Add test for ComparsionChartBuilder
Add test for ComparsionChartBuilder

klgilbert/ruby-bench-web,ruby-bench/ruby-bench-web,bmarkons/ruby-bench-web,ruby-bench/ruby-bench-web,ruby-bench/ruby-bench-web,bmarkons/ruby-bench-web,bmarkons/ruby-bench-web,klgilbert/ruby-bench-web,klgilbert/ruby-bench-web