mariadb/mysql-test/t/max_sp_recursion_depth_func.test

############# mysql-test\t\max_sp_recursion_depth_func.test ###################
#                                                                             #
# Variable Name: max_sp_recursion_depth               					         #
# Scope: SESSION                                                              #
# Access Type: Dynamic                                                        #
# Data Type: NUMERIC                                                          #
# Default Value: 0                                                            #
# Max Value:    25                                                            #
#                                                                             #
#                                                                             #
# Creation Date: 2008-03-02                                                   #
# Author:  Sharique Abdullah                                                      #
#                                                                             #
# Description: Test Cases of Dynamic System Variable "max_sp_recursion_depth  #
#              that checks behavior of this variable in the following ways    #
#              * Functionality based on different values                      #
#                                                                             #
#Reference:http://dev.mysql.com/doc/refman/5.1/en/server-system-variables.html#
#  option_mysqld_max_sp_recursion_depth                                       #
#                                                                             #
###############################################################################


#
# Setup
#

SET @session_max_recursion_depth = @@SESSION.max_sp_recursion_depth;


--echo '#--------------------FN_DYNVARS_099_01-------------------------#'
##########################################################
#    Test behavior of variable on new connection # 01    #
##########################################################
--echo ** Connecting test_con1 using username 'root' **
CONNECT (test_con1,localhost,root,,);
--echo ** Connection test_con1 **
CONNECTION test_con1;


# Setting session value of variable
SET @@session.max_sp_recursion_depth = 10;
SELECT @@session.max_sp_recursion_depth;
# create procedure to add rows

--disable_warnings
DROP PROCEDURE IF EXISTS sp_addRecords;
--enable_warnings

DELIMITER //;

CREATE PROCEDURE sp_addRecords (IN var1 INT,IN var2 INT)
BEGIN
SELECT var1,var2;
IF var1 < var2 THEN
   CALL sp_addRecords(var1+1,var2);
   SELECT var1,var2;
END IF;
END //

DELIMITER ;//


CALL sp_addRecords(0,8);

--echo '#--------------------FN_DYNVARS_099_02-------------------------#'
##########################################################
#    Test behavior of variable on new connection # 02    #
##########################################################

--echo ** Connecting test_con2 using username 'root' **
CONNECT (test_con2,localhost,root,,);
--echo ** Connection test_con2 **
connection test_con2;


# Setting session value of variable and inserting data in table
SET @@session.max_sp_recursion_depth = 4;
SELECT @@session.max_sp_recursion_depth;
# create procedure to add rows

--disable_warnings
DROP PROCEDURE IF EXISTS sp_addRecords1;
--enable_warnings

DELIMITER //;

CREATE PROCEDURE sp_addRecords1 (IN var1 INT,IN var2 INT)
BEGIN
SELECT var1,var2;
IF var1 < var2 THEN
   CALL sp_addRecords1(var1+1,var2);
   SELECT var1,var2;
END IF;
END //

DELIMITER ;//


CALL sp_addRecords1(0,4);




--echo '#---------------------FN_DYNVARS_99_03----------------------#'
####################################################################
#  Check if max_sp_recursion_depth value is set to 10              #
####################################################################
SET @@max_sp_recursion_depth = 10;
# create procedure to add rows

--disable_warnings
DROP PROCEDURE IF EXISTS sp_addRecords2;
--enable_warnings

DELIMITER //;

CREATE PROCEDURE sp_addRecords2(IN var1 INT,IN var2 INT)
BEGIN
SELECT var1,var2;
IF var1 < var2 THEN
   CALL sp_addRecords2(var1+1,var2);
   SELECT var1,var2;
END IF;
END //

DELIMITER ;//


CALL sp_addRecords2(0,8);


--echo '#---------------------FN_DYNVARS_99_04----------------------#'
###############################################################################
#Check if max_sp_recursion_depth value is set lower then called recursion value              
###############################################################################


SET @@max_sp_recursion_depth = 4;
# create procedure to add rows
#DROP PROCEDURE  IF EXISTS  sp_addRecords1;

--disable_warnings
DROP PROCEDURE IF EXISTS sp_addRecords3;
--enable_warnings

DELIMITER //;

CREATE PROCEDURE sp_addRecords3 (IN var1 INT,IN var2 INT)
BEGIN
SELECT var1,var2;
IF var1 < var2 THEN
   CALL sp_addRecords3(var1+1,var2);
   SELECT var1,var2;
END IF;
END //

DELIMITER ;//

--echo Expected error 'SP Recursion limit'
--ERROR ER_SP_RECURSION_LIMIT
CALL sp_addRecords3(0,8);

#
# Cleanup
#

--echo ** Connection default **
connection default;

--echo ** Disconnecting test_con1, test_con2 **
disconnect test_con1;
disconnect test_con2;

--disable_warnings
DROP PROCEDURE IF EXISTS sp_addRecords;
DROP PROCEDURE IF EXISTS sp_addRecords1;
DROP PROCEDURE IF EXISTS sp_addRecords2;
DROP PROCEDURE IF EXISTS sp_addRecords3;
--enable_warnings

SET @@SESSION.max_sp_recursion_depth = @session_max_recursion_depth;