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import io
from nose.tools import istest
from precisely import assert_that, has_attrs, is_sequence
import mammoth
@istest
def inline_is_available_as_alias_of_img_element():
assert mammoth.images.inline is mammoth.images.img_element
@istest
def data_uri_encodes_images_in_base64():
image_bytes = b"abc"
image = mammoth.documents.Image(
alt_text=None,
content_type="image/jpeg",
open=lambda: io.BytesIO(image_bytes),
)
result = mammoth.images.data_uri(image)
assert_that(result, is_sequence(
has_attrs(attributes={"src": "data:image/jpeg;base64,YWJj"}),
))
@istest
class ImgElementTests:
@istest
def test_when_element_does_not_have_alt_text_then_alt_attribute_is_not_set(self):
image_bytes = b"abc"
image = mammoth.documents.Image(
alt_text=None,
content_type="image/jpeg",
open=lambda: io.BytesIO(image_bytes),
)
@mammoth.images.img_element
def convert_image(image):
return {"src": "<src>"}
result = convert_image(image)
assert_that(result, is_sequence(
has_attrs(attributes={"src": "<src>"}),
))
@istest
def test_when_element_se_alt_text_then_alt_attribute_is_set(self):
image_bytes = b"abc"
image = mammoth.documents.Image(
alt_text="<alt>",
content_type="image/jpeg",
open=lambda: io.BytesIO(image_bytes),
)
@mammoth.images.img_element
def convert_image(image):
return {"src": "<src>"}
result = convert_image(image)
assert_that(result, is_sequence(
has_attrs(attributes={"alt": "<alt>", "src": "<src>"}),
))
@istest
def test_image_alt_text_can_be_overridden_by_alt_attribute_returned_from_function(self):
image_bytes = b"abc"
image = mammoth.documents.Image(
alt_text="<alt>",
content_type="image/jpeg",
open=lambda: io.BytesIO(image_bytes),
)
@mammoth.images.img_element
def convert_image(image):
return {"alt": "<alt override>", "src": "<src>"}
result = convert_image(image)
assert_that(result, is_sequence(
has_attrs(attributes={"alt": "<alt override>", "src": "<src>"}),
))
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