How to post JSON data in rails 3 functional test

Question

I plan to use JSON data in both request and response in my project and having some problems in testing.

After searching for a while, I find the following code which uses

Answer 1

Assuming you have a controller named api, a method named new, and you're in the test for the api controller:

@request.env["RAW_POST_DATA"] = '{ "foo" : "bar" }'
post :new

did the trick for me.