test_basic.py
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""" Test some basic behaviour of msodde.py
Ensure that
- doc and docx are read without error
- garbage returns error return status
- dde-links are found where appropriate
"""
from __future__ import print_function
import unittest
from oletools import msodde
import shlex
from os.path import join, dirname, normpath
import sys
# python 2/3 version conflict:
if sys.version_info.major <= 2:
from StringIO import StringIO
#from io import BytesIO as StringIO - try if print() gives UnicodeError
else:
from io import StringIO
# base directory for test input
BASE_DIR = normpath(join(dirname(__file__), '..', 'test-data'))
class TestReturnCode(unittest.TestCase):
def test_valid_doc(self):
""" check that a valid doc file leads to 0 exit status """
print(join(BASE_DIR, 'msodde-doc/test_document.doc'))
self.do_test_validity(join(BASE_DIR, 'msodde-doc/test_document.doc'))
def test_valid_docx(self):
""" check that a valid docx file leads to 0 exit status """
self.do_test_validity(join(BASE_DIR, 'msodde-doc/test_document.docx'))
def test_invalid_none(self):
""" check that no file argument leads to non-zero exit status """
self.do_test_validity('', True)
def test_invalid_empty(self):
""" check that empty file argument leads to non-zero exit status """
self.do_test_validity(join(BASE_DIR, 'basic/empty'), True)
def test_invalid_text(self):
""" check that text file argument leads to non-zero exit status """
self.do_test_validity(join(BASE_DIR, 'basic/text'), True)
def do_test_validity(self, args, expect_error=False):
""" helper for test_valid_doc[x] """
args = shlex.split(args)
return_code = -1
have_exception = False
try:
return_code = msodde.main(args)
except Exception:
have_exception = True
except SystemExit as se: # sys.exit() was called
return_code = se.code
if se.code is None:
return_code = 0
self.assertEqual(expect_error, have_exception or (return_code != 0))
class OutputCapture:
""" context manager that captures stdout """
def __init__(self):
self.output = StringIO() # in py2, this actually is BytesIO
def __enter__(self):
sys.stdout = self.output
return self
def __exit__(self, exc_type, exc_value, traceback):
sys.stdout = sys.__stdout__ # re-set to original
if exc_type: # there has been an error
print('Got error during output capture!')
print('Print captured output and re-raise:')
for line in self.output.getvalue().splitlines():
print(line.rstrip()) # print output before re-raising
def __iter__(self):
for line in self.output.getvalue().splitlines():
yield line.rstrip() # remove newline at end of line
class TestDdeInDoc(unittest.TestCase):
def test_with_dde(self):
""" check that dde links appear on stdout """
with OutputCapture() as capturer:
msodde.main([join(BASE_DIR, 'msodde-doc', 'dde-test.doc')])
for line in capturer:
print(line)
pass # we just want to get the last line
self.assertNotEqual(len(line.strip()), 0)
def test_no_dde(self):
""" check that no dde links appear on stdout """
with OutputCapture() as capturer:
msodde.main([join(BASE_DIR, 'msodde-doc', 'test_document.doc')])
for line in capturer:
print(line)
pass # we just want to get the last line
self.assertEqual(line.strip(), '')
if __name__ == '__main__':
unittest.main()