Added test and comments

Author: Sylvain MARIE

pytest_cases/case_parametrizer_new.py

@@ -390,6 +390,7 @@ def funcopy(f):
     else:
         if target_in_class:
             # case in module and target in class: create a static method
+            # TODO this is actually never called because host is never the class. To check.
             case_fun = staticmethod(case_fun)
         else:
             # none in class: direct copy

pytest_cases/common_pytest.py

@@ -714,7 +714,12 @@ def inject_host(apply_decorator):
     # return _apply_decorator_with_host_tracking
 
     def apply(test_or_fixture_func):
-        # approximate but far less complex to debug than above !
+        # approximate: always returns the module and not the class :(
+        #
+        # indeed when this is called, the function exists (and its qualname mentions the host class) but the
+        # host class is not yet created in the module, so it is not found by our `get_class_that_defined_method`
+        #
+        # but still ... this is far less complex to debug than the above attempt and it does not yet have side effects..
         container = get_function_host(test_or_fixture_func)
         return apply_decorator(test_or_fixture_func, container)
 

pytest_cases/tests/cases/issues/test_issue_128_2.py

@@ -0,0 +1,20 @@
+from pytest_cases import parametrize_with_cases, fixture
+
+
+class Cases:
+
+    def case_one(self, bird):
+        return "one"
+
+    def case_two(self):
+        return "two"
+
+
+@parametrize_with_cases("v", cases=Cases)
+def test_this_is_failing(v):
+    assert v in ["one", "two"]
+
+
+@fixture
+def bird():
+    return "one_proud_bird"