pyinfra/test/fixtures/server.py

119 lines
2.9 KiB
Python

import io
import socket
from multiprocessing import Process
import fitz
import pytest
import requests
from PIL import Image
from funcy import retry
from waitress import serve
from pyinfra.server.server import set_up_processing_server, 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(processor_fn):
return set_up_processing_server(processor_fn)
@pytest.fixture
def processor_fn(operation_conditionally_batched, buffer_size, batched):
return make_streamable_and_wrap_in_packing_logic(operation_conditionally_batched, batched, buffer_size)
@pytest.fixture
def operation_conditionally_batched(operation, batched):
return starlift(operation) if batched else operation
@pytest.fixture
def operation(item_type, batched, one_to_many):
def upper(string: bytes, metadata):
return string.decode().upper().encode(), metadata
def duplicate(string: bytes, metadata):
for _ in range(2):
yield upper(string, metadata)
def rotate(im: bytes, metadata):
im = Image.open(io.BytesIO(im))
return image_to_bytes(im.rotate(90)), metadata
def stream_pages(pdf: bytes, metadata):
for i, page in enumerate(fitz.open(stream=pdf)):
# yield page.get_pixmap().tobytes("png"), metadata
yield f"page_{i}".encode(), metadata
try:
return {"string": duplicate if one_to_many else upper, "image": rotate, "pdf": stream_pages}[item_type]
except KeyError:
raise ValueError(f"No operation specified for item type {item_type}")
@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=[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()