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      1 /*
      2  * Copyright 2018 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include <gtest/gtest.h>
     18 
     19 #include "avrcp_packet.h"
     20 #include "avrcp_test_packets.h"
     21 #include "packet_test_helper.h"
     22 
     23 namespace bluetooth {
     24 
     25 // A helper class that has public accessors to protected methods
     26 class TestPacketBuilder : public PacketBuilder {
     27  public:
     28   static std::unique_ptr<TestPacketBuilder> MakeBuilder(
     29       std::vector<uint8_t> data) {
     30     std::unique_ptr<TestPacketBuilder> builder(new TestPacketBuilder(data));
     31     return builder;
     32   };
     33 
     34   // Make all the utility functions public
     35   using PacketBuilder::ReserveSpace;
     36   using PacketBuilder::AddPayloadOctets1;
     37   using PacketBuilder::AddPayloadOctets2;
     38   using PacketBuilder::AddPayloadOctets3;
     39   using PacketBuilder::AddPayloadOctets4;
     40   using PacketBuilder::AddPayloadOctets6;
     41   using PacketBuilder::AddPayloadOctets8;
     42 
     43   size_t size() const override { return data_.size(); };
     44 
     45   bool Serialize(const std::shared_ptr<Packet>& pkt) override {
     46     ReserveSpace(pkt, size());
     47 
     48     for (uint8_t byte : data_) {
     49       AddPayloadOctets1(pkt, byte);
     50     }
     51 
     52     return true;
     53   }
     54 
     55   TestPacketBuilder(std::vector<uint8_t> data) : data_(data){};
     56 
     57   std::vector<uint8_t> data_;
     58 };
     59 
     60 namespace avrcp {
     61 
     62 using TestAvrcpPacket = TestPacketType<Packet>;
     63 
     64 TEST(AvrcpPacketBuilderTest, buildPacketTest) {
     65   std::vector<uint8_t> get_capabilities_request_payload = {
     66       0x00, 0x19, 0x58, 0x10, 0x00, 0x00, 0x01, 0x03};
     67   auto cap_req_builder =
     68       TestPacketBuilder::MakeBuilder(get_capabilities_request_payload);
     69 
     70   auto builder = PacketBuilder::MakeBuilder(
     71       CType::STATUS, 0x09, 0x00, Opcode::VENDOR, std::move(cap_req_builder));
     72 
     73   ASSERT_EQ(builder->size(), get_capabilities_request.size());
     74 
     75   auto test_packet = TestAvrcpPacket::Make();
     76   builder->Serialize(test_packet);
     77   ASSERT_EQ(test_packet->GetData(), get_capabilities_request);
     78 }
     79 
     80 TEST(AvrcpPacketTest, getterTests) {
     81   auto test_avrcp_packet = TestAvrcpPacket::Make(get_capabilities_request);
     82 
     83   ASSERT_EQ(test_avrcp_packet->GetCType(), CType::STATUS);
     84   ASSERT_EQ(test_avrcp_packet->GetSubunitType(), 0x09);
     85   ASSERT_EQ(test_avrcp_packet->GetSubunitId(), 0x00);
     86   ASSERT_EQ(test_avrcp_packet->GetOpcode(), Opcode::VENDOR);
     87 }
     88 
     89 TEST(AvrcpPacketTest, getterMaskTests) {
     90   auto bad_get_cap_data = get_capabilities_request;
     91   bad_get_cap_data[0] = 0xFF;  // CType
     92   bad_get_cap_data[1] = 0xFF;  // Subunit Type & ID
     93 
     94   auto test_avrcp_packet = TestAvrcpPacket::Make(bad_get_cap_data);
     95 
     96   ASSERT_EQ(test_avrcp_packet->GetCType(), CType::INTERIM);
     97   ASSERT_EQ(test_avrcp_packet->GetSubunitType(), 0b00011111);
     98   ASSERT_EQ(test_avrcp_packet->GetSubunitId(), 0b00000111);
     99 }
    100 
    101 TEST(AvrcpPacketTest, payloadBoundsTest) {
    102   auto test_avrcp_packet = TestAvrcpPacket::Make(get_capabilities_request);
    103 
    104   std::vector<uint8_t> get_cap_payload_data = {0x00, 0x19, 0x58, 0x10,
    105                                                0x00, 0x00, 0x01, 0x03};
    106 
    107   auto get_cap_payload_packet = TestAvrcpPacket::Make(test_avrcp_packet);
    108 
    109   // We are unable to do a direct vector compare here as one of the packets is
    110   // a larger vector that only has a segment of data currently visible.
    111   for (size_t i = 0; i < get_cap_payload_data.size(); i++) {
    112     ASSERT_EQ(get_cap_payload_data[i], (*get_cap_payload_packet)[i]);
    113   }
    114 }
    115 
    116 }  // namespace avrcp
    117 }  // namespace bluetooth