anchor.diff:  
   ===== Painless test context
   
  -The `painless_test` context executes scripts as is and do not add any special parameters.
  +The `painless_test` context executes scripts as is and does not add any special parameters.
   The only variable that is available is `params`, which can be used to access user defined values.
   The result of the script is always converted to a string.
   If no context is specified then this context is used by default.
  
positive.code: [options="header"]
  |======
  | Name              | Required  | Default                | Description
  | `script`          | yes       | -                      | The script to execute
  | `context`         | no        | `painless_test`        | The context the script should be executed in.
  | `context_setup`   | no        | -                      | Additional parameters to the context.
  |======
  
negative.code: 
  document:: Contains the document that will be temporarily indexed in-memory and is accessible from the script.
  index:: The name of an index containing a mapping that is compatible with the document being indexed.
  query:: If `_score` is used in the script then a query can specify that it will be used to compute a score.
  
  *Example*
  
  