package com.atlassian.webdriver.testing.rule;
   
   import com.atlassian.selenium.visualcomparison.VisualComparableClient;
   import com.atlassian.selenium.visualcomparison.VisualComparer;
   import com.atlassian.webdriver.AtlassianWebDriver;
   import com.atlassian.webdriver.LifecycleAwareWebDriverGrid;
   import com.atlassian.webdriver.visualcomparison.WebDriverVisualComparableClient;
   
   /**
   * @since 2.1
   */
  public class VisualComparerRule extends FailsafeExternalResource
  {
      private VisualComparer comparer;
  
      @Override
      protected void before() throws Throwable
      {
          AtlassianWebDriver driver = LifecycleAwareWebDriverGrid.getCurrentDriver();
          VisualComparableClient client = new WebDriverVisualComparableClient(driver);
          comparer = new VisualComparer(client);
      }
  
      public VisualComparer getComparer()
      {
          return comparer;
      }
  }