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import pytest
from werkzeug.middleware.lint import HTTPWarning
from werkzeug.middleware.lint import LintMiddleware
from werkzeug.middleware.lint import WSGIWarning
from werkzeug.test import create_environ
from werkzeug.test import run_wsgi_app
def dummy_application(environ, start_response):
start_response("200 OK", [("Content-Type", "text/plain")])
return [b"Foo"]
def test_lint_middleware():
"""Test lint middleware runs for a dummy applications without warnings"""
app = LintMiddleware(dummy_application)
environ = create_environ("/test")
app_iter, status, headers = run_wsgi_app(app, environ, buffered=True)
assert status == "200 OK"
@pytest.mark.parametrize(
"key, value, message",
[
("wsgi.version", (0, 7), "Environ is not a WSGI 1.0 environ."),
("SCRIPT_NAME", "test", "'SCRIPT_NAME' does not start with a slash:"),
("PATH_INFO", "test", "'PATH_INFO' does not start with a slash:"),
],
)
def test_lint_middleware_check_environ(key, value, message):
app = LintMiddleware(dummy_application)
environ = create_environ("/test")
environ[key] = value
with pytest.warns(WSGIWarning, match=message):
app_iter, status, headers = run_wsgi_app(app, environ, buffered=True)
assert status == "200 OK"
def test_lint_middleware_invalid_status():
def my_dummy_application(environ, start_response):
start_response("20 OK", [("Content-Type", "text/plain")])
return [b"Foo"]
app = LintMiddleware(my_dummy_application)
environ = create_environ("/test")
with pytest.warns(WSGIWarning) as record:
run_wsgi_app(app, environ, buffered=True)
# Returning status 20 should raise three different warnings
assert len(record) == 3
@pytest.mark.parametrize(
"headers, message",
[
(tuple([("Content-Type", "text/plain")]), "Header list is not a list."),
(["fo"], "Header items must be 2-item tuples."),
([("status", "foo")], "The status header is not supported."),
],
)
def test_lint_middleware_http_headers(headers, message):
def my_dummy_application(environ, start_response):
start_response("200 OK", headers)
return [b"Foo"]
app = LintMiddleware(my_dummy_application)
environ = create_environ("/test")
with pytest.warns(WSGIWarning, match=message):
run_wsgi_app(app, environ, buffered=True)
def test_lint_middleware_invalid_location():
def my_dummy_application(environ, start_response):
start_response("200 OK", [("location", "foo")])
return [b"Foo"]
app = LintMiddleware(my_dummy_application)
environ = create_environ("/test")
with pytest.warns(HTTPWarning, match="Absolute URLs required for location header."):
run_wsgi_app(app, environ, buffered=True)
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