mirror of
https://github.com/element-hq/synapse.git
synced 2026-06-07 04:31:53 +00:00
Erik Johnston
e8e5a42180
Follow on from https://github.com/element-hq/synapse/pull/19701. Unfortunately serde has a bug when using `#[serde(flatten)]` with `arbitrary-precision` feature when handling integers that fit in a i128 when doing `serde_json::from_value`. See https://github.com/serde-rs/serde/issues/2230. The `depythonize` hits the same issue. To fix this we make it so we only parse events from strings and not values.
60 lines
2.1 KiB
Python
60 lines
2.1 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright (C) 2026 Element Creations Ltd.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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from canonicaljson import encode_canonical_json
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from synapse.synapse_rust.events import Unsigned
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from synapse.types import JsonDict
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from tests import unittest
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def _make_unsigned(d: JsonDict) -> Unsigned:
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return Unsigned(encode_canonical_json(d).decode("utf-8"))
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class UnsignedTestCase(unittest.TestCase):
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def test_prev_content(self) -> None:
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"""Test that the prev_content field is correctly exposed as a JsonObject."""
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unsigned = _make_unsigned({"prev_content": {"key1": "value1", "key2": 42}})
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self.assert_dict(unsigned["prev_content"], {"key1": "value1", "key2": 42})
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self.assert_dict(
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unsigned.for_event(), {"prev_content": {"key1": "value1", "key2": 42}}
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)
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def test_large_age_ts(self) -> None:
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"""Test that we can handle integers larger than 2^128, which is larger
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than the maximum rust native integer size."""
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large_int = 2**200
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unsigned = _make_unsigned({"age_ts": large_int})
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self.assertEqual(unsigned["age_ts"], large_int)
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self.assert_dict(unsigned.for_event(), {"age_ts": large_int})
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def test_large_integer_in_prev_content(self) -> None:
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"""Test that we can handle integers larger than 2^128 in the
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prev_content field, which is a JsonObject and thus can contain arbitrary
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JSON."""
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large_int = 2**200
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unsigned = _make_unsigned({"prev_content": {"some_field": large_int}})
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self.assertEqual(unsigned["prev_content"]["some_field"], large_int)
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self.assert_dict(
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unsigned.for_event(), {"prev_content": {"some_field": large_int}}
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)
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