import datetime
import textwrap
import unittest
from email import errors
from email import policy
from email.message import Message
from test.test_email import TestEmailBase, parameterize
from email import headerregistry
from email.headerregistry import Address, Group
class TestHeaderRegistry(TestEmailBase):
def test_arbitrary_name_unstructured(self):
factory = headerregistry.HeaderRegistry()
h = factory('foobar', 'test')
self.assertIsInstance(h, headerregistry.BaseHeader)
self.assertIsInstance(h, headerregistry.UnstructuredHeader)
def test_name_case_ignored(self):
factory = headerregistry.HeaderRegistry()
# Whitebox check that test is valid
self.assertNotIn('Subject', factory.registry)
h = factory('Subject', 'test')
self.assertIsInstance(h, headerregistry.BaseHeader)
self.assertIsInstance(h, headerregistry.UniqueUnstructuredHeader)
class FooBase:
def __init__(self, *args, **kw):
pass
def test_override_default_base_class(self):
factory = headerregistry.HeaderRegistry(base_class=self.FooBase)
h = factory('foobar', 'test')
self.assertIsInstance(h, self.FooBase)
self.assertIsInstance(h, headerregistry.UnstructuredHeader)
class FooDefault:
parse = headerregistry.UnstructuredHeader.parse
def test_override_default_class(self):
factory = headerregistry.HeaderRegistry(default_class=self.FooDefault)
h = factory('foobar', 'test')
self.assertIsInstance(h, headerregistry.BaseHeader)
self.assertIsInstance(h, self.FooDefault)
def test_override_default_class_only_overrides_default(self):
factory = headerregistry.HeaderRegistry(default_class=self.FooDefault)
h = factory('subject', 'test')
self.assertIsInstance(h, headerregistry.BaseHeader)
self.assertIsInstance(h, headerregistry.UniqueUnstructuredHeader)
def test_dont_use_default_map(self):
factory = headerregistry.HeaderRegistry(use_default_map=False)
h = factory('subject', 'test')
self.assertIsInstance(h, headerregistry.BaseHeader)
self.assertIsInstance(h, headerregistry.UnstructuredHeader)
def test_map_to_type(self):
factory = headerregistry.HeaderRegistry()
h1 = factory('foobar', 'test')
factory.map_to_type('foobar', headerregistry.UniqueUnstructuredHeader)
h2 = factory('foobar', 'test')
self.assertIsInstance(h1, headerregistry.BaseHeader)
self.assertIsInstance(h1, headerregistry.UnstructuredHeader)
self.assertIsInstance(h2, headerregistry.BaseHeader)
self.assertIsInstance(h2, headerregistry.UniqueUnstructuredHeader)
class TestHeaderBase(TestEmailBase):
factory = headerregistry.HeaderRegistry()
def make_header(self, name, value):
return self.factory(name, value)
class TestBaseHeaderFeatures(TestHeaderBase):
def test_str(self):
h = self.make_header('subject', 'this is a test')
self.assertIsInstance(h, str)
self.assertEqual(h, 'this is a test')
self.assertEqual(str(h), 'this is a test')
def test_substr(self):
h = self.make_header('subject', 'this is a test')
self.assertEqual(h[5:7], 'is')
def test_has_name(self):
h = self.make_header('subject', 'this is a test')
self.assertEqual(h.name, 'subject')
def _test_attr_ro(self, attr):
h = self.make_header('subject', 'this is a test')
with self.assertRaises(AttributeError):
setattr(h, attr, 'foo')
def test_name_read_only(self):
self._test_attr_ro('name')
def test_defects_read_only(self):
self._test_attr_ro('defects')
def test_defects_is_tuple(self):
h = self.make_header('subject', 'this is a test')
self.assertEqual(len(h.defects), 0)
self.assertIsInstance(h.defects, tuple)
# Make sure it is still true when there are defects.
h = self.make_header('date', '')
self.assertEqual(len(h.defects), 1)
self.assertIsInstance(h.defects, tuple)
# XXX: FIXME
#def test_CR_in_value(self):
# # XXX: this also re-raises the issue of embedded headers,
# # need test and solution for that.
# value = '\r'.join(['this is', ' a test'])
# h = self.make_header('subject', value)
# self.assertEqual(h, value)
# self.assertDefectsEqual(h.defects, [errors.ObsoleteHeaderDefect])
def test_RFC2047_value_decoded(self):
value = '=?utf-8?q?this_is_a_test?='
h = self.make_header('subject', value)
self.assertEqual(h, 'this is a test')
class TestDateHeader(TestHeaderBase):
datestring = 'Sun, 23 Sep 2001 20:10:55 -0700'
utcoffset = datetime.timedelta(hours=-7)
tz = datetime.timezone(utcoffset)
dt = datetime.datetime(2001, 9, 23, 20, 10, 55, tzinfo=tz)
def test_parse_date(self):
h = self.make_header('date', self.datestring)
self.assertEqual(h, self.datestring)
self.assertEqual(h.datetime, self.dt)
self.assertEqual(h.datetime.utcoffset(), self.utcoffset)
self.assertEqual(h.defects, ())
def test_set_from_datetime(self):
h = self.make_header('date', self.dt)
self.assertEqual(h, self.datestring)
self.assertEqual(h.datetime, self.dt)
self.assertEqual(h.defects, ())
def test_date_header_properties(self):
h = self.make_header('date', self.datestring)
self.assertIsInstance(h, headerregistry.UniqueDateHeader)
self.assertEqual(h.max_count, 1)
self.assertEqual(h.defects, ())
def test_resent_date_header_properties(self):
h = self.make_header('resent-date', self.datestring)
self.assertIsInstance(h, headerregistry.DateHeader)
self.assertEqual(h.max_count, None)
self.assertEqual(h.defects, ())
def test_no_value_is_defect(self):
h = self.make_header('date', '')
self.assertEqual(len(h.defects), 1)
self.assertIsInstance(h.defects[0], errors.HeaderMissingRequiredValue)
def test_datetime_read_only(self):
h = self.make_header('date', self.datestring)
with self.assertRaises(AttributeError):
h.datetime = 'foo'
def test_set_date_header_from_datetime(self):
m = Message(policy=policy.default)
m['Date'] = self.dt
self.assertEqual(m['Date'], self.datestring)
self.assertEqual(m['Date'].datetime, self.dt)
@parameterize
class TestAddressHeader(TestHeaderBase):
example_params = {
'empty':
('<>',
[errors.InvalidHeaderDefect],
'<>',
'',
'<>',
'',
'',
None),
'address_only':
('zippy@pinhead.com',
[],
'zippy@pinhead.com',
'',
'zippy@pinhead.com',
'zippy',
'pinhead.com',
None),
'name_and_address':
('Zaphrod Beblebrux <zippy@pinhead.com>',
[],
'Zaphrod Beblebrux <zippy@pinhead.com>',
'Zaphrod Beblebrux',
'zippy@pinhead.com',
'zippy',
'pinhead.com',
None),
'quoted_local_part':
('Zaphrod Beblebrux <"foo bar"@pinhead.com>',
[],
'Zaphrod Beblebrux <"foo bar"@pinhead.com>',
'Zaphrod Beblebrux',
'"foo bar"@pinhead.com',
'foo bar',
'pinhead.com',
None),
'quoted_parens_in_name':
(r'"A \(Special\) Person" <person@dom.ain>',
[],
'"A (Special) Person" <person@dom.ain>',
'A (Special) Person',
'person@dom.ain',
'person',
'dom.ain',
None),
'quoted_backslashes_in_name':
(r'"Arthur \\Backslash\\ Foobar" <person@dom.ain>',
[],
r'"Arthur \\Backslash\\ Foobar" <person@dom.ain>',
r'Arthur \Backslash\ Foobar',
'person@dom.ain',
'person',
'dom.ain',
None),
'name_with_dot':
('John X. Doe <jxd@example.com>',
[errors.ObsoleteHeaderDefect],
'"John X. Doe" <jxd@example.com>',
'John X. Doe',
'jxd@example.com',
'jxd',
'example.com',
None),
'quoted_strings_in_local_part':
('""example" example"@example.com',
[errors.InvalidHeaderDefect]*3,
'"example example"@example.com',
'',
'"example example"@example.com',
'example example',
'example.com',
None),
'escaped_quoted_strings_in_local_part':
(r'"\"example\" example"@example.com',
[],
r'"\"example\" example"@example.com',
'',
r'"\"example\" example"@example.com',
r'"example" example',
'example.com',
None),
'escaped_escapes_in_local_part':
(r'"\\"example\\" example"@example.com',
[errors.InvalidHeaderDefect]*5,
r'"\\example\\\\ example"@example.com',
'',
r'"\\example\\\\ example"@example.com',
r'\example\\ example',
'example.com',
None),
'spaces_in_unquoted_local_part_collapsed':
('merwok wok @example.com',
[errors.InvalidHeaderDefect]*2,
'"merwok wok"@example.com',
'',
'"merwok wok"@example.com',
'merwok wok',
'example.com',
None),
'spaces_around_dots_in_local_part_removed':
('merwok. wok . wok@example.com',
[errors.ObsoleteHeaderDefect],
'merwok.wok.wok@example.com',
'',
'merwok.wok.wok@example.com',
'merwok.wok.wok',
'example.com',
None),
}
# XXX: Need many more examples, and in particular some with names in
# trailing comments, which aren't currently handled. comments in
# general are not handled yet.
def example_as_address(self, source, defects, decoded, display_name,
addr_spec, username, domain, comment):
h = self.make_header('sender', source)
self.assertEqual(h, decoded)
self.assertDefectsEqual(h.defects, defects)
a = h.address
self.assertEqual(str(a), decoded)
self.assertEqual(len(h.groups), 1)
self.assertEqual([a], list(h.groups[0].addresses))
self.assertEqual([a], list(h.addresses))
self.assertEqual(a.display_name, display_name)
self.assertEqual(a.addr_spec, addr_spec)
self.assertEqual(a.username, username)
self.assertEqual(a.domain, domain)
# XXX: we have no comment support yet.
#self.assertEqual(a.comment, comment)
def example_as_group(self, source, defects, decoded, display_name,
addr_spec, username, domain, comment):
source = 'foo: {};'.format(source)
gdecoded = 'foo: {};'.format(decoded) if decoded else 'foo:;'
h = self.make_header('to', source)
self.assertEqual(h, gdecoded)
self.assertDefectsEqual(h.defects, defects)
self.assertEqual(h.groups[0].addresses, h.addresses)
self.assertEqual(len(h.groups), 1)
self.assertEqual(len(h.addresses), 1)
a = h.addresses[0]
self.assertEqual(str(a), decoded)
self.assertEqual(a.display_name, display_name)
self.assertEqual(a.addr_spec, addr_spec)
self.assertEqual(a.username, username)
self.assertEqual(a.domain, domain)
def test_simple_address_list(self):
value = ('Fred <dinsdale@python.org>, foo@example.com, '
'"Harry W. Hastings" <hasty@example.com>')
h = self.make_header('to', value)
self.assertEqual(h, value)
self.assertEqual(len(h.groups), 3)
self.assertEqual(len(h.addresses), 3)
for i in range(3):
self.assertEqual(h.groups[i].addresses[0], h.addresses[i])
self.assertEqual(str(h.addresses[0]), 'Fred <dinsdale@python.org>')
self.assertEqual(str(h.addresses[1]), 'foo@example.com')
self.assertEqual(str(h.addresses[2]),
'"Harry W. Hastings" <hasty@example.com>')
self.assertEqual(h.addresses[2].display_name,
'Harry W. Hastings')
def test_complex_address_list(self):
examples = list(self.example_params.values())
source = ('dummy list:;, another: (empty);,' +
', '.join([x[0] for x in examples[:4]]) + ', ' +
r'"A \"list\"": ' +
', '.join([x[0] for x in examples[4:6]]) + ';,' +
', '.join([x[0] for x in examples[6:]])
)
# XXX: the fact that (empty) disappears here is a potential API design
# bug. We don't currently have a way to preserve comments.
expected = ('dummy list:;, another:;, ' +
', '.join([x[2] for x in examples[:4]]) + ', ' +
r'"A \"list\"": ' +
', '.join([x[2] for x in examples[4:6]]) + ';, ' +
', '.join([x[2] for x in examples[6:]])
)
h = self.make_header('to', source)
self.assertEqual(h.split(','), expected.split(','))
self.assertEqual(h, expected)
self.assertEqual(len(h.groups), 7 + len(examples) - 6)
self.assertEqual(h.groups[0].display_name, 'dummy list')
self.assertEqual(h.groups[1].display_name, 'another')
self.assertEqual(h.groups[6].display_name, 'A "list"')
self.assertEqual(len(h.addresses), len(examples))
for i in range(4):
self.assertIsNone(h.groups[i+2].display_name)
self.assertEqual(str(h.groups[i+2].addresses[0]), examples[i][2])
for i in range(7, 7 + len(examples) - 6):
self.assertIsNone(h.groups[i].display_name)
self.assertEqual(str(h.groups[i].addresses[0]), examples[i-1][2])
for i in range(len(examples)):
self.assertEqual(str(h.addresses[i]), examples[i][2])
self.assertEqual(h.addresses[i].addr_spec, examples[i][4])
def test_address_read_only(self):
h = self.make_header('sender', 'abc@xyz.com')
with self.assertRaises(AttributeError):
h.address = 'foo'
def test_addresses_read_only(self):
h = self.make_header('sender', 'abc@xyz.com')
with self.assertRaises(AttributeError):
h.addresses = 'foo'
def test_groups_read_only(self):
h = self.make_header('sender', 'abc@xyz.com')
with self.assertRaises(AttributeError):
h.groups = 'foo'
def test_addresses_types(self):
source = 'me <who@example.com>'
h = self.make_header('to', source)
self.assertIsInstance(h.addresses, tuple)
self.assertIsInstance(h.addresses[0], Address)
def test_groups_types(self):
source = 'me <who@example.com>'
h = self.make_header('to', source)
self.assertIsInstance(h.groups, tuple)
self.assertIsInstance(h.groups[0], Group)
def test_set_from_Address(self):
h = self.make_header('to', Address('me', 'foo', 'example.com'))
self.assertEqual(h, 'me <foo@example.com>')
def test_set_from_Address_list(self):
h = self.make_header('to', [Address('me', 'foo', 'example.com'),
Address('you', 'bar', 'example.com')])
self.assertEqual(h, 'me <foo@example.com>, you <bar@example.com>')
def test_set_from_Address_and_Group_list(self):
h = self.make_header('to', [Address('me', 'foo', 'example.com'),
Group('bing', [Address('fiz', 'z', 'b.com'),
Address('zif', 'f', 'c.com')]),
Address('you', 'bar', 'example.com')])
self.assertEqual(h, 'me <foo@example.com>, bing: fiz <z@b.com>, '
'zif <f@c.com>;, you <bar@example.com>')
self.assertEqual(h.fold(policy=policy.default.clone(max_line_length=40)),
'to: me <foo@example.com>,\n'
' bing: fiz <z@b.com>, zif <f@c.com>;,\n'
' you <bar@example.com>\n')
def test_set_from_Group_list(self):
h = self.make_header('to', [Group('bing', [Address('fiz', 'z', 'b.com'),
Address('zif', 'f', 'c.com')])])
self.assertEqual(h, 'bing: fiz <z@b.com>, zif <f@c.com>;')
class TestAddressAndGroup(TestEmailBase):
def _test_attr_ro(self, obj, attr):
with self.assertRaises(AttributeError):
setattr(obj, attr, 'foo')
def test_address_display_name_ro(self):
self._test_attr_ro(Address('foo', 'bar', 'baz'), 'display_name')
def test_address_username_ro(self):
self._test_attr_ro(Address('foo', 'bar', 'baz'), 'username')
def test_address_domain_ro(self):
self._test_attr_ro(Address('foo', 'bar', 'baz'), 'domain')
def test_group_display_name_ro(self):
self._test_attr_ro(Group('foo'), 'display_name')
def test_group_addresses_ro(self):
self._test_attr_ro(Group('foo'), 'addresses')
def test_address_from_username_domain(self):
a = Address('foo', 'bar', 'baz')
self.assertEqual(a.display_name, 'foo')
self.assertEqual(a.username, 'bar')
self.assertEqual(a.domain, 'baz')
self.assertEqual(a.addr_spec, 'bar@baz')
self.assertEqual(str(a), 'foo <bar@baz>')
def test_address_from_addr_spec(self):
a = Address('foo', addr_spec='bar@baz')
self.assertEqual(a.display_name, 'foo')
self.assertEqual(a.username, 'bar')
self.assertEqual(a.domain, 'baz')
self.assertEqual(a.addr_spec, 'bar@baz')
self.assertEqual(str(a), 'foo <bar@baz>')
def test_address_with_no_display_name(self):
a = Address(addr_spec='bar@baz')
self.assertEqual(a.display_name, '')
self.assertEqual(a.username, 'bar')
self.assertEqual(a.domain, 'baz')
self.assertEqual(a.addr_spec, 'bar@baz')
self.assertEqual(str(a), 'bar@baz')
def test_null_address(self):
a = Address()
self.assertEqual(a.display_name, '')
self.assertEqual(a.username, '')
self.assertEqual(a.domain, '')
self.assertEqual(a.addr_spec, '<>')
self.assertEqual(str(a), '<>')
def test_domain_only(self):
# This isn't really a valid address.
a = Address(domain='buzz')
self.assertEqual(a.display_name, '')
self.assertEqual(a.username, '')
self.assertEqual(a.domain, 'buzz')
self.assertEqual(a.addr_spec, '@buzz')
self.assertEqual(str(a), '@buzz')
def test_username_only(self):
# This isn't really a valid address.
a = Address(username='buzz')
self.assertEqual(a.display_name, '')
self.assertEqual(a.username, 'buzz')
self.assertEqual(a.domain, '')
self.assertEqual(a.addr_spec, 'buzz')
self.assertEqual(str(a), 'buzz')
def test_display_name_only(self):
a = Address('buzz')
self.assertEqual(a.display_name, 'buzz')
self.assertEqual(a.username, '')
self.assertEqual(a.domain, '')
self.assertEqual(a.addr_spec, '<>')
self.assertEqual(str(a), 'buzz <>')
def test_quoting(self):
# Ideally we'd check every special individually, but I'm not up for
# writing that many tests.
a = Address('Sara J.', 'bad name', 'example.com')
self.assertEqual(a.display_name, 'Sara J.')
self.assertEqual(a.username, 'bad name')
self.assertEqual(a.domain, 'example.com')
self.assertEqual(a.addr_spec, '"bad name"@example.com')
self.assertEqual(str(a), '"Sara J." <"bad name"@example.com>')
def test_il8n(self):
a = Address('Éric', 'wok', 'exàmple.com')
self.assertEqual(a.display_name, 'Éric')
self.assertEqual(a.username, 'wok')
self.assertEqual(a.domain, 'exàmple.com')
self.assertEqual(a.addr_spec, 'wok@exàmple.com')
self.assertEqual(str(a), 'Éric <wok@exàmple.com>')
# XXX: there is an API design issue that needs to be solved here.
#def test_non_ascii_username_raises(self):
# with self.assertRaises(ValueError):
# Address('foo', 'wők', 'example.com')
def test_non_ascii_username_in_addr_spec_raises(self):
with self.assertRaises(ValueError):
Address('foo', addr_spec='wők@example.com')
def test_address_addr_spec_and_username_raises(self):
with self.assertRaises(TypeError):
Address('foo', username='bing', addr_spec='bar@baz')
def test_address_addr_spec_and_domain_raises(self):
with self.assertRaises(TypeError):
Address('foo', domain='bing', addr_spec='bar@baz')
def test_address_addr_spec_and_username_and_domain_raises(self):
with self.assertRaises(TypeError):
Address('foo', username='bong', domain='bing', addr_spec='bar@baz')
def test_space_in_addr_spec_username_raises(self):
with self.assertRaises(ValueError):
Address('foo', addr_spec="bad name@example.com")
def test_bad_addr_sepc_raises(self):
with self.assertRaises(ValueError):
Address('foo', addr_spec="name@ex[]ample.com")
def test_empty_group(self):
g = Group('foo')
self.assertEqual(g.display_name, 'foo')
self.assertEqual(g.addresses, tuple())
self.assertEqual(str(g), 'foo:;')
def test_empty_group_list(self):
g = Group('foo', addresses=[])
self.assertEqual(g.display_name, 'foo')
self.assertEqual(g.addresses, tuple())
self.assertEqual(str(g), 'foo:;')
def test_null_group(self):
g = Group()
self.assertIsNone(g.display_name)
self.assertEqual(g.addresses, tuple())
self.assertEqual(str(g), 'None:;')
def test_group_with_addresses(self):
addrs = [Address('b', 'b', 'c'), Address('a', 'b','c')]
g = Group('foo', addrs)
self.assertEqual(g.display_name, 'foo')
self.assertEqual(g.addresses, tuple(addrs))
self.assertEqual(str(g), 'foo: b <b@c>, a <b@c>;')
def test_group_with_addresses_no_display_name(self):
addrs = [Address('b', 'b', 'c'), Address('a', 'b','c')]
g = Group(addresses=addrs)
self.assertIsNone(g.display_name)
self.assertEqual(g.addresses, tuple(addrs))
self.assertEqual(str(g), 'None: b <b@c>, a <b@c>;')
def test_group_with_one_address_no_display_name(self):
addrs = [Address('b', 'b', 'c')]
g = Group(addresses=addrs)
self.assertIsNone(g.display_name)
self.assertEqual(g.addresses, tuple(addrs))
self.assertEqual(str(g), 'b <b@c>')
def test_display_name_quoting(self):
g = Group('foo.bar')
self.assertEqual(g.display_name, 'foo.bar')
self.assertEqual(g.addresses, tuple())
self.assertEqual(str(g), '"foo.bar":;')
def test_display_name_blanks_not_quoted(self):
g = Group('foo bar')
self.assertEqual(g.display_name, 'foo bar')
self.assertEqual(g.addresses, tuple())
self.assertEqual(str(g), 'foo bar:;')
def test_set_message_header_from_address(self):
a = Address('foo', 'bar', 'example.com')
m = Message(policy=policy.default)
m['To'] = a
self.assertEqual(m['to'], 'foo <bar@example.com>')
self.assertEqual(m['to'].addresses, (a,))
def test_set_message_header_from_group(self):
g = Group('foo bar')
m = Message(policy=policy.default)
m['To'] = g
self.assertEqual(m['to'], 'foo bar:;')
self.assertEqual(m['to'].addresses, g.addresses)
class TestFolding(TestHeaderBase):
def test_short_unstructured(self):
h = self.make_header('subject', 'this is a test')
self.assertEqual(h.fold(policy=policy.default),
'subject: this is a test\n')
def test_long_unstructured(self):
h = self.make_header('Subject', 'This is a long header '
'line that will need to be folded into two lines '
'and will demonstrate basic folding')
self.assertEqual(h.fold(policy=policy.default),
'Subject: This is a long header line that will '
'need to be folded into two lines\n'
' and will demonstrate basic folding\n')
def test_unstructured_short_max_line_length(self):
h = self.make_header('Subject', 'this is a short header '
'that will be folded anyway')
self.assertEqual(
h.fold(policy=policy.default.clone(max_line_length=20)),
textwrap.dedent("""\
Subject: this is a
short header that
will be folded
anyway
"""))
def test_fold_unstructured_single_word(self):
h = self.make_header('Subject', 'test')
self.assertEqual(h.fold(policy=policy.default), 'Subject: test\n')
def test_fold_unstructured_short(self):
h = self.make_header('Subject', 'test test test')
self.assertEqual(h.fold(policy=policy.default),
'Subject: test test test\n')
def test_fold_unstructured_with_overlong_word(self):
h = self.make_header('Subject', 'thisisaverylonglineconsistingofa'
'singlewordthatwontfit')
self.assertEqual(
h.fold(policy=policy.default.clone(max_line_length=20)),
'Subject: thisisaverylonglineconsistingofasinglewordthatwontfit\n')
def test_fold_unstructured_with_two_overlong_words(self):
h = self.make_header('Subject', 'thisisaverylonglineconsistingofa'
'singlewordthatwontfit plusanotherverylongwordthatwontfit')
self.assertEqual(
h.fold(policy=policy.default.clone(max_line_length=20)),
'Subject: thisisaverylonglineconsistingofasinglewordthatwontfit\n'
' plusanotherverylongwordthatwontfit\n')
def test_fold_unstructured_with_slightly_long_word(self):
h = self.make_header('Subject', 'thislongwordislessthanmaxlinelen')
self.assertEqual(
h.fold(policy=policy.default.clone(max_line_length=35)),
'Subject:\n thislongwordislessthanmaxlinelen\n')
def test_fold_unstructured_with_commas(self):
# The old wrapper would fold this at the commas.
h = self.make_header('Subject', "This header is intended to "
"demonstrate, in a fairly susinct way, that we now do "
"not give a , special treatment in unstructured headers.")
self.assertEqual(
h.fold(policy=policy.default.clone(max_line_length=60)),
textwrap.dedent("""\
Subject: This header is intended to demonstrate, in a fairly
susinct way, that we now do not give a , special treatment
in unstructured headers.
"""))
def test_fold_address_list(self):
h = self.make_header('To', '"Theodore H. Perfect" <yes@man.com>, '
'"My address is very long because my name is long" <foo@bar.com>, '
'"Only A. Friend" <no@yes.com>')
self.assertEqual(h.fold(policy=policy.default), textwrap.dedent("""\
To: "Theodore H. Perfect" <yes@man.com>,
"My address is very long because my name is long" <foo@bar.com>,
"Only A. Friend" <no@yes.com>
"""))
def test_fold_date_header(self):
h = self.make_header('Date', 'Sat, 2 Feb 2002 17:00:06 -0800')
self.assertEqual(h.fold(policy=policy.default),
'Date: Sat, 02 Feb 2002 17:00:06 -0800\n')
if __name__ == '__main__':
unittest.main()