fix: 🐛 File Not Found Error when submitting a form whose pdf is not found

Author: marcvergees

src/file_manipulator.py

@@ -43,8 +43,7 @@ def fill_form(self, user_input: str, fields: list, pdf_form_path: str, model: st
         print(f"[2] PDF template path: {pdf_form_path}")
 
         if not os.path.exists(pdf_form_path):
-            print(f"Error: PDF template not found at {pdf_form_path}")
-            return None  # Or raise an exception
+            raise FileNotFoundError(f"PDF template not found at {pdf_form_path}")
 
         print("[3] Starting extraction and PDF filling process...")
         try:

tests/test_api.py

@@ -202,6 +202,17 @@ def test_fill_form_missing_template(self, client, mock_controller):
         })
         assert resp.status_code == 404
 
+    def test_fill_form_template_file_not_found(self, client, mock_controller):
+        tpl_id = self._seed_template(client, mock_controller)
+        mock_controller["form_ctrl"].fill_form.side_effect = FileNotFoundError("PDF template not found")
+
+        resp = client.post("/forms/fill", json={
+            "template_id": tpl_id,
+            "input_text": "some text",
+        })
+        assert resp.status_code == 500
+        assert "PDF template not found" in resp.json()["error"]
+
     def test_fill_form_validates_body(self, client):
         """Missing required fields → 422."""
         resp = client.post("/forms/fill", json={})