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import io
from zipfile import ZipFile
from nose.tools import istest, assert_equal
from mammoth.docx.style_map import write_style_map, read_style_map
from mammoth.zips import open_zip
@istest
def reading_embedded_style_map_on_document_without_embedded_style_map_returns_none():
fileobj = _normal_docx()
assert_equal(None, read_style_map(fileobj))
@istest
def writing_style_map_preserves_unrelated_files():
fileobj = _normal_docx()
write_style_map(fileobj, "p => h1")
with open_zip(fileobj, "r") as zip_file:
assert_equal("placeholder", zip_file.read_str("placeholder"))
@istest
def embedded_style_map_can_be_read_after_being_written():
fileobj = _normal_docx()
write_style_map(fileobj, "p => h1")
assert_equal("p => h1", read_style_map(fileobj))
@istest
def embedded_style_map_is_written_to_separate_file():
fileobj = _normal_docx()
write_style_map(fileobj, "p => h1")
with open_zip(fileobj, "r") as zip_file:
assert_equal("p => h1", zip_file.read_str("mammoth/style-map"))
@istest
def can_overwrite_existing_style_map():
fileobj = _normal_docx()
write_style_map(fileobj, "p => h1")
write_style_map(fileobj, "p => h2")
with open_zip(fileobj, "r") as zip_file:
assert_equal("p => h2", read_style_map(fileobj))
_assert_no_duplicates(zip_file._zip_file.namelist())
def _normal_docx():
fileobj = io.BytesIO()
zip_file = ZipFile(fileobj, "w")
try:
zip_file.writestr("placeholder", "placeholder")
finally:
zip_file.close()
return fileobj
def _assert_no_duplicates(values):
counts = {}
for value in values:
counts[value] = counts.get(value, 0) + 1
for value, count in counts.items():
if count != 1:
assert False, "{0} has count of {1}".format(value, count)
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