Add regression tests.

pyproject.toml

@@ -41,7 +41,7 @@ dependencies    = [
     # Also upgrade requirements_test_min.txt.
     # Pinned to dev of second minor update to allow editable installs and fix primer issues,
     # see https://github.com/pylint-dev/astroid/issues/1341
-    "astroid>=3.0.0b0,<=3.1.0-dev0",
+    "astroid>=3.0.0,<=3.1.0-dev0",
     "isort>=4.2.5,<6",
     "mccabe>=0.6,<0.8",
     "tomli>=1.1.0;python_version<'3.11'",

requirements_test_min.txt

@@ -1,6 +1,6 @@
 .[testutils,spelling]
 # astroid dependency is also defined in pyproject.toml
-astroid==3.0.0b0  # Pinned to a specific version for tests
+astroid==3.0.0  # Pinned to a specific version for tests
 typing-extensions~=4.8
 py~=1.11.0
 pytest~=7.4

tests/functional/n/no/no_member_typevar.py

@@ -0,0 +1,25 @@
+# pylint: disable=missing-module-docstring, invalid-name, missing-class-docstring, unused-variable
+
+
+from dataclasses import dataclass
+from typing import Generic, TypeVar
+
+
+T_Inner = TypeVar("T_Inner", bound="Inner")
+
+
+@dataclass
+class Inner:
+    inner_attribute: str
+
+
+@dataclass
+class Outer(Generic[T_Inner]):
+    inner: T_Inner
+
+
+x = Outer(inner=Inner(inner_attribute="magic xylophone"))
+
+# Test `no-member` is not emitted here.
+# https://github.com/pylint-dev/pylint/issues/9069
+print(x.inner.inner_attribute)

tests/functional/u/unsubscriptable_object.py

@@ -1,7 +1,34 @@
 """Tests for unscubscriptable-object"""
 
-# Test for typing.NamedTuple
-# See: https://github.com/pylint-dev/pylint/issues/1295
+# pylint: disable=unused-variable, too-few-public-methods
+
 import typing
 
+from collections.abc import Mapping
+from typing import Generic, TypeVar, TypedDict
+from dataclasses import dataclass
+
+# Test for typing.NamedTuple
+# See: https://github.com/pylint-dev/pylint/issues/1295
 MyType = typing.Tuple[str, str]
+
+
+# https://github.com/pylint-dev/astroid/issues/2305
+class Identity(TypedDict):
+    """It's the identity."""
+
+    name: str
+
+T = TypeVar("T", bound=Mapping)
+
+@dataclass
+class Animal(Generic[T]):
+    """It's an animal."""
+
+    identity: T
+
+class Dog(Animal[Identity]):
+    """It's a Dog."""
+
+dog = Dog(identity=Identity(name="Dog"))
+print(dog.identity["name"])