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from dataclasses import dataclass
from datetime import date, datetime, time
from typing import Dict, List
from uuid import UUID, uuid4
import orjson
import pytest
from mashumaro import DataClassDictMixin
from mashumaro.config import ADD_DIALECT_SUPPORT, BaseConfig
from mashumaro.dialect import Dialect
from mashumaro.mixins.orjson import DataClassORJSONMixin
serialization_strategy = {
datetime: {
"serialize": lambda dt: dt.strftime("%Y/%m/%d/%H/%M/%S"),
"deserialize": lambda s: datetime.strptime(s, "%Y/%m/%d/%H/%M/%S"),
},
date: {
"serialize": date.toordinal,
"deserialize": date.fromordinal,
},
time: {
"serialize": lambda t: t.strftime("%H/%M/%S"),
"deserialize": lambda s: datetime.strptime(s, "%H/%M/%S").time(),
},
UUID: {
"serialize": lambda x: f"uuid:{x}",
"deserialize": lambda s: UUID(s[5:]),
},
}
class MyDialect(Dialect):
serialization_strategy = serialization_strategy
@dataclass
class InnerDataClass(DataClassDictMixin):
x: str
@dataclass
class DataClass(DataClassORJSONMixin):
x: str
inner: InnerDataClass
def test_data_class_orjson_mixin():
assert DataClassORJSONMixin.from_json("") is None
assert DataClassORJSONMixin().to_jsonb() is None
def test_to_orjson():
@dataclass
class DataClass(DataClassORJSONMixin):
x: List[int]
dumped = orjson.dumps({"x": [1, 2, 3]})
assert DataClass([1, 2, 3]).to_jsonb() == dumped
assert DataClass([1, 2, 3]).to_json() == dumped.decode()
def test_from_orjson():
@dataclass
class DataClass(DataClassORJSONMixin):
x: List[int]
dumped = orjson.dumps({"x": [1, 2, 3]})
assert DataClass.from_json(dumped) == DataClass([1, 2, 3])
def test_orjson_with_serialization_strategy():
@dataclass
class DataClass(DataClassORJSONMixin):
datetime: List[datetime]
date: List[date]
time: List[time]
uuid: List[UUID]
class Config(BaseConfig):
serialization_strategy = serialization_strategy
_datetime = datetime(2022, 10, 12, 12, 54, 30)
_date = date(2022, 10, 12)
_time = time(12, 54, 30)
_uuid = uuid4()
_datetime_dumped = _datetime.strftime("%Y/%m/%d/%H/%M/%S")
_date_dumped = _date.toordinal()
_time_dumped = _time.strftime("%H/%M/%S")
_uuid_dumped = f"uuid:{_uuid}"
instance = DataClass([_datetime], [_date], [_time], [_uuid])
dict_dumped = {
"datetime": [_datetime_dumped],
"date": [_date_dumped],
"time": [_time_dumped],
"uuid": [_uuid_dumped],
}
orjson_dumped = orjson.dumps(
{
"datetime": [_datetime_dumped],
"date": [_date_dumped],
"time": [_time_dumped],
"uuid": [_uuid_dumped],
}
)
assert DataClass.from_dict(dict_dumped) == instance
assert DataClass.from_json(orjson_dumped) == instance
assert instance.to_dict() == dict_dumped
assert instance.to_jsonb() == orjson_dumped
def test_orjson_with_dialect():
@dataclass
class DataClass(DataClassORJSONMixin):
datetime: List[datetime]
date: List[date]
time: List[time]
uuid: List[UUID]
class Config(BaseConfig):
dialect = MyDialect
_datetime = datetime(2022, 10, 12, 12, 54, 30)
_date = date(2022, 10, 12)
_time = time(12, 54, 30)
_uuid = uuid4()
_datetime_dumped = _datetime.strftime("%Y/%m/%d/%H/%M/%S")
_date_dumped = _date.toordinal()
_time_dumped = _time.strftime("%H/%M/%S")
_uuid_dumped = f"uuid:{_uuid}"
instance = DataClass([_datetime], [_date], [_time], [_uuid])
dict_dumped = {
"datetime": [_datetime_dumped],
"date": [_date_dumped],
"time": [_time_dumped],
"uuid": [_uuid_dumped],
}
orjson_dumped = orjson.dumps(
{
"datetime": [_datetime_dumped],
"date": [_date_dumped],
"time": [_time_dumped],
"uuid": [_uuid_dumped],
}
)
assert DataClass.from_dict(dict_dumped) == instance
assert DataClass.from_json(orjson_dumped) == instance
assert instance.to_dict() == dict_dumped
assert instance.to_jsonb() == orjson_dumped
def test_orjson_with_dialect_support():
@dataclass
class DataClass(DataClassORJSONMixin):
datetime: List[datetime]
date: List[date]
time: List[time]
uuid: List[UUID]
class Config(BaseConfig):
code_generation_options = [ADD_DIALECT_SUPPORT]
_datetime = datetime(2022, 10, 12, 12, 54, 30)
_date = date(2022, 10, 12)
_time = time(12, 54, 30)
_uuid = uuid4()
_datetime_dumped = _datetime.strftime("%Y/%m/%d/%H/%M/%S")
_date_dumped = _date.toordinal()
_time_dumped = _time.strftime("%H/%M/%S")
_uuid_dumped = f"uuid:{_uuid}"
instance = DataClass([_datetime], [_date], [_time], [_uuid])
dict_dumped = {
"datetime": [_datetime.isoformat()],
"date": [_date.isoformat()],
"time": [_time.isoformat()],
"uuid": [str(_uuid)],
}
dict_dumped_dialect = {
"datetime": [_datetime_dumped],
"date": [_date_dumped],
"time": [_time_dumped],
"uuid": [_uuid_dumped],
}
orjson_dumped = orjson.dumps(
{
"datetime": [_datetime],
"date": [_date],
"time": [_time],
"uuid": [_uuid],
}
)
orjson_dumped_dialect = orjson.dumps(
{
"datetime": [_datetime_dumped],
"date": [_date_dumped],
"time": [_time_dumped],
"uuid": [_uuid_dumped],
}
)
assert DataClass.from_dict(dict_dumped) == instance
assert (
DataClass.from_dict(dict_dumped_dialect, dialect=MyDialect) == instance
)
assert DataClass.from_json(orjson_dumped) == instance
assert (
DataClass.from_json(orjson_dumped_dialect, dialect=MyDialect)
== instance
)
assert instance.to_dict() == dict_dumped
assert instance.to_dict(dialect=MyDialect) == dict_dumped_dialect
assert instance.to_jsonb() == orjson_dumped
assert instance.to_jsonb(dialect=MyDialect) == orjson_dumped_dialect
def test_orjson_with_custom_encoder_and_decoder():
def decoder(data) -> Dict[str, bytes]:
def to_lower(d):
result = {}
for k, v in d.items():
if isinstance(v, dict):
result[k] = to_lower(v)
else:
result[k] = v.lower()
return result
return to_lower(orjson.loads(data))
def encoder(data: Dict[str, bytes], **_) -> bytes:
def to_upper(d):
result = {}
for k, v in d.items():
if isinstance(v, dict):
result[k] = to_upper(v)
else:
result[k] = v.upper()
return result
return orjson.dumps(to_upper(data))
instance = DataClass("abc", InnerDataClass("def"))
dumped = orjson.dumps({"x": "ABC", "inner": {"x": "DEF"}})
assert instance.to_jsonb(encoder=encoder) == dumped
assert DataClass.from_json(dumped, decoder=decoder) == instance
def test_to_orjson_with_non_str_keys():
@dataclass
class DataClass(DataClassORJSONMixin):
x: Dict[int, int]
instance = DataClass({1: 2})
dumped = b'{"x":{"1":2}}'
with pytest.raises(TypeError):
instance.to_jsonb()
assert instance.to_jsonb(orjson_options=orjson.OPT_NON_STR_KEYS) == dumped
assert DataClass.from_json(dumped) == instance
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