File size: 2,323 Bytes
ce676f7 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | # SPDX-FileCopyrightText: 2022-present deepset GmbH <info@deepset.ai>
#
# SPDX-License-Identifier: Apache-2.0
from haystack.core.errors import DeserializationError, SerializationError
import pytest
from haystack.utils.base_serialization import serialize_class_instance, deserialize_class_instance
class CustomClass:
def to_dict(self):
return {"key": "value", "more": False}
@classmethod
def from_dict(cls, data):
assert data == {"key": "value", "more": False}
return cls()
class CustomClassNoToDict:
@classmethod
def from_dict(cls, data):
assert data == {"key": "value", "more": False}
return cls()
class CustomClassNoFromDict:
def to_dict(self):
return {"key": "value", "more": False}
def test_serialize_class_instance():
result = serialize_class_instance(CustomClass())
assert result == {"data": {"key": "value", "more": False}, "type": "test_base_serialization.CustomClass"}
def test_serialize_class_instance_missing_method():
with pytest.raises(SerializationError, match="does not have a 'to_dict' method"):
serialize_class_instance(CustomClassNoToDict())
def test_deserialize_class_instance():
data = {"data": {"key": "value", "more": False}, "type": "test_base_serialization.CustomClass"}
result = deserialize_class_instance(data)
assert isinstance(result, CustomClass)
def test_deserialize_class_instance_invalid_data():
data = {"data": {"key": "value", "more": False}, "type": "test_base_serialization.CustomClass"}
with pytest.raises(DeserializationError, match="Missing 'type'"):
deserialize_class_instance({})
with pytest.raises(DeserializationError, match="Missing 'data'"):
deserialize_class_instance({"type": "test_base_serialization.CustomClass"})
with pytest.raises(
DeserializationError, match="Class 'test_base_serialization.CustomClass1' not correctly imported"
):
deserialize_class_instance({"type": "test_base_serialization.CustomClass1", "data": {}})
with pytest.raises(
DeserializationError,
match="Class 'test_base_serialization.CustomClassNoFromDict' does not have a 'from_dict' method",
):
deserialize_class_instance({"type": "test_base_serialization.CustomClassNoFromDict", "data": {}})
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