lib/benchmark_driver/output/compare.rb in benchmark_driver-0.14.20 vs lib/benchmark_driver/output/compare.rb in benchmark_driver-0.14.21

@@ -179,10 +179,21 @@
       end
       show_results(results, show_context: true)
     end
   end
 
+  def show_slower(better_result, worse_result)
+    top = worse_result.value
+    bottom = better_result.value
+    top, bottom = bottom, top if @metrics.first.larger_better
+
+    unless BenchmarkDriver::Result::ERROR.equal?(bottom)
+      ratio = top / bottom
+      "- %.2fx  #{@metrics.first.worse_word}" % ratio
+    end
+  end
+
   # @param [Array<BenchmarkDriver::Output::Compare::Result>] results
   # @param [TrueClass,FalseClass] show_context
   def show_results(results, show_context:)
     results = results.sort_by do |result|
       if @metrics.first.larger_better
@@ -192,17 +203,10 @@
       end
     end
 
     first = results.first
     results.each do |result|
-      if result != first
-        if @metrics.first.larger_better
-          ratio = (first.value / result.value)
-        else
-          ratio = (result.value / first.value)
-        end
-        slower = "- %.2fx  #{@metrics.first.worse_word}" % ratio
-      end
+      slower = show_slower(first, result) if result != first
       if show_context
         name = result.context.name
       else
         name = result.job
       end