"""
unit tests for the stalekey engine
"""

import logging

import salt.engines.stalekey as stalekey
from tests.support.mixins import LoaderModuleMockMixin
from tests.support.mock import MagicMock, mock_open, patch
from tests.support.unit import TestCase

log = logging.getLogger(__name__)


class MockWheel:
    def __init__(self, *args, **kwargs):
        pass

    def cmd(self, *args, **kwargs):
        return True


class EngineStalekeyTestCase(TestCase, LoaderModuleMockMixin):
    """
    Test cases for salt.engine.stalekeys
    """

    def setup_loader_modules(self):
        return {stalekey: {}}

    def test__delete_keys(self):
        """
        Test to ensure the _delete_keys function deletes multiple keys
        """
        with patch("salt.wheel.WheelClient", MockWheel):
            stale_keys = ["minion1", "minion2"]
            minions = {
                "minion1": 1601430462.5281658,
                "minion2": 1601430462.5281658,
            }

            ret = stalekey._delete_keys(stale_keys, minions)
            self.assertEqual(ret, {})

            stale_keys = ["minion1"]
            minions = {
                "minion1": 1601430462.5281658,
                "minion2": 1601430462.5281658,
            }

            ret = stalekey._delete_keys(stale_keys, minions)
            self.assertEqual(ret, {"minion2": 1601430462.5281658})

    def test__read_presence(self):
        """
        Test for _read_presence returning False for no error and minions presence data
        """
        presence_data = {b"minion": 1601477127.532849}
        expected = (False, {"minion": 1601477127.532849})
        with patch("os.path.exists", return_value=True):
            with patch("salt.utils.files.fopen", mock_open()):
                with patch(
                    "salt.utils.msgpack.load", MagicMock(return_value=presence_data)
                ):
                    ret = stalekey._read_presence("presence_file")
                    self.assertEqual(ret, expected)

    def test__write_presence(self):
        """
        Test for _write_presence returning False, meaning no error has occured
        """
        expected = False
        minions = {
            "minion1": 1601430462.5281658,
            "minion2": 1601430462.5281658,
        }
        with patch("salt.utils.files.fopen", mock_open()):
            ret = stalekey._write_presence("presence_file", minions)
            self.assertEqual(ret, expected)