163 lines
5.0 KiB
C++
163 lines
5.0 KiB
C++
// Copyright 2020 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "cast/streaming/rpc_messenger.h"
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#include <memory>
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#include <string>
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#include <utility>
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#include <vector>
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#include "cast/streaming/remoting.pb.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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using testing::_;
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using testing::Invoke;
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using testing::Return;
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namespace openscreen {
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namespace cast {
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namespace {
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class FakeMessenger {
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public:
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void OnReceivedRpc(std::unique_ptr<RpcMessage> message) {
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received_rpc_ = std::move(message);
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received_count_++;
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}
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void OnSentRpc(const std::vector<uint8_t>& message) {
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EXPECT_TRUE(sent_rpc_.ParseFromArray(message.data(), message.size()));
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sent_count_++;
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}
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int received_count() const { return received_count_; }
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const RpcMessage& received_rpc() const { return *received_rpc_; }
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int sent_count() const { return sent_count_; }
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const RpcMessage& sent_rpc() const { return sent_rpc_; }
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void set_handle(RpcMessenger::Handle handle) { handle_ = handle; }
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RpcMessenger::Handle handle() { return handle_; }
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private:
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std::unique_ptr<RpcMessage> received_rpc_;
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int received_count_ = 0;
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RpcMessage sent_rpc_;
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int sent_count_ = 0;
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RpcMessenger::Handle handle_ = -1;
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};
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} // namespace
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class RpcMessengerTest : public testing::Test {
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protected:
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void SetUp() override {
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fake_messenger_ = std::make_unique<FakeMessenger>();
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ASSERT_FALSE(fake_messenger_->received_count());
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rpc_messenger_ = std::make_unique<RpcMessenger>(
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[p = fake_messenger_.get()](std::vector<uint8_t> message) {
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p->OnSentRpc(message);
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});
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const auto handle = rpc_messenger_->GetUniqueHandle();
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fake_messenger_->set_handle(handle);
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rpc_messenger_->RegisterMessageReceiverCallback(
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handle,
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[p = fake_messenger_.get()](std::unique_ptr<RpcMessage> message) {
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p->OnReceivedRpc(std::move(message));
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});
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}
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void ProcessMessage(const RpcMessage& rpc) {
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std::vector<uint8_t> message(rpc.ByteSizeLong());
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rpc.SerializeToArray(message.data(), message.size());
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rpc_messenger_->ProcessMessageFromRemote(message.data(), message.size());
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}
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std::unique_ptr<FakeMessenger> fake_messenger_;
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std::unique_ptr<RpcMessenger> rpc_messenger_;
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};
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TEST_F(RpcMessengerTest, TestProcessMessageFromRemoteRegistered) {
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RpcMessage rpc;
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rpc.set_handle(fake_messenger_->handle());
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ProcessMessage(rpc);
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ASSERT_EQ(1, fake_messenger_->received_count());
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}
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TEST_F(RpcMessengerTest, TestProcessMessageFromRemoteUnregistered) {
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RpcMessage rpc;
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rpc_messenger_->UnregisterMessageReceiverCallback(fake_messenger_->handle());
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ProcessMessage(rpc);
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ASSERT_EQ(0, fake_messenger_->received_count());
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}
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TEST_F(RpcMessengerTest, CanSendMultipleMessages) {
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for (int i = 0; i < 10; ++i) {
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rpc_messenger_->SendMessageToRemote(RpcMessage{});
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}
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EXPECT_EQ(10, fake_messenger_->sent_count());
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}
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TEST_F(RpcMessengerTest, SendMessageCallback) {
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// Send message for RPC messenger to process.
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RpcMessage sent_rpc;
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sent_rpc.set_handle(fake_messenger_->handle());
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sent_rpc.set_proc(RpcMessage::RPC_R_SETVOLUME);
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sent_rpc.set_double_value(2.3);
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rpc_messenger_->SendMessageToRemote(sent_rpc);
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// Check if received message is identical to the one sent earlier.
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ASSERT_EQ(1, fake_messenger_->sent_count());
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const RpcMessage& message = fake_messenger_->sent_rpc();
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ASSERT_EQ(fake_messenger_->handle(), message.handle());
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ASSERT_EQ(RpcMessage::RPC_R_SETVOLUME, message.proc());
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ASSERT_EQ(2.3, message.double_value());
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}
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TEST_F(RpcMessengerTest, ProcessMessageWithRegisteredHandle) {
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// Send message for RPC messenger to process.
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RpcMessage sent_rpc;
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sent_rpc.set_handle(fake_messenger_->handle());
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sent_rpc.set_proc(RpcMessage::RPC_DS_INITIALIZE);
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sent_rpc.set_integer_value(4004);
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ProcessMessage(sent_rpc);
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// Checks if received message is identical to the one sent earlier.
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ASSERT_EQ(1, fake_messenger_->received_count());
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const RpcMessage& received_rpc = fake_messenger_->received_rpc();
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ASSERT_EQ(fake_messenger_->handle(), received_rpc.handle());
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ASSERT_EQ(RpcMessage::RPC_DS_INITIALIZE, received_rpc.proc());
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ASSERT_EQ(4004, received_rpc.integer_value());
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}
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TEST_F(RpcMessengerTest, ProcessMessageWithUnregisteredHandle) {
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// Send message for RPC messenger to process.
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RpcMessage sent_rpc;
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RpcMessenger::Handle different_handle = fake_messenger_->handle() + 1;
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sent_rpc.set_handle(different_handle);
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sent_rpc.set_proc(RpcMessage::RPC_R_SETVOLUME);
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sent_rpc.set_double_value(4.5);
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ProcessMessage(sent_rpc);
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// We shouldn't have gotten the message since the handle is different.
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ASSERT_EQ(0, fake_messenger_->received_count());
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}
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TEST_F(RpcMessengerTest, Registration) {
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const auto handle = fake_messenger_->handle();
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ASSERT_TRUE(rpc_messenger_->IsRegisteredForTesting(handle));
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rpc_messenger_->UnregisterMessageReceiverCallback(handle);
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ASSERT_FALSE(rpc_messenger_->IsRegisteredForTesting(handle));
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}
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} // namespace cast
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} // namespace openscreen
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