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# encoding: utf-8
"""Unit test suite for docx.package module"""
from __future__ import absolute_import, division, print_function, unicode_literals
import pytest
from docx.image.image import Image
from docx.opc.packuri import PackURI
from docx.package import ImageParts, Package
from docx.parts.image import ImagePart
from .unitutil.file import docx_path
from .unitutil.mock import class_mock, instance_mock, method_mock, property_mock
class DescribePackage(object):
def it_can_get_or_add_an_image_part_containing_a_specified_image(
self, image_parts_prop_, image_parts_, image_part_
):
image_parts_prop_.return_value = image_parts_
image_parts_.get_or_add_image_part.return_value = image_part_
package = Package()
image_part = package.get_or_add_image_part("image.png")
image_parts_.get_or_add_image_part.assert_called_once_with("image.png")
assert image_part is image_part_
def it_gathers_package_image_parts_after_unmarshalling(self):
package = Package.open(docx_path('having-images'))
image_parts = package.image_parts
assert len(image_parts) == 3
for image_part in image_parts:
assert isinstance(image_part, ImagePart)
# fixture components ---------------------------------------------
@pytest.fixture
def image_part_(self, request):
return instance_mock(request, ImagePart)
@pytest.fixture
def image_parts_(self, request):
return instance_mock(request, ImageParts)
@pytest.fixture
def image_parts_prop_(self, request):
return property_mock(request, Package, "image_parts")
class DescribeImageParts(object):
def it_can_get_a_matching_image_part(
self, Image_, image_, _get_by_sha1_, image_part_
):
Image_.from_file.return_value = image_
image_.sha1 = "f005ba11"
_get_by_sha1_.return_value = image_part_
image_parts = ImageParts()
image_part = image_parts.get_or_add_image_part("image.jpg")
Image_.from_file.assert_called_once_with("image.jpg")
_get_by_sha1_.assert_called_once_with(image_parts, "f005ba11")
assert image_part is image_part_
def but_it_adds_a_new_image_part_when_match_fails(
self, Image_, image_, _get_by_sha1_, _add_image_part_, image_part_
):
Image_.from_file.return_value = image_
image_.sha1 = "fa1afe1"
_get_by_sha1_.return_value = None
_add_image_part_.return_value = image_part_
image_parts = ImageParts()
image_part = image_parts.get_or_add_image_part("image.png")
Image_.from_file.assert_called_once_with("image.png")
_get_by_sha1_.assert_called_once_with(image_parts, "fa1afe1")
_add_image_part_.assert_called_once_with(image_parts, image_)
assert image_part is image_part_
def it_knows_the_next_available_image_partname(self, next_partname_fixture):
image_parts, ext, expected_partname = next_partname_fixture
assert image_parts._next_image_partname(ext) == expected_partname
def it_can_really_add_a_new_image_part(
self, _next_image_partname_, partname_, image_, ImagePart_, image_part_
):
_next_image_partname_.return_value = partname_
ImagePart_.from_image.return_value = image_part_
image_parts = ImageParts()
image_part = image_parts._add_image_part(image_)
ImagePart_.from_image.assert_called_once_with(image_, partname_)
assert image_part in image_parts
assert image_part is image_part_
# fixtures -------------------------------------------------------
@pytest.fixture(params=[((2, 3), 1), ((1, 3), 2), ((1, 2), 3)])
def next_partname_fixture(self, request):
def image_part_with_partname_(n):
partname = image_partname(n)
return instance_mock(request, ImagePart, partname=partname)
def image_partname(n):
return PackURI('/word/media/image%d.png' % n)
existing_partname_numbers, expected_partname_number = request.param
image_parts = ImageParts()
for n in existing_partname_numbers:
image_part_ = image_part_with_partname_(n)
image_parts.append(image_part_)
ext = 'png'
expected_image_partname = image_partname(expected_partname_number)
return image_parts, ext, expected_image_partname
# fixture components ---------------------------------------------
@pytest.fixture
def _add_image_part_(self, request):
return method_mock(request, ImageParts, '_add_image_part')
@pytest.fixture
def _get_by_sha1_(self, request):
return method_mock(request, ImageParts, '_get_by_sha1')
@pytest.fixture
def Image_(self, request):
return class_mock(request, 'docx.package.Image')
@pytest.fixture
def image_(self, request):
return instance_mock(request, Image)
@pytest.fixture
def ImagePart_(self, request):
return class_mock(request, 'docx.package.ImagePart')
@pytest.fixture
def image_part_(self, request):
return instance_mock(request, ImagePart)
@pytest.fixture
def _next_image_partname_(self, request):
return method_mock(request, ImageParts, '_next_image_partname')
@pytest.fixture
def partname_(self, request):
return instance_mock(request, PackURI)
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