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import os
import sys
import unittest
import test.support
import email
from email.message import Message
from email._policybase import compat32
from test.test_email import __file__ as landmark
# Run all tests in package for '-m unittest test.test_email'
def load_tests(loader, standard_tests, pattern):
this_dir = os.path.dirname(__file__)
if pattern is None:
pattern = "test*"
package_tests = loader.discover(start_dir=this_dir, pattern=pattern)
standard_tests.addTests(package_tests)
return standard_tests
# used by regrtest and __main__.
def test_main():
here = os.path.dirname(__file__)
# Unittest mucks with the path, so we have to save and restore
# it to keep regrtest happy.
savepath = sys.path[:]
test.support._run_suite(unittest.defaultTestLoader.discover(here))
sys.path[:] = savepath
# helper code used by a number of test modules.
def openfile(filename, *args, **kws):
path = os.path.join(os.path.dirname(landmark), 'data', filename)
return open(path, *args, **kws)
# Base test class
class TestEmailBase(unittest.TestCase):
maxDiff = None
# Currently the default policy is compat32. By setting that as the default
# here we make minimal changes in the test_email tests compared to their
# pre-3.3 state.
policy = compat32
def __init__(self, *args, **kw):
super().__init__(*args, **kw)
self.addTypeEqualityFunc(bytes, self.assertBytesEqual)
# Backward compatibility to minimize test_email test changes.
ndiffAssertEqual = unittest.TestCase.assertEqual
def _msgobj(self, filename):
with openfile(filename) as fp:
return email.message_from_file(fp, policy=self.policy)
def _str_msg(self, string, message=Message, policy=None):
if policy is None:
policy = self.policy
return email.message_from_string(string, message, policy=policy)
def _bytes_repr(self, b):
return [repr(x) for x in b.splitlines(keepends=True)]
def assertBytesEqual(self, first, second, msg):
"""Our byte strings are really encoded strings; improve diff output"""
self.assertEqual(self._bytes_repr(first), self._bytes_repr(second))
def assertDefectsEqual(self, actual, expected):
self.assertEqual(len(actual), len(expected), actual)
for i in range(len(actual)):
self.assertIsInstance(actual[i], expected[i],
'item {}'.format(i))
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