Rspec: how to spec request.env in a helper spec?

Question

In my helper module, I have:

def abc(url)
  ...
  if request.env[\'HTTP_USER_AGENT\']
    do something
  end
end

In my spec file, I have:

Answer 1

for those who use request specs instead of controller specs and want to set request.env can do it like this:

Rails.application.env_config["whatever"] = "whatever"

this will make request.env["whatever"] available in your controllers with value you gave it in your specs.