1 files changed, 74 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/packet/chunk/data_chunk_test.cc b/third_party/libwebrtc/net/dcsctp/packet/chunk/data_chunk_test.cc
new file mode 100644
index 0000000000..def99ceb23
--- /dev/null
+++ b/third_party/libwebrtc/net/dcsctp/packet/chunk/data_chunk_test.cc
@@ -0,0 +1,74 @@
+/*
+ *  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/data_chunk.h"
+
+#include <cstdint>
+#include <type_traits>
+#include <vector>
+
+#include "api/array_view.h"
+#include "net/dcsctp/testing/testing_macros.h"
+#include "rtc_base/gunit.h"
+#include "test/gmock.h"
+
+namespace dcsctp {
+namespace {
+using ::testing::ElementsAre;
+
+TEST(DataChunkTest, FromCapture) {
+  /*
+  DATA chunk(ordered, complete segment, TSN: 1426601532, SID: 2, SSN: 1,
+    PPID: 53, payload length: 4 bytes)
+      Chunk type: DATA (0)
+      Chunk flags: 0x03
+      Chunk length: 20
+      Transmission sequence number: 1426601532
+      Stream identifier: 0x0002
+      Stream sequence number: 1
+      Payload protocol identifier: WebRTC Binary (53)
+  */
+
+  uint8_t data[] = {0x00, 0x03, 0x00, 0x14, 0x55, 0x08, 0x36, 0x3c, 0x00, 0x02,
+                    0x00, 0x01, 0x00, 0x00, 0x00, 0x35, 0x00, 0x01, 0x02, 0x03};
+
+  ASSERT_HAS_VALUE_AND_ASSIGN(DataChunk chunk, DataChunk::Parse(data));
+  EXPECT_EQ(*chunk.tsn(), 1426601532u);
+  EXPECT_EQ(*chunk.stream_id(), 2u);
+  EXPECT_EQ(*chunk.ssn(), 1u);
+  EXPECT_EQ(*chunk.ppid(), 53u);
+  EXPECT_TRUE(*chunk.options().is_beginning);
+  EXPECT_TRUE(*chunk.options().is_end);
+  EXPECT_FALSE(*chunk.options().is_unordered);
+  EXPECT_FALSE(*chunk.options().immediate_ack);
+  EXPECT_THAT(chunk.payload(), ElementsAre(0x0, 0x1, 0x2, 0x3));
+}
+
+TEST(DataChunkTest, SerializeAndDeserialize) {
+  DataChunk chunk(TSN(123), StreamID(456), SSN(789), PPID(9090),
+                  /*payload=*/{1, 2, 3, 4, 5},
+                  /*options=*/{});
+
+  std::vector<uint8_t> serialized;
+  chunk.SerializeTo(serialized);
+
+  ASSERT_HAS_VALUE_AND_ASSIGN(DataChunk deserialized,
+                              DataChunk::Parse(serialized));
+  EXPECT_EQ(*chunk.tsn(), 123u);
+  EXPECT_EQ(*chunk.stream_id(), 456u);
+  EXPECT_EQ(*chunk.ssn(), 789u);
+  EXPECT_EQ(*chunk.ppid(), 9090u);
+  EXPECT_THAT(chunk.payload(), ElementsAre(1, 2, 3, 4, 5));
+
+  EXPECT_EQ(deserialized.ToString(),
+            "DATA, type=ordered::middle, tsn=123, sid=456, ssn=789, ppid=9090, "
+            "length=5");
+}
+}  // namespace
+}  // namespace dcsctp