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|
import sys
import pytest
from asgiref.testing import ApplicationCommunicator
from asgiref.wsgi import WsgiToAsgi, WsgiToAsgiInstance
@pytest.mark.asyncio
async def test_basic_wsgi():
"""
Makes sure the WSGI wrapper has basic functionality.
"""
# Define WSGI app
def wsgi_application(environ, start_response):
assert environ["HTTP_TEST_HEADER"] == "test value 1,test value 2"
start_response("200 OK", [["X-Colour", "Blue"]])
yield b"first chunk "
yield b"second chunk"
# Wrap it
application = WsgiToAsgi(wsgi_application)
# Launch it as a test application
instance = ApplicationCommunicator(
application,
{
"type": "http",
"http_version": "1.0",
"method": "GET",
"path": "/foo/",
"query_string": b"bar=baz",
"headers": [
[b"test-header", b"test value 1"],
[b"test-header", b"test value 2"],
],
},
)
await instance.send_input({"type": "http.request"})
# Check they send stuff
assert (await instance.receive_output(1)) == {
"type": "http.response.start",
"status": 200,
"headers": [(b"x-colour", b"Blue")],
}
assert (await instance.receive_output(1)) == {
"type": "http.response.body",
"body": b"first chunk ",
"more_body": True,
}
assert (await instance.receive_output(1)) == {
"type": "http.response.body",
"body": b"second chunk",
"more_body": True,
}
assert (await instance.receive_output(1)) == {"type": "http.response.body"}
def test_script_name():
scope = {
"type": "http",
"http_version": "1.0",
"method": "GET",
"root_path": "/base",
"path": "/base/foo/",
"query_string": b"bar=baz",
"headers": [
[b"test-header", b"test value 1"],
[b"test-header", b"test value 2"],
],
}
adapter = WsgiToAsgiInstance(None)
adapter.scope = scope
environ = adapter.build_environ(scope, None)
assert environ["SCRIPT_NAME"] == "/base"
assert environ["PATH_INFO"] == "/foo/"
@pytest.mark.asyncio
async def test_wsgi_path_encoding():
"""
Makes sure the WSGI wrapper has basic functionality.
"""
# Define WSGI app
def wsgi_application(environ, start_response):
assert environ["SCRIPT_NAME"] == "/中国".encode().decode("latin-1")
assert environ["PATH_INFO"] == "/中文".encode().decode("latin-1")
start_response("200 OK", [])
yield b""
# Wrap it
application = WsgiToAsgi(wsgi_application)
# Launch it as a test application
instance = ApplicationCommunicator(
application,
{
"type": "http",
"http_version": "1.0",
"method": "GET",
"path": "/中文",
"root_path": "/中国",
"query_string": b"bar=baz",
"headers": [],
},
)
await instance.send_input({"type": "http.request"})
# Check they send stuff
assert (await instance.receive_output(1)) == {
"type": "http.response.start",
"status": 200,
"headers": [],
}
assert (await instance.receive_output(1)) == {
"type": "http.response.body",
"body": b"",
"more_body": True,
}
assert (await instance.receive_output(1)) == {"type": "http.response.body"}
@pytest.mark.asyncio
async def test_wsgi_empty_body():
"""
Makes sure WsgiToAsgi handles an empty body response correctly
"""
def wsgi_application(environ, start_response):
start_response("200 OK", [])
return []
application = WsgiToAsgi(wsgi_application)
instance = ApplicationCommunicator(
application,
{
"type": "http",
"http_version": "1.0",
"method": "GET",
"path": "/",
"query_string": b"",
"headers": [],
},
)
await instance.send_input({"type": "http.request"})
# response.start should always be send
assert (await instance.receive_output(1)) == {
"type": "http.response.start",
"status": 200,
"headers": [],
}
assert (await instance.receive_output(1)) == {"type": "http.response.body"}
@pytest.mark.asyncio
async def test_wsgi_clamped_body():
"""
Makes sure WsgiToAsgi clamps a body response longer than Content-Length
"""
def wsgi_application(environ, start_response):
start_response("200 OK", [("Content-Length", "8")])
return [b"0123", b"45", b"6789"]
application = WsgiToAsgi(wsgi_application)
instance = ApplicationCommunicator(
application,
{
"type": "http",
"http_version": "1.0",
"method": "GET",
"path": "/",
"query_string": b"",
"headers": [],
},
)
await instance.send_input({"type": "http.request"})
assert (await instance.receive_output(1)) == {
"type": "http.response.start",
"status": 200,
"headers": [(b"content-length", b"8")],
}
assert (await instance.receive_output(1)) == {
"type": "http.response.body",
"body": b"0123",
"more_body": True,
}
assert (await instance.receive_output(1)) == {
"type": "http.response.body",
"body": b"45",
"more_body": True,
}
assert (await instance.receive_output(1)) == {
"type": "http.response.body",
"body": b"67",
"more_body": True,
}
assert (await instance.receive_output(1)) == {"type": "http.response.body"}
@pytest.mark.asyncio
async def test_wsgi_stops_iterating_after_content_length_bytes():
"""
Makes sure WsgiToAsgi does not iterate after than Content-Length bytes
"""
def wsgi_application(environ, start_response):
start_response("200 OK", [("Content-Length", "4")])
yield b"0123"
pytest.fail("WsgiToAsgi should not iterate after Content-Length bytes")
yield b"4567"
application = WsgiToAsgi(wsgi_application)
instance = ApplicationCommunicator(
application,
{
"type": "http",
"http_version": "1.0",
"method": "GET",
"path": "/",
"query_string": b"",
"headers": [],
},
)
await instance.send_input({"type": "http.request"})
assert (await instance.receive_output(1)) == {
"type": "http.response.start",
"status": 200,
"headers": [(b"content-length", b"4")],
}
assert (await instance.receive_output(1)) == {
"type": "http.response.body",
"body": b"0123",
"more_body": True,
}
assert (await instance.receive_output(1)) == {"type": "http.response.body"}
@pytest.mark.asyncio
async def test_wsgi_multiple_start_response():
"""
Makes sure WsgiToAsgi only keep Content-Length from the last call to start_response
"""
def wsgi_application(environ, start_response):
start_response("200 OK", [("Content-Length", "5")])
try:
raise ValueError("Application Error")
except ValueError:
start_response("500 Server Error", [], sys.exc_info())
return [b"Some long error message"]
application = WsgiToAsgi(wsgi_application)
instance = ApplicationCommunicator(
application,
{
"type": "http",
"http_version": "1.0",
"method": "GET",
"path": "/",
"query_string": b"",
"headers": [],
},
)
await instance.send_input({"type": "http.request"})
assert (await instance.receive_output(1)) == {
"type": "http.response.start",
"status": 500,
"headers": [],
}
assert (await instance.receive_output(1)) == {
"type": "http.response.body",
"body": b"Some long error message",
"more_body": True,
}
assert (await instance.receive_output(1)) == {"type": "http.response.body"}
@pytest.mark.asyncio
async def test_wsgi_multi_body():
"""
Verify that multiple http.request events with body parts are all delivered
to the WSGI application.
"""
def wsgi_application(environ, start_response):
infp = environ["wsgi.input"]
body = infp.read(12)
assert body == b"Hello World!"
start_response("200 OK", [])
return []
application = WsgiToAsgi(wsgi_application)
instance = ApplicationCommunicator(
application,
{
"type": "http",
"http_version": "1.0",
"method": "POST",
"path": "/",
"query_string": b"",
"headers": [[b"content-length", b"12"]],
},
)
await instance.send_input(
{"type": "http.request", "body": b"Hello ", "more_body": True}
)
await instance.send_input({"type": "http.request", "body": b"World!"})
assert (await instance.receive_output(1)) == {
"type": "http.response.start",
"status": 200,
"headers": [],
}
assert (await instance.receive_output(1)) == {"type": "http.response.body"}
|
