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I'm working on an application that reaches out to a web service. I'd like to develop a proxy class that returns a fake response from the service, so I don't have to constantly be hitting it with requests while I'm developing/testing other parts of the app.
My application is expecting a response generated via Net::HTTP.
response = Net::HTTP.get(URI.parse('http://foo.com'))
case response
when Net::HTTPOK
# do something fun
when Net::HTTPUnauthorized
# you get the idea
How can I manufacture a response object, give it all the right headers, return a body string, etc?
response = ProxyClass.response_object
case response
when Net::HTTPOk
# my app doesn't know it's being lied to
Thanks.
697
It's actually not that hard to roll your own fake responses directly with Net::HTTP. Here's a simple 200 OK with a cookie header:
def fake_response
net_http_resp = Net::HTTPResponse.new(1.0, 200, "OK")
net_http_resp.add_field 'Set-Cookie', 'Monster'
RestClient::Response.create("Body goes here", net_http_resp, nil)
end
Since few of us are using raw Net::HTTP anymore, the (optional) last line wraps it up as a RestClient::Response, which can then be stubbed into RestClient:
stub(RestClient).post(anything) { fake_response }
I would start with FakeWeb and see if that meets your needs. If it doesn't you can probably gut whatever you need out of the internals and create your own solution.
35
I know this post is old, but instead of FakeWeb which seems to be largely dead, try webmock. It seems to be more full-featured and very active.
5
I would look into a mocking library like mocha.
Then you should be able to setup a mock object to help test:
Then following example is from Tim Stephenson's RaddOnline blog, which also includes a more complete tutorial:
def setup @http_mock = mock('Net::HTTPResponse') @http_mock .stubs(:code => '200', :message => "OK", :content_type => > "text/html", :body => '<title>Test</title><body>Body of the page</body>') end
4
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