diff --git a/tests/events/test_utils.py b/tests/events/test_utils.py
index e40eac2eb0..c9a610db9a 100644
--- a/tests/events/test_utils.py
+++ b/tests/events/test_utils.py
@@ -16,6 +16,7 @@ import unittest as stdlib_unittest
from typing import Any, List, Mapping, Optional
import attr
+from parameterized import parameterized
from synapse.api.constants import EventContentFields
from synapse.api.room_versions import RoomVersions
@@ -23,6 +24,7 @@ from synapse.events import EventBase, make_event_from_dict
from synapse.events.utils import (
PowerLevelsContent,
SerializeEventConfig,
+ _split_field,
copy_and_fixup_power_levels_contents,
maybe_upsert_event_field,
prune_event,
@@ -794,3 +796,40 @@ class CopyPowerLevelsContentTestCase(stdlib_unittest.TestCase):
def test_invalid_nesting_raises_type_error(self) -> None:
with self.assertRaises(TypeError):
copy_and_fixup_power_levels_contents({"a": {"b": {"c": 1}}}) # type: ignore[dict-item]
+
+
+class SplitFieldTestCase(stdlib_unittest.TestCase):
+ @parameterized.expand(
+ [
+ # A field with no dots.
+ ["m", ["m"]],
+ # Simple dotted fields.
+ ["m.foo", ["m", "foo"]],
+ ["m.foo.bar", ["m", "foo", "bar"]],
+ # Backslash is used as an escape character.
+ [r"m\.foo", ["m.foo"]],
+ [r"m\\.foo", ["m\\", "foo"]],
+ [r"m\\\.foo", [r"m\.foo"]],
+ [r"m\\\\.foo", ["m\\\\", "foo"]],
+ [r"m\foo", [r"m\foo"]],
+ [r"m\\foo", [r"m\foo"]],
+ [r"m\\\foo", [r"m\\foo"]],
+ [r"m\\\\foo", [r"m\\foo"]],
+ # Ensure that escapes at the end don't cause issues.
+ ["m.foo\\", ["m", "foo\\"]],
+ ["m.foo\\", ["m", "foo\\"]],
+ [r"m.foo\.", ["m", "foo."]],
+ [r"m.foo\\.", ["m", "foo\\", ""]],
+ [r"m.foo\\\.", ["m", r"foo\."]],
+ # Empty parts (corresponding to properties which are an empty string) are allowed.
+ [".m", ["", "m"]],
+ ["..m", ["", "", "m"]],
+ ["m.", ["m", ""]],
+ ["m..", ["m", "", ""]],
+ ["m..foo", ["m", "", "foo"]],
+ # Invalid escape sequences.
+ [r"\m", [r"\m"]],
+ ]
+ )
+ def test_split_field(self, input: str, expected: str) -> None:
+ self.assertEqual(_split_field(input), expected)
|
