1 files changed, 64 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/packet/chunk/forward_tsn_chunk_test.cc b/third_party/libwebrtc/net/dcsctp/packet/chunk/forward_tsn_chunk_test.cc
new file mode 100644
index 0000000000..51f97f2396
--- /dev/null
+++ b/third_party/libwebrtc/net/dcsctp/packet/chunk/forward_tsn_chunk_test.cc
@@ -0,0 +1,64 @@
+/*
+ *  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/forward_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(ForwardTsnChunkTest, FromCapture) {
+  /*
+  FORWARD_TSN chunk(Cumulative TSN: 1905748778)
+      Chunk type: FORWARD_TSN (192)
+      Chunk flags: 0x00
+      Chunk length: 8
+      New cumulative TSN: 1905748778
+  */
+
+  uint8_t data[] = {0xc0, 0x00, 0x00, 0x08, 0x71, 0x97, 0x6b, 0x2a};
+
+  ASSERT_HAS_VALUE_AND_ASSIGN(ForwardTsnChunk chunk,
+                              ForwardTsnChunk::Parse(data));
+  EXPECT_EQ(*chunk.new_cumulative_tsn(), 1905748778u);
+}
+
+TEST(ForwardTsnChunkTest, SerializeAndDeserialize) {
+  ForwardTsnChunk chunk(
+      TSN(123), {ForwardTsnChunk::SkippedStream(StreamID(1), SSN(23)),
+                 ForwardTsnChunk::SkippedStream(StreamID(42), SSN(99))});
+
+  std::vector<uint8_t> serialized;
+  chunk.SerializeTo(serialized);
+
+  ASSERT_HAS_VALUE_AND_ASSIGN(ForwardTsnChunk deserialized,
+                              ForwardTsnChunk::Parse(serialized));
+  EXPECT_EQ(*deserialized.new_cumulative_tsn(), 123u);
+  EXPECT_THAT(
+      deserialized.skipped_streams(),
+      ElementsAre(ForwardTsnChunk::SkippedStream(StreamID(1), SSN(23)),
+                  ForwardTsnChunk::SkippedStream(StreamID(42), SSN(99))));
+
+  EXPECT_EQ(deserialized.ToString(),
+            "FORWARD-TSN, new_cumulative_tsn=123, skip 1:23, skip 42:99");
+}
+
+}  // namespace
+}  // namespace dcsctp