def test_email_address_mutability():
"""EmailAddress can be mutated to change casing or delete the address only"""
ea = EmailAddress('*****@*****.**')
assert ea.email == '*****@*****.**'
assert ea.domain == 'example.com'
assert ea.blake2b160 == hash_map['*****@*****.**']
# Case changes allowed, hash remains the same
ea.email = '*****@*****.**'
assert ea.email == '*****@*****.**'
assert ea.domain == 'example.com'
assert ea.blake2b160 == hash_map['*****@*****.**']
# Setting it to existing value is allowed
ea.email = '*****@*****.**'
assert ea.email == '*****@*****.**'
assert ea.domain == 'example.com'
assert ea.blake2b160 == hash_map['*****@*****.**']
# Nulling allowed, hash remains intact
ea.email = None
assert ea.email is None
assert ea.domain is None
assert ea.blake2b160 == hash_map['*****@*****.**']
# Restoring allowed (case insensitive)
ea.email = '*****@*****.**'
assert ea.email == '*****@*****.**'
assert ea.domain == 'example.com'
assert ea.blake2b160 == hash_map['*****@*****.**']
# But changing to another email address is not allowed
with pytest.raises(ValueError):
ea.email = '*****@*****.**'
# Change is also not allowed by blanking and then setting to another
ea.email = None
with pytest.raises(ValueError):
ea.email = '*****@*****.**'
# Changing the domain is also not allowed
with pytest.raises(AttributeError):
ea.domain = 'gmail.com'
# Setting to an invalid value is not allowed
with pytest.raises(ValueError):
ea.email = ''
def test_email_address_md5():
"""EmailAddress has an MD5 method for legacy applications"""
ea = EmailAddress('*****@*****.**')
assert ea.md5() == '23463b99b62a72f26ed677cc556c44e8'
ea.email = None
assert ea.md5() is None