1 files changed, 73 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/packet/chunk/iforward_tsn_chunk_test.cc b/third_party/libwebrtc/net/dcsctp/packet/chunk/iforward_tsn_chunk_test.cc
new file mode 100644
index 0000000000..6a89433be1
--- /dev/null
+++ b/third_party/libwebrtc/net/dcsctp/packet/chunk/iforward_tsn_chunk_test.cc
@@ -0,0 +1,73 @@
+/*
+ *  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