pylint_plugins/api_models_test.py ...FFF...                                                                      [100%]

======================================================= FAILURES =======================================================
__________________________________________________ test_copied_schema __________________________________________________

    def test_copied_schema():
        code = """
        import copy
    
        class ActionAPI(object):
            schema = {"properties": {"action": {}}}
    
        class ActionCreateAPI(object):
            schema = copy.deepcopy(ActionAPI.schema)
            schema["properties"]["default_files"] = {}
        """
    
        res = parse(code)
    
        assert isinstance(res, nodes.Module)
    
        class1_node: nodes.ClassDef = res.body[1]
        assert isinstance(class1_node, nodes.ClassDef)
    
        assert "schema" in class1_node.locals
    
        # action property added but not property from the other class
        assert "action" in class1_node.locals
        assert "default_files" not in class1_node.locals
    
        class2_node: nodes.ClassDef = res.body[2]
        assert isinstance(class2_node, nodes.ClassDef)
    
        # action (copied) and default_files (added) properties added
        assert "schema" in class2_node.locals
        assert "action" in class2_node.locals
>       assert "default_files" in class2_node.locals
E       AssertionError: assert 'default_files' in {'__module__': [<Const.str l.7 at 0x7f4ac62056a0>], '__qualname__': [<Const.str l.7 at 0x7f4ac62050a0>], 'action': [<AssignName.action l.7 at 0x7f4ac61ee220>], 'schema': [<AssignName.schema l.8 at 0x7f4ac6205490>]}
E        +  where {'__module__': [<Const.str l.7 at 0x7f4ac62056a0>], '__qualname__': [<Const.str l.7 at 0x7f4ac62050a0>], 'action': [<AssignName.action l.7 at 0x7f4ac61ee220>], 'schema': [<AssignName.schema l.8 at 0x7f4ac6205490>]} = <ClassDef.ActionCreateAPI l.7 at 0x7f4ac6205100>.locals

from collections.abc import Collection
import astroid
from astroid import parse, nodes
import pylint.checkers.typecheck
import api_models
code="""
 
class ActionAPI(object):
     schema = {"properties": {"action": {}}}

class ActionCreateAPI(object):
    schema = copy.deepcopy(ActionAPI.schema)
    schema["properties"]["default_files"] = {}
"""
res=parse(code)
class2_node: nodes.ClassDef = res.body[2]

The test expects res.body[2].locals to contain both action and default_files properties. But the problem is that only action is present, not default_files property.

If I rolled python 3.8 back down to astroid 2.5.6, then the test passes on python3.8 but fails on python3.9. No joy either with astroid 2.5.8, 2.6.1 on python3.9.

Tried on python 3.9 astroid           2.8.6, pylint            2.11.1. With that combination still get the missing default_files property, but also instead of the res.body having 3 entries, it ends up only having 2.

============================================================================== short test summary info ==============================================================================
FAILED pylint_plugins/api_models_test.py::test_copied_schema - AssertionError: assert 'default_files' in {'__module__': [<Const.str l.7 at 0x7f118ae0fb20>], '__qualname__': [<Const.str l.7 at 0x7f118ae0f4c0>], 'action': [<AssignName.action...
FAILED pylint_plugins/api_models_test.py::test_copied_imported_schema - AssertionError: assert 'default_files' in {'__module__': [<Const.str l.5 at 0x7f118ae5feb0>], '__qualname__': [<Const.str l.5 at 0x7f118ae4ffa0>], 'description': [<AssignName.d...
FAILED pylint_plugins/api_models_test.py::test_indirect_copied_schema - AttributeError: 'str' object has no attribute 'value'
FAILED pylint_plugins/api_models_test.py::TestTypeChecker::test_finds_no_member_on_api_model_when_property_not_in_schema - AttributeError: module 'pylint.testutils' has no attribute 'Message'
============================================================================ 4 failed, 5 passed in 0.51s ============================================================================