1 files changed, 48 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/packet/bounded_byte_writer_test.cc b/third_party/libwebrtc/net/dcsctp/packet/bounded_byte_writer_test.cc
new file mode 100644
index 0000000000..3cea0a2f7c
--- /dev/null
+++ b/third_party/libwebrtc/net/dcsctp/packet/bounded_byte_writer_test.cc
@@ -0,0 +1,48 @@
+/*
+ *  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/bounded_byte_writer.h"
+
+#include <vector>
+
+#include "api/array_view.h"
+#include "rtc_base/buffer.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/gunit.h"
+#include "test/gmock.h"
+
+namespace dcsctp {
+namespace {
+using ::testing::ElementsAre;
+
+TEST(BoundedByteWriterTest, CanWriteData) {
+  std::vector<uint8_t> data(14);
+
+  BoundedByteWriter<8> writer(data);
+  writer.Store32<0>(0x01020304);
+  writer.Store16<4>(0x0506);
+  writer.Store8<6>(0x07);
+  writer.Store8<7>(0x08);
+
+  uint8_t variable_data[] = {0, 0, 0, 0, 3, 0};
+  writer.CopyToVariableData(variable_data);
+
+  BoundedByteWriter<6> sub = writer.sub_writer<6>(0);
+  sub.Store32<0>(0x09000000);
+  sub.Store16<2>(0x0102);
+
+  BoundedByteWriter<2> sub2 = writer.sub_writer<2>(4);
+  sub2.Store8<1>(0x04);
+
+  EXPECT_THAT(data, ElementsAre(1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4));
+}
+
+}  // namespace
+}  // namespace dcsctp