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5f923cd | 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 | # Copyright 2026 Google LLC.
#
# 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.
"""Utility functions for LiteRT LM tests."""
import json
import os
from typing import Any
def read_json_config(
caller_file_path: str, test_function_name: str
) -> list[Any]:
"""Loads test data from a JSON file.
Dynamically loads test data from a JSON file matching the caller's filename.
Args:
caller_file_path: The __file__ variable from the calling test script.
test_function_name: The top-level JSON key to extract the array from.
Returns:
A list of test cases from the JSON file.
Raises:
FileNotFoundError: If the JSON file is not found.
KeyError: If the test_function_name is not found in the JSON file.
"""
base_dir = os.path.dirname(os.path.abspath(caller_file_path))
file_name = os.path.basename(caller_file_path)
json_name = file_name.replace(".py", ".json")
json_path = os.path.join(base_dir, "test_data", json_name)
try:
with open(json_path, "r", encoding="utf-8") as f:
data = json.load(f)
except OSError as e:
raise OSError(
f"CRITICAL: Failed to open test data file missing at {json_path}"
) from e
if test_function_name not in data:
raise KeyError(
f"CRITICAL: Key '{test_function_name}' not found in {json_name}. "
f"Available keys: {list(data.keys())}"
)
return data[test_function_name]
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