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# Copyright (c) 2015-2016 Claudiu Popa <pcmanticore@gmail.com>
# Copyright (c) 2016 Derek Gustafson <degustaf@gmail.com>
# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
# For details: https://github.com/PyCQA/pylint/blob/master/COPYING
"""
for the visitors.diadefs module
"""
import os
import pytest
import astroid
from astroid import nodes
from astroid import bases
from pylint.pyreverse import inspector
from unittest_pyreverse_writer import get_project
@pytest.fixture
def project():
project = get_project('data', 'data')
linker = inspector.Linker(project)
linker.visit(project)
return project
def test_class_implements(project):
klass = project.get_module('data.clientmodule_test')['Ancestor']
assert hasattr(klass, 'implements')
assert len(klass.implements) == 1
assert isinstance(klass.implements[0], nodes.ClassDef)
assert klass.implements[0].name == "Interface"
def test_class_implements_specialization(project):
klass = project.get_module('data.clientmodule_test')['Specialization']
assert hasattr(klass, 'implements')
assert len(klass.implements) == 0
def test_locals_assignment_resolution(project):
klass = project.get_module('data.clientmodule_test')['Specialization']
assert hasattr(klass, 'locals_type')
type_dict = klass.locals_type
assert len(type_dict) == 2
keys = sorted(type_dict.keys())
assert keys == ['TYPE', 'top']
assert len(type_dict['TYPE']) == 1
assert type_dict['TYPE'][0].value == 'final class'
assert len(type_dict['top']) == 1
assert type_dict['top'][0].value == 'class'
def test_instance_attrs_resolution(project):
klass = project.get_module('data.clientmodule_test')['Specialization']
assert hasattr(klass, 'instance_attrs_type')
type_dict = klass.instance_attrs_type
assert len(type_dict) == 2
keys = sorted(type_dict.keys())
assert keys == ['_id', 'relation']
assert isinstance(type_dict['relation'][0], bases.Instance), \
type_dict['relation']
assert type_dict['relation'][0].name == 'DoNothing'
assert type_dict['_id'][0] is astroid.YES
def test_concat_interfaces():
cls = astroid.extract_node('''
class IMachin: pass
class Correct2:
"""docstring"""
__implements__ = (IMachin,)
class BadArgument:
"""docstring"""
__implements__ = (IMachin,)
class InterfaceCanNowBeFound: #@
"""docstring"""
__implements__ = BadArgument.__implements__ + Correct2.__implements__
''')
interfaces = inspector.interfaces(cls)
assert [i.name for i in interfaces] == ['IMachin']
def test_interfaces():
module = astroid.parse('''
class Interface(object): pass
class MyIFace(Interface): pass
class AnotherIFace(Interface): pass
class Concrete0(object):
__implements__ = MyIFace
class Concrete1:
__implements__ = (MyIFace, AnotherIFace)
class Concrete2:
__implements__ = (MyIFace, AnotherIFace)
class Concrete23(Concrete1): pass
''')
for klass, interfaces in (('Concrete0', ['MyIFace']),
('Concrete1', ['MyIFace', 'AnotherIFace']),
('Concrete2', ['MyIFace', 'AnotherIFace']),
('Concrete23', ['MyIFace', 'AnotherIFace'])):
klass = module[klass]
assert [i.name for i in inspector.interfaces(klass)] == interfaces
def test_from_directory(project):
expected = os.path.join('pylint', 'test', 'data', '__init__.py')
assert project.name == 'data'
assert project.path.endswith(expected)
def test_project_node(project):
expected = [
'data', 'data.clientmodule_test',
'data.suppliermodule_test',
]
assert sorted(project.keys()) == expected
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