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/*
* Copyright 2018 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 "packet.h"
#include <android-base/silent_death_test.h>
#include <gtest/gtest.h>
#include "packet_test_common.h"
#include "test_packets.h"
namespace bluetooth {
// Test making a packet from another packet. The new packet should have the
// same payload bounds as the old packet.
TEST(PacketTest, newPacketFromPacketTest) {
// Create a packet with payload bounds
auto packet = TestPacket::Make(
test_avctp_data, test_avctp_data_payload_offset, test_avctp_data.size());
// Create packet from bounded packet
auto new_packet = TestPacket::Make(packet);
// Check to see if the new packet is bounded by the payload of the old packet
auto it = new_packet->begin();
for (size_t i = 0; i < test_avrcp_data.size(); i++) {
ASSERT_EQ(test_avrcp_data[i], *it++);
}
}
// Test that the correct payload length is returned
TEST(PacketTest, sizeTest) {
auto packet = TestPacket::Make(test_avctp_data);
ASSERT_EQ(packet->size(), test_avctp_data.size());
packet = TestPacket::Make(test_avctp_data, test_avctp_data_payload_offset,
test_avctp_data.size());
ASSERT_EQ(packet->size(), test_avrcp_data.size());
}
// Test the array access operator
TEST(PacketTest, arrayAccessTest) {
auto packet = TestPacket::Make(test_l2cap_data);
for (size_t i = 0; i < test_l2cap_data.size(); i++) {
ASSERT_EQ(test_l2cap_data[i], (*packet)[i]);
}
packet = TestPacket::Make(test_avctp_data, test_avctp_data_payload_offset,
test_avctp_data.size());
for (size_t i = 0; i < test_avrcp_data.size(); i++) {
ASSERT_EQ(test_avrcp_data[i], (*packet)[i]);
}
}
// Test that accessing past the end of the defined payload dies
TEST(PacketDeathTest, arrayAccessDeathTest) {
auto packet =
TestPacket::Make(test_l2cap_data, 3, test_l2cap_data.size() - 2);
// this will silent SIGABRT sent in ASSERT_DEATH below
ScopedSilentDeath _silentDeath;
ASSERT_DEATH((*packet)[test_l2cap_data.size()], "");
}
// Test that the iterator and array access operator return the same data
TEST(PacketTest, iteratorTest) {
auto packet = TestPacket::Make(
test_avctp_data, test_avctp_data_payload_offset, test_avctp_data.size());
// Check to see if the data matches
auto it = packet->begin();
for (size_t i = 0; i < packet->size(); i++) {
ASSERT_EQ((*packet)[i], *it++);
}
// Check to see if the iterator points to the end of the data
ASSERT_EQ(it, packet->end());
}
class ChildTestPacket : public TestPacket {
public:
using TestPacket::TestPacket;
std::string ToString() const override { return "ChildTestPacket"; };
};
// Test specializing a packet to another packet type
TEST(PacketTest, specializeTest) {
auto packet = TestPacket::Make(test_l2cap_data);
std::shared_ptr<ChildTestPacket> specialized_packet =
Packet::Specialize<ChildTestPacket>(packet);
// Test that the new packet is an instance of ChildTestPacket
ASSERT_EQ(specialized_packet->ToString(), "ChildTestPacket");
// Test that the underlying data is the same and no copy took place
ASSERT_EQ(&specialized_packet->GetData(), &packet->GetData());
}
// Test that when the packet goes out of scope, that the underlying memory is
// freed
TEST(PacketTest, memoryFreeTest) {
auto packet = TestPacket::Make(test_l2cap_data);
std::weak_ptr<std::vector<uint8_t>> data_ptr(packet->GetDataPointer());
ASSERT_FALSE(data_ptr.expired());
packet.reset();
ASSERT_TRUE(data_ptr.expired());
}
} // namespace bluetooth
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