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run_tests.py
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run_tests.py
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# -*- coding: utf-8 -*-
from flake8.main import application
from flake8_isort import Flake8Isort
from tempfile import mkdtemp
from testfixtures import OutputCapture
import collections
import os
import unittest
class TestFlake8Isort(unittest.TestCase):
def _given_a_file_in_test_dir(self, contents, isort_config):
test_dir = os.path.realpath(mkdtemp())
file_path = os.path.join(test_dir, 'test.py')
isort_path = os.path.join(test_dir, '.isort.cfg')
with open(file_path, 'w') as a_file:
a_file.write(contents)
with open(isort_path, 'w') as a_file:
a_file.write('[settings]\n')
a_file.write(isort_config)
return (file_path, contents)
def test_sorted_correctly_alpha(self):
(file_path, lines) = self._given_a_file_in_test_dir(
'from sys import path\n'
'\n'
'import os\n',
isort_config='force_single_line=True\nforce_alphabetical_sort=True'
)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
ret = list(checker.run())
self.assertEqual(ret, [])
def test_sorted_correctly_default(self):
(file_path, lines) = self._given_a_file_in_test_dir(
'import os\n'
'from sys import path\n',
isort_config=''
)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
ret = list(checker.run())
self.assertEqual(ret, [])
def test_with_eof_blank_lines(self):
"""Pass with eof blank line as flake8 will flag them"""
(file_path, lines) = self._given_a_file_in_test_dir(
'import os\n'
'from sys import path\n'
'\n'
'\n'
' \n',
isort_config=''
)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
ret = list(checker.run())
self.assertEqual(ret, [])
def test_imports_requires_blank_line(self):
(file_path, lines) = self._given_a_file_in_test_dir(
'from __future__ import division\n'
'import threading\n'
'from sys import pid\n',
isort_config=''
)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
ret = list(checker.run())
self.assertEqual(len(ret), 1)
self.assertEqual(ret[0][0], 2)
self.assertEqual(ret[0][1], 0)
self.assertTrue(ret[0][2].startswith('I003 '))
def test_isortcfg_skip_file(self):
(file_path, lines) = self._given_a_file_in_test_dir(
'skipped_file',
isort_config='skip=test.py'
)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
ret = list(checker.run())
self.assertEqual(ret, [])
def test_file_skipped_with_comment(self):
# Note: files skipped in this way are not marked as
# "skipped" by isort <= 4.2.15, so we handle them in a
# different code path and test to ensure they also work.
(file_path, lines) = self._given_a_file_in_test_dir(
'# isort:skip_file',
isort_config=''
)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
ret = list(checker.run())
self.assertEqual(ret, [])
def test_imports_unexpected_blank_line(self):
(file_path, lines) = self._given_a_file_in_test_dir(
'from __future__ import division\n'
'\n'
'import threading\n'
'\n'
'from sys import pid\n',
isort_config=''
)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
ret = list(checker.run())
self.assertEqual(len(ret), 1)
self.assertEqual(ret[0][0], 4)
self.assertEqual(ret[0][1], 0)
self.assertTrue(ret[0][2].startswith('I004 '))
def test_sorted_incorrectly_multiple(self):
(file_path, lines) = self._given_a_file_in_test_dir(
'from __future__ import division\n'
'import os\n'
'from sys import pid\n'
'import threading\n'
'\n'
'import isort\n'
'\n\n\n'
'def func()\n',
isort_config=''
)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
ret = list(checker.run())
self.assertEqual(len(ret), 3)
self.assertEqual(ret[0][0], 2)
self.assertEqual(ret[0][1], 0)
self.assertTrue(ret[0][2].startswith('I003 '))
self.assertEqual(ret[1][0], 4)
self.assertEqual(ret[1][1], 0)
self.assertTrue(ret[1][2].startswith('I001 '))
self.assertEqual(ret[2][0], 9)
self.assertEqual(ret[2][1], 0)
self.assertTrue(ret[2][2].startswith('I004 '))
def test_sorted_incorrectly(self):
(file_path, lines) = self._given_a_file_in_test_dir(
'from sys import pid\n'
'import threading',
isort_config='force_single_line=True'
)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
ret = list(checker.run())
self.assertEqual(len(ret), 1)
self.assertEqual(ret[0][0], 2)
self.assertEqual(ret[0][1], 0)
self.assertTrue(ret[0][2].startswith('I001 '))
def test_empty_file(self):
(file_path, lines) = self._given_a_file_in_test_dir(
'\n\n',
isort_config=''
)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
ret = list(checker.run())
self.assertEqual(ret, [])
def test_wrapped_imports(self):
(file_path, lines) = self._given_a_file_in_test_dir(
'from deluge.common import (fdate, fpcnt, fpeer, fsize, fspeed,\n'
' ftime, get_path_size, is_infohash,\n'
' is_ip, is_magnet, is_url)\n',
isort_config='wrap_length=65'
)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
ret = list(checker.run())
self.assertEqual(ret, [])
def test_force_single_line_imports(self):
(file_path, lines) = self._given_a_file_in_test_dir(
'from plone.app.testing import applyProfile\n'
'from plone.app.testing import FunctionalTesting\n',
isort_config='force_alphabetical_sort=True\nforce_single_line=True'
)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
ret = list(checker.run())
self.assertEqual(ret, [])
def test_missing_add_imports(self):
(file_path, lines) = self._given_a_file_in_test_dir(
'import os',
isort_config='add_imports=from __future__ import unicode_literals'
)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
ret = list(checker.run())
self.assertEqual(len(ret), 2)
self.assertEqual(ret[0][0], 1)
self.assertEqual(ret[0][1], 0)
self.assertTrue(ret[0][2].startswith('I005 '))
self.assertEqual(ret[1][0], 1)
self.assertEqual(ret[1][1], 0)
self.assertTrue(ret[1][2].startswith('I003 '))
def test_isortcfg_found(self):
# _given_a_file_in_test_dir already creates an .isort.cfg file
(file_path, lines) = self._given_a_file_in_test_dir(
'from sys import pid\n'
'import threading',
isort_config='force_single_line=True'
)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
checker.config_file = True
ret = list(checker.run())
self.assertEqual(len(ret), 1)
self.assertEqual(ret[0][0], 2)
self.assertEqual(ret[0][1], 0)
self.assertTrue(ret[0][2].startswith('I001 '))
def test_isortcfg_not_found(self):
(file_path, lines) = self._given_a_file_in_test_dir(
'from sys import pid\n'
'import threading',
isort_config='force_single_line=True'
)
# remove the .isort.cfg file
isortcfg_path = file_path.split('/')[: -1]
isortcfg_path = '{0}/.isort.cfg'.format('/'.join(isortcfg_path))
os.remove(isortcfg_path)
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
checker.search_current = False
checker.config_file = True
ret = list(checker.run())
self.assertEqual(len(ret), 1)
self.assertEqual(ret[0][0], 0)
self.assertEqual(ret[0][1], 0)
self.assertTrue(ret[0][2].startswith('I002 '))
def test_default_option(self):
"""By default a config file (.isort.cfg) is expected"""
(file_path, lines) = self._given_a_file_in_test_dir(
'from sys import pid\n'
'import threading\n',
isort_config='force_single_line=True'
)
with OutputCapture():
app = application.Application()
app.run([file_path, ])
self.assertTrue(Flake8Isort.config_file)
def test_config_file(self):
"""Check that one can force to not look for a config file"""
(file_path, lines) = self._given_a_file_in_test_dir(
'from sys import pid\n'
'import threading\n',
isort_config='force_single_line=True'
)
with OutputCapture():
app = application.Application()
app.run(['--no-isort-config', file_path, ])
self.assertFalse(Flake8Isort.config_file)
def test_isort_formatted_output(self):
options = collections.namedtuple(
'Options', [
'no_isort_config',
'isort_show_traceback',
'stdin_display_name'
]
)
(file_path, lines) = self._given_a_file_in_test_dir(
'from __future__ import division\n'
'import os\n'
'from sys import pid\n',
isort_config=''
)
diff = ' from __future__ import division\n+\n import os'
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
checker.parse_options(options(None, True, 'stdin'))
ret = list(checker.run())
self.assertEqual(len(ret), 1)
self.assertEqual(ret[0][0], 2)
self.assertEqual(ret[0][1], 0)
self.assertIn(diff, ret[0][2])
def test_isort_uses_pyproject_toml_if_available(self):
(file_path, lines) = self._given_a_file_in_test_dir(
'import os\n'
'from sys import path\n',
isort_config=''
)
pyproject_toml_path = os.path.join(
os.path.dirname(file_path), 'pyproject.toml',
)
with open(pyproject_toml_path, 'w') as f:
f.write('[tool.isort]\nlines_between_types=1')
with OutputCapture():
checker = Flake8Isort(None, file_path, lines)
ret = list(checker.run())
self.assertEqual(len(ret), 1)
self.assertEqual(ret[0][0], 2)
self.assertEqual(ret[0][1], 0)
self.assertTrue(ret[0][2].startswith('I003 '))