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# This file is part of cloud-init. See LICENSE file for license information.
"""Tests for cloudinit.temp_utils"""
import os
from cloudinit.temp_utils import mkdtemp, mkstemp, tempdir
from tests.unittests.helpers import CiTestCase, wrap_and_call
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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