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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/iforward_tsn_chunk.h"
#include <stdint.h>
#include <type_traits>
#include <vector>
#include "api/array_view.h"
#include "net/dcsctp/packet/chunk/forward_tsn_common.h"
#include "net/dcsctp/testing/testing_macros.h"
#include "rtc_base/gunit.h"
#include "test/gmock.h"
namespace dcsctp {
namespace {
using ::testing::ElementsAre;
TEST(IForwardTsnChunkTest, FromCapture) {
/*
I_FORWARD_TSN chunk(Cumulative TSN: 3094631148)
Chunk type: I_FORWARD_TSN (194)
Chunk flags: 0x00
Chunk length: 16
New cumulative TSN: 3094631148
Stream identifier: 1
Flags: 0x0000
Message identifier: 2
*/
uint8_t data[] = {0xc2, 0x00, 0x00, 0x10, 0xb8, 0x74, 0x52, 0xec,
0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02};
ASSERT_HAS_VALUE_AND_ASSIGN(IForwardTsnChunk chunk,
IForwardTsnChunk::Parse(data));
EXPECT_EQ(*chunk.new_cumulative_tsn(), 3094631148u);
EXPECT_THAT(chunk.skipped_streams(),
ElementsAre(IForwardTsnChunk::SkippedStream(
IsUnordered(false), StreamID(1), MID(2))));
}
TEST(IForwardTsnChunkTest, SerializeAndDeserialize) {
IForwardTsnChunk chunk(
TSN(123), {IForwardTsnChunk::SkippedStream(IsUnordered(false),
StreamID(1), MID(23)),
IForwardTsnChunk::SkippedStream(IsUnordered(true),
StreamID(42), MID(99))});
std::vector<uint8_t> serialized;
chunk.SerializeTo(serialized);
ASSERT_HAS_VALUE_AND_ASSIGN(IForwardTsnChunk deserialized,
IForwardTsnChunk::Parse(serialized));
EXPECT_EQ(*deserialized.new_cumulative_tsn(), 123u);
EXPECT_THAT(deserialized.skipped_streams(),
ElementsAre(IForwardTsnChunk::SkippedStream(IsUnordered(false),
StreamID(1), MID(23)),
IForwardTsnChunk::SkippedStream(
IsUnordered(true), StreamID(42), MID(99))));
EXPECT_EQ(deserialized.ToString(), "I-FORWARD-TSN, new_cumulative_tsn=123");
}
} // namespace
} // namespace dcsctp