billing: fix integration test

This actually required three little fixes:
* couchrest_session_store updated to 0.1.2 to make sure we store sessions
* use BraintreeTestApp to proxy braintree requests that RackTest assumes
  are local
* do not attempt to read status after a capybara request

Also refactored the test a bit to set @user and login during setup.

1 files changed, 36 insertions, 0 deletions

diff --git a/billing/lib/braintree_test_app.rb b/billing/lib/braintree_test_app.rb
new file mode 100644
index 0000000..41c327d
--- /dev/null
+++ b/billing/lib/braintree_test_app.rb
@@ -0,0 +1,36 @@
+# RackTest assumes all requests to be local.
+# Braintree requests need to go out to a different server though.
+# So we use a middleware to catch these and send them out again.
+
+class BraintreeTestApp
+  def initialize(app)
+    @app = app
+  end
+
+  def call(env)
+    @env = env
+    config = Braintree::Configuration.instantiate
+    if request.path =~ /\/merchants\/#{config.merchant_id}\/transparent_redirect_requests$/
+      #proxy post to braintree
+      uri = URI.parse(config.protocol + "://" + config.server + ":" +
+        config.port.to_s + request.path)
+      http = Net::HTTP.new(uri.host, uri.port)
+      res = http.post(uri.path, request.body.read)
+
+      if res.code == "303"
+        header_hash = res.header.to_hash
+        header_hash["location"].first.gsub!("http://localhost:3000/", "http://www.example.com/")
+        [303, {"location" => header_hash["location"].first}, ""]
+      else
+        raise "unexpected response from Braintree: expected a 303"
+      end
+    else
+      @app.call(env)
+    end
+  end
+
+  def request
+    @request = Rack::Request.new(@env)
+  end
+end
+