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// Copyright 2015 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 <utility>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/macros.h"
#include "base/run_loop.h"
#include "chromeos/dbus/dbus_thread_manager.h"
#include "components/arc/arc_bridge_service_impl.h"
#include "components/arc/test/fake_arc_bridge_instance.h"
#include "ipc/mojo/scoped_ipc_support.h"
#include "mojo/public/cpp/system/message_pipe.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace arc {
namespace {
// A fake ArcBridgeBootstrap that creates a local connection.
class FakeArcBridgeBootstrap : public ArcBridgeBootstrap {
public:
explicit FakeArcBridgeBootstrap(FakeArcBridgeInstance* instance)
: instance_(instance) {}
~FakeArcBridgeBootstrap() override {}
void Start() override {
DCHECK(delegate_);
ArcBridgeInstancePtr instance;
instance_->Bind(mojo::GetProxy(&instance));
delegate_->OnConnectionEstablished(std::move(instance));
}
void Stop() override {
DCHECK(delegate_);
instance_->Unbind();
delegate_->OnStopped();
}
private:
// Owned by the caller.
FakeArcBridgeInstance* instance_;
DISALLOW_COPY_AND_ASSIGN(FakeArcBridgeBootstrap);
};
} // namespace
class ArcBridgeTest : public testing::Test, public ArcBridgeService::Observer {
public:
ArcBridgeTest() : ready_(false) {}
~ArcBridgeTest() override {}
void OnStateChanged(ArcBridgeService::State state) override {
state_ = state;
switch (state) {
case ArcBridgeService::State::READY:
ready_ = true;
break;
case ArcBridgeService::State::STOPPED:
message_loop_.PostTask(FROM_HERE, message_loop_.QuitWhenIdleClosure());
break;
default:
break;
}
}
bool ready() const { return ready_; }
ArcBridgeService::State state() const { return state_; }
protected:
scoped_ptr<ArcBridgeServiceImpl> service_;
scoped_ptr<FakeArcBridgeInstance> instance_;
private:
void SetUp() override {
chromeos::DBusThreadManager::Initialize();
ready_ = false;
state_ = ArcBridgeService::State::STOPPED;
instance_.reset(new FakeArcBridgeInstance());
service_.reset(new ArcBridgeServiceImpl(
make_scoped_ptr(new FakeArcBridgeBootstrap(instance_.get()))));
service_->AddObserver(this);
}
void TearDown() override {
service_->RemoveObserver(this);
instance_.reset();
service_.reset();
chromeos::DBusThreadManager::Shutdown();
}
bool ready_;
ArcBridgeService::State state_;
base::MessageLoopForUI message_loop_;
DISALLOW_COPY_AND_ASSIGN(ArcBridgeTest);
};
// Exercises the basic functionality of the ARC Bridge Service. A message from
// within the instance should cause the observer to be notified.
TEST_F(ArcBridgeTest, Basic) {
ASSERT_FALSE(ready());
ASSERT_EQ(ArcBridgeService::State::STOPPED, state());
service_->SetAvailable(true);
service_->HandleStartup();
instance_->WaitForInitCall();
ASSERT_EQ(ArcBridgeService::State::READY, state());
service_->Shutdown();
ASSERT_EQ(ArcBridgeService::State::STOPPED, state());
}
// If not all pre-requisites are met, the instance is not started.
TEST_F(ArcBridgeTest, Prerequisites) {
ASSERT_FALSE(ready());
ASSERT_EQ(ArcBridgeService::State::STOPPED, state());
service_->SetAvailable(true);
ASSERT_EQ(ArcBridgeService::State::STOPPED, state());
service_->SetAvailable(false);
service_->HandleStartup();
ASSERT_EQ(ArcBridgeService::State::STOPPED, state());
}
// If the ArcBridgeService is shut down, it should be stopped, even
// mid-startup.
TEST_F(ArcBridgeTest, ShutdownMidStartup) {
ASSERT_FALSE(ready());
service_->SetAvailable(true);
service_->HandleStartup();
// WaitForInitCall() omitted.
ASSERT_EQ(ArcBridgeService::State::READY, state());
service_->Shutdown();
ASSERT_EQ(ArcBridgeService::State::STOPPED, state());
}
// If the channel is disconnected, it should be re-established.
TEST_F(ArcBridgeTest, Restart) {
ASSERT_FALSE(ready());
ASSERT_EQ(0, instance_->init_calls());
service_->SetAvailable(true);
service_->HandleStartup();
instance_->WaitForInitCall();
ASSERT_EQ(ArcBridgeService::State::READY, state());
ASSERT_EQ(1, instance_->init_calls());
// Simulate a connection loss.
service_->OnChannelClosed();
instance_->WaitForInitCall();
ASSERT_EQ(ArcBridgeService::State::READY, state());
ASSERT_EQ(2, instance_->init_calls());
service_->Shutdown();
ASSERT_EQ(ArcBridgeService::State::STOPPED, state());
}
} // namespace arc
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