diff --git a/test/helpers.cpp b/test/helpers.cpp
index b4c46a90d2c..e363c1266dd 100644
--- a/test/helpers.cpp
+++ b/test/helpers.cpp
@@ -51,6 +51,8 @@ ScopedFile::ScopedFile(std::string name, const std::string &content, std::string
     , mFullPath(Path::join(mPath, mName))
 {
     if (!mPath.empty() && mPath != Path::getCurrentPath()) {
+        if (Path::isDirectory(mPath))
+            throw std::runtime_error("ScopedFile(" + mFullPath + ") - directory already exists");
 #ifdef _WIN32
         if (!CreateDirectoryA(mPath.c_str(), nullptr))
             throw std::runtime_error("ScopedFile(" + mFullPath + ") - could not create directory");
@@ -60,6 +62,9 @@ ScopedFile::ScopedFile(std::string name, const std::string &content, std::string
 #endif
     }
 
+    if (Path::isFile(mFullPath))
+        throw std::runtime_error("ScopedFile(" + mFullPath + ") - file already exists");
+
     std::ofstream of(mFullPath);
     if (!of.is_open())
         throw std::runtime_error("ScopedFile(" + mFullPath + ") - could not open file");