salt/tests/pytests/unit/modules/test_kmod.py

137 lines
4.5 KiB
Python

import os
import pytest
import salt.modules.kmod as kmod
from salt.exceptions import CommandExecutionError
from tests.support.mock import MagicMock, patch
from tests.support.unit import skipIf
@pytest.fixture
def configure_loader_modules():
return {kmod: {}}
def test_available():
"""
Tests return a list of all available kernel modules
"""
with patch("salt.modules.kmod.available", MagicMock(return_value=["kvm"])):
assert ["kvm"] == kmod.available()
def test_check_available():
"""
Tests if the specified kernel module is available
"""
with patch("salt.modules.kmod.available", MagicMock(return_value=["kvm"])):
assert kmod.check_available("kvm") is True
def test_lsmod():
"""
Tests return information about currently loaded modules
"""
ret_str = """Module Size Used by
kvm_intel 233472 0
"""
expected = [{"size": "233472", "module": "kvm_intel", "depcount": "0", "deps": []}]
mock_cmd = MagicMock(return_value=ret_str)
with patch(
"salt.utils.path.which", MagicMock(side_effect=[None, "/sbin/lsmod"])
), patch.dict(kmod.__salt__, {"cmd.run": mock_cmd}):
with pytest.raises(CommandExecutionError):
kmod.lsmod()
assert expected == kmod.lsmod()
@skipIf(not os.path.isfile("/etc/modules"), "/etc/modules not present")
def test_mod_list():
"""
Tests return a list of the loaded module names
"""
with patch(
"salt.modules.kmod._get_modules_conf",
MagicMock(return_value="/etc/modules"),
):
with patch(
"salt.modules.kmod._strip_module_name", MagicMock(return_value="lp")
):
assert ["lp"] == kmod.mod_list(True)
mock_ret = [{"size": 100, "module": None, "depcount": 10, "deps": None}]
with patch("salt.modules.kmod.lsmod", MagicMock(return_value=mock_ret)):
assert [None] == kmod.mod_list(False)
def test_load():
"""
Tests to loads specified kernel module.
"""
mod = "cheese"
err_msg = "Module too moldy, refusing to load"
mock_persist = MagicMock(return_value={mod})
mock_lsmod = MagicMock(
return_value=[{"size": 100, "module": None, "depcount": 10, "deps": None}]
)
mock_run_all_0 = MagicMock(return_value={"retcode": 0})
mock_run_all_1 = MagicMock(return_value={"retcode": 1, "stderr": err_msg})
with patch("salt.modules.kmod._set_persistent_module", mock_persist):
with patch(
"salt.utils.path.which",
MagicMock(side_effect=[None, "/sbin/modprobe", "/sbin/modprobe"]),
), patch("salt.modules.kmod.lsmod", mock_lsmod):
with patch.dict(
kmod.__salt__, {"cmd.run_all": mock_run_all_0}
), pytest.raises(CommandExecutionError):
kmod.load(mod, True)
with patch.dict(kmod.__salt__, {"cmd.run_all": mock_run_all_0}):
assert [mod] == kmod.load(mod, True)
with patch.dict(kmod.__salt__, {"cmd.run_all": mock_run_all_1}):
assert "Error loading module {}: {}".format(mod, err_msg) == kmod.load(
mod
)
def test_is_loaded():
"""
Tests if specified kernel module is loaded.
"""
with patch("salt.modules.kmod.mod_list", MagicMock(return_value={"lp"})):
assert kmod.is_loaded("lp") is True
def test_remove():
"""
Tests to remove the specified kernel module
"""
mod = "cheese"
err_msg = "Cannot find module: it has been eaten"
mock_persist = MagicMock(return_value={mod})
mock_lsmod = MagicMock(
return_value=[{"size": 100, "module": None, "depcount": 10, "deps": None}]
)
mock_run_all_0 = MagicMock(return_value={"retcode": 0})
mock_run_all_1 = MagicMock(return_value={"retcode": 1, "stderr": err_msg})
with patch("salt.modules.kmod._remove_persistent_module", mock_persist):
with patch(
"salt.utils.path.which",
MagicMock(side_effect=[None, "/sbin/rmmod", "/sbin/rmmod", "/sbin/rmmod"]),
), patch("salt.modules.kmod.lsmod", mock_lsmod):
with patch.dict(kmod.__salt__, {"cmd.run_all": mock_run_all_0}):
with pytest.raises(CommandExecutionError):
kmod.remove(mod)
assert [mod] == kmod.remove(mod, True)
assert [] == kmod.remove(mod)
with patch.dict(kmod.__salt__, {"cmd.run_all": mock_run_all_1}):
assert "Error removing module {}: {}".format(
mod, err_msg
) == kmod.remove(mod, True)