Catch non existing config file.

RasaHQ · Jun 11, 2019 · 7420ce2 · 7420ce2
1 parent 5d435ad
commit 7420ce2
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Showing 2 changed files with 14 additions and 0 deletions.
diff --git a/rasa/cli/train.py b/rasa/cli/train.py
@@ -1,4 +1,5 @@
 import argparse
+import os
 import tempfile
 from typing import List, Optional, Text, Dict
 import rasa.cli.arguments as arguments
@@ -182,6 +183,14 @@ def _get_valid_config(
     if config:
         # config is provided via '-c' argument. config file needs to contain
         # all mandatory keys
+        if not os.path.exists(config):
+            print_error(
+                "The config file '{}' does not exist. Use '--config' to specify a "
+                "valid config file."
+                "".format(config)
+            )
+            exit(1)
+
         missing_keys = missing_config_keys(config, mandatory_keys)
         if missing_keys:
             print_error(

diff --git a/tests/cli/test_rasa_train.py b/tests/cli/test_rasa_train.py
@@ -284,3 +284,8 @@ def test_get_valid_config(parameters):
         if expected_data is not None:
             for k, v in expected_data.items():
                 assert config_data[k] == v
+
+
+def test_get_valid_config_with_non_existing_file():
+    with pytest.raises(SystemExit):
+        _get_valid_config("non-existing-file.yml", CONFIG_MANDATORY_KEYS)