Files
flatbuffers/tests/flatc/flatc_schema_tests.py
Justin Davis ea0a73d168 disallow circular struct references (#8851)
* detect and fail for circular struct dependencies

* pr comments

* pr comment
2026-02-04 15:15:05 +00:00

82 lines
2.4 KiB
Python

# Copyright 2022 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import json
from flatc_test import *
class SchemaTests:
def EnumValAttributes(self):
# Generate .bfbs schema first
flatc(
["--schema", "--binary", "--bfbs-builtins", "enum_val_attributes.fbs"]
)
assert_file_exists("enum_val_attributes.bfbs")
# Then turn it into JSON
flatc([
"--json",
"--strict-json",
str(reflection_fbs_path()),
"--",
"enum_val_attributes.bfbs",
])
# The attributes should be present in JSON
schema_json = json.loads(get_file_contents("enum_val_attributes.json"))
assert schema_json["enums"][0]["name"] == "ValAttributes"
assert schema_json["enums"][0]["values"][0]["name"] == "Val1"
assert (
schema_json["enums"][0]["values"][0]["attributes"][0]["key"]
== "display_name"
)
assert (
schema_json["enums"][0]["values"][0]["attributes"][0]["value"]
== "Value 1"
)
assert schema_json["enums"][0]["values"][1]["name"] == "Val2"
assert (
schema_json["enums"][0]["values"][1]["attributes"][0]["key"]
== "display_name"
)
assert (
schema_json["enums"][0]["values"][1]["attributes"][0]["value"]
== "Value 2"
)
assert schema_json["enums"][0]["values"][2]["name"] == "Val3"
assert (
schema_json["enums"][0]["values"][2]["attributes"][0]["key"]
== "deprecated"
)
assert (
schema_json["enums"][0]["values"][2]["attributes"][1]["key"]
== "display_name"
)
assert (
schema_json["enums"][0]["values"][2]["attributes"][1]["value"]
== "Value 3 (deprecated)"
)
def CircularStructDependency(self):
try:
flatc(["-c", "circular_struct_dependency.fbs"])
assert False, "Expected flatc to fail on circular struct dependency"
except subprocess.CalledProcessError:
pass
flatc(["-c", "circular_table.fbs"])