diff --git a/run_rendercv.py b/run_rendercv.py
index 2aea5b8..3dcc487 100644
--- a/run_rendercv.py
+++ b/run_rendercv.py
@@ -1,9 +1,18 @@
 import rendercv.__main__ as rendercv
 
-input_file_path = "personal.yaml"
-rendercv.main(input_file_path)
+# input_file_path = "personal.yaml"
+# rendercv.main(input_file_path)
 
 # This script is equivalent to running the following command in the terminal:
 # python -m rendercv personal.yaml
 # or
-# rendercv personal.yaml
\ No newline at end of file
+# rendercv personal.yaml
+
+from rendercv.data_model import RenderCVDataModel
+
+jsoan = RenderCVDataModel.model_json_schema()
+import json
+# write json to file
+with open("json_schema.json", "w") as f:
+    f.write(json.dumps(jsoan))
+
diff --git a/tests/test_rendering.py b/tests/test_rendering.py
index 562f1b1..6ba11e8 100644
--- a/tests/test_rendering.py
+++ b/tests/test_rendering.py
@@ -518,7 +518,7 @@ class TestRendering(unittest.TestCase):
 
         # Wrong input:
         with self.subTest(msg="Wrong input"):
-            with self.assertRaises(ValueError, msg="Value error didn't raise."):
+            with self.assertRaises(subprocess.CalledProcessError):
                 subprocess.run(
                     [
                         sys.executable,
@@ -526,4 +526,5 @@ class TestRendering(unittest.TestCase):
                         "rendercv",
                         "wrong_input.yaml",
                     ],
+                    check=True,
                 )