138 lines
3.4 KiB
Python
138 lines
3.4 KiB
Python
import io
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import socket
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from multiprocessing import Process
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from typing import Generator
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import fitz
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import pytest
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import requests
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from PIL import Image
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from funcy import retry, first, compose
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from waitress import serve
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from pyinfra.server.bufferizer.lazy_bufferizer import FlatStreamBuffer
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from pyinfra.server.server import (
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set_up_processing_server,
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make_streamable_and_wrap_in_packing_logic,
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QueuedStreamFunction,
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)
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from pyinfra.utils.func import starlift
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from test.utils.image import image_to_bytes
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@pytest.fixture
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def host():
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return "0.0.0.0"
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def get_free_port(host):
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sock = socket.socket()
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sock.bind((host, 0))
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return sock.getsockname()[1]
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@pytest.fixture
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def port(host):
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return get_free_port(host)
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@pytest.fixture
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def url(host, port):
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return f"http://{host}:{port}"
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@pytest.fixture
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def server(server_stream_function, buffer_size):
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flat_stream_buffer = FlatStreamBuffer(server_stream_function, buffer_size=buffer_size)
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queued_stream_function = QueuedStreamFunction(flat_stream_buffer)
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return set_up_processing_server(queued_stream_function)
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@pytest.fixture
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def server_stream_function(operation_conditionally_batched, batched):
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return make_streamable_and_wrap_in_packing_logic(operation_conditionally_batched, batched)
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@pytest.fixture
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def operation_conditionally_batched(operation, batched):
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return starlift(operation) if batched else operation
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@pytest.fixture
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def operation(core_operation):
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def op(data, metadata):
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result = core_operation(data)
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if isinstance(result, Generator):
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return zip(result, metadata)
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else:
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return result, metadata
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return op
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@pytest.fixture
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def core_operation(item_type, one_to_many):
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def upper(string: bytes):
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yield string.decode().upper().encode()
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def duplicate(string: bytes):
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for _ in range(2):
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yield upper(string)
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def rotate(im: bytes):
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im = Image.open(io.BytesIO(im))
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return image_to_bytes(im.rotate(90))
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def stream_pages(pdf: bytes):
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for i, page in enumerate(fitz.open(stream=pdf)):
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# yield page.get_pixmap().tobytes("png"), metadata
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yield f"page_{i}".encode()
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try:
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return {"string": duplicate if one_to_many else upper, "image": rotate, "pdf": stream_pages}[item_type]
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except KeyError:
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raise ValueError(f"No operation specified for item type {item_type}")
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@pytest.fixture(params=["pdf", "string", "image"])
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def item_type(request):
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return request.param
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@pytest.fixture(params=[True, False])
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def one_to_many(request):
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return request.param
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@pytest.fixture(params=[False, True])
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def batched(request):
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"""Controls, whether the buffer processor function of the webserver is applied to batches or single items."""
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return request.param
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@pytest.fixture
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def host_and_port(host, port):
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return {"host": host, "port": port}
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@retry(tries=5, timeout=1)
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def server_ready(url):
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response = requests.get(f"{url}/ready")
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response.raise_for_status()
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return response.status_code == 200
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@pytest.fixture(autouse=False, scope="function")
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def server_process(server, host_and_port, url):
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def get_server_process():
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return Process(target=serve, kwargs={"app": server, **host_and_port})
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server = get_server_process()
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server.start()
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if server_ready(url):
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yield
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server.kill()
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server.join()
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server.close()
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