diff --git a/api/tests/unit_tests/core/rag/extractor/test_helpers.py b/api/tests/unit_tests/core/rag/extractor/test_helpers.py
new file mode 100644
index 0000000000..edf8735e57
--- /dev/null
+++ b/api/tests/unit_tests/core/rag/extractor/test_helpers.py
@@ -0,0 +1,10 @@
+import tempfile
+
+from core.rag.extractor.helpers import FileEncoding, detect_file_encodings
+
+
+def test_detect_file_encodings() -> None:
+    with tempfile.NamedTemporaryFile(mode="w+t", suffix=".txt") as temp:
+        temp.write("Shared data")
+        temp_path = temp.name
+        assert detect_file_encodings(temp_path) == [FileEncoding(encoding="utf_8", confidence=0.0, language="Unknown")]