attempt for doing camel case check in all classes (#1385)

Co-authored-by: Hayden Hohns <[email protected]>

tests/tests_unit/test_meta.py

@@ -1,5 +1,13 @@
+import inspect
 from pathlib import Path
 
+import pytest
+
+from cognite.client.data_classes._base import CogniteResource, CogniteResourceList
+from tests.utils import all_subclasses
+
+ALL_FILEPATHS = Path("cognite/client/").rglob("*.py")
+
 
 def test_assert_no_root_init_file():
     # We have an implicit namespace package under the namespace package directory: 'cognite'.
@@ -19,10 +27,18 @@ def keep(path):
         ]
         return all(skip not in str(path.as_posix()) for skip in skip_list)
 
-    all_filepaths = Path("cognite/client/").glob("**/*.py")
     err_msg = "File: '{}' is missing 'from __future__ import annotations' at line=0"
-
-    for filepath in filter(keep, all_filepaths):
+    for filepath in filter(keep, ALL_FILEPATHS):
         with filepath.open("r") as file:
             # We just read the first line from each file:
             assert file.readline() == "from __future__ import annotations\n", err_msg.format(filepath)
+
+
+@pytest.mark.parametrize("cls", [CogniteResource, CogniteResourceList])
+def test_ensure_all_to_pandas_methods_use_snake_case(cls):
+    err_msg = "Class: '{}' for method to_pandas does not default camel_case parameter to False."
+    for sub_cls in all_subclasses(cls):
+        if not (cls_method := getattr(sub_cls, "to_pandas", False)):
+            continue
+        if param := inspect.signature(cls_method).parameters.get("camel_case"):
+            assert param.default is False, err_msg.format(sub_cls.__name__)