BEGIN;
CREATE EXTENSION IF NOT EXISTS anon CASCADE;
-- TEST 1 : partial
SELECT anon.partial('abcdefgh',1,'xxxxxx',1) = 'axxxxxxh';
 ?column? 
----------
 t
(1 row)

SELECT anon.partial(NULL,1,'xxxxxx',1) IS NULL;
 ?column? 
----------
 t
(1 row)

SELECT anon.partial('1234567890',3,'*',3) = '123*890';
 ?column? 
----------
 t
(1 row)

SELECT anon.partial('dnfjdnvljdnvjsdn',1,'ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ',0) = 'dZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ';
 ?column? 
----------
 t
(1 row)

-- TEST 2 : partial_email
SELECT anon.partial_email('daamien@gmail.com') = 'da******@gm******.com';
 ?column? 
----------
 t
(1 row)

SELECT anon.partial_email('big@ben.co.uk') = 'bi******@be******.uk';
 ?column? 
----------
 t
(1 row)

SELECT anon.partial_email(NULL) IS NULL;
 ?column? 
----------
 t
(1 row)

ROLLBACK;