Add assert for failure to open a file in FastSerializer. (#16178)

diff --git a/src/vm/fastserializer.cpp b/src/vm/fastserializer.cpp
index 66fce30..2e2939a 100644 (file)
--- a/src/vm/fastserializer.cpp
+++ b/src/vm/fastserializer.cpp
@@ -24,6 +24,7 @@ FastSerializer::FastSerializer(SString &outputFilePath, FastSerializableObject &
     m_pFileStream = new CFileStream();
     if(FAILED(m_pFileStream->OpenForWrite(outputFilePath)))
     {
+        _ASSERTE(!"Unable to open file for write.");
         delete(m_pFileStream);
         m_pFileStream = NULL;
         return;