def test_is_hostname():
"""
API: is_hostname() function
"""
# Valid Hostnames
assert utils.is_hostname('yahoo.ca') is True
assert utils.is_hostname('yahoo.ca.') is True
assert utils.is_hostname('valid-dashes-in-host.ca') is True
assert utils.is_hostname('valid-underscores_in_host.ca') is True
# Invalid Hostnames
assert utils.is_hostname('invalid-characters_#^.ca') is False
assert utils.is_hostname(' spaces ') is False
assert utils.is_hostname(' ') is False
assert utils.is_hostname('') is False
def test_is_hostname():
"""
API: is_hostname() function
"""
# Valid Hostnames
assert utils.is_hostname('yahoo.ca') == 'yahoo.ca'
assert utils.is_hostname('yahoo.ca.') == 'yahoo.ca'
assert utils.is_hostname('valid-dashes-in-host.ca') == \
'valid-dashes-in-host.ca'
assert utils.is_hostname('valid-underscores_in_host.ca') == \
'valid-underscores_in_host.ca'
# Invalid Hostnames
assert utils.is_hostname('-hostname.that.starts.with.a.dash') is False
assert utils.is_hostname('invalid-characters_#^.ca') is False
assert utils.is_hostname(' spaces ') is False
assert utils.is_hostname(' ') is False
assert utils.is_hostname('') is False
# Valid IPv4 Addresses
assert utils.is_hostname('127.0.0.1') == '127.0.0.1'
assert utils.is_hostname('0.0.0.0') == '0.0.0.0'
assert utils.is_hostname('255.255.255.255') == '255.255.255.255'
# But not if we're not checking for this:
assert utils.is_hostname('127.0.0.1', ipv4=False) is False
assert utils.is_hostname('0.0.0.0', ipv4=False) is False
assert utils.is_hostname('255.255.255.255', ipv4=False) is False
# Invalid IPv4 Addresses
assert utils.is_hostname('1.2.3') is False
assert utils.is_hostname('256.256.256.256') is False
assert utils.is_hostname('999.0.0.0') is False
assert utils.is_hostname('1.2.3.4.5') is False
assert utils.is_hostname(' 127.0.0.1 ') is False
assert utils.is_hostname(' ') is False
assert utils.is_hostname('') is False
# Valid IPv6 Addresses (square brakets supported for URL construction)
assert utils.is_hostname('[2001:0db8:85a3:0000:0000:8a2e:0370:7334]') == \
'[2001:0db8:85a3:0000:0000:8a2e:0370:7334]'
assert utils.is_hostname('2001:0db8:85a3:0000:0000:8a2e:0370:7334') == \
'[2001:0db8:85a3:0000:0000:8a2e:0370:7334]'
assert utils.is_hostname('[2001:db8:002a:3256:adfe:05c0:0003:0006]') == \
'[2001:db8:002a:3256:adfe:05c0:0003:0006]'
# localhost
assert utils.is_hostname('::1') == '[::1]'
assert utils.is_hostname('0:0:0:0:0:0:0:1') == '[0:0:0:0:0:0:0:1]'
# But not if we're not checking for this:
assert utils.is_hostname('[2001:0db8:85a3:0000:0000:8a2e:0370:7334]',
ipv6=False) is False
assert utils.is_hostname('2001:0db8:85a3:0000:0000:8a2e:0370:7334',
ipv6=False) is False