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import pytest
from cloudinit import util
from cloudinit.tests.helpers import CiTestCase
class TestDisableSubpUsage:
"""Test that the disable_subp_usage fixture behaves as expected."""
def test_using_subp_raises_assertion_error(self):
with pytest.raises(AssertionError):
util.subp(["some", "args"])
def test_typeerrors_on_incorrect_usage(self):
with pytest.raises(TypeError):
# We are intentionally passing no value for a parameter, so:
# pylint: disable=no-value-for-parameter
util.subp()
@pytest.mark.parametrize('disable_subp_usage', [False], indirect=True)
def test_subp_usage_can_be_reenabled(self):
util.subp(['whoami'])
@pytest.mark.parametrize(
'disable_subp_usage', [['whoami'], 'whoami'], indirect=True)
def test_subp_usage_can_be_conditionally_reenabled(self):
# The two parameters test each potential invocation with a single
# argument
with pytest.raises(AssertionError) as excinfo:
util.subp(["some", "args"])
assert "allowed: whoami" in str(excinfo.value)
util.subp(['whoami'])
@pytest.mark.parametrize(
'disable_subp_usage', [['whoami', 'bash']], indirect=True)
def test_subp_usage_can_be_conditionally_reenabled_for_multiple_cmds(self):
with pytest.raises(AssertionError) as excinfo:
util.subp(["some", "args"])
assert "allowed: whoami,bash" in str(excinfo.value)
util.subp(['bash', '-c', 'true'])
util.subp(['whoami'])
class TestDisableSubpUsageInTestSubclass(CiTestCase):
"""Test that disable_subp_usage doesn't impact CiTestCase's subp logic."""
def test_using_subp_raises_exception(self):
with pytest.raises(Exception):
util.subp(["some", "args"])
def test_typeerrors_on_incorrect_usage(self):
with pytest.raises(TypeError):
util.subp()
def test_subp_usage_can_be_reenabled(self):
_old_allowed_subp = self.allow_subp
self.allowed_subp = True
try:
util.subp(['bash', '-c', 'true'])
finally:
self.allowed_subp = _old_allowed_subp
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