Change the expand_path method in file_utils.py to throw an error if an empty file path is provided instead of expanding it to current working directory

monkey/common/utils/file_utils.py

@@ -1,5 +1,11 @@
 import os
 
 
+class InvalidPath(Exception):
+    pass
+
+
 def expand_path(path: str) -> str:
+    if not path:
+        raise InvalidPath("Empty path provided")
     return os.path.expandvars(os.path.expanduser(path))

monkey/tests/unit_tests/common/utils/test_common_file_utils.py

@@ -1,6 +1,8 @@
 import os
 
-from common.utils.file_utils import expand_path
+import pytest
+
+from common.utils.file_utils import InvalidPath, expand_path
 
 
 def test_expand_user(patched_home_env):
@@ -15,3 +17,8 @@ def test_expand_vars(patched_home_env):
     expected_path = os.path.join(patched_home_env, "test")
 
     assert expand_path(input_path) == expected_path
+
+
+def test_expand_path__empty_path_provided():
+    with pytest.raises(InvalidPath):
+        expand_path("")