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from dataclasses import dataclass, field
from apischema import serialize, serialized
from apischema.json_schema import serialization_schema
from apischema.metadata import flatten
@dataclass
class Base:
@serialized
def serialized(self) -> int:
return 0
base_schema = {
"$schema": "http://json-schema.org/draft/2020-12/schema#",
"type": "object",
"properties": {"serialized": {"type": "integer"}},
"required": ["serialized"],
"additionalProperties": False,
}
@dataclass
class Inherited(Base):
pass
@dataclass
class InheritedOverriden(Base):
def serialized(self) -> int:
return 1
def test_inherited_serialized():
assert (
serialization_schema(Base)
== serialization_schema(Inherited)
== serialization_schema(InheritedOverriden)
== base_schema
)
assert (
serialize(Base, Base())
== serialize(Inherited, Inherited())
== {"serialized": 0}
)
assert serialize(InheritedOverriden, InheritedOverriden()) == {"serialized": 1}
class WithFlattened(Base):
base: Base = field(metadata=flatten)
def test_flattened_serialized():
assert (
serialization_schema(Base) == serialization_schema(WithFlattened) == base_schema
)
assert (
serialize(Base, Base())
== serialize(WithFlattened, WithFlattened())
== {"serialized": 0}
)
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