Need a playground to quickly test analyzer stacks

(from email by Robert Oschler)

(Would be useful to have)... a convenient "playground" for testing index and query filters?

I'm imagining a utility where you can select a set of index and query
filters, and then enter a string as a test "document" and a query string
and see what kind of scores come back during a matching attempt. This
would be a big aid in crafting an indexing/query scheme to get the desired
matching profile working. Otherwise the only technique I can think of is
to iteratively modify the schema file and retest with the admin panel with
each combination of filters.