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124 lines
3.8 KiB
Python
124 lines
3.8 KiB
Python
# Copyright (c) 2015-2018 Claudiu Popa <pcmanticore@gmail.com>
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# Copyright (c) 2016 Derek Gustafson <degustaf@gmail.com>
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# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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# For details: https://github.com/PyCQA/pylint/blob/master/COPYING
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"""
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for the visitors.diadefs module
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"""
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import os
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import pytest
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import astroid
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from astroid import nodes
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from astroid import bases
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from pylint.pyreverse import inspector
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from unittest_pyreverse_writer import get_project
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@pytest.fixture
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def project():
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project = get_project('data', 'data')
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linker = inspector.Linker(project)
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linker.visit(project)
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return project
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def test_class_implements(project):
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klass = project.get_module('data.clientmodule_test')['Ancestor']
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assert hasattr(klass, 'implements')
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assert len(klass.implements) == 1
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assert isinstance(klass.implements[0], nodes.ClassDef)
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assert klass.implements[0].name == "Interface"
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def test_class_implements_specialization(project):
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klass = project.get_module('data.clientmodule_test')['Specialization']
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assert hasattr(klass, 'implements')
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assert len(klass.implements) == 0
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def test_locals_assignment_resolution(project):
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klass = project.get_module('data.clientmodule_test')['Specialization']
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assert hasattr(klass, 'locals_type')
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type_dict = klass.locals_type
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assert len(type_dict) == 2
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keys = sorted(type_dict.keys())
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assert keys == ['TYPE', 'top']
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assert len(type_dict['TYPE']) == 1
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assert type_dict['TYPE'][0].value == 'final class'
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assert len(type_dict['top']) == 1
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assert type_dict['top'][0].value == 'class'
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def test_instance_attrs_resolution(project):
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klass = project.get_module('data.clientmodule_test')['Specialization']
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assert hasattr(klass, 'instance_attrs_type')
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type_dict = klass.instance_attrs_type
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assert len(type_dict) == 2
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keys = sorted(type_dict.keys())
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assert keys == ['_id', 'relation']
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assert isinstance(type_dict['relation'][0], bases.Instance), \
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type_dict['relation']
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assert type_dict['relation'][0].name == 'DoNothing'
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assert type_dict['_id'][0] is astroid.Uninferable
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def test_concat_interfaces():
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cls = astroid.extract_node('''
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class IMachin: pass
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class Correct2:
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"""docstring"""
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__implements__ = (IMachin,)
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class BadArgument:
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"""docstring"""
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__implements__ = (IMachin,)
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class InterfaceCanNowBeFound: #@
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"""docstring"""
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__implements__ = BadArgument.__implements__ + Correct2.__implements__
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''')
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interfaces = inspector.interfaces(cls)
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assert [i.name for i in interfaces] == ['IMachin']
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def test_interfaces():
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module = astroid.parse('''
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class Interface(object): pass
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class MyIFace(Interface): pass
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class AnotherIFace(Interface): pass
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class Concrete0(object):
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__implements__ = MyIFace
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class Concrete1:
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__implements__ = (MyIFace, AnotherIFace)
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class Concrete2:
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__implements__ = (MyIFace, AnotherIFace)
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class Concrete23(Concrete1): pass
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''')
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for klass, interfaces in (('Concrete0', ['MyIFace']),
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('Concrete1', ['MyIFace', 'AnotherIFace']),
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('Concrete2', ['MyIFace', 'AnotherIFace']),
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('Concrete23', ['MyIFace', 'AnotherIFace'])):
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klass = module[klass]
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assert [i.name for i in inspector.interfaces(klass)] == interfaces
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def test_from_directory(project):
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expected = os.path.join('pylint', 'test', 'data', '__init__.py')
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assert project.name == 'data'
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assert project.path.endswith(expected)
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def test_project_node(project):
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expected = [
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'data', 'data.clientmodule_test',
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'data.suppliermodule_test',
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]
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assert sorted(project.keys()) == expected
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