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// Copyright 2013 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 <algorithm>
#include <memory>
#include <vector>
#include "content/browser/websockets/websocket_manager.h"
#include "content/public/test/test_browser_thread_bundle.h"
#include "ipc/ipc_message.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
#include "url/origin.h"
namespace content {
namespace {
// This number is unlikely to occur by chance.
static const int kMagicRenderProcessId = 506116062;
class TestWebSocketImpl : public network::WebSocket {
public:
TestWebSocketImpl(
std::unique_ptr<Delegate> delegate,
network::mojom::WebSocketRequest request,
network::WebSocketThrottler::PendingConnection pending_connection_tracker,
int process_id,
int frame_id,
url::Origin origin,
base::TimeDelta delay)
: network::WebSocket(std::move(delegate),
std::move(request),
std::move(pending_connection_tracker),
process_id,
frame_id,
std::move(origin),
delay) {}
base::TimeDelta delay() const { return delay_; }
void SimulateConnectionError() {
OnConnectionError();
}
};
class TestWebSocketManager : public WebSocketManager {
public:
TestWebSocketManager()
: WebSocketManager(kMagicRenderProcessId, nullptr) {}
const std::vector<TestWebSocketImpl*>& sockets() const {
return sockets_;
}
int64_t num_pending_connections() const {
return throttler_.num_pending_connections();
}
int64_t num_current_succeeded_connections() const {
return throttler_.num_current_succeeded_connections();
}
int64_t num_previous_succeeded_connections() const {
return throttler_.num_previous_succeeded_connections();
}
int64_t num_current_failed_connections() const {
return throttler_.num_current_failed_connections();
}
int64_t num_previous_failed_connections() const {
return throttler_.num_previous_failed_connections();
}
void DoCreateWebSocket(network::mojom::WebSocketRequest request) {
WebSocketManager::DoCreateWebSocket(MSG_ROUTING_NONE, url::Origin(),
std::move(request));
}
private:
std::unique_ptr<network::WebSocket> CreateWebSocket(
std::unique_ptr<network::WebSocket::Delegate> delegate,
network::mojom::WebSocketRequest request,
network::WebSocketThrottler::PendingConnection pending_connection_tracker,
int process_id,
int frame_id,
url::Origin origin,
base::TimeDelta delay) override {
auto impl = std::make_unique<TestWebSocketImpl>(
std::move(delegate), std::move(request),
std::move(pending_connection_tracker), process_id, frame_id,
std::move(origin), delay);
// We keep a vector of sockets here to track their creation order.
sockets_.push_back(impl.get());
return impl;
}
void OnLostConnectionToClient(network::WebSocket* impl) override {
auto it = std::find(sockets_.begin(), sockets_.end(),
static_cast<TestWebSocketImpl*>(impl));
ASSERT_TRUE(it != sockets_.end());
sockets_.erase(it);
WebSocketManager::OnLostConnectionToClient(impl);
}
std::vector<TestWebSocketImpl*> sockets_;
};
class WebSocketManagerTest : public ::testing::Test {
public:
WebSocketManagerTest()
: thread_bundle_(TestBrowserThreadBundle::IO_MAINLOOP) {
websocket_manager_.reset(new TestWebSocketManager());
}
void AddMultipleChannels(int number_of_channels) {
for (int i = 0; i < number_of_channels; ++i) {
network::mojom::WebSocketPtr websocket;
websocket_manager_->DoCreateWebSocket(mojo::MakeRequest(&websocket));
}
}
void AddAndCancelMultipleChannels(int number_of_channels) {
for (int i = 0; i < number_of_channels; ++i) {
network::mojom::WebSocketPtr websocket;
websocket_manager_->DoCreateWebSocket(mojo::MakeRequest(&websocket));
websocket_manager_->sockets().back()->SimulateConnectionError();
}
}
TestWebSocketManager* websocket_manager() { return websocket_manager_.get(); }
private:
TestBrowserThreadBundle thread_bundle_;
std::unique_ptr<TestWebSocketManager> websocket_manager_;
};
TEST_F(WebSocketManagerTest, Construct) {
// Do nothing.
}
TEST_F(WebSocketManagerTest, CreateWebSocket) {
network::mojom::WebSocketPtr websocket;
websocket_manager()->DoCreateWebSocket(mojo::MakeRequest(&websocket));
EXPECT_EQ(1U, websocket_manager()->sockets().size());
}
TEST_F(WebSocketManagerTest, SendFrameButNotConnectedYet) {
network::mojom::WebSocketPtr websocket;
websocket_manager()->DoCreateWebSocket(mojo::MakeRequest(&websocket));
// This should not crash.
std::vector<uint8_t> data;
websocket->SendFrame(true, network::mojom::WebSocketMessageType::TEXT, data);
}
// The 256th connection is rejected by per-renderer WebSocket throttling.
// This is not counted as a failure.
TEST_F(WebSocketManagerTest, Rejects256thPendingConnection) {
AddMultipleChannels(256);
EXPECT_EQ(255, websocket_manager()->num_pending_connections());
EXPECT_EQ(0, websocket_manager()->num_current_succeeded_connections());
EXPECT_EQ(0, websocket_manager()->num_previous_succeeded_connections());
EXPECT_EQ(0, websocket_manager()->num_current_failed_connections());
EXPECT_EQ(0, websocket_manager()->num_previous_failed_connections());
ASSERT_EQ(255U, websocket_manager()->sockets().size());
}
} // namespace
} // namespace content
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