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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 <stddef.h>
#include <string>
#include "base/callback_helpers.h"
#include "base/message_loop/message_loop.h"
#include "blimp/common/create_blimp_message.h"
#include "blimp/common/proto/blimp_message.pb.h"
#include "blimp/common/protocol_version.h"
#include "blimp/net/blimp_connection.h"
#include "blimp/net/blimp_transport.h"
#include "blimp/net/client_connection_manager.h"
#include "blimp/net/test_common.h"
#include "net/base/completion_callback.h"
#include "net/base/net_errors.h"
#include "net/base/test_completion_callback.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using testing::_;
using testing::Eq;
using testing::Return;
using testing::SaveArg;
namespace blimp {
namespace {
const char kDummyClientToken[] = "dummy-client-token";
} // namespace
class ClientConnectionManagerTest : public testing::Test {
public:
ClientConnectionManagerTest()
: manager_(new ClientConnectionManager(&connection_handler_)),
transport1_(new testing::StrictMock<MockTransport>),
transport2_(new testing::StrictMock<MockTransport>),
reader_(new MockPacketReader),
writer_(new MockPacketWriter),
connection_(new BlimpConnection(make_scoped_ptr(reader_),
make_scoped_ptr(writer_))),
start_connection_message_(
CreateStartConnectionMessage(kDummyClientToken, kProtocolVersion)) {
manager_->set_client_token(kDummyClientToken);
}
~ClientConnectionManagerTest() override {}
protected:
base::MessageLoop message_loop_;
testing::StrictMock<MockConnectionHandler> connection_handler_;
scoped_ptr<ClientConnectionManager> manager_;
scoped_ptr<testing::StrictMock<MockTransport>> transport1_;
scoped_ptr<testing::StrictMock<MockTransport>> transport2_;
MockPacketReader* reader_;
MockPacketWriter* writer_;
scoped_ptr<BlimpConnection> connection_;
scoped_ptr<BlimpMessage> start_connection_message_;
};
// The 1st transport connects, and the 2nd transport is not used.
TEST_F(ClientConnectionManagerTest, FirstTransportConnects) {
net::CompletionCallback write_cb;
net::CompletionCallback connect_cb_1;
EXPECT_CALL(*transport1_, Connect(_)).WillOnce(SaveArg<0>(&connect_cb_1));
EXPECT_CALL(connection_handler_, HandleConnectionPtr(Eq(connection_.get())));
EXPECT_CALL(*writer_,
WritePacket(BufferEqualsProto(*start_connection_message_), _))
.WillOnce(SaveArg<1>(&write_cb));
EXPECT_CALL(*transport1_, TakeConnectionPtr())
.WillOnce(Return(connection_.release()));
ASSERT_TRUE(connect_cb_1.is_null());
manager_->AddTransport(std::move(transport1_));
manager_->AddTransport(std::move(transport2_));
manager_->Connect();
ASSERT_FALSE(connect_cb_1.is_null());
base::ResetAndReturn(&connect_cb_1).Run(net::OK);
base::ResetAndReturn(&write_cb).Run(net::OK);
}
// The 1st transport fails to connect, and the 2nd transport connects.
TEST_F(ClientConnectionManagerTest, SecondTransportConnects) {
net::CompletionCallback write_cb;
net::CompletionCallback connect_cb_1;
EXPECT_CALL(*transport1_, Connect(_)).WillOnce(SaveArg<0>(&connect_cb_1));
net::CompletionCallback connect_cb_2;
EXPECT_CALL(*transport2_, Connect(_)).WillOnce(SaveArg<0>(&connect_cb_2));
EXPECT_CALL(*writer_,
WritePacket(BufferEqualsProto(*start_connection_message_), _))
.WillOnce(SaveArg<1>(&write_cb));
EXPECT_CALL(connection_handler_, HandleConnectionPtr(Eq(connection_.get())));
EXPECT_CALL(*transport2_, TakeConnectionPtr())
.WillOnce(Return(connection_.release()));
ASSERT_TRUE(connect_cb_1.is_null());
ASSERT_TRUE(connect_cb_2.is_null());
manager_->AddTransport(std::move(transport1_));
manager_->AddTransport(std::move(transport2_));
manager_->Connect();
ASSERT_FALSE(connect_cb_1.is_null());
base::ResetAndReturn(&connect_cb_1).Run(net::ERR_FAILED);
ASSERT_FALSE(connect_cb_2.is_null());
base::ResetAndReturn(&connect_cb_2).Run(net::OK);
base::ResetAndReturn(&write_cb).Run(net::OK);
}
// Both transports fail to connect.
TEST_F(ClientConnectionManagerTest, BothTransportsFailToConnect) {
net::CompletionCallback connect_cb_1;
EXPECT_CALL(*transport1_, Connect(_)).WillOnce(SaveArg<0>(&connect_cb_1));
net::CompletionCallback connect_cb_2;
EXPECT_CALL(*transport2_, Connect(_)).WillOnce(SaveArg<0>(&connect_cb_2));
ASSERT_TRUE(connect_cb_1.is_null());
ASSERT_TRUE(connect_cb_2.is_null());
manager_->AddTransport(std::move(transport1_));
manager_->AddTransport(std::move(transport2_));
manager_->Connect();
ASSERT_FALSE(connect_cb_1.is_null());
ASSERT_TRUE(connect_cb_2.is_null());
base::ResetAndReturn(&connect_cb_1).Run(net::ERR_FAILED);
ASSERT_FALSE(connect_cb_2.is_null());
base::ResetAndReturn(&connect_cb_2).Run(net::ERR_FAILED);
}
} // namespace blimp
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