blob: d8a0ec7576795e7b4dd7a0a7ee9ec6a99089854d [file] [log] [blame]
// 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 "blimp/net/blimp_connection.h"
#include <stddef.h>
#include <string>
#include "base/callback_helpers.h"
#include "base/memory/ptr_util.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/net/common.h"
#include "blimp/net/connection_error_observer.h"
#include "blimp/net/test_common.h"
#include "net/base/completion_callback.h"
#include "net/base/io_buffer.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::InSequence;
using testing::Return;
using testing::SaveArg;
namespace blimp {
namespace {
class BlimpConnectionTest : public testing::Test {
public:
BlimpConnectionTest() {
std::unique_ptr<testing::StrictMock<MockPacketWriter>> writer(
new testing::StrictMock<MockPacketWriter>);
writer_ = writer.get();
std::unique_ptr<testing::StrictMock<MockPacketReader>> reader(
new testing::StrictMock<MockPacketReader>);
reader_ = reader.get();
connection_.reset(
new BlimpConnection(std::move(reader), std::move(writer)));
connection_->AddConnectionErrorObserver(&error_observer1_);
connection_->AddConnectionErrorObserver(&error_observer2_);
connection_->AddConnectionErrorObserver(&error_observer3_);
connection_->RemoveConnectionErrorObserver(&error_observer3_);
}
~BlimpConnectionTest() override {}
void DropConnection() { connection_.reset(); }
protected:
std::unique_ptr<BlimpMessage> CreateInputMessage() {
InputMessage* input;
return CreateBlimpMessage(&input);
}
std::unique_ptr<BlimpMessage> CreateControlMessage() {
TabControlMessage* control;
return CreateBlimpMessage(&control);
}
base::MessageLoop message_loop_;
testing::StrictMock<MockPacketReader>* reader_;
testing::StrictMock<MockPacketWriter>* writer_;
testing::StrictMock<MockConnectionErrorObserver> error_observer1_;
testing::StrictMock<MockConnectionErrorObserver> error_observer2_;
// This error observer is Removed() immediately after it's added;
// it should never be called.
testing::StrictMock<MockConnectionErrorObserver> error_observer3_;
testing::StrictMock<MockBlimpMessageProcessor> receiver_;
std::unique_ptr<BlimpConnection> connection_;
};
// Write completes writing two packets asynchronously.
TEST_F(BlimpConnectionTest, AsyncTwoPacketsWrite) {
net::CompletionCallback write_packet_cb;
InSequence s;
EXPECT_CALL(*writer_,
WritePacket(BufferEqualsProto(*CreateInputMessage()), _))
.WillOnce(SaveArg<1>(&write_packet_cb))
.RetiresOnSaturation();
EXPECT_CALL(*writer_,
WritePacket(BufferEqualsProto(*CreateControlMessage()), _))
.WillOnce(SaveArg<1>(&write_packet_cb))
.RetiresOnSaturation();
EXPECT_CALL(error_observer1_, OnConnectionError(_)).Times(0);
EXPECT_CALL(error_observer2_, OnConnectionError(_)).Times(0);
EXPECT_CALL(error_observer3_, OnConnectionError(_)).Times(0);
BlimpMessageProcessor* sender = connection_->GetOutgoingMessageProcessor();
net::TestCompletionCallback complete_cb_1;
ASSERT_TRUE(write_packet_cb.is_null());
sender->ProcessMessage(CreateInputMessage(),
complete_cb_1.callback());
ASSERT_FALSE(write_packet_cb.is_null());
base::ResetAndReturn(&write_packet_cb).Run(net::OK);
EXPECT_EQ(net::OK, complete_cb_1.WaitForResult());
net::TestCompletionCallback complete_cb_2;
ASSERT_TRUE(write_packet_cb.is_null());
sender->ProcessMessage(CreateControlMessage(),
complete_cb_2.callback());
ASSERT_FALSE(write_packet_cb.is_null());
base::ResetAndReturn(&write_packet_cb).Run(net::OK);
EXPECT_EQ(net::OK, complete_cb_2.WaitForResult());
}
// Writer completes writing two packets asynchronously.
// First write succeeds, second fails.
TEST_F(BlimpConnectionTest, AsyncTwoPacketsWriteWithError) {
net::CompletionCallback write_packet_cb;
InSequence s;
EXPECT_CALL(*writer_,
WritePacket(BufferEqualsProto(*CreateInputMessage()), _))
.WillOnce(SaveArg<1>(&write_packet_cb))
.RetiresOnSaturation();
EXPECT_CALL(*writer_,
WritePacket(BufferEqualsProto(*CreateControlMessage()), _))
.WillOnce(SaveArg<1>(&write_packet_cb))
.RetiresOnSaturation();
EXPECT_CALL(error_observer1_, OnConnectionError(net::ERR_FAILED));
EXPECT_CALL(error_observer2_, OnConnectionError(net::ERR_FAILED));
EXPECT_CALL(error_observer3_, OnConnectionError(_)).Times(0);
BlimpMessageProcessor* sender = connection_->GetOutgoingMessageProcessor();
net::TestCompletionCallback complete_cb_1;
sender->ProcessMessage(CreateInputMessage(),
complete_cb_1.callback());
base::ResetAndReturn(&write_packet_cb).Run(net::OK);
EXPECT_EQ(net::OK, complete_cb_1.WaitForResult());
net::TestCompletionCallback complete_cb_2;
sender->ProcessMessage(CreateControlMessage(),
complete_cb_2.callback());
base::ResetAndReturn(&write_packet_cb).Run(net::ERR_FAILED);
EXPECT_EQ(net::ERR_FAILED, complete_cb_2.WaitForResult());
}
TEST_F(BlimpConnectionTest, DeleteHappyObserversAreOK) {
net::CompletionCallback write_packet_cb;
InSequence s;
EXPECT_CALL(*writer_,
WritePacket(BufferEqualsProto(*CreateInputMessage()), _))
.WillOnce(SaveArg<1>(&write_packet_cb))
.RetiresOnSaturation();
EXPECT_CALL(error_observer1_, OnConnectionError(net::ERR_FAILED))
.WillOnce(testing::InvokeWithoutArgs(
this, &BlimpConnectionTest::DropConnection));
BlimpMessageProcessor* sender = connection_->GetOutgoingMessageProcessor();
net::TestCompletionCallback complete_cb_1;
sender->ProcessMessage(CreateInputMessage(), complete_cb_1.callback());
base::ResetAndReturn(&write_packet_cb).Run(net::ERR_FAILED);
EXPECT_EQ(net::ERR_FAILED, complete_cb_1.WaitForResult());
}
// Verifies that a ReadPacket error causes ErrorObservers to be notified.
TEST_F(BlimpConnectionTest, ReadPacketErrorInvokesErrorObservers) {
scoped_refptr<net::GrowableIOBuffer> read_packet_buffer;
net::CompletionCallback read_packet_cb;
EXPECT_CALL(*reader_, ReadPacket(_, _))
.WillOnce(
DoAll(SaveArg<0>(&read_packet_buffer), SaveArg<1>(&read_packet_cb)))
.RetiresOnSaturation();
EXPECT_CALL(error_observer1_, OnConnectionError(net::ERR_FAILED));
EXPECT_CALL(error_observer2_, OnConnectionError(net::ERR_FAILED));
EXPECT_CALL(error_observer3_, OnConnectionError(_)).Times(0);
EXPECT_CALL(receiver_, MockableProcessMessage(_, _)).Times(0);
// Trigger the first ReadPacket() call by setting the MessageProcessor.
connection_->SetIncomingMessageProcessor(&receiver_);
EXPECT_TRUE(read_packet_buffer);
EXPECT_FALSE(read_packet_cb.is_null());
// Signal an error back from the ReadPacket operation.
base::ResetAndReturn(&read_packet_cb).Run(net::ERR_FAILED);
}
// Verifies that EndConnection messages received from the peer are
// routed through to registered ConnectionErrorObservers as errors.
TEST_F(BlimpConnectionTest, EndConnectionInvokesErrorObservers) {
scoped_refptr<net::GrowableIOBuffer> read_packet_buffer;
net::CompletionCallback read_packet_cb;
EXPECT_CALL(*reader_, ReadPacket(_, _))
.WillOnce(
DoAll(SaveArg<0>(&read_packet_buffer), SaveArg<1>(&read_packet_cb)))
.WillOnce(Return())
.RetiresOnSaturation();
EXPECT_CALL(error_observer1_,
OnConnectionError(EndConnectionMessage::PROTOCOL_MISMATCH));
EXPECT_CALL(error_observer2_,
OnConnectionError(EndConnectionMessage::PROTOCOL_MISMATCH));
EXPECT_CALL(error_observer3_, OnConnectionError(_)).Times(0);
EXPECT_CALL(receiver_, MockableProcessMessage(_, _)).Times(0);
// Trigger the first ReadPacket() call by setting the MessageProcessor.
connection_->SetIncomingMessageProcessor(&receiver_);
EXPECT_TRUE(read_packet_buffer);
EXPECT_FALSE(read_packet_cb.is_null());
// Create an EndConnection message to return from ReadPacket.
std::unique_ptr<BlimpMessage> message =
CreateEndConnectionMessage(EndConnectionMessage::PROTOCOL_MISMATCH);
// Put the EndConnection message in the buffer and invoke the read callback.
read_packet_buffer->SetCapacity(message->ByteSize());
ASSERT_TRUE(message->SerializeToArray(read_packet_buffer->data(),
message->GetCachedSize()));
base::ResetAndReturn(&read_packet_cb).Run(message->ByteSize());
}
} // namespace
} // namespace blimp