Fixed AttributeError issue in is_case_function when an inspected symbol is a parametrized type hint without __name__

docs/changelog.md

@@ -1,7 +1,9 @@
 # Changelog
 
-### 3.6.14 - bugfix
+### 3.6.14 - bugfixes
 
+ - Fixed `AttributeError` issue in `is_case_function` when an inspected symbol is a parametrized type hint
+   without `__name__`. Fixes [#287](https://github.com/smarie/python-pytest-cases/issues/287)
  - Fixed issue with `get_all_cases`: default value for `cases` was wrong. Fixes [#290](https://github.com/smarie/python-pytest-cases/issues/290)
 
 ### 3.6.13 - bugfix

src/pytest_cases/case_funcs.py

@@ -361,4 +361,8 @@ def is_case_function(f,                       # type: Any
         # a function generated by us. ignore this
         return False
     else:
-        return f.__name__.startswith(prefix) if check_prefix else True
+        try:
+            return f.__name__.startswith(prefix) if check_prefix else True
+        except:
+            # GH#287: safe fallback
+            return False

tests/cases/issues/test_py35_issue_287.py

@@ -0,0 +1,24 @@
+from typing import Tuple
+
+import pytest_cases
+
+
+class Cases:
+    ClassVar1 = int  # OK
+    ClassVar2 = int  # OK
+    ClassVar3 = 1  # OK
+    ClassVar4 = float  # OK
+
+    ClassVar5 = Tuple[int]  # FAILS with AttributeError: __name__
+    # ClassVar6 = Tuple[float]  # FAILS  with AttributeError: __name__
+    # ClassVar7 = List[int]  # FAILS with AttributeError: __name__
+    # ClassVar8 = Any  # FAILS with AttributeError: __name__
+    # ClassVar9 = Dict[int, str]  # FAILS with AttributeError: __name__
+
+    def case_b(self):
+        return 1
+
+
+@pytest_cases.parametrize_with_cases("case", Cases)
+def test_something(case) -> None:
+    pass