Fix URI in batched request to allow query parameters

lib/google/api_client/batch.rb

@@ -286,7 +286,7 @@ module Google
       #   the serialized request
       def serialize_call(call_id, call)
         method, uri, headers, body = call.to_http_request
-        request = "#{method.to_s.upcase} #{Addressable::URI.parse(uri).path} HTTP/1.1"
+        request = "#{method.to_s.upcase} #{Addressable::URI.parse(uri).request_uri} HTTP/1.1"
         headers.each do |header, value|
           request << "\r\n%s: %s" % [header, value]
         end

spec/google/api_client/batch_spec.rb

@@ -33,6 +33,15 @@ describe Google::APIClient::BatchRequest do
     end).should raise_error(Google::APIClient::BatchError)
   end
 
+  it 'should allow query parameters in batch requests' do
+    batch = Google::APIClient::BatchRequest.new
+    batch.add(:uri => 'https://example.com', :parameters => {
+      'a' => '12345'
+    })
+    method, uri, headers, body = batch.to_http_request
+    body.read.should include("/?a=12345")
+  end
+
   describe 'with the discovery API' do
     before do
       CLIENT.authorization = nil