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/*
* Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "net/dcsctp/packet/chunk/reconfig_chunk.h"
#include <cstdint>
#include <type_traits>
#include <vector>
#include "api/array_view.h"
#include "net/dcsctp/packet/parameter/outgoing_ssn_reset_request_parameter.h"
#include "net/dcsctp/packet/parameter/parameter.h"
#include "net/dcsctp/packet/tlv_trait.h"
#include "net/dcsctp/testing/testing_macros.h"
#include "rtc_base/gunit.h"
#include "test/gmock.h"
namespace dcsctp {
namespace {
using ::testing::ElementsAre;
using ::testing::SizeIs;
TEST(ReConfigChunkTest, FromCapture) {
/*
RE_CONFIG chunk
Chunk type: RE_CONFIG (130)
Chunk flags: 0x00
Chunk length: 22
Outgoing SSN reset request parameter
Parameter type: Outgoing SSN reset request (0x000d)
Parameter length: 18
Re-configuration request sequence number: 2270550051
Re-configuration response sequence number: 1905748638
Senders last assigned TSN: 2270550066
Stream Identifier: 6
Chunk padding: 0000
*/
uint8_t data[] = {0x82, 0x00, 0x00, 0x16, 0x00, 0x0d, 0x00, 0x12,
0x87, 0x55, 0xd8, 0x23, 0x71, 0x97, 0x6a, 0x9e,
0x87, 0x55, 0xd8, 0x32, 0x00, 0x06, 0x00, 0x00};
ASSERT_HAS_VALUE_AND_ASSIGN(ReConfigChunk chunk, ReConfigChunk::Parse(data));
const Parameters& parameters = chunk.parameters();
EXPECT_THAT(parameters.descriptors(), SizeIs(1));
ParameterDescriptor desc = parameters.descriptors()[0];
ASSERT_EQ(desc.type, OutgoingSSNResetRequestParameter::kType);
ASSERT_HAS_VALUE_AND_ASSIGN(
OutgoingSSNResetRequestParameter req,
OutgoingSSNResetRequestParameter::Parse(desc.data));
EXPECT_EQ(*req.request_sequence_number(), 2270550051u);
EXPECT_EQ(*req.response_sequence_number(), 1905748638u);
EXPECT_EQ(*req.sender_last_assigned_tsn(), 2270550066u);
EXPECT_THAT(req.stream_ids(), ElementsAre(StreamID(6)));
}
TEST(ReConfigChunkTest, SerializeAndDeserialize) {
Parameters::Builder params_builder =
Parameters::Builder().Add(OutgoingSSNResetRequestParameter(
ReconfigRequestSN(123), ReconfigRequestSN(456), TSN(789),
{StreamID(42), StreamID(43)}));
ReConfigChunk chunk(params_builder.Build());
std::vector<uint8_t> serialized;
chunk.SerializeTo(serialized);
ASSERT_HAS_VALUE_AND_ASSIGN(ReConfigChunk deserialized,
ReConfigChunk::Parse(serialized));
const Parameters& parameters = deserialized.parameters();
EXPECT_THAT(parameters.descriptors(), SizeIs(1));
ParameterDescriptor desc = parameters.descriptors()[0];
ASSERT_EQ(desc.type, OutgoingSSNResetRequestParameter::kType);
ASSERT_HAS_VALUE_AND_ASSIGN(
OutgoingSSNResetRequestParameter req,
OutgoingSSNResetRequestParameter::Parse(desc.data));
EXPECT_EQ(*req.request_sequence_number(), 123u);
EXPECT_EQ(*req.response_sequence_number(), 456u);
EXPECT_EQ(*req.sender_last_assigned_tsn(), 789u);
EXPECT_THAT(req.stream_ids(), ElementsAre(StreamID(42), StreamID(43)));
EXPECT_EQ(deserialized.ToString(), "RE-CONFIG");
}
} // namespace
} // namespace dcsctp
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