starlette/tests/middleware/test_gzip.py

107 lines
3.8 KiB
Python

from starlette.applications import Starlette
from starlette.middleware import Middleware
from starlette.middleware.gzip import GZipMiddleware
from starlette.requests import Request
from starlette.responses import ContentStream, PlainTextResponse, StreamingResponse
from starlette.routing import Route
from tests.types import TestClientFactory
def test_gzip_responses(test_client_factory: TestClientFactory) -> None:
def homepage(request: Request) -> PlainTextResponse:
return PlainTextResponse("x" * 4000, status_code=200)
app = Starlette(
routes=[Route("/", endpoint=homepage)],
middleware=[Middleware(GZipMiddleware)],
)
client = test_client_factory(app)
response = client.get("/", headers={"accept-encoding": "gzip"})
assert response.status_code == 200
assert response.text == "x" * 4000
assert response.headers["Content-Encoding"] == "gzip"
assert int(response.headers["Content-Length"]) < 4000
def test_gzip_not_in_accept_encoding(test_client_factory: TestClientFactory) -> None:
def homepage(request: Request) -> PlainTextResponse:
return PlainTextResponse("x" * 4000, status_code=200)
app = Starlette(
routes=[Route("/", endpoint=homepage)],
middleware=[Middleware(GZipMiddleware)],
)
client = test_client_factory(app)
response = client.get("/", headers={"accept-encoding": "identity"})
assert response.status_code == 200
assert response.text == "x" * 4000
assert "Content-Encoding" not in response.headers
assert int(response.headers["Content-Length"]) == 4000
def test_gzip_ignored_for_small_responses(
test_client_factory: TestClientFactory,
) -> None:
def homepage(request: Request) -> PlainTextResponse:
return PlainTextResponse("OK", status_code=200)
app = Starlette(
routes=[Route("/", endpoint=homepage)],
middleware=[Middleware(GZipMiddleware)],
)
client = test_client_factory(app)
response = client.get("/", headers={"accept-encoding": "gzip"})
assert response.status_code == 200
assert response.text == "OK"
assert "Content-Encoding" not in response.headers
assert int(response.headers["Content-Length"]) == 2
def test_gzip_streaming_response(test_client_factory: TestClientFactory) -> None:
def homepage(request: Request) -> StreamingResponse:
async def generator(bytes: bytes, count: int) -> ContentStream:
for index in range(count):
yield bytes
streaming = generator(bytes=b"x" * 400, count=10)
return StreamingResponse(streaming, status_code=200)
app = Starlette(
routes=[Route("/", endpoint=homepage)],
middleware=[Middleware(GZipMiddleware)],
)
client = test_client_factory(app)
response = client.get("/", headers={"accept-encoding": "gzip"})
assert response.status_code == 200
assert response.text == "x" * 4000
assert response.headers["Content-Encoding"] == "gzip"
assert "Content-Length" not in response.headers
def test_gzip_ignored_for_responses_with_encoding_set(
test_client_factory: TestClientFactory,
) -> None:
def homepage(request: Request) -> StreamingResponse:
async def generator(bytes: bytes, count: int) -> ContentStream:
for index in range(count):
yield bytes
streaming = generator(bytes=b"x" * 400, count=10)
return StreamingResponse(streaming, status_code=200, headers={"Content-Encoding": "text"})
app = Starlette(
routes=[Route("/", endpoint=homepage)],
middleware=[Middleware(GZipMiddleware)],
)
client = test_client_factory(app)
response = client.get("/", headers={"accept-encoding": "gzip, text"})
assert response.status_code == 200
assert response.text == "x" * 4000
assert response.headers["Content-Encoding"] == "text"
assert "Content-Length" not in response.headers