"""Unit test suite for the docx.parts.settings module"""

import pytest

from docx.opc.constants import CONTENT_TYPE as CT
from docx.opc.package import OpcPackage
from docx.opc.part import PartFactory
from docx.package import Package
from docx.parts.settings import SettingsPart
from docx.settings import Settings

from ..unitutil.cxml import element
from ..unitutil.mock import class_mock, instance_mock, method_mock


class DescribeSettingsPart:
    def it_is_used_by_loader_to_construct_settings_part(self, load_, package_, settings_part_):
        partname, blob = "partname", "blob"
        content_type = CT.WML_SETTINGS
        load_.return_value = settings_part_

        part = PartFactory(partname, content_type, None, blob, package_)

        load_.assert_called_once_with(partname, content_type, blob, package_)
        assert part is settings_part_

    def it_provides_access_to_its_settings(self, settings_fixture):
        settings_part, Settings_, settings_ = settings_fixture
        settings = settings_part.settings
        Settings_.assert_called_once_with(settings_part.element)
        assert settings is settings_

    def it_constructs_a_default_settings_part_to_help(self):
        package = OpcPackage()
        settings_part = SettingsPart.default(package)
        assert isinstance(settings_part, SettingsPart)
        assert settings_part.partname == "/word/settings.xml"
        assert settings_part.content_type == CT.WML_SETTINGS
        assert settings_part.package is package
        assert len(settings_part.element) == 6

    # fixtures -------------------------------------------------------

    @pytest.fixture
    def settings_fixture(self, Settings_, settings_):
        settings_elm = element("w:settings")
        settings_part = SettingsPart(None, None, settings_elm, None)
        return settings_part, Settings_, settings_

    # fixture components ---------------------------------------------

    @pytest.fixture
    def load_(self, request):
        return method_mock(request, SettingsPart, "load", autospec=False)

    @pytest.fixture
    def package_(self, request):
        return instance_mock(request, Package)

    @pytest.fixture
    def Settings_(self, request, settings_):
        return class_mock(request, "docx.parts.settings.Settings", return_value=settings_)

    @pytest.fixture
    def settings_(self, request):
        return instance_mock(request, Settings)

    @pytest.fixture
    def settings_part_(self, request):
        return instance_mock(request, SettingsPart)
