1 files changed, 43 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/packet/bounded_byte_reader_test.cc b/third_party/libwebrtc/net/dcsctp/packet/bounded_byte_reader_test.cc
new file mode 100644
index 0000000000..2fb4a86785
--- /dev/null
+++ b/third_party/libwebrtc/net/dcsctp/packet/bounded_byte_reader_test.cc
@@ -0,0 +1,43 @@
+/*
+ *  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_reader.h"
+
+#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(BoundedByteReaderTest, CanLoadData) {
+  uint8_t data[14] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4};
+
+  BoundedByteReader<8> reader(data);
+  EXPECT_EQ(reader.variable_data_size(), 6U);
+  EXPECT_EQ(reader.Load32<0>(), 0x01020304U);
+  EXPECT_EQ(reader.Load32<4>(), 0x05060708U);
+  EXPECT_EQ(reader.Load16<4>(), 0x0506U);
+  EXPECT_EQ(reader.Load8<4>(), 0x05U);
+  EXPECT_EQ(reader.Load8<5>(), 0x06U);
+
+  BoundedByteReader<6> sub = reader.sub_reader<6>(0);
+  EXPECT_EQ(sub.Load16<0>(), 0x0900U);
+  EXPECT_EQ(sub.Load32<0>(), 0x09000102U);
+  EXPECT_EQ(sub.Load16<4>(), 0x0304U);
+
+  EXPECT_THAT(reader.variable_data(), ElementsAre(9, 0, 1, 2, 3, 4));
+}
+
+}  // namespace
+}  // namespace dcsctp