dragonpilot - 基於 openpilot 的開源駕駛輔助系統
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#!/usr/bin/env python3
import time
import threading
from collections import namedtuple
from pathlib import Path
from collections.abc import Sequence
import openpilot.system.loggerd.deleter as deleter
from openpilot.common.timeout import Timeout, TimeoutException
from openpilot.system.loggerd.tests.loggerd_tests_common import UploaderTestCase
Stats = namedtuple("Stats", ['f_bavail', 'f_blocks', 'f_frsize'])
class TestDeleter(UploaderTestCase):
def fake_statvfs(self, d):
return self.fake_stats
def setup_method(self):
self.f_type = "fcamera.hevc"
super().setup_method()
self.fake_stats = Stats(f_bavail=0, f_blocks=10, f_frsize=4096)
deleter.os.statvfs = self.fake_statvfs
def start_thread(self):
self.end_event = threading.Event()
self.del_thread = threading.Thread(target=deleter.deleter_thread, args=[self.end_event])
self.del_thread.daemon = True
self.del_thread.start()
def join_thread(self):
self.end_event.set()
self.del_thread.join()
def test_delete(self):
f_path = self.make_file_with_data(self.seg_dir, self.f_type, 1)
self.start_thread()
try:
with Timeout(2, "Timeout waiting for file to be deleted"):
while f_path.exists():
time.sleep(0.01)
finally:
self.join_thread()
def assertDeleteOrder(self, f_paths: Sequence[Path], timeout: int = 5) -> None:
deleted_order = []
self.start_thread()
try:
with Timeout(timeout, "Timeout waiting for files to be deleted"):
while True:
for f in f_paths:
if not f.exists() and f not in deleted_order:
deleted_order.append(f)
if len(deleted_order) == len(f_paths):
break
time.sleep(0.01)
except TimeoutException:
print("Not deleted:", [f for f in f_paths if f not in deleted_order])
raise
finally:
self.join_thread()
assert deleted_order == f_paths, "Files not deleted in expected order"
def test_delete_order(self):
self.assertDeleteOrder([
self.make_file_with_data(self.seg_format.format(0), self.f_type),
self.make_file_with_data(self.seg_format.format(1), self.f_type),
self.make_file_with_data(self.seg_format2.format(0), self.f_type),
])
def test_delete_many_preserved(self):
self.assertDeleteOrder([
self.make_file_with_data(self.seg_format.format(0), self.f_type),
self.make_file_with_data(self.seg_format.format(1), self.f_type, preserve_xattr=deleter.PRESERVE_ATTR_VALUE),
self.make_file_with_data(self.seg_format.format(2), self.f_type),
] + [
self.make_file_with_data(self.seg_format2.format(i), self.f_type, preserve_xattr=deleter.PRESERVE_ATTR_VALUE)
for i in range(5)
])
def test_delete_last(self):
self.assertDeleteOrder([
self.make_file_with_data(self.seg_format.format(1), self.f_type),
self.make_file_with_data(self.seg_format2.format(0), self.f_type),
self.make_file_with_data(self.seg_format.format(0), self.f_type, preserve_xattr=deleter.PRESERVE_ATTR_VALUE),
self.make_file_with_data("boot", self.seg_format[:-4]),
self.make_file_with_data("crash", self.seg_format2[:-4]),
])
def test_no_delete_when_available_space(self):
f_path = self.make_file_with_data(self.seg_dir, self.f_type)
block_size = 4096
available = (10 * 1024 * 1024 * 1024) / block_size # 10GB free
self.fake_stats = Stats(f_bavail=available, f_blocks=10, f_frsize=block_size)
self.start_thread()
start_time = time.monotonic()
while f_path.exists() and time.monotonic() - start_time < 2:
time.sleep(0.01)
self.join_thread()
assert f_path.exists(), "File deleted with available space"
def test_no_delete_with_lock_file(self):
f_path = self.make_file_with_data(self.seg_dir, self.f_type, lock=True)
self.start_thread()
start_time = time.monotonic()
while f_path.exists() and time.monotonic() - start_time < 2:
time.sleep(0.01)
self.join_thread()
assert f_path.exists(), "File deleted when locked"