1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
# Copyright 2009 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Tests that ensure that the `tempfile` module works with `fake_filesystem`
if using `Patcher` (via `fake_filesystem_unittest`).
"""
import os
import stat
import tempfile
import unittest
from pyfakefs import fake_filesystem_unittest
class FakeTempfileModuleTest(fake_filesystem_unittest.TestCase):
"""Test the 'tempfile' module with the fake file system."""
def setUp(self):
self.setUpPyfakefs()
def test_named_temporary_file(self):
obj = tempfile.NamedTemporaryFile()
self.assertTrue(self.fs.get_object(obj.name))
obj.close()
with self.assertRaises(OSError):
self.fs.get_object(obj.name)
def test_named_temporary_file_no_delete(self):
obj = tempfile.NamedTemporaryFile(delete=False)
obj.write(b'foo')
obj.close()
file_obj = self.fs.get_object(obj.name)
contents = file_obj.contents
self.assertEqual('foo', contents)
obj = tempfile.NamedTemporaryFile(mode='w', delete=False)
obj.write('foo')
obj.close()
file_obj = self.fs.get_object(obj.name)
self.assertEqual('foo', file_obj.contents)
def test_mkstemp(self):
next_fd = len(self.fs.open_files)
temporary = tempfile.mkstemp()
self.assertEqual(2, len(temporary))
self.assertTrue(
temporary[1].startswith(
os.path.join(tempfile.gettempdir(), 'tmp')))
self.assertEqual(next_fd, temporary[0])
self.assertTrue(self.fs.exists(temporary[1]))
mode = 0o666 if self.fs.is_windows_fs else 0o600
self.assertEqual(self.fs.get_object(temporary[1]).st_mode,
stat.S_IFREG | mode)
fh = os.fdopen(temporary[0], 'w+b')
self.assertEqual(temporary[0], fh.fileno())
def test_mkstemp_dir(self):
"""test tempfile.mkstemp(dir=)."""
# expect fail: /dir does not exist
with self.assertRaises(OSError):
tempfile.mkstemp(dir='/dir')
# expect pass: /dir exists
self.fs.create_dir('/dir')
next_fd = len(self.fs.open_files)
temporary = tempfile.mkstemp(dir='/dir')
self.assertEqual(2, len(temporary))
self.assertEqual(next_fd, temporary[0])
self.assertTrue(temporary[1].startswith(
os.path.join(os.sep, 'dir', 'tmp')))
self.assertTrue(self.fs.exists(temporary[1]))
mode = 0o666 if self.fs.is_windows_fs else 0o600
self.assertEqual(self.fs.get_object(temporary[1]).st_mode,
stat.S_IFREG | mode)
def test_mkdtemp(self):
dirname = tempfile.mkdtemp()
self.assertTrue(dirname)
self.assertTrue(self.fs.exists(dirname))
self.assertEqual(self.fs.get_object(dirname).st_mode,
stat.S_IFDIR | 0o700)
def test_temporary_directory(self):
with tempfile.TemporaryDirectory() as tmpdir:
self.assertTrue(tmpdir)
self.assertTrue(self.fs.exists(tmpdir))
self.assertEqual(self.fs.get_object(tmpdir).st_mode,
stat.S_IFDIR | 0o700)
def test_temporary_file(self):
with tempfile.TemporaryFile() as f:
f.write(b'test')
f.seek(0)
self.assertEqual(b'test', f.read())
def test_temporay_file_with_dir(self):
with self.assertRaises(FileNotFoundError):
tempfile.TemporaryFile(dir='/parent')
os.mkdir('/parent')
with tempfile.TemporaryFile() as f:
f.write(b'test')
f.seek(0)
self.assertEqual(b'test', f.read())
if __name__ == '__main__':
unittest.main()
|
