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from __future__ import annotations
from collections.abc import AsyncGenerator
from datetime import datetime
from datetime import timezone
from http import HTTPStatus
from io import BytesIO
from pathlib import Path
from typing import Any
import pytest
from hypothesis import given
from hypothesis import strategies as strategies
from werkzeug.datastructures import Headers
from werkzeug.exceptions import RequestedRangeNotSatisfiable
from quart.testing import no_op_push
from quart.typing import HTTPScope
from quart.wrappers import Request
from quart.wrappers.response import DataBody
from quart.wrappers.response import FileBody
from quart.wrappers.response import IOBody
from quart.wrappers.response import IterableBody
from quart.wrappers.response import Response
async def test_data_wrapper() -> None:
wrapper = DataBody(b"abcdef")
results = []
async with wrapper as response:
async for data in response:
results.append(data)
assert results == [b"abcdef"]
async def _simple_async_generator() -> AsyncGenerator[bytes, None]:
yield b"abc"
yield b"def"
@pytest.mark.parametrize(
"iterable",
[[b"abc", b"def"], (data for data in [b"abc", b"def"]), _simple_async_generator()],
)
async def test_iterable_wrapper(iterable: Any) -> None:
wrapper = IterableBody(iterable)
results = []
async with wrapper as response:
async for data in response:
results.append(data)
assert results == [b"abc", b"def"]
async def test_file_wrapper(tmp_path: Path) -> None:
file_ = tmp_path / "file_wrapper"
file_.write_text("abcdef")
wrapper = FileBody(Path(file_), buffer_size=3)
results = []
async with wrapper as response:
async for data in response:
results.append(data)
assert results == [b"abc", b"def"]
async def test_io_wrapper() -> None:
wrapper = IOBody(BytesIO(b"abcdef"), buffer_size=3)
results = []
async with wrapper as response:
async for data in response:
results.append(data)
assert results == [b"abc", b"def"]
@pytest.mark.parametrize(
"status, expected", [(201, 201), (None, 200), (HTTPStatus.PARTIAL_CONTENT, 206)]
)
def test_response_status(status: Any, expected: int) -> None:
response = Response(b"Body", status=status)
assert response.status_code == expected
async def test_response_body() -> None:
response = Response(b"Body")
assert b"Body" == (await response.get_data())
# Fetch again to ensure it isn't exhausted
assert b"Body" == (await response.get_data())
async def test_response_make_conditional(http_scope: HTTPScope) -> None:
request = Request(
"GET",
"https",
"/",
b"",
Headers([("Range", "bytes=0-3")]),
"",
"1.1",
http_scope,
send_push_promise=no_op_push,
)
response = Response(b"abcdef")
await response.make_conditional(request, accept_ranges=True, complete_length=6)
assert b"abcd" == (await response.get_data())
assert response.status_code == 206
assert response.accept_ranges == "bytes"
assert response.content_range.units == "bytes"
assert response.content_range.start == 0
assert response.content_range.stop == 4
assert response.content_range.length == 6
async def test_response_make_conditional_no_condition(http_scope: HTTPScope) -> None:
request = Request(
"GET",
"https",
"/",
b"",
Headers(),
"",
"1.1",
http_scope,
send_push_promise=no_op_push,
)
response = Response(b"abcdef")
await response.make_conditional(request, complete_length=6)
assert b"abcdef" == (await response.get_data())
assert response.status_code == 200
async def test_response_make_conditional_out_of_bound(http_scope: HTTPScope) -> None:
request = Request(
"GET",
"https",
"/",
b"",
Headers([("Range", "bytes=0-666")]),
"",
"1.1",
http_scope,
send_push_promise=no_op_push,
)
response = Response(b"abcdef")
await response.make_conditional(request, complete_length=6)
assert b"abcdef" == (await response.get_data())
assert response.status_code == 206
async def test_response_make_conditional_not_modified(http_scope: HTTPScope) -> None:
response = Response(b"abcdef")
await response.add_etag()
request = Request(
"GET",
"https",
"/",
b"",
Headers([("If-None-Match", response.get_etag()[0])]),
"",
"1.1",
http_scope,
send_push_promise=no_op_push,
)
await response.make_conditional(request)
assert response.status_code == 304
assert b"" == (await response.get_data())
assert "content-length" not in response.headers
@pytest.mark.parametrize(
"range_",
["second=0-3", "bytes=0-2,3-5", "bytes=8-16"],
)
async def test_response_make_conditional_not_satisfiable(
range_: str, http_scope: HTTPScope
) -> None:
request = Request(
"GET",
"https",
"/",
b"",
Headers([("Range", range_)]),
"",
"1.1",
http_scope,
send_push_promise=no_op_push,
)
response = Response(b"abcdef")
with pytest.raises(RequestedRangeNotSatisfiable):
await response.make_conditional(request, complete_length=6)
def test_response_cache_control() -> None:
response = Response(b"Body")
response.cache_control.max_age = 2
assert response.headers["Cache-Control"] == "max-age=2"
response.cache_control.no_cache = True
assert response.headers["Cache-Control"] == "max-age=2, no-cache"
async def test_empty_response() -> None:
response = Response()
assert b"" == (await response.get_data())
@given(
value=strategies.datetimes(
timezones=strategies.just(timezone.utc),
# The min_value and max_value are needed because
# wsgiref uses the function time.gmtime on the generated timestamps,
# which fails on windows with values outside of these bounds
min_value=datetime(1970, 1, 2),
max_value=datetime(3000, 1, 2),
)
)
@pytest.mark.parametrize("header", ["date", "expires", "last_modified", "retry_after"])
def test_datetime_headers(header: str, value: datetime) -> None:
response = Response(b"Body")
value = value.replace(microsecond=0)
setattr(response, header, value)
assert response.headers.get(header.title().replace("_", "-"))
assert getattr(response, header) == value
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