unit test of tornado http server with multipart form-data request

[pivt]

I set up a tornado http server which receive some multipart form-data request, and store some of the arguments into mysql.

I have read the source code of httpserver_test.py, and found:

...

class HTTPServerTest(AsyncHTTPTestCase, LogTrapTestCase):

    def get_app(self):

        return Application([("/echo", EchoHandler),

                            ("/typecheck", TypeCheckHandler),

                            ])

    def test_query_string_encoding(self):

        response = self.fetch("/echo?foo=%C3%A9")

        data = json_decode(response.body)

        self.assertEqual(data, {u"foo": [u"\u00e9"]})

...

It seems the GET request can be easy test, but I want to test the POST request with multipart form-data parameters, how can I do that?

I have search that MultipartPostHandler module could post multipart form data, but I don't know how to integrate it into tornado.

[kzahel]

create a tornado.httpclient.HTTPRequest object with method POST and
body created by using a function like
http://code.activestate.com/recipes/146306-http-client-to-post-using-multipartform-data/

[Peter Bengtsson]

I suggest you use my tornado-utils package and use the TestClient
http://www.peterbe.com/plog/goodies-from-tornado-utils-testclient

It's heavily inspired by Django and has saved me many moons of writing tests.