Move various tests from TestTypeChecker to functional tests (#5455)

* Remove duplicate test already in 'not_context_manager.py'

tests/checkers/unittest_typecheck.py

@@ -200,179 +200,6 @@ def test_nomember_on_c_extension_info_msg(self) -> None:
         with self.assertAddsMessages(message):
             self.checker.visit_attribute(node)
 
-    @set_config(
-        contextmanager_decorators=(
-            "contextlib.contextmanager",
-            ".custom_contextmanager",
-        )
-    )
-    def test_custom_context_manager(self):
-        """Test that @custom_contextmanager is recognized as configured."""
-        node = astroid.extract_node(
-            """
-        from contextlib import contextmanager
-        def custom_contextmanager(f):
-            return contextmanager(f)
-        @custom_contextmanager
-        def dec():
-            yield
-        with dec():
-            pass
-        """
-        )
-        with self.assertNoMessages():
-            self.checker.visit_with(node)
-
-    def test_invalid_metaclass(self) -> None:
-        module = astroid.parse(
-            """
-        class InvalidAsMetaclass(object):
-            pass
-
-        class FirstInvalid(object, metaclass=int):
-            pass
-
-        class SecondInvalid(object, metaclass=InvalidAsMetaclass):
-            pass
-
-        class ThirdInvalid(object, metaclass=2):
-            pass
-
-        class FourthInvalid(object, metaclass=InvalidAsMetaclass()):
-            pass
-        """
-        )
-        for class_obj, metaclass_name in (
-            ("FourthInvalid", "Instance of .InvalidAsMetaclass"),
-            ("ThirdInvalid", "2"),
-            ("SecondInvalid", "InvalidAsMetaclass"),
-            ("FirstInvalid", "int"),
-        ):
-            classdef = module[class_obj]
-            message = MessageTest(
-                "invalid-metaclass", node=classdef, args=(metaclass_name,)
-            )
-            with self.assertAddsMessages(message):
-                self.checker.visit_classdef(classdef)
-
-    def test_invalid_metaclass_function_metaclasses(self) -> None:
-        module = astroid.parse(
-            """
-        def invalid_metaclass_1(name, bases, attrs):
-            return int
-        def invalid_metaclass_2(name, bases, attrs):
-            return 1
-        class Invalid(metaclass=invalid_metaclass_1):
-            pass
-        class InvalidSecond(metaclass=invalid_metaclass_2):
-            pass
-        """
-        )
-        for class_obj, metaclass_name in (("Invalid", "int"), ("InvalidSecond", "1")):
-            classdef = module[class_obj]
-            message = MessageTest(
-                "invalid-metaclass", node=classdef, args=(metaclass_name,)
-            )
-            with self.assertAddsMessages(message):
-                self.checker.visit_classdef(classdef)
-
-    def test_typing_namedtuple_not_callable_issue1295(self) -> None:
-        module = astroid.parse(
-            """
-        import typing
-        Named = typing.NamedTuple('Named', [('foo', int), ('bar', int)])
-        named = Named(1, 2)
-        """
-        )
-        call = module.body[-1].value
-        callables = call.func.inferred()
-        assert len(callables) == 1
-        assert callables[0].callable()
-        with self.assertNoMessages():
-            self.checker.visit_call(call)
-
-    def test_typing_namedtuple_unsubscriptable_object_issue1295(self) -> None:
-        module = astroid.parse(
-            """
-        import typing
-        MyType = typing.Tuple[str, str]
-        """
-        )
-        subscript = module.body[-1].value
-        with self.assertNoMessages():
-            self.checker.visit_subscript(subscript)
-
-    def test_staticmethod_multiprocessing_call(self) -> None:
-        """Make sure not-callable isn't raised for descriptors
-
-        astroid can't process descriptors correctly so
-        pylint needs to ignore not-callable for them
-        right now
-
-        Test for https://github.com/PyCQA/pylint/issues/1699
-        """
-        call = astroid.extract_node(
-            """
-        import multiprocessing
-        multiprocessing.current_process() #@
-        """
-        )
-        with self.assertNoMessages():
-            self.checker.visit_call(call)
-
-    def test_not_callable_uninferable_property(self) -> None:
-        """Make sure not-callable isn't raised for uninferable
-        properties
-        """
-        call = astroid.extract_node(
-            """
-        class A:
-            @property
-            def call(self):
-                return undefined
-
-        a = A()
-        a.call() #@
-        """
-        )
-        with self.assertNoMessages():
-            self.checker.visit_call(call)
-
-    def test_descriptor_call(self) -> None:
-        call = astroid.extract_node(
-            """
-        def func():
-            pass
-
-        class ADescriptor:
-            def __get__(self, instance, owner):
-                return func
-
-        class AggregateCls:
-            a = ADescriptor()
-
-        AggregateCls().a() #@
-        """
-        )
-        with self.assertNoMessages():
-            self.checker.visit_call(call)
-
-    def test_unknown_parent(self) -> None:
-        """Make sure the callable check does not crash when a node's parent
-        cannot be determined.
-        """
-        call = astroid.extract_node(
-            """
-        def get_num(n):
-            return 2 * n
-        get_num(10)()
-        """
-        )
-        with self.assertAddsMessages(
-            MessageTest("not-callable", node=call, args="get_num(10)")
-        ):
-            self.checker.visit_call(call)
-
 
 class TestTypeCheckerOnDecorators(CheckerTestCase):
     "Tests for pylint.checkers.typecheck on decorated functions."

tests/functional/i/invalid/m/invalid_metaclass.py

@@ -32,3 +32,35 @@ class ThirdGood(object):
 @six.add_metaclass(ValidAsMetaclass)
 class FourthGood(object):
     pass
+
+
+class FirstInvalid(object, metaclass=int):  # [invalid-metaclass]
+    pass
+
+
+class SecondInvalid(object, metaclass=InvalidAsMetaclass):  # [invalid-metaclass]
+    pass
+
+
+class ThirdInvalid(object, metaclass=2):  # [invalid-metaclass]
+    pass
+
+
+class FourthInvalid(object, metaclass=InvalidAsMetaclass()):  # [invalid-metaclass]
+    pass
+
+
+def invalid_metaclass_1(name, bases, attrs):
+    return int
+
+
+def invalid_metaclass_2(name, bases, attrs):
+    return 1
+
+
+class Invalid(metaclass=invalid_metaclass_1):  # [invalid-metaclass]
+    pass
+
+
+class InvalidSecond(metaclass=invalid_metaclass_2):  # [invalid-metaclass]
+    pass

tests/functional/i/invalid/m/invalid_metaclass.txt

@@ -0,0 +1,6 @@
+invalid-metaclass:37:0:38:8:FirstInvalid:Invalid metaclass 'int' used:UNDEFINED
+invalid-metaclass:41:0:42:8:SecondInvalid:Invalid metaclass 'InvalidAsMetaclass' used:UNDEFINED
+invalid-metaclass:45:0:46:8:ThirdInvalid:Invalid metaclass '2' used:UNDEFINED
+invalid-metaclass:49:0:50:8:FourthInvalid:Invalid metaclass 'Instance of invalid_metaclass.InvalidAsMetaclass' used:UNDEFINED
+invalid-metaclass:61:0:62:8:Invalid:Invalid metaclass 'int' used:UNDEFINED
+invalid-metaclass:65:0:66:8:InvalidSecond:Invalid metaclass '1' used:UNDEFINED

tests/functional/n/not_callable.py

@@ -1,4 +1,5 @@
 # pylint: disable=missing-docstring,no-self-use,too-few-public-methods,wrong-import-position,useless-object-inheritance,use-dict-literal
+# pylint: disable=wrong-import-order, undefined-variable
 
 REVISION = None
 
@@ -117,7 +118,8 @@ def does_not_make_sense(self):
 PROP1.does_not_make_sense()
 
 
-import missing # pylint: disable=import-error
+import missing  # pylint: disable=import-error
+
 
 class UnknownBaseCallable(missing.Blah):
     pass
@@ -133,3 +135,56 @@ def value(self):
         return 42
 
 CLASS_WITH_PROP = ClassWithProperty().value()  # [not-callable]
+
+# Test typing.Namedtuple not callable
+# See: https://github.com/PyCQA/pylint/issues/1295
+import typing
+
+Named = typing.NamedTuple("Named", [("foo", int), ("bar", int)])
+named = Named(1, 2)
+
+# Test descriptor call
+def func():
+    pass
+
+
+class ADescriptor:
+    def __get__(self, instance, owner):
+        return func
+
+
+class AggregateCls:
+    a = ADescriptor()
+
+
+AggregateCls().a()
+
+
+# Make sure not-callable isn't raised for descriptors
+
+# astroid can't process descriptors correctly so
+# pylint needs to ignore not-callable for them
+# right now
+
+# Test for https://github.com/PyCQA/pylint/issues/1699
+
+import multiprocessing
+
+multiprocessing.current_process()
+
+# Make sure not-callable isn't raised for uninferable properties
+class MyClass:
+    @property
+    def call(self):
+        return undefined
+
+
+a = A()
+a.call()
+
+# Make sure the callable check does not crash when a node's parent cannot be determined.
+def get_number(arg):
+    return 2 * arg
+
+
+get_number(10)()  # [not-callable]

tests/functional/n/not_callable.txt

@@ -1,9 +1,10 @@
-not-callable:5:0:5:10::REVISION is not callable:UNDEFINED
-not-callable:23:12:23:22::INSTANCE is not callable:UNDEFINED
-not-callable:25:12:25:18::LIST is not callable:UNDEFINED
-not-callable:27:12:27:18::DICT is not callable:UNDEFINED
-not-callable:29:12:29:19::TUPLE is not callable:UNDEFINED
-not-callable:31:12:31:17::INT is not callable:UNDEFINED
-not-callable:66:0:66:13::PROP.test is not callable:UNDEFINED
-not-callable:67:0:67:13::PROP.custom is not callable:UNDEFINED
-not-callable:135:18:135:45::ClassWithProperty().value is not callable:UNDEFINED
+not-callable:6:0:6:10::REVISION is not callable:UNDEFINED
+not-callable:24:12:24:22::INSTANCE is not callable:UNDEFINED
+not-callable:26:12:26:18::LIST is not callable:UNDEFINED
+not-callable:28:12:28:18::DICT is not callable:UNDEFINED
+not-callable:30:12:30:19::TUPLE is not callable:UNDEFINED
+not-callable:32:12:32:17::INT is not callable:UNDEFINED
+not-callable:67:0:67:13::PROP.test is not callable:UNDEFINED
+not-callable:68:0:68:13::PROP.custom is not callable:UNDEFINED
+not-callable:137:18:137:45::ClassWithProperty().value is not callable:UNDEFINED
+not-callable:190:0:190:16::get_number(10) is not callable:UNDEFINED

tests/functional/u/unsubscriptable_object.py

@@ -0,0 +1,7 @@
+"""Tests for unscubscriptable-object"""
+
+# Test for typing.NamedTuple
+# See: https://github.com/PyCQA/pylint/issues/1295
+import typing
+
+MyType = typing.Tuple[str, str]