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# Copyright (c) 2006-2008, 2010, 2013 LOGILAB S.A. (Paris, FRANCE) <contact@logilab.fr>
# Copyright (c) 2012 FELD Boris <lothiraldan@gmail.com>
# Copyright (c) 2014-2018 Claudiu Popa <pcmanticore@gmail.com>
# Copyright (c) 2014 Google, Inc.
# Copyright (c) 2015 Ionel Cristian Maries <contact@ionelmc.ro>
# Copyright (c) 2016 Derek Gustafson <degustaf@gmail.com>
# Copyright (c) 2018 Reverb C <reverbc@users.noreply.github.com>
# Copyright (c) 2019-2020 Pierre Sassoulas <pierre.sassoulas@gmail.com>
# Copyright (c) 2019 Ashley Whetter <ashley@awhetter.co.uk>
# Copyright (c) 2020 Frank Harrison <frank@doublethefish.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
import os
from os.path import exists
import pytest
import pylint.testutils as testutils
from pylint.checkers import imports, initialize
from pylint.lint import PyLinter
@pytest.fixture
def dest():
dest = "dependencies_graph.dot"
yield dest
try:
os.remove(dest)
except FileNotFoundError:
# file may not have been created if tests inside fixture skipped
pass
def test_dependencies_graph(dest):
imports._dependencies_graph(dest, {"labas": ["hoho", "yep"], "hoho": ["yep"]})
with open(dest) as stream:
assert (
stream.read().strip()
== """
digraph "dependencies_graph" {
rankdir=LR
charset="utf-8"
URL="." node[shape="box"]
"hoho" [];
"yep" [];
"labas" [];
"yep" -> "hoho" [];
"hoho" -> "labas" [];
"yep" -> "labas" [];
}
""".strip()
)
@pytest.fixture
def linter():
l = PyLinter(reporter=testutils.TestReporter())
initialize(l)
return l
@pytest.fixture
def remove_files():
yield
for fname in ("import.dot", "ext_import.dot", "int_import.dot"):
try:
os.remove(fname)
except FileNotFoundError:
pass
@pytest.mark.usefixtures("remove_files")
def test_checker_dep_graphs(linter):
l = linter
l.global_set_option("persistent", False)
l.global_set_option("reports", True)
l.global_set_option("enable", "imports")
l.global_set_option("import-graph", "import.dot")
l.global_set_option("ext-import-graph", "ext_import.dot")
l.global_set_option("int-import-graph", "int_import.dot")
l.global_set_option("int-import-graph", "int_import.dot")
# ignore this file causing spurious MemoryError w/ some python version (>=2.3?)
l.global_set_option("ignore", ("func_unknown_encoding.py",))
l.check("input")
l.generate_reports()
assert exists("import.dot")
assert exists("ext_import.dot")
assert exists("int_import.dot")
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