# -*- coding: utf-8 -*-
"""
    :synopsis: Base class for kernelpkg modules
    :platform: Linux
    :maturity: develop
    .. versionadded:: 2018.3.0
"""
# pylint: disable=invalid-name,no-member

from __future__ import absolute_import, print_function, unicode_literals

# Salt testing libs
try:
    from tests.support.mock import MagicMock, patch
    from salt.exceptions import CommandExecutionError
except ImportError:
    pass


class KernelPkgTestCase(object):
    """
    Test cases shared by all kernelpkg virtual modules
    """

    def test_active(self):
        """
        Test - Return return the active kernel version
        """
        self.assertEqual(self._kernelpkg.active(), self.KERNEL_LIST[0])

    def test_latest_available_no_results(self):
        """
        Test - Return the latest available kernel version
        """
        mock = MagicMock(return_value="")
        with patch.dict(self._kernelpkg.__salt__, {"pkg.latest_version": mock}):
            with patch.object(
                self._kernelpkg, "active", return_value=self.KERNEL_LIST[0]
            ):
                self.assertEqual(
                    self._kernelpkg.latest_available(), self.KERNEL_LIST[-1]
                )

    def test_latest_available_at_latest(self):
        """
        Test - Return the latest available kernel version
        """
        mock = MagicMock(return_value=self.LATEST)
        with patch.dict(self._kernelpkg.__salt__, {"pkg.latest_version": mock}):
            with patch.object(
                self._kernelpkg, "active", return_value=self.KERNEL_LIST[-1]
            ):
                self.assertEqual(
                    self._kernelpkg.latest_available(), self.KERNEL_LIST[-1]
                )

    def test_latest_available_with_updates(self):
        """
        Test - Return the latest available kernel version
        """
        mock = MagicMock(return_value=self.LATEST)
        with patch.dict(self._kernelpkg.__salt__, {"pkg.latest_version": mock}):
            with patch.object(
                self._kernelpkg, "active", return_value=self.KERNEL_LIST[0]
            ):
                self.assertEqual(
                    self._kernelpkg.latest_available(), self.KERNEL_LIST[-1]
                )

    def test_latest_installed_with_updates(self):
        """
        Test - Return the latest installed kernel version
        """
        with patch.object(self._kernelpkg, "active", return_value=self.KERNEL_LIST[0]):
            with patch.object(
                self._kernelpkg, "list_installed", return_value=self.KERNEL_LIST
            ):
                self.assertEqual(
                    self._kernelpkg.latest_installed(), self.KERNEL_LIST[-1]
                )

    def test_latest_installed_at_latest(self):
        """
        Test - Return the latest installed kernel version
        """
        with patch.object(self._kernelpkg, "active", return_value=self.KERNEL_LIST[-1]):
            with patch.object(
                self._kernelpkg, "list_installed", return_value=self.KERNEL_LIST
            ):
                self.assertEqual(
                    self._kernelpkg.latest_installed(), self.KERNEL_LIST[-1]
                )

    def test_needs_reboot_with_update(self):
        """
        Test - Return True if a new kernel is ready to be booted
        """
        with patch.object(self._kernelpkg, "active", return_value=self.KERNEL_LIST[0]):
            with patch.object(
                self._kernelpkg, "latest_installed", return_value=self.KERNEL_LIST[1]
            ):
                self.assertTrue(self._kernelpkg.needs_reboot())

    def test_needs_reboot_at_latest(self):
        """
        Test - Return True if a new kernel is ready to be booted
        """
        with patch.object(self._kernelpkg, "active", return_value=self.KERNEL_LIST[1]):
            with patch.object(
                self._kernelpkg, "latest_installed", return_value=self.KERNEL_LIST[1]
            ):
                self.assertFalse(self._kernelpkg.needs_reboot())

    def test_needs_reboot_order_inverted(self):
        """
        Test - Return True if a new kernel is ready to be booted
        """
        with patch.object(self._kernelpkg, "active", return_value=self.KERNEL_LIST[1]):
            with patch.object(
                self._kernelpkg, "latest_installed", return_value=self.KERNEL_LIST[0]
            ):
                self.assertFalse(self._kernelpkg.needs_reboot())

    def test_upgrade_not_needed_with_reboot(self):
        """
        Test - Upgrade function when no upgrade is available and reboot has been requested
        """
        with patch.object(self._kernelpkg, "active", return_value=self.KERNEL_LIST[-1]):
            with patch.object(
                self._kernelpkg, "list_installed", return_value=self.KERNEL_LIST
            ):
                result = self._kernelpkg.upgrade(reboot=True)
                self.assertIn("upgrades", result)
                self.assertEqual(result["active"], self.KERNEL_LIST[-1])
                self.assertEqual(result["latest_installed"], self.KERNEL_LIST[-1])
                self.assertEqual(result["reboot_requested"], True)
                self.assertEqual(result["reboot_required"], False)
                self._kernelpkg.__salt__["system.reboot"].assert_not_called()

    def test_upgrade_not_needed_without_reboot(self):
        """
        Test - Upgrade function when no upgrade is available and no reboot has been requested
        """
        with patch.object(self._kernelpkg, "active", return_value=self.KERNEL_LIST[-1]):
            with patch.object(
                self._kernelpkg, "list_installed", return_value=self.KERNEL_LIST
            ):
                result = self._kernelpkg.upgrade(reboot=False)
                self.assertIn("upgrades", result)
                self.assertEqual(result["active"], self.KERNEL_LIST[-1])
                self.assertEqual(result["latest_installed"], self.KERNEL_LIST[-1])
                self.assertEqual(result["reboot_requested"], False)
                self.assertEqual(result["reboot_required"], False)
                self._kernelpkg.__salt__["system.reboot"].assert_not_called()

    def test_upgrade_needed_with_reboot(self):
        """
        Test - Upgrade function when an upgrade is available and reboot has been requested
        """
        with patch.object(self._kernelpkg, "active", return_value=self.KERNEL_LIST[0]):
            with patch.object(
                self._kernelpkg, "list_installed", return_value=self.KERNEL_LIST
            ):
                result = self._kernelpkg.upgrade(reboot=True)
                self.assertIn("upgrades", result)
                self.assertEqual(result["active"], self.KERNEL_LIST[0])
                self.assertEqual(result["latest_installed"], self.KERNEL_LIST[-1])
                self.assertEqual(result["reboot_requested"], True)
                self.assertEqual(result["reboot_required"], True)
                self.assert_called_once(self._kernelpkg.__salt__["system.reboot"])

    def test_upgrade_needed_without_reboot(self):
        """
        Test - Upgrade function when an upgrade is available and no reboot has been requested
        """
        with patch.object(self._kernelpkg, "active", return_value=self.KERNEL_LIST[0]):
            with patch.object(
                self._kernelpkg, "list_installed", return_value=self.KERNEL_LIST
            ):
                result = self._kernelpkg.upgrade(reboot=False)
                self.assertIn("upgrades", result)
                self.assertEqual(result["active"], self.KERNEL_LIST[0])
                self.assertEqual(result["latest_installed"], self.KERNEL_LIST[-1])
                self.assertEqual(result["reboot_requested"], False)
                self.assertEqual(result["reboot_required"], True)
                self._kernelpkg.__salt__["system.reboot"].assert_not_called()

    def test_upgrade_available_true(self):
        """
        Test - upgrade_available
        """
        with patch.object(
            self._kernelpkg, "latest_available", return_value=self.KERNEL_LIST[-1]
        ):
            with patch.object(
                self._kernelpkg, "latest_installed", return_value=self.KERNEL_LIST[0]
            ):
                self.assertTrue(self._kernelpkg.upgrade_available())

    def test_upgrade_available_false(self):
        """
        Test - upgrade_available
        """
        with patch.object(
            self._kernelpkg, "latest_available", return_value=self.KERNEL_LIST[-1]
        ):
            with patch.object(
                self._kernelpkg, "latest_installed", return_value=self.KERNEL_LIST[-1]
            ):
                self.assertFalse(self._kernelpkg.upgrade_available())

    def test_upgrade_available_inverted(self):
        """
        Test - upgrade_available
        """
        with patch.object(
            self._kernelpkg, "latest_available", return_value=self.KERNEL_LIST[0]
        ):
            with patch.object(
                self._kernelpkg, "latest_installed", return_value=self.KERNEL_LIST[-1]
            ):
                self.assertFalse(self._kernelpkg.upgrade_available())

    def test_remove_active(self):
        """
        Test - remove kernel package
        """
        mock = MagicMock(return_value={"retcode": 0, "stderr": []})
        with patch.dict(self._kernelpkg.__salt__, {"cmd.run_all": mock}):
            with patch.object(
                self._kernelpkg, "active", return_value=self.KERNEL_LIST[-1]
            ):
                with patch.object(
                    self._kernelpkg, "list_installed", return_value=self.KERNEL_LIST
                ):
                    self.assertRaises(
                        CommandExecutionError,
                        self._kernelpkg.remove,
                        release=self.KERNEL_LIST[-1],
                    )
                    self._kernelpkg.__salt__["cmd.run_all"].assert_not_called()

    def test_remove_invalid(self):
        """
        Test - remove kernel package
        """
        mock = MagicMock(return_value={"retcode": 0, "stderr": []})
        with patch.dict(self._kernelpkg.__salt__, {"cmd.run_all": mock}):
            with patch.object(
                self._kernelpkg, "active", return_value=self.KERNEL_LIST[-1]
            ):
                with patch.object(
                    self._kernelpkg, "list_installed", return_value=self.KERNEL_LIST
                ):
                    self.assertRaises(
                        CommandExecutionError, self._kernelpkg.remove, release="invalid"
                    )
                    self._kernelpkg.__salt__["cmd.run_all"].assert_not_called()
