Add ``mixin-class-rgx`` option (#5203)

Co-authored-by: Alpha <alpha@pokesplash.net>

Co-authored-by: Pierre Sassoulas <pierre.sassoulas@gmail.com>

3 files changed, 66 insertions, 0 deletions

diff --git a/tests/functional/m/mixin_class_rgx.py b/tests/functional/m/mixin_class_rgx.py
new file mode 100644
index 000000000..1f6ea21e6
--- /dev/null
+++ b/tests/functional/m/mixin_class_rgx.py
@@ -0,0 +1,60 @@
+"""Tests for the mixin-class-rgx option"""
+# pylint: disable=too-few-public-methods
+
+
+# Tests for not-async-context-manager
+
+
+class AsyncManagerMixedin:
+    """Class that does not match the option pattern"""
+
+    def __aenter__(self):
+        pass
+
+
+class AsyncManagerMixin:
+    """Class that does match the option pattern"""
+
+    def __aenter__(self):
+        pass
+
+
+async def check_not_async_context_manager():
+    """Function calling the classes for not-async-context-manager"""
+    async with AsyncManagerMixedin:  # [not-async-context-manager]
+        pass
+    async with AsyncManagerMixin():
+        pass
+
+
+# Tests for attribute-defined-outside-init
+
+
+class OutsideInitMixedin:
+    """Class that does not match the option pattern"""
+
+    def set_attribute(self):
+        """Set an attribute outside of __init__"""
+        self.attr = 1  # [attribute-defined-outside-init]
+
+
+class OutsideInitMixin:
+    """Class that does match the option pattern"""
+
+    def set_attribute(self):
+        """Set an attribute outside of __init__"""
+        self.attr = 1
+
+
+# Tests for no-member
+
+
+class NoMemberMixedin:
+    """Class that does not match the option pattern"""
+
+MY_CLASS = OutsideInitMixedin().method() # [no-member]
+
+class NoMemberMixin:
+    """Class that does match the option pattern"""
+
+MY_OTHER_CLASS = NoMemberMixin().method()
diff --git a/tests/functional/m/mixin_class_rgx.rc b/tests/functional/m/mixin_class_rgx.rc
new file mode 100644
index 000000000..4ca300e4a
--- /dev/null
+++ b/tests/functional/m/mixin_class_rgx.rc
@@ -0,0 +1,3 @@
+[TYPECHECK]
+ignore-mixin-members=yes
+mixin-class-rgx=.*[Mm]ixin
diff --git a/tests/functional/m/mixin_class_rgx.txt b/tests/functional/m/mixin_class_rgx.txt
new file mode 100644
index 000000000..eb39a1185
--- /dev/null
+++ b/tests/functional/m/mixin_class_rgx.txt
@@ -0,0 +1,3 @@
+not-async-context-manager:24:4:check_not_async_context_manager:Async context manager 'AsyncManagerMixedin' doesn't implement __aenter__ and __aexit__.:HIGH
+attribute-defined-outside-init:38:8:OutsideInitMixedin.set_attribute:Attribute 'attr' defined outside __init__:HIGH
+no-member:55:11::Instance of 'OutsideInitMixedin' has no 'method' member:INFERENCE