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import sys
import os
from logilab.common.testlib import unittest_main, TestCase
from os.path import exists
from cStringIO import StringIO
from pylint.checkers import initialize, imports
from pylint.lint import PyLinter
from pylint.testutils import TestReporter
class DependenciesGraphTC(TestCase):
"""test the imports graph function"""
dest = 'dependencies_graph.dot'
def tearDown(self):
os.remove(self.dest)
def test_dependencies_graph(self):
imports.dependencies_graph(self.dest, {'labas': ['hoho', 'yep'],
'hoho': ['yep']})
self.assertEqual(open(self.dest).read().strip(),
'''
digraph "dependencies_graph" {
rankdir=LR
charset="utf-8"
URL="." node[shape="box"]
"hoho" [];
"yep" [];
"labas" [];
"yep" -> "hoho" [];
"hoho" -> "labas" [];
"yep" -> "labas" [];
}
'''.strip())
class ImportCheckerTC(TestCase):
def setUp(self):
self.linter = l = PyLinter(reporter=TestReporter())
initialize(l)
def test_checker_dep_graphs(self):
l = self.linter
l.global_set_option('persistent', False)
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',))
try:
l.check('input')
self.assert_(exists('import.dot'))
self.assert_(exists('ext_import.dot'))
self.assert_(exists('int_import.dot'))
finally:
for fname in ('import.dot', 'ext_import.dot', 'int_import.dot'):
try:
os.remove(fname)
except:
pass
if __name__ == '__main__':
unittest_main()
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