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from wsgiref.validate import validator
import pytest
from paste import if_none_match
from ..common_wsgi import call_app
ETAG = "1234"
@pytest.fixture
def app():
@validator
@if_none_match
@validator
def app(environ, start_response):
body = b"Hello, world!"
etag_header = ("ETag", f'"{ETAG}"')
if environ["REQUEST_METHOD"] == "HEAD":
start_response(
"200 OK",
[
("Content-Type", "text/plain"),
("Content-Length", str(len(body))),
etag_header,
],
)
return []
start_response("200 OK", [("Content-Type", "text/plain"), etag_header])
return [body]
return app
@pytest.mark.parametrize("method", ["POST", "PUT", "DELETE"])
def test_non_get_or_head_request_passthrough(app, method):
environ = {"REQUEST_METHOD": method, "HTTP_IF_NONE_MATCH": f'"{ETAG}"'}
response = call_app(app, environ)
assert response.data == b"Hello, world!"
assert response.status == "200 OK"
assert ("Content-Type", "text/plain") in response.headers
def test_if_none_match_header_not_set(app):
environ = {"REQUEST_METHOD": "GET"}
response = call_app(app, environ)
assert response.data == b"Hello, world!"
assert response.status == "200 OK"
assert ("Content-Type", "text/plain") in response.headers
@pytest.mark.parametrize("value", [f'"{ETAG}"', f'W/"{ETAG}"'])
def test_etag_matches_if_none_match_header(app, value):
environ = {"REQUEST_METHOD": "GET", "HTTP_IF_NONE_MATCH": value}
response = call_app(app, environ)
assert response.data == b""
assert response.status == "304 Not Modified"
@pytest.mark.parametrize(
"value",
[
f'"{ETAG}", "54321"',
f'"54321", "{ETAG}", "098765"',
f'"54321", "{ETAG}"',
f'W/"{ETAG}", "54321"',
f'"54321", W/"{ETAG}", "098765"',
f'"54321", W/"{ETAG}"',
],
)
def test_etag_matches_if_none_match_header_list(app, value):
environ = {"REQUEST_METHOD": "GET", "HTTP_IF_NONE_MATCH": value}
response = call_app(app, environ)
assert response.data == b""
assert response.status == "304 Not Modified"
def test_etag_matches_if_none_match_header_list2(app):
environ = {"REQUEST_METHOD": "GET", "HTTP_IF_NONE_MATCH": f'"54321", "{ETAG}"'}
response = call_app(app, environ)
assert response.data == b""
assert response.status == "304 Not Modified"
def test_etag_matches_if_none_match_header_star(app):
environ = {"REQUEST_METHOD": "GET", "HTTP_IF_NONE_MATCH": "*"}
response = call_app(app, environ)
assert response.data == b""
assert response.status == "304 Not Modified"
def test_missing_etag_does_not_match_if_none_match_header_star():
@validator
@if_none_match
@validator
def app(environ, start_response):
body = b"Hello, world!"
if environ["REQUEST_METHOD"] == "HEAD":
start_response(
"200 OK",
[
("Content-Type", "text/plain"),
("Content-Length", str(len(body))),
],
)
return []
start_response("200 OK", [("Content-Type", "text/plain")])
return [body]
environ = {"REQUEST_METHOD": "GET", "HTTP_IF_NONE_MATCH": "*"}
response = call_app(app, environ)
assert response.data == b"Hello, world!"
assert response.status == "200 OK"
def test_etag_does_not_match_if_none_match_header(app):
environ = {"REQUEST_METHOD": "GET", "HTTP_IF_NONE_MATCH": '"54321"'}
response = call_app(app, environ)
assert response.data == b"Hello, world!"
assert response.status == "200 OK"
assert ("Content-Type", "text/plain") in response.headers
def test_etag_does_not_match_if_none_match_header_list(app):
environ = {"REQUEST_METHOD": "GET", "HTTP_IF_NONE_MATCH": '"123","4567","*"'}
response = call_app(app, environ)
assert response.data == b"Hello, world!"
assert response.status == "200 OK"
assert ("Content-Type", "text/plain") in response.headers
def test_etag_does_not_match_if_none_match_malformed_header(app):
environ = {"REQUEST_METHOD": "GET", "HTTP_IF_NONE_MATCH": "{ETAG}"}
response = call_app(app, environ)
assert response.data == b"400 Bad Request\n"
assert response.status == "400 Bad Request"
assert ("Content-Type", "text/plain") in response.headers
|
