1 files changed, 78 insertions, 0 deletions
diff --git a/tests/functional/g/generic_alias/generic_alias_side_effects.py b/tests/functional/g/generic_alias/generic_alias_side_effects.py
new file mode 100644
index 000000000..64b3d9810
--- /dev/null
+++ b/tests/functional/g/generic_alias/generic_alias_side_effects.py
@@ -0,0 +1,78 @@
+# pylint: disable=missing-docstring,invalid-name,line-too-long,too-few-public-methods
+import typing
+import collections
+from typing import Generic, TypeVar
+
+
+# tests/functional/a/assigning_non_slot.py
+TYPE = TypeVar('TYPE')
+
+class Cls(Generic[TYPE]):
+    """ Simple class with slots """
+    __slots__ = ['value']
+
+    def __init__(self, value):
+        self.value = value
+
+
+# tests/functional/d/dangerous_default_value_py30.py
+def function4(value=set()): # [dangerous-default-value]
+    """set is mutable and dangerous."""
+    return value
+
+def function5(value=frozenset()):
+    """frozenset is immutable and safe."""
+    return value
+
+def function7(value=dict()): # [dangerous-default-value]
+    """dict is mutable and dangerous."""
+    return value
+
+def function8(value=list()):  # [dangerous-default-value]
+    """list is mutable and dangerous."""
+    return value
+
+def function17(value=collections.deque()):  # [dangerous-default-value]
+    """mutable, dangerous"""
+    return value
+
+def function18(value=collections.ChainMap()):  # [dangerous-default-value]
+    """mutable, dangerous"""
+    return value
+
+def function19(value=collections.Counter()):  # [dangerous-default-value]
+    """mutable, dangerous"""
+    return value
+
+def function20(value=collections.OrderedDict()):  # [dangerous-default-value]
+    """mutable, dangerous"""
+    return value
+
+def function21(value=collections.defaultdict()):  # [dangerous-default-value]
+    """mutable, dangerous"""
+    return value
+
+
+# tests/functional/p/protocol_classes.py  (min py38)
+T2 = typing.TypeVar("T2")
+
+class HasherGeneric(typing.Protocol[T2]):
+    """A hashing algorithm, e.g. :func:`hashlib.sha256`."""
+    def update(self, blob: bytes):
+        ...
+    def digest(self) -> bytes:
+        ...
+
+
+# tests/functional/r/regression/regression_2443_duplicate_bases.py
+IN = TypeVar('IN', contravariant=True)
+OUT = TypeVar('OUT', covariant=True)
+
+class ConsumingMixin(Generic[IN]):
+    pass
+
+class ProducingMixin(Generic[OUT]):
+    pass
+
+class StreamingMixin(Generic[IN, OUT], ConsumingMixin[IN], ProducingMixin[OUT]):
+    pass