starlette/tests/test_formparsers.py

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import os
from starlette.formparsers import UploadFile
from starlette.requests import Request
from starlette.responses import JSONResponse
from starlette.testclient import TestClient
class ForceMultipartDict(dict):
def __bool__(self):
return True
# FORCE_MULTIPART is an empty dict that boolean-evaluates as `True`.
FORCE_MULTIPART = ForceMultipartDict()
def app(scope):
async def asgi(receive, send):
request = Request(scope, receive)
data = await request.form()
output = {}
for key, value in data.items():
if isinstance(value, UploadFile):
content = await value.read()
output[key] = {"filename": value.filename, "content": content.decode()}
else:
output[key] = value
await request.close()
response = JSONResponse(output)
await response(receive, send)
return asgi
def test_multipart_request_data(tmpdir):
client = TestClient(app)
response = client.post("/", data={"some": "data"}, files=FORCE_MULTIPART)
assert response.json() == {"some": "data"}
def test_multipart_request_files(tmpdir):
path = os.path.join(tmpdir, "test.txt")
with open(path, "wb") as file:
file.write(b"<file content>")
client = TestClient(app)
response = client.post("/", files={"test": open(path, "rb")})
assert response.json() == {
"test": {"filename": "test.txt", "content": "<file content>"}
}
def test_urlencoded_request_data(tmpdir):
client = TestClient(app)
response = client.post("/", data={"some": "data"})
assert response.json() == {"some": "data"}
def test_no_request_data(tmpdir):
client = TestClient(app)
response = client.post("/")
assert response.json() == {}