Allow options when executing batch requests (googleapis#48)

lib/google/api_client.rb

@@ -542,10 +542,9 @@ def generate_request(options={})
     #
     # @see Google::APIClient#generate_request
     def execute(*params)
-      if params.last.kind_of?(Google::APIClient::Request) &&
-          params.size == 1
-        request = params.pop
-        options = {}
+      if params.first.kind_of?(Google::APIClient::Request)
+        request = params.shift
+        options = params.shift || {}
       else
         # This block of code allows us to accept multiple parameter passing
         # styles, and maintaining some backwards compatibility.

spec/google/api_client_spec.rb

@@ -143,6 +143,21 @@
       )
     end
 
+    it 'should accept options with batch/request style execute' do
+      client.authorization.access_token = "abcdef"
+      new_auth = Signet::OAuth2::Client.new(:access_token => '12345')
+      request = client.generate_request(
+        :api_method => @prediction.training.insert,
+        :parameters => {'data' => '12345'}
+      )
+      client.execute(
+        request,
+        :authorization => new_auth,
+        :connection => @connection
+      )
+    end
+
+
     it 'should accept options in array style execute' do
        client.authorization.access_token = "abcdef"
        new_auth = Signet::OAuth2::Client.new(:access_token => '12345')