Imported Debian patch 4.8.10-2

ipatests/pytest_ipa/deprecated_frameworks.py

@@ -0,0 +1,65 @@
+#
+# Copyright (C) 2019  FreeIPA Contributors see COPYING for license
+#
+
+"""Warns about xunit/unittest/nose tests.
+
+FreeIPA is a rather old project and hereby includes all the most
+famous in the past and present Python test idioms. Of course,
+this is difficult to play around all of them. For now, the runner
+of the IPA's test suite is Pytest.
+
+Pytest supports xunit style setups, unittest, nose tests. But this
+support is limited and may be dropped in the future releases.
+Worst of all is that the mixing of various test frameworks results
+in weird conflicts and of course, is not widely tested. In other
+words, there is a big risk. To eliminate this risk and to not pin
+Pytest to 3.x branch IPA's tests were refactored.
+
+This plugin is intended to issue warnings on collecting tests,
+which employ unittest/nose frameworks or xunit style.
+
+To treat these warnings as errors it's enough to run Pytest with:
+
+-W error:'xunit style is deprecated':pytest.PytestIPADeprecationWarning
+
+"""
+from unittest import TestCase
+
+from ipatests.conftest import PytestIPADeprecationWarning
+
+forbidden_module_scopes = [
+    'setup_module',
+    'setup_function',
+    'teardown_module',
+    'teardown_function',
+]
+
+forbidden_class_scopes = [
+    'setup_class',
+    'setup_method',
+    'teardown_class',
+    'teardown_method',
+]
+
+
+def pytest_collection_finish(session):
+    for item in session.items:
+        cls = getattr(item, 'cls', None)
+        if cls is not None and issubclass(cls, TestCase):
+            item.warn(PytestIPADeprecationWarning(
+                "unittest is deprecated in favour of fixtures style"))
+            continue
+
+        def xunit_depr_warn(item, attr, names):
+            for n in names:
+                obj = getattr(item, attr, None)
+                method = getattr(obj, n, None)
+                fixtured = hasattr(method, '__pytest_wrapped__')
+                if method is not None and not fixtured:
+                    item.warn(PytestIPADeprecationWarning(
+                        "xunit style is deprecated in favour of "
+                        "fixtures style"))
+
+        xunit_depr_warn(item, 'module', forbidden_module_scopes)
+        xunit_depr_warn(item, 'cls', forbidden_class_scopes)