Closes #191, closes #174

tests/fixtures/noqa.py

@@ -17,6 +17,8 @@
 def some():  # noqa: Z110, Z113
     from my_module import some_function  # noqa: Z435
 
+    class Nested(object): ...  # noqa: 431
+
     def nested(): ...  # noqa: Z430
 
 
@@ -36,6 +38,10 @@ class BadClass:  # noqa: Z306
     def some_static():
         ...
 
+    @staticmethod  # noqa: Z433
+    async def some_async_static():
+        ...
+
     def __del__(self, *args, **kwargs):  # noqa: Z434
         ...
 

tests/test_visitors/test_ast/test_complexity/test_nested/test_nested_classes.py

@@ -11,26 +11,39 @@
 )
 
 nested_class = """
-class Parent:
-    class {0}: ...
+class Parent(object):
+    class {0}(object): ...
 """
 
 nested_class_in_method = """
-class Parent:
+class Parent(object):
     def container(self):
-        class {0}: ...
+        class {0}(object): ...
+"""
+
+nested_class_in_async_method = """
+class Parent(object):
+    async def container(self):
+        class {0}(object): ...
 """
 
 nested_class_in_function = """
 def container():
-    class {0}: ...
+    class {0}(object): ...
+"""
+
+nested_class_in_async_function = """
+async def container():
+    class {0}(object): ...
 """
 
 
 @pytest.mark.parametrize('code', [
     nested_class,
     nested_class_in_method,
+    nested_class_in_async_method,
     nested_class_in_function,
+    nested_class_in_async_function,
 ])
 def test_nested_class(assert_errors, parse_ast_tree, code, default_options):
     """Testing that nested classes are restricted."""
@@ -64,7 +77,9 @@ def test_whitelist_nested_classes(
 ])
 @pytest.mark.parametrize('code', [
     nested_class_in_method,
+    nested_class_in_async_method,
     nested_class_in_function,
+    nested_class_in_async_function,
 ])
 def test_whitelist_nested_classes_in_functions(
     assert_errors, parse_ast_tree, whitelist_name, code, default_options,
@@ -81,7 +96,10 @@ def test_whitelist_nested_classes_in_functions(
 def test_ordinary_class(assert_errors, parse_ast_tree, default_options):
     """Testing that it is possible to write basic classes."""
     tree = parse_ast_tree("""
-    class Ordinary:
+    class Ordinary(object):
+        def method(self): ...
+
+    class Second(Ordinary):
         def method(self): ...
     """)
 

tests/test_visitors/test_ast/test_complexity/test_nested/test_nested_functions.py

@@ -10,21 +10,88 @@
     NestedComplexityVisitor,
 )
 
-nested_function = """
+# Functions:
+
+nested_function_in_function = """
 def container():
     def {0}(): ...
 """
 
-nested_method = """
-class Raw:
+nested_function_in_async_function = """
+async def container():
+    def {0}(): ...
+"""
+
+nested_async_function_in_async_function = """
+async def container():
+    async def {0}(): ...
+"""
+
+nested_async_function_in_function = """
+def container():
+    async def {0}(): ...
+"""
+
+# Methods:
+
+nested_function_in_method = """
+class Raw(object):
     def container(self):
         def {0}(): ...
 """
 
+nested_function_in_async_method = """
+class Raw(object):
+    async def container(self):
+        def {0}(): ...
+"""
+
+nested_async_function_in_async_method = """
+class Raw(object):
+    async def container(self):
+        async def {0}(): ...
+"""
+
+nested_async_function_in_method = """
+class Raw(object):
+    def container(self):
+        async def {0}(): ...
+"""
+
+# Lambdas:
+
+lambda_in_function = """
+def container():
+    lazy_value = lambda: 12
+"""
+
+lambda_in_async_function = """
+async def container():
+    lazy_value = lambda: 12
+"""
+
+lambda_in_method = """
+class Raw(object):
+    def container(self):
+        lazy_value = lambda: 12
+"""
+
+lambda_in_async_method = """
+class Raw(object):
+    def container(self):
+        lazy_value = lambda: 12
+"""
+
 
 @pytest.mark.parametrize('code', [
-    nested_function,
-    nested_method,
+    nested_function_in_function,
+    nested_async_function_in_function,
+    nested_function_in_async_function,
+    nested_async_function_in_async_function,
+    nested_function_in_method,
+    nested_async_function_in_method,
+    nested_function_in_async_method,
+    nested_async_function_in_async_method,
 ])
 def test_nested_function(assert_errors, parse_ast_tree, code, default_options):
     """Testing that nested functions are restricted."""
@@ -38,8 +105,14 @@ def test_nested_function(assert_errors, parse_ast_tree, code, default_options):
 
 @pytest.mark.parametrize('whitelist_name', NESTED_FUNCTIONS_WHITELIST)
 @pytest.mark.parametrize('code', [
-    nested_function,
-    nested_method,
+    nested_function_in_function,
+    nested_async_function_in_function,
+    nested_function_in_async_function,
+    nested_async_function_in_async_function,
+    nested_function_in_method,
+    nested_async_function_in_method,
+    nested_function_in_async_method,
+    nested_async_function_in_async_method,
 ])
 def test_whitelist_nested_functions(
     assert_errors, parse_ast_tree, whitelist_name, code, default_options,
@@ -53,14 +126,17 @@ def test_whitelist_nested_functions(
     assert_errors(visitor, [])
 
 
+@pytest.mark.parametrize('code', [
+    lambda_in_function,
+    lambda_in_async_function,
+    lambda_in_method,
+    lambda_in_async_method,
+])
 def test_lambda_nested_functions(
-    assert_errors, parse_ast_tree, default_options,
+    assert_errors, parse_ast_tree, code, default_options,
 ):
     """Testing that it is possible to nest lambda inside functions."""
-    tree = parse_ast_tree("""
-    def container():
-        lazy_value = lambda: 12
-    """)
+    tree = parse_ast_tree(code)
 
     visitor = NestedComplexityVisitor(default_options, tree=tree)
     visitor.run()
@@ -83,17 +159,3 @@ def container():
     visitor.run()
 
     assert_errors(visitor, [NestedFunctionViolation])
-
-
-def test_lambda_nested_method(assert_errors, parse_ast_tree, default_options):
-    """Testing that it is possible to nest lambda inside methods."""
-    tree = parse_ast_tree("""
-    class Raw:
-        def container(self):
-            lazy_value = lambda: 12
-    """)
-
-    visitor = NestedComplexityVisitor(default_options, tree=tree)
-    visitor.run()
-
-    assert_errors(visitor, [])

tests/test_visitors/test_ast/test_general/test_wrong_class/test_magic_methods.py

@@ -13,31 +13,52 @@ class Example(object):
     def {0}(): ...
 """
 
+async_magic_method = """
+class Example(object):
+    async def {0}(): ...
+"""
+
 
+@pytest.mark.parametrize('code', [
+    magic_method,
+    async_magic_method,
+])
 @pytest.mark.parametrize('method', BAD_MAGIC_METHODS)
 def test_wrong_magic_used(
-    assert_errors, parse_ast_tree, method, default_options,
+    assert_errors,
+    parse_ast_tree,
+    code,
+    method,
+    default_options,
 ):
     """Testing that some magic methods are restricted."""
-    tree = parse_ast_tree(magic_method.format(method))
+    tree = parse_ast_tree(code.format(method))
 
     visitor = WrongClassVisitor(default_options, tree=tree)
     visitor.run()
 
     assert_errors(visitor, [BadMagicMethodViolation])
 
 
+@pytest.mark.parametrize('code', [
+    magic_method,
+    async_magic_method,
+])
 @pytest.mark.parametrize('method', [
     '__add__',
     '__init__',
     'next',
     'regular',
 ])
 def test_regular_method_used(
-    assert_errors, parse_ast_tree, method, default_options,
+    assert_errors,
+    parse_ast_tree,
+    code,
+    method,
+    default_options,
 ):
     """Testing that other methods are working fine."""
-    tree = parse_ast_tree(magic_method.format(method))
+    tree = parse_ast_tree(code.format(method))
 
     visitor = WrongClassVisitor(default_options, tree=tree)
     visitor.run()

tests/test_visitors/test_ast/test_general/test_wrong_class/test_staticmethod.py

@@ -13,27 +13,50 @@ class Example(object):
     def should_fail(): ...
 """
 
+async_decorated_method = """
+class Example(object):
+    @{0}
+    async def should_fail(): ...
+"""
+
 
-def test_staticmethod_used(assert_errors, parse_ast_tree, default_options):
+@pytest.mark.parametrize('code', [
+    decorated_method,
+    async_decorated_method,
+])
+def test_staticmethod_used(
+    assert_errors,
+    parse_ast_tree,
+    code,
+    default_options,
+):
     """Testing that some built-in functions are restricted as decorators."""
-    tree = parse_ast_tree(decorated_method.format('staticmethod'))
+    tree = parse_ast_tree(code.format('staticmethod'))
 
     visitor = WrongClassVisitor(default_options, tree=tree)
     visitor.run()
 
     assert_errors(visitor, [StaticMethodViolation])
 
 
+@pytest.mark.parametrize('code', [
+    decorated_method,
+    async_decorated_method,
+])
 @pytest.mark.parametrize('decorator', [
     'classmethod',
     'custom',
     'with_params(12, 100)',
 ])
 def test_regular_decorator_used(
-    assert_errors, parse_ast_tree, decorator, default_options,
+    assert_errors,
+    parse_ast_tree,
+    decorator,
+    code,
+    default_options,
 ):
     """Testing that other decorators are allowed."""
-    tree = parse_ast_tree(decorated_method.format(decorator))
+    tree = parse_ast_tree(code.format(decorator))
 
     visitor = WrongClassVisitor(default_options, tree=tree)
     visitor.run()