haystack/test/utils/test_callable_serialization.py

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import requests
from haystack.components.generators.utils import print_streaming_chunk
from haystack.utils.callable_serialization import serialize_callable, deserialize_callable
def some_random_callable_for_testing(some_ignored_arg: str):
pass
def test_callable_serialization():
result = serialize_callable(some_random_callable_for_testing)
assert result == "test_callable_serialization.some_random_callable_for_testing"
def test_callable_serialization_non_local():
# check our callable serialization
result = serialize_callable(print_streaming_chunk)
assert result == "haystack.components.generators.utils.print_streaming_chunk"
# check serialization of another library's callable
result = serialize_callable(requests.api.get)
assert result == "requests.api.get"
def test_callable_deserialization():
result = serialize_callable(some_random_callable_for_testing)
fn = deserialize_callable(result)
assert fn is some_random_callable_for_testing
def test_callable_deserialization_non_local():
result = serialize_callable(requests.api.get)
fn = deserialize_callable(result)
assert fn is requests.api.get