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from __future__ import annotations
import json
import os
from pathlib import Path
from typing import Any
from tools.stats.import_test_stats import (
ADDITIONAL_CI_FILES_FOLDER,
TD_HEURISTIC_PREVIOUSLY_FAILED,
TD_HEURISTIC_PREVIOUSLY_FAILED_ADDITIONAL,
)
from tools.testing.target_determination.heuristics.interface import (
HeuristicInterface,
TestPrioritizations,
)
from tools.testing.target_determination.heuristics.utils import (
python_test_file_to_test_name,
)
from tools.testing.test_run import TestRun
REPO_ROOT = Path(__file__).resolve().parent.parent.parent.parent.parent
class PreviouslyFailedInPR(HeuristicInterface):
def __init__(self, **kwargs: dict[str, Any]) -> None:
super().__init__(**kwargs)
def get_prediction_confidence(self, tests: list[str]) -> TestPrioritizations:
critical_tests = get_previous_failures() | read_additional_test_failures_file()
return TestPrioritizations(
tests, {TestRun(test): 1 for test in critical_tests if test in tests}
)
def get_previous_failures() -> set[str]:
path = REPO_ROOT / ADDITIONAL_CI_FILES_FOLDER / TD_HEURISTIC_PREVIOUSLY_FAILED
if not os.path.exists(path):
print(f"could not find path {path}")
return set()
with open(path) as f:
return python_test_file_to_test_name(
_parse_prev_failing_test_files(json.load(f))
)
def _parse_prev_failing_test_files(last_failed_tests: dict[str, bool]) -> set[str]:
prioritized_tests = set()
# The keys are formatted as "test_file.py::test_class::test_method[params]"
# We just need the test_file part
for test in last_failed_tests:
parts = test.split("::")
if len(parts) > 1:
test_file = parts[0]
prioritized_tests.add(test_file)
return prioritized_tests
def gen_additional_test_failures_file(tests: list[str]) -> None:
# Segfaults usually result in no xml and some tests don't run through pytest
# (ex doctests). In these cases, there will be no entry in the pytest
# cache, so we should generate a separate file for them and upload it to s3
# along with the pytest cache
pytest_cache_dir = REPO_ROOT / ".pytest_cache"
if not os.path.exists(pytest_cache_dir):
os.makedirs(pytest_cache_dir)
with open(pytest_cache_dir / TD_HEURISTIC_PREVIOUSLY_FAILED_ADDITIONAL, "w") as f:
json.dump(tests, f, indent=2)
def read_additional_test_failures_file() -> set[str]:
path = (
REPO_ROOT
/ ADDITIONAL_CI_FILES_FOLDER
/ TD_HEURISTIC_PREVIOUSLY_FAILED_ADDITIONAL
)
if not os.path.exists(path):
print(f"could not find path {path}")
return set()
with open(path) as f:
s = set(json.load(f))
print(f"additional failures: {s}")
return s
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