anchor.diff:  
   [source,console]
   ----
  -GET _cat/shards
  +GET _cat/shards?v=true
   ----
   // TEST[setup:my_index]
   
  
positive.code: 
  [source,console]
  ----
  POST /my-index-000001/_forcemerge
  ----
  // TEST[setup:my_index]
  
  
negative.code: 
  [source,console]
  ----
  DELETE my-index-*
  ----
  // TEST[setup:my_index]
  
  