Update FuzzerStunPacket.cpp

worker/fuzzer/src/RTC/FuzzerStunPacket.cpp

@@ -1,6 +1,9 @@
 #include "RTC/FuzzerStunPacket.hpp"
 #include "RTC/StunPacket.hpp"
 
+static constexpr size_t StunSerializeBufferSize{ 65536 };
+thread_local static uint8_t StunSerializeBuffer[StunSerializeBufferSize];
+
 void Fuzzer::RTC::StunPacket::Fuzz(const uint8_t* data, size_t len)
 {
 	if (!::RTC::StunPacket::IsStun(data, len))
@@ -21,6 +24,7 @@ void Fuzzer::RTC::StunPacket::Fuzz(const uint8_t* data, size_t len)
 	packet->GetData();
 	packet->GetSize();
 	packet->SetUsername("foo", 3);
+	packet->SetPassword("lalala");
 	packet->SetPriority(123);
 	packet->SetIceControlling(123);
 	packet->SetIceControlled(123);
@@ -37,13 +41,21 @@ void Fuzzer::RTC::StunPacket::Fuzz(const uint8_t* data, size_t len)
 	packet->GetErrorCode();
 	packet->HasMessageIntegrity();
 	packet->HasFingerprint();
-	packet->CheckAuthentication("foo", "bar");
-	// TODO: packet->CreateSuccessResponse(); // This cannot be easily tested.
-	// TODO: packet->CreateErrorResponse(); // This cannot be easily tested.
-	packet->Authenticate("lalala");
-	// TODO: Cannot test Serialize() because we don't know the exact required
-	// buffer size (setters above may change the total size).
-	// TODO: packet->Serialize();
+	packet->CheckAuthentication("foo", "bar", "xxx");
+
+	if (packet->GetClass() == ::RTC::StunPacket::Class::REQUEST)
+	{
+		auto* successResponse = packet->CreateSuccessResponse();
+		auto* errorResponse = packet->CreateErrorResponse(444);
+
+		delete successResponse;
+		delete errorResponse;
+	}
+
+	if (len < StunSerializeBufferSize - 1000)
+	{
+		packet->Serialize(StunSerializeBuffer);
+	}
 
 	delete packet;
 }