'test/webfuse/utils/jansson_test_environment.cc',
 	'test/webfuse/mocks/fake_invokation_context.cc',
 	'test/webfuse/mocks/mock_authenticator.cc',

test/webfuse/tests/adapter/test_client.cc

@@ -1,8 +1,8 @@
 #include <gtest/gtest.h>
 #include <gmock/gmock.h>
 
-#include "webfuse/adapter/client.h"
-#include "webfuse/adapter/credentials.h"
+#include "webfuse/utils/adapter_client.hpp"
+
 #include "webfuse/adapter/credentials.h"
 #include "webfuse/core/protocol_names.h"
 #include "webfuse/utils/ws_server2.hpp"
@@ -10,6 +10,7 @@
 #include "webfuse/mocks/mock_invokation_handler.hpp"
 #include "webfuse/utils/timeout_watcher.hpp"
 
+using webfuse_test::AdapterClient;
 using webfuse_test::WsServer2;
 using webfuse_test::MockInvokationHander;
 using webfuse_test::MockAdapterClientCallback;
@@ -34,79 +35,6 @@ void GetCredentials(wf_client *, int, void * arg)
     wf_credentials_add(creds, "password", "secret");
 }
 
-enum class connection_state
-{
-    disconnected,
-    connected,
-    connecting
-};
-
-struct context
-{
-    connection_state state;
-};
-
-void callback(
-    wf_client * client,
-    int reason,
-    void * args)
-{
-    auto * ctx = reinterpret_cast<context*>(wf_client_get_userdata(client));
-
-    switch (reason)
-    {
-        case WF_CLIENT_CREATED:
-            ctx->state = connection_state::connecting;
-            wf_client_connect(client, "ws://dummy-server/");
-            break;
-        case WF_CLIENT_CONNECTED:
-            ctx->state = connection_state::connected;
-            wf_client_authenticate(client);
-            break;
-        case WF_CLIENT_AUTHENTICATED:
-            wf_client_add_filesystem(client, ".", "test");
-            break;
-        case WF_CLIENT_AUTHENTICATION_FAILED:
-            wf_client_disconnect(client);
-            break;
-        case WF_CLIENT_AUTHENTICATE_GET_CREDENTIALS:
-            {
-                auto * credentials = reinterpret_cast<wf_credentials*>(args);
-                wf_credentials_set_type(credentials, "username");
-                wf_credentials_add(credentials, "user", "bob");
-                wf_credentials_add(credentials, "password", "secret");
-            }
-            break;
-        case WF_CLIENT_FILESYSTEM_ADDED:
-            // operational
-            break;
-        case WF_CLIENT_FILESYSTEM_ADD_FAILED:
-            wf_client_disconnect(client);
-            break;
-        case WF_CLIENT_DISCONNECTED:
-            ctx->state = connection_state::disconnected;
-            break;
-        default:
-            break;
-    }
-}
-
-}
-
-TEST(AdapterClient, GeneralUsage)
-{
-    context ctx;
-    ctx.state = connection_state::connecting;
-
-    wf_client * client = wf_client_create(
-        &callback, reinterpret_cast<void*>(&ctx));
-
-    while (ctx.state != connection_state::disconnected)
-    {
-        wf_client_service(client);
-    }
-
-    wf_client_dispose(client);
 }
 
 TEST(AdapterClient, CreateAndDispose)
@@ -141,25 +69,19 @@ TEST(AdapterClient, Connect)
     EXPECT_CALL(callback, Invoke(_, WF_CLIENT_CONNECTED, nullptr)).Times(1);
     EXPECT_CALL(callback, Invoke(_, WF_CLIENT_DISCONNECTED, nullptr)).Times(1);
 
+    AdapterClient client(callback.GetCallbackFn(), callback.GetUserData(), server.GetUrl());
 
-    wf_client * client = wf_client_create(
-        callback.GetCallbackFn(), callback.GetUserData());
-
-    wf_client_connect(client, server.GetUrl().c_str());
+    client.Connect();
     while (!server.IsConnected())
     {
         watcher.check();
-        wf_client_service(client);
     }
 
-    wf_client_disconnect(client);
+    client.Disconnect();
     while (server.IsConnected())
     {
         watcher.check();
-        wf_client_service(client);
     }
-
-    wf_client_dispose(client);
 }
 
 TEST(AdapterClient, Authenticate)
@@ -181,31 +103,24 @@ TEST(AdapterClient, Authenticate)
             called = true;
         }));
 
-    wf_client * client = wf_client_create(
-        callback.GetCallbackFn(), callback.GetUserData());
-
+    AdapterClient client(callback.GetCallbackFn(), callback.GetUserData(), server.GetUrl());
 
-    wf_client_connect(client, server.GetUrl().c_str());
+    client.Connect();
     while (!server.IsConnected())
     {
         watcher.check();
-        wf_client_service(client);
     }
 
-    wf_client_authenticate(client);
+    client.Authenticate();
     while (!called) {
         watcher.check();
-        wf_client_service(client);
     }
 
-    wf_client_disconnect(client);
+    client.Disconnect();
     while (server.IsConnected())
     {
         watcher.check();
-        wf_client_service(client);
     }
-
-    wf_client_dispose(client);
 }
 
 TEST(AdapterClient, AuthenticateFailedWithoutConnect)
@@ -222,17 +137,12 @@ TEST(AdapterClient, AuthenticateFailedWithoutConnect)
             called = true;
         }));
 
-    wf_client * client = wf_client_create(
-        callback.GetCallbackFn(), callback.GetUserData());
-
+    AdapterClient client(callback.GetCallbackFn(), callback.GetUserData(), "");
 
-    wf_client_authenticate(client);
+    client.Authenticate();
     while (!called) {
         watcher.check();
-        wf_client_service(client);
     }
-
-    wf_client_dispose(client);
 }
 
 TEST(AdapterClient, AuthenticationFailed)
@@ -254,29 +164,22 @@ TEST(AdapterClient, AuthenticationFailed)
             called = true;
         }));
 
-    wf_client * client = wf_client_create(
-        callback.GetCallbackFn(), callback.GetUserData());
-
+    AdapterClient client(callback.GetCallbackFn(), callback.GetUserData(), server.GetUrl());
 
-    wf_client_connect(client, server.GetUrl().c_str());
+    client.Connect();
     while (!server.IsConnected())
     {
         watcher.check();
-        wf_client_service(client);
     }
 
-    wf_client_authenticate(client);
+    client.Authenticate();
     while (!called) {
         watcher.check();
-        wf_client_service(client);
     }
 
-    wf_client_disconnect(client);
+    client.Disconnect();
     while (server.IsConnected())
     {
         watcher.check();
-        wf_client_service(client);
     }
-
-    wf_client_dispose(client);
-}
+}

test/webfuse/utils/adapter_client.cc

@@ -0,0 +1,136 @@
+#include "webfuse/utils/adapter_client.hpp"
+#include <thread>
+#include <mutex>
+#include <queue>
+
+namespace
+{
+
+enum class Command
+{
+    run,
+    shutdown,
+    connect,
+    disconnect,
+    authenticate,
+    add_filesystem
+};
+
+}
+
+namespace webfuse_test
+{
+
+class AdapterClient::Private
+{
+public:
+    Private(
+        wf_client_callback_fn * callback,
+        void * user_data,
+        std::string const & url)
+    : client(wf_client_create(callback, user_data))
+    , url_(url)
+    , command(Command::run)
+    {
+        thread = std::thread(&Run, this);
+    }
+
+    ~Private()
+    {
+        ApplyCommand(Command::shutdown);
+        thread.join();
+        wf_client_dispose(client);
+    }
+
+    void ApplyCommand(Command actual_command)
+    {
+        {
+            std::unique_lock<std::mutex> lock(mutex);
+            command = actual_command;
+        }
+
+        wf_client_interrupt(client);
+    }
+
+private:
+    static void Run(Private * self)
+    {
+        bool is_running = true;
+        while (is_running)
+        {
+            Command actual_command;
+            {
+                std::unique_lock<std::mutex> lock(self->mutex);
+                actual_command = self->command;
+                self->command = Command::run;
+            }
+
+            switch (actual_command)
+            {
+                case Command::run:
+                    wf_client_service(self->client);
+                    break;
+                case Command::connect:
+                    wf_client_connect(self->client, self->url_.c_str());
+                    break;
+                case Command::disconnect:
+                    wf_client_disconnect(self->client);
+                    break;
+                case Command::authenticate:
+                    wf_client_authenticate(self->client);
+                    break;
+                case Command::add_filesystem:
+                    wf_client_add_filesystem(self->client, "/tmp", "test");
+                    break;
+                case Command::shutdown:
+                    // fall-through
+                default:
+                    is_running = false;
+                    break;
+            }
+
+        }
+    }     
+
+    wf_client * client;
+    std::string url_;
+    Command command;
+    std::thread thread;
+    std::mutex mutex;
+};
+
+AdapterClient::AdapterClient(
+    wf_client_callback_fn * callback,
+    void * user_data,
+    std::string const & url)
+: d(new Private(callback, user_data, url))
+{
+
+}
+
+AdapterClient::~AdapterClient()
+{
+    delete d;
+}
+
+void AdapterClient::Connect()
+{
+    d->ApplyCommand(Command::connect);
+}
+
+void AdapterClient::Disconnect()
+{
+    d->ApplyCommand(Command::disconnect);
+}
+
+void AdapterClient::Authenticate()
+{
+    d->ApplyCommand(Command::authenticate);
+}
+
+void AdapterClient::AddFileSystem()
+{
+    d->ApplyCommand(Command::add_filesystem);
+}
+
+}

test/webfuse/utils/adapter_client.hpp

@@ -0,0 +1,31 @@
+#ifndef WF_UTILS_ADAPTER_CLIENT_HPP
+#define WF_UTILS_APAPTER_CLIENT_HPP
+
+#include "webfuse/adapter/client.h"
+#include <string>
+
+namespace webfuse_test
+{
+
+class AdapterClient
+{
+    AdapterClient(AdapterClient const &) = delete;
+    AdapterClient& operator=(AdapterClient const &) = delete;
+public:
+    AdapterClient(
+        wf_client_callback_fn * callback,
+        void * user_data,
+        std::string const & url);
+    ~AdapterClient();
+    void Connect();
+    void Disconnect();
+    void Authenticate();
+    void AddFileSystem();
+private:
+    class Private;
+    Private * d;
+};
+
+}
+
+#endif