Ignore coverage on code intended never to execute (#82128)

* Ignore coverage on code intended never to execute

* Fail collection loader test if wrong code runs

* Update boilerplate test to accommodate nocover

test/sanity/code-smell/boilerplate.py

@@ -17,7 +17,7 @@ def main():
         invalid_future = []
 
         for text in lines:
-            if text == b'from __future__ import annotations':
+            if text in (b'from __future__ import annotations', b'from __future__ import annotations  # pragma: nocover'):
                 missing = False
                 break
 

test/units/utils/collection_loader/fixtures/collections/ansible_collections/ansible/builtin/plugins/modules/shouldnotload.py

@@ -1,3 +1,3 @@
-from __future__ import annotations
+from __future__ import annotations  # pragma: nocover
 
-raise Exception('this module should never be loaded')
+raise Exception('this module should never be loaded')  # pragma: nocover

test/units/utils/collection_loader/fixtures/collections/ansible_collections/testns/testcoll/plugins/action/my_action.py

@@ -4,4 +4,4 @@ from ..module_utils.my_util import question  # pylint: disable=unused-import
 
 
 def action_code():
-    return "hello from my_action.py"
+    raise Exception('hello from my_action.py, this code should never execute')  # pragma: nocover

test/units/utils/collection_loader/fixtures/collections/ansible_collections/testns/testcoll/plugins/modules/__init__.py

@@ -1,4 +1,4 @@
-from __future__ import annotations
+from __future__ import annotations  # pragma: nocover
 
 
-raise Exception('this should never run')
+raise Exception('this should never run')  # pragma: nocover

test/units/utils/collection_loader/fixtures/collections/ansible_collections/testns/testcoll/plugins/modules/amodule.py

@@ -1,5 +1,4 @@
-from __future__ import annotations
+from __future__ import annotations  # pragma: nocover
 
 
-def module_code():
-    return "hello from amodule.py"
+raise Exception('hello from amodule.py, this code should never execute')  # pragma: nocover

test/units/utils/collection_loader/fixtures/collections_masked/ansible_collections/__init__.py

@@ -1,4 +1,4 @@
-from __future__ import annotations
+from __future__ import annotations  # pragma: nocover
 
 
-raise Exception('this code should never execute')
+raise Exception('this code should never execute')  # pragma: nocover

test/units/utils/collection_loader/fixtures/collections_masked/ansible_collections/ansible/__init__.py

@@ -1,4 +1,4 @@
-from __future__ import annotations
+from __future__ import annotations  # pragma: nocover
 
 
-raise Exception('this code should never execute')
+raise Exception('this code should never execute')  # pragma: nocover

test/units/utils/collection_loader/fixtures/collections_masked/ansible_collections/testns/testcoll/__init__.py

@@ -1,4 +1,4 @@
-from __future__ import annotations
+from __future__ import annotations  # pragma: nocover
 
 
-raise Exception('this code should never execute')
+raise Exception('this code should never execute')  # pragma: nocover