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from __future__ import annotations
import pytest
from dataclasses import dataclass
from ipaddress import IPv4Address
from dataclass_wizard import JSONWizard, LoadMeta
from dataclass_wizard.errors import ParseError
from dataclass_wizard import DumpMixin, LoadMixin
def test_register_type_ipv4address_roundtrip():
@dataclass
class Foo(JSONWizard):
s: str | None = None
c: IPv4Address | None = None
Foo.register_type(IPv4Address)
data = {"c": "127.0.0.1", "s": "foobar"}
foo = Foo.from_dict(data)
assert foo.c == IPv4Address("127.0.0.1")
assert foo.to_dict() == data
assert Foo.from_dict(foo.to_dict()).to_dict() == data
def test_ipv4address_without_hook_raises_parse_error():
@dataclass
class Foo(JSONWizard):
c: IPv4Address | None = None
data = {"c": "127.0.0.1"}
with pytest.raises(ParseError) as e:
Foo.from_dict(data)
assert e.value.phase == 'load'
msg = str(e.value)
# assert "field `c`" in msg
assert "not currently supported" in msg
assert "IPv4Address" in msg
assert "load" in msg.lower()
def test_ipv4address_hooks_with_load_and_dump_mixins_roundtrip():
@dataclass
class Foo(JSONWizard, DumpMixin, LoadMixin):
c: IPv4Address | None = None
@classmethod
def load_to_ipv4_address(cls, o, *_):
return IPv4Address(o)
@classmethod
def dump_from_ipv4_address(cls, o, *_):
return str(o)
Foo.register_load_hook(IPv4Address, Foo.load_to_ipv4_address)
Foo.register_dump_hook(IPv4Address, Foo.dump_from_ipv4_address)
data = {"c": "127.0.0.1"}
foo = Foo.from_dict(data)
assert foo.c == IPv4Address("127.0.0.1")
assert foo.to_dict() == data
assert Foo.from_dict(foo.to_dict()).to_dict() == data
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