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

As @taro suggests in a comment above, the syntax that works for me in functional and integration tests is:

post :create, {param1: 'value1', param2: 'value2', format: 'json'}

(The curly braces aren't always necessary, but sometimes it doesn't work if they're missing, so I always add them.)

Here's what params and request.format look like for a post of that sort:

params: {"param1"=>"value1", "param2"=>"value2", "format"=>"json", "controller"=>"things", "action"=>"create"}

request.format: application/json