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# This file is part of cloud-init. See LICENSE file for license information.
"""Tests for cloudinit.temp_utils"""
from cloudinit.temp_utils import mkdtemp, mkstemp, tempdir
from tests.unittests.helpers import CiTestCase, wrap_and_call
import os
class TestTempUtils(CiTestCase):
def test_mkdtemp_default_non_root(self):
"""mkdtemp creates a dir under /tmp for the unprivileged."""
calls = []
def fake_mkdtemp(*args, **kwargs):
calls.append(kwargs)
return '/fake/return/path'
retval = wrap_and_call(
'cloudinit.temp_utils',
{'os.getuid': 1000,
'tempfile.mkdtemp': {'side_effect': fake_mkdtemp},
'_TMPDIR': {'new': None},
'os.path.isdir': True},
mkdtemp)
self.assertEqual('/fake/return/path', retval)
self.assertEqual([{'dir': '/tmp'}], calls)
def test_mkdtemp_default_non_root_needs_exe(self):
"""mkdtemp creates a dir under /var/tmp/cloud-init when needs_exe."""
calls = []
def fake_mkdtemp(*args, **kwargs):
calls.append(kwargs)
return '/fake/return/path'
retval = wrap_and_call(
'cloudinit.temp_utils',
{'os.getuid': 1000,
'tempfile.mkdtemp': {'side_effect': fake_mkdtemp},
'_TMPDIR': {'new': None},
'os.path.isdir': True},
mkdtemp, needs_exe=True)
self.assertEqual('/fake/return/path', retval)
self.assertEqual([{'dir': '/var/tmp/cloud-init'}], calls)
def test_mkdtemp_default_root(self):
"""mkdtemp creates a dir under /run/cloud-init for the privileged."""
calls = []
def fake_mkdtemp(*args, **kwargs):
calls.append(kwargs)
return '/fake/return/path'
retval = wrap_and_call(
'cloudinit.temp_utils',
{'os.getuid': 0,
'tempfile.mkdtemp': {'side_effect': fake_mkdtemp},
'_TMPDIR': {'new': None},
'os.path.isdir': True},
mkdtemp)
self.assertEqual('/fake/return/path', retval)
self.assertEqual([{'dir': '/run/cloud-init/tmp'}], calls)
def test_mkstemp_default_non_root(self):
"""mkstemp creates secure tempfile under /tmp for the unprivileged."""
calls = []
def fake_mkstemp(*args, **kwargs):
calls.append(kwargs)
return '/fake/return/path'
retval = wrap_and_call(
'cloudinit.temp_utils',
{'os.getuid': 1000,
'tempfile.mkstemp': {'side_effect': fake_mkstemp},
'_TMPDIR': {'new': None},
'os.path.isdir': True},
mkstemp)
self.assertEqual('/fake/return/path', retval)
self.assertEqual([{'dir': '/tmp'}], calls)
def test_mkstemp_default_root(self):
"""mkstemp creates a secure tempfile in /run/cloud-init for root."""
calls = []
def fake_mkstemp(*args, **kwargs):
calls.append(kwargs)
return '/fake/return/path'
retval = wrap_and_call(
'cloudinit.temp_utils',
{'os.getuid': 0,
'tempfile.mkstemp': {'side_effect': fake_mkstemp},
'_TMPDIR': {'new': None},
'os.path.isdir': True},
mkstemp)
self.assertEqual('/fake/return/path', retval)
self.assertEqual([{'dir': '/run/cloud-init/tmp'}], calls)
def test_tempdir_error_suppression(self):
"""test tempdir suppresses errors during directory removal."""
with self.assertRaises(OSError):
with tempdir(prefix='cloud-init-dhcp-') as tdir:
os.rmdir(tdir)
# As a result, the directory is already gone,
# so shutil.rmtree should raise OSError
with tempdir(rmtree_ignore_errors=True,
prefix='cloud-init-dhcp-') as tdir:
os.rmdir(tdir)
# Since the directory is already gone, shutil.rmtree would raise
# OSError, but we suppress that
# vi: ts=4 expandtab
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