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# Copyright (c) 2008-2010, 2013 LOGILAB S.A. (Paris, FRANCE) <contact@logilab.fr>
# Copyright (c) 2014 Google, Inc.
# Copyright (c) 2014 Arun Persaud <arun@nubati.net>
# Copyright (c) 2015-2020 Claudiu Popa <pcmanticore@gmail.com>
# Copyright (c) 2015 Ionel Cristian Maries <contact@ionelmc.ro>
# Copyright (c) 2016 Derek Gustafson <degustaf@gmail.com>
# Copyright (c) 2018 Sushobhit <31987769+sushobhit27@users.noreply.github.com>
# Copyright (c) 2019-2021 Pierre Sassoulas <pierre.sassoulas@gmail.com>
# Copyright (c) 2019 Ashley Whetter <ashley@awhetter.co.uk>
# Copyright (c) 2020 hippo91 <guillaume.peillex@gmail.com>
# Copyright (c) 2020 Damien Baty <damien.baty@polyconseil.fr>
# Copyright (c) 2020 Anthony Sottile <asottile@umich.edu>
# 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
"""Unit test for the extensions.diadefslib modules"""
# pylint: disable=redefined-outer-name
import sys
from pathlib import Path
import astroid
import pytest
from unittest_pyreverse_writer import Config, get_project
from pylint.pyreverse.diadefslib import (
ClassDiadefGenerator,
DefaultDiadefGenerator,
DiaDefGenerator,
DiadefsHandler,
)
from pylint.pyreverse.inspector import Linker
def _process_classes(classes):
"""extract class names of a list"""
return sorted([(isinstance(c.node, astroid.ClassDef), c.title) for c in classes])
def _process_relations(relations):
"""extract relation indices from a relation list"""
result = []
for rel_type, rels in relations.items():
for rel in rels:
result.append((rel_type, rel.from_object.title, rel.to_object.title))
result.sort()
return result
@pytest.fixture
def HANDLER():
return DiadefsHandler(Config())
@pytest.fixture(scope="module")
def PROJECT():
return get_project("data")
def test_option_values(HANDLER, PROJECT):
"""test for ancestor, associated and module options"""
df_h = DiaDefGenerator(Linker(PROJECT), HANDLER)
cl_config = Config()
cl_config.classes = ["Specialization"]
cl_h = DiaDefGenerator(Linker(PROJECT), DiadefsHandler(cl_config))
assert df_h._get_levels() == (0, 0)
assert not df_h.module_names
assert cl_h._get_levels() == (-1, -1)
assert cl_h.module_names
for hndl in [df_h, cl_h]:
hndl.config.all_ancestors = True
hndl.config.all_associated = True
hndl.config.module_names = True
hndl._set_default_options()
assert hndl._get_levels() == (-1, -1)
assert hndl.module_names
handler = DiadefsHandler(Config())
df_h = DiaDefGenerator(Linker(PROJECT), handler)
cl_config = Config()
cl_config.classes = ["Specialization"]
cl_h = DiaDefGenerator(Linker(PROJECT), DiadefsHandler(cl_config))
for hndl in [df_h, cl_h]:
hndl.config.show_ancestors = 2
hndl.config.show_associated = 1
hndl.config.module_names = False
hndl._set_default_options()
assert hndl._get_levels() == (2, 1)
assert not hndl.module_names
def test_default_values():
"""test default values for package or class diagrams"""
# TODO : should test difference between default values for package or class diagrams pylint: disable=fixme
class TestDefaultDiadefGenerator:
_should_rels = [
("association", "DoNothing", "Ancestor"),
("association", "DoNothing", "Specialization"),
("implements", "Ancestor", "Interface"),
("specialization", "Specialization", "Ancestor"),
]
def test_exctract_relations(self, HANDLER, PROJECT):
"""test extract_relations between classes"""
cd = DefaultDiadefGenerator(Linker(PROJECT), HANDLER).visit(PROJECT)[1]
cd.extract_relationships()
relations = _process_relations(cd.relationships)
assert relations == self._should_rels
def test_functional_relation_extraction(self):
"""functional test of relations extraction;
different classes possibly in different modules"""
# XXX should be catching pyreverse environnement problem but doesn't
# pyreverse doesn't extracts the relations but this test ok
project = get_project("data")
handler = DiadefsHandler(Config())
diadefs = handler.get_diadefs(project, Linker(project, tag=True))
cd = diadefs[1]
relations = _process_relations(cd.relationships)
assert relations == self._should_rels
def test_known_values1(HANDLER, PROJECT):
dd = DefaultDiadefGenerator(Linker(PROJECT), HANDLER).visit(PROJECT)
assert len(dd) == 2
keys = [d.TYPE for d in dd]
assert keys == ["package", "class"]
pd = dd[0]
assert pd.title == "packages No Name"
modules = sorted(
[(isinstance(m.node, astroid.Module), m.title) for m in pd.objects]
)
assert modules == [
(True, "data"),
(True, "data.clientmodule_test"),
(True, "data.suppliermodule_test"),
]
cd = dd[1]
assert cd.title == "classes No Name"
classes = _process_classes(cd.objects)
assert classes == [
(True, "Ancestor"),
(True, "DoNothing"),
(True, "Interface"),
(True, "Specialization"),
]
def test_known_values2(HANDLER):
project = get_project("data.clientmodule_test")
dd = DefaultDiadefGenerator(Linker(project), HANDLER).visit(project)
assert len(dd) == 1
keys = [d.TYPE for d in dd]
assert keys == ["class"]
cd = dd[0]
assert cd.title == "classes No Name"
classes = _process_classes(cd.objects)
assert classes == [(True, "Ancestor"), (True, "Specialization")]
def test_known_values3(HANDLER, PROJECT):
HANDLER.config.classes = ["Specialization"]
cdg = ClassDiadefGenerator(Linker(PROJECT), HANDLER)
special = "data.clientmodule_test.Specialization"
cd = cdg.class_diagram(PROJECT, special)
assert cd.title == special
classes = _process_classes(cd.objects)
assert classes == [
(True, "data.clientmodule_test.Ancestor"),
(True, special),
(True, "data.suppliermodule_test.DoNothing"),
]
def test_known_values4(HANDLER, PROJECT):
HANDLER.config.classes = ["Specialization"]
HANDLER.config.module_names = False
cd = ClassDiadefGenerator(Linker(PROJECT), HANDLER).class_diagram(
PROJECT, "data.clientmodule_test.Specialization"
)
assert cd.title == "data.clientmodule_test.Specialization"
classes = _process_classes(cd.objects)
assert classes == [
(True, "Ancestor"),
(True, "DoNothing"),
(True, "Specialization"),
]
@pytest.mark.skipif(sys.version_info < (3, 8), reason="Requires dataclasses")
def test_regression_dataclasses_inference(HANDLER):
project_path = Path("regrtest_data") / "dataclasses_pyreverse"
path = get_project(str(project_path))
cdg = ClassDiadefGenerator(Linker(path), HANDLER)
special = "regrtest_data.dataclasses_pyreverse.InventoryItem"
cd = cdg.class_diagram(path, special)
assert cd.title == special
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