| /* |
| * Copyright 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "l2cap/internal/le_credit_based_channel_data_controller.h" |
| |
| #include <gtest/gtest.h> |
| |
| #include "l2cap/internal/scheduler_mock.h" |
| #include "l2cap/l2cap_packets.h" |
| #include "packet/raw_builder.h" |
| |
| namespace bluetooth { |
| namespace l2cap { |
| namespace internal { |
| namespace { |
| |
| std::unique_ptr<packet::BasePacketBuilder> CreateSdu(std::vector<uint8_t> payload) { |
| auto raw_builder = std::make_unique<packet::RawBuilder>(); |
| raw_builder->AddOctets(payload); |
| return raw_builder; |
| } |
| |
| PacketView<kLittleEndian> GetPacketView(std::unique_ptr<packet::BasePacketBuilder> packet) { |
| auto bytes = std::make_shared<std::vector<uint8_t>>(); |
| BitInserter i(*bytes); |
| bytes->reserve(packet->size()); |
| packet->Serialize(i); |
| return packet::PacketView<packet::kLittleEndian>(bytes); |
| } |
| |
| void sync_handler(os::Handler* handler) { |
| std::promise<void> promise; |
| auto future = promise.get_future(); |
| handler->Post(common::BindOnce(&std::promise<void>::set_value, common::Unretained(&promise))); |
| auto status = future.wait_for(std::chrono::milliseconds(300)); |
| EXPECT_EQ(status, std::future_status::ready); |
| } |
| |
| class LeCreditBasedDataControllerTest : public ::testing::Test { |
| protected: |
| void SetUp() override { |
| thread_ = new os::Thread("test_thread", os::Thread::Priority::NORMAL); |
| user_handler_ = new os::Handler(thread_); |
| queue_handler_ = new os::Handler(thread_); |
| } |
| |
| void TearDown() override { |
| queue_handler_->Clear(); |
| user_handler_->Clear(); |
| delete queue_handler_; |
| delete user_handler_; |
| delete thread_; |
| } |
| |
| os::Thread* thread_ = nullptr; |
| os::Handler* user_handler_ = nullptr; |
| os::Handler* queue_handler_ = nullptr; |
| }; |
| |
| TEST_F(LeCreditBasedDataControllerTest, transmit_unsegmented) { |
| common::BidiQueue<Scheduler::UpperEnqueue, Scheduler::UpperDequeue> channel_queue{10}; |
| testing::MockScheduler scheduler; |
| LeCreditBasedDataController controller{0x41, 0x41, channel_queue.GetDownEnd(), queue_handler_, &scheduler}; |
| EXPECT_CALL(scheduler, OnPacketsReady(0x41, 1)); |
| controller.OnSdu(CreateSdu({'a', 'b', 'c', 'd'})); |
| auto next_packet = controller.GetNextPacket(); |
| EXPECT_NE(next_packet, nullptr); |
| auto view = GetPacketView(std::move(next_packet)); |
| auto pdu_view = BasicFrameView::Create(view); |
| EXPECT_TRUE(pdu_view.IsValid()); |
| auto first_le_info_view = FirstLeInformationFrameView::Create(pdu_view); |
| EXPECT_TRUE(first_le_info_view.IsValid()); |
| auto payload = first_le_info_view.GetPayload(); |
| std::string data = std::string(payload.begin(), payload.end()); |
| EXPECT_EQ(data, "abcd"); |
| } |
| |
| TEST_F(LeCreditBasedDataControllerTest, transmit_segmented) { |
| common::BidiQueue<Scheduler::UpperEnqueue, Scheduler::UpperDequeue> channel_queue{10}; |
| testing::MockScheduler scheduler; |
| LeCreditBasedDataController controller{0x41, 0x41, channel_queue.GetDownEnd(), queue_handler_, &scheduler}; |
| controller.SetMps(4); |
| EXPECT_CALL(scheduler, OnPacketsReady(0x41, 2)); |
| // Should be divided into 'ab', and 'cd' |
| controller.OnSdu(CreateSdu({'a', 'b', 'c', 'd'})); |
| auto next_packet = controller.GetNextPacket(); |
| EXPECT_NE(next_packet, nullptr); |
| auto view = GetPacketView(std::move(next_packet)); |
| auto pdu_view = BasicFrameView::Create(view); |
| EXPECT_TRUE(pdu_view.IsValid()); |
| auto first_le_info_view = FirstLeInformationFrameView::Create(pdu_view); |
| EXPECT_TRUE(first_le_info_view.IsValid()); |
| auto payload = first_le_info_view.GetPayload(); |
| std::string data = std::string(payload.begin(), payload.end()); |
| EXPECT_EQ(data, "ab"); |
| EXPECT_EQ(first_le_info_view.GetL2capSduLength(), 4); |
| |
| next_packet = controller.GetNextPacket(); |
| EXPECT_NE(next_packet, nullptr); |
| view = GetPacketView(std::move(next_packet)); |
| pdu_view = BasicFrameView::Create(view); |
| EXPECT_TRUE(pdu_view.IsValid()); |
| payload = pdu_view.GetPayload(); |
| data = std::string(payload.begin(), payload.end()); |
| EXPECT_EQ(data, "cd"); |
| } |
| |
| TEST_F(LeCreditBasedDataControllerTest, receive_unsegmented) { |
| common::BidiQueue<Scheduler::UpperEnqueue, Scheduler::UpperDequeue> channel_queue{10}; |
| testing::MockScheduler scheduler; |
| LeCreditBasedDataController controller{0x41, 0x41, channel_queue.GetDownEnd(), queue_handler_, &scheduler}; |
| auto segment = CreateSdu({'a', 'b', 'c', 'd'}); |
| auto builder = FirstLeInformationFrameBuilder::Create(0x41, 4, std::move(segment)); |
| auto base_view = GetPacketView(std::move(builder)); |
| controller.OnPdu(base_view); |
| sync_handler(queue_handler_); |
| auto payload = channel_queue.GetUpEnd()->TryDequeue(); |
| EXPECT_NE(payload, nullptr); |
| std::string data = std::string(payload->begin(), payload->end()); |
| EXPECT_EQ(data, "abcd"); |
| } |
| |
| TEST_F(LeCreditBasedDataControllerTest, receive_segmented) { |
| common::BidiQueue<Scheduler::UpperEnqueue, Scheduler::UpperDequeue> channel_queue{10}; |
| testing::MockScheduler scheduler; |
| LeCreditBasedDataController controller{0x41, 0x41, channel_queue.GetDownEnd(), queue_handler_, &scheduler}; |
| auto segment1 = CreateSdu({'a', 'b', 'c', 'd'}); |
| auto builder1 = FirstLeInformationFrameBuilder::Create(0x41, 7, std::move(segment1)); |
| auto base_view = GetPacketView(std::move(builder1)); |
| controller.OnPdu(base_view); |
| auto segment2 = CreateSdu({'e', 'f', 'g'}); |
| auto builder2 = BasicFrameBuilder::Create(0x41, std::move(segment2)); |
| base_view = GetPacketView(std::move(builder2)); |
| controller.OnPdu(base_view); |
| sync_handler(queue_handler_); |
| auto payload = channel_queue.GetUpEnd()->TryDequeue(); |
| EXPECT_NE(payload, nullptr); |
| std::string data = std::string(payload->begin(), payload->end()); |
| EXPECT_EQ(data, "abcdefg"); |
| } |
| |
| TEST_F(LeCreditBasedDataControllerTest, receive_segmented_with_wrong_sdu_length) { |
| common::BidiQueue<Scheduler::UpperEnqueue, Scheduler::UpperDequeue> channel_queue{10}; |
| testing::MockScheduler scheduler; |
| LeCreditBasedDataController controller{0x41, 0x41, channel_queue.GetDownEnd(), queue_handler_, &scheduler}; |
| auto segment1 = CreateSdu({'a', 'b', 'c', 'd'}); |
| auto builder1 = FirstLeInformationFrameBuilder::Create(0x41, 5, std::move(segment1)); |
| auto base_view = GetPacketView(std::move(builder1)); |
| controller.OnPdu(base_view); |
| auto segment2 = CreateSdu({'e', 'f', 'g'}); |
| auto builder2 = BasicFrameBuilder::Create(0x41, std::move(segment2)); |
| base_view = GetPacketView(std::move(builder2)); |
| controller.OnPdu(base_view); |
| sync_handler(queue_handler_); |
| auto payload = channel_queue.GetUpEnd()->TryDequeue(); |
| EXPECT_EQ(payload, nullptr); |
| } |
| |
| } // namespace |
| } // namespace internal |
| } // namespace l2cap |
| } // namespace bluetooth |