small compress/uncompress modification after monty's review

1 files changed, 7 insertions, 2 deletions

diff --git a/mysql-test/t/func_compress.test b/mysql-test/t/func_compress.test
index 2f86a414792..826721a4053 100644
--- a/mysql-test/t/func_compress.test
+++ b/mysql-test/t/func_compress.test
@@ -7,7 +7,6 @@ select @test_compress_string:='string for test compress function aaaaaaaaaaaaaaa
 select length(@test_compress_string);
 
 select uncompress(compress(@test_compress_string));
-select uncompress(@test_compress_string);
 select uncompressed_length(compress(@test_compress_string))=length(@test_compress_string);
 select uncompressed_length(compress(@test_compress_string));
 select length(compress(@test_compress_string))<length(@test_compress_string);
@@ -17,4 +16,10 @@ insert into t1 (a,b,c) values (compress(@test_compress_string),compress(@test_co
 select uncompress(a) from t1;
 select uncompress(b) from t1;
 select concat('|',c,'|') from t1;
-drop table t1;
\ No newline at end of file
+drop table t1;
+
+select compress("");
+select uncompress("");
+select uncompress(compress(""));
+select uncompressed_length("");
+