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✏️ test_dep_util.py

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"""Tests for distutils.dep_util."""
import unittest
import os
import time

from distutils.dep_util import newer, newer_pairwise, newer_group
from distutils.errors import DistutilsFileError
from distutils.tests import support
from test.test_support import run_unittest

class DepUtilTestCase(support.TempdirManager, unittest.TestCase):

def test_newer(self):

tmpdir = self.mkdtemp()
        new_file = os.path.join(tmpdir, 'new')
        old_file = os.path.abspath(__file__)

# Raise DistutilsFileError if 'new_file' does not exist.
        self.assertRaises(DistutilsFileError, newer, new_file, old_file)

# Return true if 'new_file' exists and is more recently modified than
        # 'old_file', or if 'new_file' exists and 'old_file' doesn't.
        self.write_file(new_file)
        self.assertTrue(newer(new_file, 'I_dont_exist'))
        self.assertTrue(newer(new_file, old_file))

# Return false if both exist and 'old_file' is the same age or younger
        # than 'new_file'.
        self.assertFalse(newer(old_file, new_file))

def test_newer_pairwise(self):
        tmpdir = self.mkdtemp()
        sources = os.path.join(tmpdir, 'sources')
        targets = os.path.join(tmpdir, 'targets')
        os.mkdir(sources)
        os.mkdir(targets)
        one = os.path.join(sources, 'one')
        two = os.path.join(sources, 'two')
        three = os.path.abspath(__file__)    # I am the old file
        four = os.path.join(targets, 'four')
        self.write_file(one)
        self.write_file(two)
        self.write_file(four)

self.assertEqual(newer_pairwise([one, two], [three, four]),
                         ([one],[three]))

def test_newer_group(self):
        tmpdir = self.mkdtemp()
        sources = os.path.join(tmpdir, 'sources')
        os.mkdir(sources)
        one = os.path.join(sources, 'one')
        two = os.path.join(sources, 'two')
        three = os.path.join(sources, 'three')
        old_file = os.path.abspath(__file__)

# return true if 'old_file' is out-of-date with respect to any file
        # listed in 'sources'.
        self.write_file(one)
        self.write_file(two)
        self.write_file(three)
        self.assertTrue(newer_group([one, two, three], old_file))
        self.assertFalse(newer_group([one, two, old_file], three))

# missing handling
        os.remove(one)
        self.assertRaises(OSError, newer_group, [one, two, old_file], three)

self.assertFalse(newer_group([one, two, old_file], three,
                                     missing='ignore'))

self.assertTrue(newer_group([one, two, old_file], three,
                                    missing='newer'))

def test_suite():
    return unittest.makeSuite(DepUtilTestCase)

if __name__ == "__main__":
    run_unittest(test_suite())

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✏️ test_dep_util.py