I've got a helper inside application_helper.rb:
def track_event(event, opts = {})
return "" if Rails.env.development?
javascript_tag do
"mpmetrics.track(\"#{event}\");"
end
end
I want to write a test so I can improve this helper:
require File.dirname(__FILE__) + "/../test_helper.rb"
require "application_helper"
require 'haml/helpers/action_view_mods'
class ApplicationHelperTest < Test::Unit::TestCase
include ActionView::Helpers
include ApplicationHelper
include Haml
include Haml::Helpers
context "mixpanel api" do
should "track a simple event" do
assert_equal "blah", track_event("blah")
end
end
end
However when I run it, I get:
1) Error:
test: mixpanel api should track a simple event.
(ApplicationHelperTest):
NoMethodError: undefined method `output_buffer=' for
#<ApplicationHelperTest:0xb729fd8>
haml (3.0.24) lib/haml/helpers/action_view_mods.rb:92:in `capture'
app/helpers/application_helper.rb:12:in `track_event'
helpers/application_helper_test.rb:17:in
`__bind_1290608547_577398'
I can't figure out what I have to include to get this to run. I know
it's related to the javascript_tag, as a test on a helper that doesn't
use javascript_tag works just fine.
Any advice would be appreciated. Thanks.
Sean
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