dragonpilot - 基於 openpilot 的開源駕駛輔助系統
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#!/usr/bin/env python3
import http.server
import os
import shutil
import socket
import pytest
from openpilot.selfdrive.test.helpers import http_server_context
from openpilot.system.hardware.hw import Paths
from openpilot.tools.lib.url_file import URLFile
class CachingTestRequestHandler(http.server.BaseHTTPRequestHandler):
FILE_EXISTS = True
def do_GET(self):
if self.FILE_EXISTS:
self.send_response(206 if "Range" in self.headers else 200, b'1234')
else:
self.send_response(404)
self.end_headers()
def do_HEAD(self):
if self.FILE_EXISTS:
self.send_response(200)
self.send_header("Content-Length", "4")
else:
self.send_response(404)
self.end_headers()
@pytest.fixture
def host():
with http_server_context(handler=CachingTestRequestHandler) as (host, port):
yield f"http://{host}:{port}"
class TestFileDownload:
def test_pipeline_defaults(self, host):
# TODO: parameterize the defaults so we don't rely on hard-coded values in xx
assert URLFile.pool_manager().pools._maxsize == 10# PoolManager num_pools param
pool_manager_defaults = {
"maxsize": 100,
"socket_options": [(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1),],
}
for k, v in pool_manager_defaults.items():
assert URLFile.pool_manager().connection_pool_kw.get(k) == v
retry_defaults = {
"total": 5,
"backoff_factor": 0.5,
"status_forcelist": [409, 429, 503, 504],
}
for k, v in retry_defaults.items():
assert getattr(URLFile.pool_manager().connection_pool_kw["retries"], k) == v
# ensure caching off by default and cache dir doesn't get created
os.environ.pop("FILEREADER_CACHE", None)
if os.path.exists(Paths.download_cache_root()):
shutil.rmtree(Paths.download_cache_root())
URLFile(f"{host}/test.txt").get_length()
URLFile(f"{host}/test.txt").read()
assert not os.path.exists(Paths.download_cache_root())
def compare_loads(self, url, start=0, length=None):
"""Compares range between cached and non cached version"""
file_cached = URLFile(url, cache=True)
file_downloaded = URLFile(url, cache=False)
file_cached.seek(start)
file_downloaded.seek(start)
assert file_cached.get_length() == file_downloaded.get_length()
assert length + start if length is not None else 0 <= file_downloaded.get_length()
response_cached = file_cached.read(ll=length)
response_downloaded = file_downloaded.read(ll=length)
assert response_cached == response_downloaded
# Now test with cache in place
file_cached = URLFile(url, cache=True)
file_cached.seek(start)
response_cached = file_cached.read(ll=length)
assert file_cached.get_length() == file_downloaded.get_length()
assert response_cached == response_downloaded
def test_small_file(self):
# Make sure we don't force cache
os.environ["FILEREADER_CACHE"] = "0"
small_file_url = "https://raw.githubusercontent.com/commaai/openpilot/master/docs/SAFETY.md"
# If you want large file to be larger than a chunk
# large_file_url = "https://commadataci.blob.core.windows.net/openpilotci/0375fdf7b1ce594d/2019-06-13--08-32-25/3/fcamera.hevc"
# Load full small file
self.compare_loads(small_file_url)
file_small = URLFile(small_file_url)
length = file_small.get_length()
self.compare_loads(small_file_url, length - 100, 100)
self.compare_loads(small_file_url, 50, 100)
# Load small file 100 bytes at a time
for i in range(length // 100):
self.compare_loads(small_file_url, 100 * i, 100)
def test_large_file(self):
large_file_url = "https://commadataci.blob.core.windows.net/openpilotci/0375fdf7b1ce594d/2019-06-13--08-32-25/3/qlog.bz2"
# Load the end 100 bytes of both files
file_large = URLFile(large_file_url)
length = file_large.get_length()
self.compare_loads(large_file_url, length - 100, 100)
self.compare_loads(large_file_url)
@pytest.mark.parametrize("cache_enabled", [True, False])
def test_recover_from_missing_file(self, host, cache_enabled):
os.environ["FILEREADER_CACHE"] = "1" if cache_enabled else "0"
file_url = f"{host}/test.png"
CachingTestRequestHandler.FILE_EXISTS = False
length = URLFile(file_url).get_length()
assert length == -1
CachingTestRequestHandler.FILE_EXISTS = True
length = URLFile(file_url).get_length()
assert length == 4