File: test_tempdir.py

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#!/usr/bin/env python

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

"""
tests for mozfile.TemporaryDirectory
"""

import os
import unittest

import mozunit
from mozfile import TemporaryDirectory


class TestTemporaryDirectory(unittest.TestCase):
    def test_removed(self):
        """ensure that a TemporaryDirectory gets removed"""
        path = None
        with TemporaryDirectory() as tmp:
            path = tmp
            self.assertTrue(os.path.isdir(tmp))
            tmpfile = os.path.join(tmp, "a_temp_file")
            open(tmpfile, "w").write("data")
            self.assertTrue(os.path.isfile(tmpfile))
        self.assertFalse(os.path.isdir(path))
        self.assertFalse(os.path.exists(path))

    def test_exception(self):
        """ensure that TemporaryDirectory handles exceptions"""
        path = None
        with self.assertRaises(Exception):
            with TemporaryDirectory() as tmp:
                path = tmp
                self.assertTrue(os.path.isdir(tmp))
                raise Exception("oops")
        self.assertFalse(os.path.isdir(path))
        self.assertFalse(os.path.exists(path))


if __name__ == "__main__":
    mozunit.main()