1 files changed, 5 insertions, 0 deletions
diff --git a/mysql-test/t/func_str.test b/mysql-test/t/func_str.test
index 717b9c86a07..bd92182b101 100644
--- a/mysql-test/t/func_str.test
+++ b/mysql-test/t/func_str.test
@@ -36,6 +36,11 @@ select insert('txs',2,1,'hi'),insert('is ',4,0,'a'),insert('txxxxt',2,4,'es');
 select replace('aaaa','a','b'),replace('aaaa','aa','b'),replace('aaaa','a','bb'),replace('aaaa','','b'),replace('bbbb','a','c');
 select replace(concat(lcase(concat('THIS',' ','IS',' ','A',' ')),ucase('false'),' ','test'),'FALSE','REAL') ;
 select soundex(''),soundex('he'),soundex('hello all folks');
+select 'mood' sounds like 'mud';
+select 'Glazgo' sounds like 'Liverpool';
+select null sounds like 'null';
+select 'null' sounds like null;
+select null sounds like null;
 select md5('hello');
 select sha('abc');
 select sha1('abc');