murano/murano/tests/unit/dsl/test_statics.py
Stan Lagun 584571c3d8 On-demand garbage collection
Garbage collection is triggered by io.murano.system.GC.collect()
static method. Garbage collector destroys all object that are not
reachable anymore. GC can handle objects with cross-references and
isolated object graphs. When portion of object model becomes not
reachable it destroyed in predictable order such that child objects get
destroyed before their parents and, when possible, before objects
that are subscribed to their destruction notifications.

Internally, both pre-deployment garbage collection (that was done by
comparision of ``Objects`` and ``ObjectsCopy``) and post-deployment
orphan object collection are now done through the new GC.

MuranoPL GC utilizes Python GC to track and collect objects.
The main idea is to make ObjectStore have weak links only and
prevent hard links in other dsl places so that only links between objects
remain. Then prevent Python GC to automatically delete objects that
are not used anymore and use gc.collect() to obtain a list of
objects that are both not reachable and cannot be destroyed and then
destroy them in the correct order.

Targets-blueprint: dependency-driven-resource-deallocation
Closes-Bug: #1619635
Closes-Bug: #1597747
Change-Id: I653d8f71f003afa0a1ea588c9d14198571f5ad14
2016-09-14 03:43:09 +00:00

155 lines
5.8 KiB
Python

# Copyright (c) 2016 Mirantis, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from yaql.language import exceptions as yaql_exceptions
from yaql.language import specs
from yaql.language import yaqltypes
from murano.dsl import dsl
from murano.dsl import dsl_types
from murano.dsl import exceptions
from murano.tests.unit.dsl.foundation import object_model as om
from murano.tests.unit.dsl.foundation import test_case
class TestStatics(test_case.DslTestCase):
def setUp(self):
@dsl.name('test.TestStatics')
class PythonClass(object):
@staticmethod
@specs.parameter('arg', yaqltypes.Integer())
@specs.inject('receiver', yaqltypes.Receiver())
def static_python_method(arg, receiver):
if isinstance(receiver, dsl_types.MuranoObjectInterface):
return 3 * arg
return 7 * arg
@classmethod
@specs.inject('receiver', yaqltypes.Receiver())
def classmethod_python_method(cls, arg, receiver):
if isinstance(receiver, dsl_types.MuranoObjectInterface):
return cls.__name__.upper() + str(arg)
return cls.__name__ + str(arg)
super(TestStatics, self).setUp()
self.package_loader.load_class_package(
'test.TestStatics', None).register_class(PythonClass)
self._runner = self.new_runner(
om.Object('test.TestStatics', staticProperty2='INVALID'))
def test_call_static_method_on_object(self):
self.assertEqual(123, self._runner.testCallStaticMethodOnObject())
def test_call_static_method_on_class_name(self):
self.assertEqual(123, self._runner.testCallStaticMethodOnClassName())
def test_call_static_method_on_class_name_with_ns(self):
self.assertEqual(
678, self._runner.testCallStaticMethodOnClassNameWithNs())
def test_call_static_method_from_another_method(self):
self.assertEqual(
123 * 5, self._runner.testCallStaticMethodFromAnotherMethod())
def test_static_this(self):
self.assertIsInstance(
self._runner.testStaticThis(), dsl_types.MuranoTypeReference)
def test_no_access_to_instance_properties(self):
self.assertRaises(
exceptions.NoPropertyFound,
self._runner.testNoAccessToInstanceProperties)
def test_access_static_property_from_instance_method(self):
self.assertEqual(
'xxx', self._runner.testAccessStaticPropertyFromInstanceMethod())
def test_access_static_property_from_static_method(self):
self.assertEqual(
'xxx', self._runner.testAccessStaticPropertyFromStaticMethod())
def test_modify_static_property_using_dollar(self):
self.assertEqual(
'qq', self._runner.testModifyStaticPropertyUsingDollar())
def test_modify_static_property_using_this(self):
self.assertEqual(
'qq', self._runner.testModifyStaticPropertyUsingThis())
def test_modify_static_property_using_class_name(self):
self.assertEqual(
'qq', self._runner.testModifyStaticPropertyUsingClassName())
def test_modify_static_property_using_ns_class_name(self):
self.assertEqual(
'qq', self._runner.testModifyStaticPropertyUsingNsClassName())
def test_modify_static_property_using_type_func(self):
self.assertEqual(
'qq', self._runner.testModifyStaticPropertyUsingTypeFunc())
def test_modify_static_dict_property(self):
self.assertEqual(
{'key': 'value'}, self._runner.testModifyStaticDictProperty())
def test_property_is_static(self):
self.assertEqual('qq', self._runner.testPropertyIsStatic())
def test_static_properties_excluded_from_object_model(self):
self.assertEqual(
'staticProperty',
self._runner.testStaticPropertisNotLoaded())
def test_type_is_singleton(self):
self.assertTrue(self._runner.testTypeIsSingleton())
def test_static_property_inheritance(self):
self.assertEqual(
'baseStaticProperty' * 3,
self._runner.testStaticPropertyInheritance())
def test_static_property_override(self):
self.assertEqual(
[
'conflictingStaticProperty-child',
'conflictingStaticProperty-child',
'conflictingStaticProperty-base',
'conflictingStaticProperty-child',
'conflictingStaticProperty-base'
], self._runner.testStaticPropertyOverride())
def test_type_info_of_type(self):
self.assertTrue(self._runner.testTypeinfoOfType())
def test_call_python_static_method(self):
self.assertEqual(
[333] + [777] * 3,
self._runner.testCallPythonStaticMethod())
def test_call_python_classmethod(self):
self.assertEqual(
['PYTHONCLASS!'] + ['PythonClass!'] * 3,
self._runner.testCallPythonClassMethod())
def test_call_static_method_on_invalid_class(self):
self.assertRaises(
yaql_exceptions.NoMatchingMethodException,
self._runner.testCallStaticMethodOnInvalidClass)
def test_static_method_callable_from_python(self):
self.assertEqual(
'It works!',
self._runner.on_class('test.TestStatics').testStaticAction())