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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/base/network_change_notifier_linux.h"
#include "base/bind.h"
#include "base/message_loop_proxy.h"
#include "base/synchronization/waitable_event.h"
#include "dbus/mock_bus.h"
#include "dbus/mock_object_proxy.h"
#include "dbus/message.h"
#include "dbus/object_path.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace net {
using testing::_;
using testing::DoAll;
using testing::InvokeWithoutArgs;
using testing::Return;
using testing::SaveArg;
class NetworkChangeNotifierLinuxTest : public testing::Test {
protected:
// A subset of the NetworkManager-defined constants used in
// the tests below. See network_change_notifier_linux.cc
// for the full list.
enum {
NM_STATE_DISCONNECTED = 20,
NM_STATE_DISCONNECTING = 30,
NM_STATE_CONNECTED_SITE = 70,
NM_STATE_CONNECTED_GLOBAL = 70
};
NetworkChangeNotifierLinuxTest()
: initialized_(false, false) {}
virtual void SetUp() {
dbus::Bus::Options options;
options.bus_type = dbus::Bus::SYSTEM;
mock_bus_ = new dbus::MockBus(options);
mock_object_proxy_ = new dbus::MockObjectProxy(
mock_bus_.get(),
"service_name",
dbus::ObjectPath("service_path"));
EXPECT_CALL(*mock_bus_, GetObjectProxyWithOptions(_, _, _))
.WillOnce(Return(mock_object_proxy_.get()));
EXPECT_CALL(*mock_object_proxy_, CallMethod(_, _, _))
.WillOnce(SaveArg<2>(&response_callback_));
EXPECT_CALL(*mock_object_proxy_, ConnectToSignal(_, _, _, _))
.WillOnce(
DoAll(
SaveArg<2>(&signal_callback_),
InvokeWithoutArgs(
this,
&NetworkChangeNotifierLinuxTest::Initialize)));
notifier_.reset(NetworkChangeNotifierLinux::CreateForTest(mock_bus_.get()));
initialized_.Wait();
}
void Initialize() {
notifier_thread_proxy_ = base::MessageLoopProxy::current();
initialized_.Signal();
}
void RunOnNotifierThread(const base::Closure& callback) {
base::WaitableEvent event(false, false);
notifier_thread_proxy_->PostTask(FROM_HERE, base::Bind(
&RunOnNotifierThreadHelper, callback, &event));
event.Wait();
// Run any tasks queued on the main thread, e.g. by
// ObserverListThreadSafe.
MessageLoop::current()->RunAllPending();
}
void SendResponse(uint32 state) {
scoped_ptr<dbus::Response> response(dbus::Response::CreateEmpty());
dbus::MessageWriter writer(response.get());
writer.AppendVariantOfUint32(state);
RunOnNotifierThread(base::Bind(response_callback_, response.get()));
}
void SendSignal(uint32 state) {
dbus::Signal signal("org.freedesktop.NetworkManager", "StateChanged");
dbus::MessageWriter writer(&signal);
writer.AppendUint32(state);
RunOnNotifierThread(base::Bind(signal_callback_, &signal));
}
dbus::ObjectProxy::ResponseCallback response_callback_;
dbus::ObjectProxy::SignalCallback signal_callback_;
// Allows creating a new NetworkChangeNotifier. Must be created before
// |notifier_| and destroyed after it to avoid DCHECK failures.
NetworkChangeNotifier::DisableForTest disable_for_test_;
scoped_ptr<NetworkChangeNotifier> notifier_;
private:
static void RunOnNotifierThreadHelper(const base::Closure& callback,
base::WaitableEvent* event) {
callback.Run();
event->Signal();
}
base::WaitableEvent initialized_;
// Valid only after initialized_ is signaled.
scoped_refptr<base::MessageLoopProxy> notifier_thread_proxy_;
scoped_refptr<dbus::MockBus> mock_bus_;
scoped_refptr<dbus::MockObjectProxy> mock_object_proxy_;
};
namespace {
class OfflineObserver : public NetworkChangeNotifier::ConnectionTypeObserver {
public:
OfflineObserver()
: notification_count(0),
last_online_value(true) {
NetworkChangeNotifier::AddConnectionTypeObserver(this);
}
~OfflineObserver() {
NetworkChangeNotifier::RemoveConnectionTypeObserver(this);
}
virtual void OnConnectionTypeChanged(
NetworkChangeNotifier::ConnectionType type) OVERRIDE {
notification_count++;
last_online_value = type != NetworkChangeNotifier::CONNECTION_NONE;
}
int notification_count;
bool last_online_value;
};
TEST_F(NetworkChangeNotifierLinuxTest, Offline) {
SendResponse(NM_STATE_DISCONNECTED);
EXPECT_EQ(NetworkChangeNotifier::CONNECTION_NONE,
NetworkChangeNotifier::GetConnectionType());
}
TEST_F(NetworkChangeNotifierLinuxTest, Online) {
SendResponse(NM_STATE_CONNECTED_GLOBAL);
EXPECT_NE(NetworkChangeNotifier::CONNECTION_NONE,
NetworkChangeNotifier::GetConnectionType());}
TEST_F(NetworkChangeNotifierLinuxTest, OfflineThenOnline) {
OfflineObserver observer;
SendResponse(NM_STATE_DISCONNECTED);
EXPECT_EQ(NetworkChangeNotifier::CONNECTION_NONE,
NetworkChangeNotifier::GetConnectionType());
EXPECT_EQ(0, observer.notification_count);
SendSignal(NM_STATE_CONNECTED_GLOBAL);
EXPECT_NE(NetworkChangeNotifier::CONNECTION_NONE,
NetworkChangeNotifier::GetConnectionType());
EXPECT_EQ(1, observer.notification_count);
EXPECT_TRUE(observer.last_online_value);
}
TEST_F(NetworkChangeNotifierLinuxTest, MultipleStateChanges) {
OfflineObserver observer;
SendResponse(NM_STATE_CONNECTED_GLOBAL);
EXPECT_NE(NetworkChangeNotifier::CONNECTION_NONE,
NetworkChangeNotifier::GetConnectionType());
EXPECT_EQ(0, observer.notification_count);
SendSignal(NM_STATE_DISCONNECTED);
EXPECT_EQ(NetworkChangeNotifier::CONNECTION_NONE,
NetworkChangeNotifier::GetConnectionType());
EXPECT_EQ(1, observer.notification_count);
EXPECT_FALSE(observer.last_online_value);
SendSignal(NM_STATE_CONNECTED_GLOBAL);
EXPECT_NE(NetworkChangeNotifier::CONNECTION_NONE,
NetworkChangeNotifier::GetConnectionType());
EXPECT_EQ(2, observer.notification_count);
EXPECT_TRUE(observer.last_online_value);
}
TEST_F(NetworkChangeNotifierLinuxTest, IgnoreContinuedOnlineState) {
OfflineObserver observer;
SendResponse(NM_STATE_CONNECTED_SITE);
EXPECT_NE(NetworkChangeNotifier::CONNECTION_NONE,
NetworkChangeNotifier::GetConnectionType());
EXPECT_EQ(0, observer.notification_count);
SendSignal(NM_STATE_CONNECTED_GLOBAL);
EXPECT_NE(NetworkChangeNotifier::CONNECTION_NONE,
NetworkChangeNotifier::GetConnectionType());
EXPECT_EQ(0, observer.notification_count);
}
TEST_F(NetworkChangeNotifierLinuxTest, IgnoreContinuedOfflineState) {
OfflineObserver observer;
SendResponse(NM_STATE_DISCONNECTING);
EXPECT_EQ(NetworkChangeNotifier::CONNECTION_NONE,
NetworkChangeNotifier::GetConnectionType());
EXPECT_EQ(0, observer.notification_count);
SendSignal(NM_STATE_DISCONNECTED);
EXPECT_EQ(NetworkChangeNotifier::CONNECTION_NONE,
NetworkChangeNotifier::GetConnectionType());
EXPECT_EQ(0, observer.notification_count);
}
TEST_F(NetworkChangeNotifierLinuxTest, NullResponse) {
RunOnNotifierThread(base::Bind(
response_callback_, static_cast<dbus::Response*>(NULL)));
EXPECT_NE(NetworkChangeNotifier::CONNECTION_NONE,
NetworkChangeNotifier::GetConnectionType());
}
TEST_F(NetworkChangeNotifierLinuxTest, EmptyResponse) {
scoped_ptr<dbus::Response> response(dbus::Response::CreateEmpty());
RunOnNotifierThread(base::Bind(response_callback_, response.get()));
EXPECT_NE(NetworkChangeNotifier::CONNECTION_NONE,
NetworkChangeNotifier::GetConnectionType());
}
TEST_F(NetworkChangeNotifierLinuxTest, InvalidResponse) {
scoped_ptr<dbus::Response> response(dbus::Response::CreateEmpty());
dbus::MessageWriter writer(response.get());
writer.AppendUint16(20); // Uint16 instead of the expected Uint32
RunOnNotifierThread(base::Bind(response_callback_, response.get()));
EXPECT_NE(NetworkChangeNotifier::CONNECTION_NONE,
NetworkChangeNotifier::GetConnectionType());
}
} // namespace
} // namespace net
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