File: test_shared.py

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"""Test suite for the docx.shared module."""

import pytest

from docx.opc.part import XmlPart
from docx.shared import Cm, ElementProxy, Emu, Inches, Length, Mm, Pt, RGBColor, Twips

from .unitutil.cxml import element
from .unitutil.mock import instance_mock


class DescribeElementProxy:
    def it_knows_when_its_equal_to_another_proxy_object(self, eq_fixture):
        proxy, proxy_2, proxy_3, not_a_proxy = eq_fixture

        assert (proxy == proxy_2) is True
        assert (proxy == proxy_3) is False
        assert (proxy == not_a_proxy) is False

        assert (proxy != proxy_2) is False
        assert (proxy != proxy_3) is True
        assert (proxy != not_a_proxy) is True

    def it_knows_its_element(self, element_fixture):
        proxy, element = element_fixture
        assert proxy.element is element

    def it_knows_its_part(self, part_fixture):
        proxy, part_ = part_fixture
        assert proxy.part is part_

    # fixture --------------------------------------------------------

    @pytest.fixture
    def element_fixture(self):
        p = element("w:p")
        proxy = ElementProxy(p)
        return proxy, p

    @pytest.fixture
    def eq_fixture(self):
        p, q = element("w:p"), element("w:p")
        proxy = ElementProxy(p)
        proxy_2 = ElementProxy(p)
        proxy_3 = ElementProxy(q)
        not_a_proxy = "Foobar"
        return proxy, proxy_2, proxy_3, not_a_proxy

    @pytest.fixture
    def part_fixture(self, other_proxy_, part_):
        other_proxy_.part = part_
        proxy = ElementProxy(None, other_proxy_)
        return proxy, part_

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

    @pytest.fixture
    def other_proxy_(self, request):
        return instance_mock(request, ElementProxy)

    @pytest.fixture
    def part_(self, request):
        return instance_mock(request, XmlPart)


class DescribeLength:
    def it_can_construct_from_convenient_units(self, construct_fixture):
        UnitCls, units_val, emu = construct_fixture
        length = UnitCls(units_val)
        assert isinstance(length, Length)
        assert length == emu

    def it_can_self_convert_to_convenient_units(self, units_fixture):
        emu, units_prop_name, expected_length_in_units, type_ = units_fixture
        length = Length(emu)
        length_in_units = getattr(length, units_prop_name)
        assert length_in_units == expected_length_in_units
        assert isinstance(length_in_units, type_)

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

    @pytest.fixture(
        params=[
            (Length, 914400, 914400),
            (Inches, 1.1, 1005840),
            (Cm, 2.53, 910799),
            (Emu, 9144.9, 9144),
            (Mm, 13.8, 496800),
            (Pt, 24.5, 311150),
            (Twips, 360, 228600),
        ]
    )
    def construct_fixture(self, request):
        UnitCls, units_val, emu = request.param
        return UnitCls, units_val, emu

    @pytest.fixture(
        params=[
            (914400, "inches", 1.0, float),
            (914400, "cm", 2.54, float),
            (914400, "emu", 914400, int),
            (914400, "mm", 25.4, float),
            (914400, "pt", 72.0, float),
            (914400, "twips", 1440, int),
        ]
    )
    def units_fixture(self, request):
        emu, units_prop_name, expected_length_in_units, type_ = request.param
        return emu, units_prop_name, expected_length_in_units, type_


class DescribeRGBColor:
    def it_is_natively_constructed_using_three_ints_0_to_255(self):
        RGBColor(0x12, 0x34, 0x56)
        with pytest.raises(ValueError, match=r"RGBColor\(\) takes three integer valu"):
            RGBColor("12", "34", "56")
        with pytest.raises(ValueError, match=r"\(\) takes three integer values 0-255"):
            RGBColor(-1, 34, 56)
        with pytest.raises(ValueError, match=r"RGBColor\(\) takes three integer valu"):
            RGBColor(12, 256, 56)

    def it_can_construct_from_a_hex_string_rgb_value(self):
        rgb = RGBColor.from_string("123456")
        assert rgb == RGBColor(0x12, 0x34, 0x56)

    def it_can_provide_a_hex_string_rgb_value(self):
        assert str(RGBColor(0x12, 0x34, 0x56)) == "123456"

    def it_has_a_custom_repr(self):
        rgb_color = RGBColor(0x42, 0xF0, 0xBA)
        assert repr(rgb_color) == "RGBColor(0x42, 0xf0, 0xba)"