Term suggest API

I've started to make possible tu use term suggest API (http://www.elasticsearch.org/guide/reference/api/search/term-suggest/). 
I've make some code using this to query elastic search and everything gone right on this scenarios:  
- [x] completed   1 term  
- [x] multiple terms  
- [ ]   global suggest term ( I have to add this option ).  

I have executed the original tests and gave me the same results before than after my modifications, so i would like to start discussing if my implementation its good enough or not, and what parts I must change ( or all )
As I've said, It's still pending to add global suggest term option and tests for this.