def test_invalid_characters():
"""Ensure that invalid chars can't be included (not comprehensive)."""
invalid_chars = ' ~!@#$%^&*()+={}[]|\\:;"<>,.?/'
for char in invalid_chars:
username = f'abc{char}xyz'
assert not is_valid_username(username)
def test_consecutive_spacer_chars_invalid():
"""Ensure that a username with consecutive "spacer chars" is invalid."""
spacer_chars = '_-'
for char1, char2 in product(spacer_chars, spacer_chars):
username = f'abc{char1}{char2}xyz'
assert not is_valid_username(username)
def _tokenize_username_match(match: re.Match) -> list[dict]:
"""Convert a potential username reference into HTML tokens."""
# if it's a valid username, convert to <a>
if is_valid_username(match[1]):
return [
{
"type": "StartTag",
"name": "a",
"data": {
(None, "class"): "link-user",
(None, "href"): f"/user/{match[1]}",
},
},
{
"type": "Characters",
"data": match[0]
},
{
"type": "EndTag",
"name": "a"
},
]
# the username wasn't valid, so just keep it as the original text
return [{"type": "Characters", "data": match[0]}]
def _tokenize_username_match(match: Match) -> List[dict]:
"""Convert a potential username reference into HTML tokens."""
# if it's a valid username, convert to <a>
if is_valid_username(match[1]):
return [
{
'type': 'StartTag',
'name': 'a',
'data': {
(None, 'href'): f'/user/{match[1]}'
},
},
{
'type': 'Characters',
'data': match[0]
},
{
'type': 'EndTag',
'name': 'a'
},
]
# the username wasn't valid, so just keep it as the original text
return [{'type': 'Characters', 'data': match[0]}]
def test_too_short_invalid():
"""Ensure too-short username is invalid."""
length = USERNAME_MIN_LENGTH - 1
username = '******' * length
assert not is_valid_username(username)
def test_unicode_characters():
"""Ensure that unicode chars can't be included (not comprehensive)."""
for username in ('pokémon', 'ポケモン', 'møøse'):
assert not is_valid_username(username)
def test_typical_username_valid():
"""Ensure a "normal-looking" username is considered valid."""
assert is_valid_username('someTypical_user-85')
def test_valid_length_range():
"""Ensure the entire range of valid lengths work."""
for length in range(USERNAME_MIN_LENGTH, USERNAME_MAX_LENGTH + 1):
username = '******' * length
assert is_valid_username(username)
def test_too_long_invalid():
"""Ensure too-long username is invalid."""
length = USERNAME_MAX_LENGTH + 1
username = '******' * length
assert not is_valid_username(username)
