I'm currently testing my app with suggestions from http://flask.pocoo.org/docs/testing/, but I would like to add a header to a post request.
My request is currently:
self.app.post('/v0/scenes/test/foo', data=dict(image=(StringIO('fake image'), 'image.png')))
but I would like to add a content-md5 to the request. Is this possible?
My investigations:
Flask Client (in flask/testing.py) extends Werkzeug's Client, documented here: http://werkzeug.pocoo.org/docs/test/
As you can see, post uses open. But open only has:
Parameters:
as_tuple – Returns a tuple in the form (environ, result)
buffered – Set this to True to buffer the application run. This will automatically close the application for you as well.
follow_redirects – Set this to True if the Client should follow HTTP redirects.
So it looks like it's not supported. How might I get such a feature working, though?
open also take *args and **kwargs which used as EnvironBuilder arguments. So you can add just headers argument to your first post request:
with self.app.test_client() as client:
client.post('/v0/scenes/test/foo',
data=dict(image=(StringIO('fake image'), 'image.png')),
headers={'content-md5': 'some hash'});
Werkzeug to the rescue!
from werkzeug.test import EnvironBuilder, run_wsgi_app
from werkzeug.wrappers import Request
builder = EnvironBuilder(path='/v0/scenes/bucket/foo', method='POST', data={'image': (StringIO('fake image'), 'image.png')}, \
headers={'content-md5': 'some hash'})
env = builder.get_environ()
(app_iter, status, headers) = run_wsgi_app(http.app.wsgi_app, env)
status = int(status[:3]) # output will be something like 500 INTERNAL SERVER ERROR
来源：https://stackoverflow.com/questions/18263844/flask-and-werkzeug-testing-a-post-request-with-custom-headers