1 files changed, 59 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/packet/error_cause/missing_mandatory_parameter_cause_test.cc b/third_party/libwebrtc/net/dcsctp/packet/error_cause/missing_mandatory_parameter_cause_test.cc
new file mode 100644
index 0000000000..1c526ff0e2
--- /dev/null
+++ b/third_party/libwebrtc/net/dcsctp/packet/error_cause/missing_mandatory_parameter_cause_test.cc
@@ -0,0 +1,59 @@
+/*
+ *  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/error_cause/missing_mandatory_parameter_cause.h"
+
+#include <stdint.h>
+
+#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;
+using ::testing::IsEmpty;
+
+TEST(MissingMandatoryParameterCauseTest, SerializeAndDeserialize) {
+  uint16_t parameter_types[] = {1, 2, 3};
+  MissingMandatoryParameterCause parameter(parameter_types);
+
+  std::vector<uint8_t> serialized;
+  parameter.SerializeTo(serialized);
+
+  ASSERT_HAS_VALUE_AND_ASSIGN(
+      MissingMandatoryParameterCause deserialized,
+      MissingMandatoryParameterCause::Parse(serialized));
+
+  EXPECT_THAT(deserialized.missing_parameter_types(), ElementsAre(1, 2, 3));
+}
+
+TEST(MissingMandatoryParameterCauseTest, HandlesDeserializeZeroParameters) {
+  uint8_t serialized[] = {0, 2, 0, 8, 0, 0, 0, 0};
+
+  ASSERT_HAS_VALUE_AND_ASSIGN(
+      MissingMandatoryParameterCause deserialized,
+      MissingMandatoryParameterCause::Parse(serialized));
+
+  EXPECT_THAT(deserialized.missing_parameter_types(), IsEmpty());
+}
+
+TEST(MissingMandatoryParameterCauseTest, HandlesOverflowParameterCount) {
+  // 0x80000004 * 2 = 2**32 + 8 -> if overflow, would validate correctly.
+  uint8_t serialized[] = {0, 2, 0, 8, 0x80, 0x00, 0x00, 0x04};
+
+  EXPECT_FALSE(MissingMandatoryParameterCause::Parse(serialized).has_value());
+}
+
+}  // namespace
+}  // namespace dcsctp