pyinfra/test/fixtures/server.py

159 lines
3.7 KiB
Python

import io
import socket
from collections import defaultdict
from itertools import repeat
from multiprocessing import Process
from typing import Generator
import fitz
import pytest
import requests
from PIL import Image
from funcy import retry
from waitress import serve
from pyinfra.server.dispatcher.dispatcher import Nothing
from pyinfra.server.server import (
set_up_processing_server,
)
from pyinfra.server.utils import make_streamable_and_wrap_in_packing_logic
from pyinfra.utils.func import starlift
from test.utils.image import image_to_bytes
@pytest.fixture
def host():
return "0.0.0.0"
def get_free_port(host):
sock = socket.socket()
sock.bind((host, 0))
return sock.getsockname()[1]
@pytest.fixture
def port(host):
return get_free_port(host)
@pytest.fixture
def url(host, port):
return f"http://{host}:{port}"
@pytest.fixture
def server(server_stream_function, buffer_size):
return set_up_processing_server(server_stream_function, buffer_size)
@pytest.fixture
def server_stream_function(operation_conditionally_batched, batched):
return make_streamable_and_wrap_in_packing_logic(operation_conditionally_batched, batched)
@pytest.fixture
def operation_conditionally_batched(operation, batched):
return starlift(operation) if batched else operation
@pytest.fixture
def operation(core_operation):
def op(data, metadata):
assert isinstance(metadata, dict)
result = core_operation(data)
if isinstance(result, Generator):
return zip(result, repeat(metadata))
else:
return result, metadata
if core_operation is Nothing:
return Nothing
return op
@pytest.fixture
def core_operation(item_type, one_to_many, analysis_task):
def upper(string: bytes):
return string.decode().upper().encode()
def duplicate(string: bytes):
for _ in range(2):
yield upper(string)
def rotate(im: bytes):
im = Image.open(io.BytesIO(im))
return image_to_bytes(im.rotate(90))
def classify(_: bytes):
return b""
def stream_pages(pdf: bytes):
for i, page in enumerate(fitz.open(stream=pdf)):
# yield page.get_pixmap().tobytes("png"), metadata
yield f"page_{i}".encode()
try:
d = {
False: {
"string": defaultdict(lambda: upper),
"image": {False: rotate, True: classify},
},
True: {
"string": defaultdict(lambda: duplicate),
"pdf": defaultdict(lambda: stream_pages),
},
}
return d[one_to_many][item_type][analysis_task]
except KeyError:
return Nothing
@pytest.fixture(params=["pdf", "string", "image"])
def item_type(request):
return request.param
@pytest.fixture(params=[True, False])
def one_to_many(request):
return request.param
@pytest.fixture(params=[True, False])
def analysis_task(request):
return request.param
@pytest.fixture(params=[False, True])
def batched(request):
"""Controls, whether the buffer processor function of the webserver is applied to batches or single items."""
return request.param
@pytest.fixture
def host_and_port(host, port):
return {"host": host, "port": port}
@retry(tries=5, timeout=1)
def server_ready(url):
response = requests.get(f"{url}/ready")
response.raise_for_status()
return response.status_code == 200
@pytest.fixture(autouse=False, scope="function")
def server_process(server, host_and_port, url):
def get_server_process():
return Process(target=serve, kwargs={"app": server, **host_and_port})
server = get_server_process()
server.start()
if server_ready(url):
yield
server.kill()
server.join()
server.close()