from mock import (
    Mock, patch
)
from pytest import raises

from kiwi.exceptions import KiwiBootImageSetupError
from kiwi.boot.image import BootImage


class TestBootImage:
    def setup(self):
        self.xml_state = Mock()
        self.xml_state.get_initrd_system = Mock(
            return_value='kiwi'
        )

    def test_boot_image_not_implemented(self):
        self.xml_state.get_initrd_system.return_value = 'foo'
        with raises(KiwiBootImageSetupError):
            BootImage.new(self.xml_state, 'target_dir')

    @patch('kiwi.boot.image.builtin_kiwi.BootImageKiwi')
    def test_boot_image_task_kiwi(self, mock_kiwi):
        self.xml_state.get_initrd_system.return_value = 'kiwi'
        BootImage.new(self.xml_state, 'target_dir')
        mock_kiwi.assert_called_once_with(
            self.xml_state, 'target_dir', None, None
        )

    @patch('kiwi.boot.image.dracut.BootImageDracut')
    def test_boot_image_task_dracut(self, mock_dracut):
        self.xml_state.get_initrd_system.return_value = 'dracut'
        BootImage.new(self.xml_state, 'target_dir', 'root_dir')
        mock_dracut.assert_called_once_with(
            self.xml_state, 'target_dir', 'root_dir', None
        )