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Current File : /www/server/mysql/src/mysql-test/suite/sys_vars/t/super_read_only_basic.test
############## mysql-test\t\super_read_only_basic.test ########################
#                                                                             #
# Variable Name: super_read_only                                              #
# Scope: GLOBAL                                                               #
# Access Type: Dynamic                                                        #
# Data Type: BOOLEAN                                                          #
# Default Value: OFF                                                          #
#Values:      ON, OFF                                                         #
#                                                                             #
#                                                                             #
# Creation Date: 2015-05-20                                                   #
# Author:  Todd Farmer                                                        #
#                                                                             #
# Description: Test Cases of Dynamic System Variable super_read_only          #
#              that checks the behavior of this variable in the following ways#
#              * Default Value                                                #
#              * Valid & Invalid values                                       #
#              * Scope & Access method                                        #
#              * Data Integrity                                               #
#                                                                             #
# Reference: http://dev.mysql.com/doc/refman/5.7/en/                          #
#  server-system-variables.html                                               #
#                                                                             #
###############################################################################

--source include/load_sysvars.inc


######################################################################
#                    START OF super_read_only TESTS                  #
######################################################################


################################################################
# Saving initial values of super_read_only and read_only       #
# variables in a temporary variable                            #
################################################################

SET @start_read_only = @@global.read_only;
SET @start_super_read_only = @@global.super_read_only;
SELECT @start_read_only, @start_super_read_only;


--echo '#--------------------FN_DYNVARS_139_01------------------------#'
################################################################
#              Display the DEFAULT value of super_read_only    #
################################################################

SET @@global.super_read_only = 1;
SET @@global.super_read_only = DEFAULT;
SELECT @@global.super_read_only;


--echo '#---------------------FN_DYNVARS_139_02-------------------------#'
############################################### 
#     Verify default value of variable        #
############################################### 

SET @@global.super_read_only = @start_super_read_only;
SELECT @@global.super_read_only = 0;


--echo '#--------------------FN_DYNVARS_139_03------------------------#'
#################################################################
#        Change the value of super_read_only to a valid value   #
#################################################################

SET @@global.super_read_only = 0;
SELECT @@global.super_read_only;
SET @@global.super_read_only = 1;
SELECT @@global.super_read_only;
SET @@global.super_read_only = TRUE;
SELECT @@global.super_read_only;
SET @@global.super_read_only = FALSE;
SELECT @@global.super_read_only;
SET @@global.super_read_only = ON;
SELECT @@global.super_read_only;
SET @@global.super_read_only = OFF;
SELECT @@global.super_read_only;

--echo '#--------------------FN_DYNVARS_139_04-------------------------#'
####################################################################
#         Change the value of super_read_only to invalid value     #
####################################################################

--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.super_read_only = -1;
SELECT @@global.super_read_only;
--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.super_read_only = 4294967296;
SELECT @@global.super_read_only;
--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.super_read_only = 10240022115;
SELECT @@global.super_read_only;
--Error ER_WRONG_TYPE_FOR_VAR
SET @@global.super_read_only = 10000.01;
SELECT @@global.super_read_only;
--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.super_read_only = -1024;
SELECT @@global.super_read_only;
--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.super_read_only = 42949672950;
SELECT @@global.super_read_only;

--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.super_read_only = 'test';
SELECT @@global.super_read_only;


--echo '#-------------------FN_DYNVARS_139_05----------------------------#'
####################################################################
#       Test if accessing session super_read_only gives error      #
####################################################################

--Error ER_GLOBAL_VARIABLE
SET @@session.super_read_only = 0;
SELECT @@super_read_only;


--echo '#----------------------FN_DYNVARS_139_06------------------------#'
############################################################################## 
# Check if the value in GLOBAL & SESSION Tables matches values in variable   #
##############################################################################

--disable_warnings
SELECT IF(@@global.super_read_only, "ON", "OFF") = VARIABLE_VALUE 
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
WHERE VARIABLE_NAME='super_read_only';

SELECT IF(@@read_only, "ON", "OFF") = VARIABLE_VALUE 
FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
WHERE VARIABLE_NAME='super_read_only';
--enable_warnings


--echo '#---------------------FN_DYNVARS_139_07----------------------#'
########################################################################################################
#    Check if accessing variable with SESSION,LOCAL and without SCOPE points to same session variable  #
########################################################################################################

SET @@global.super_read_only = 1;
SELECT @@super_read_only = @@global.super_read_only;


--echo '#---------------------FN_DYNVARS_139_08----------------------#'
#########################################################################
#   Check if super_read_only can be accessed with and without @@ sign   #
#########################################################################

--Error ER_GLOBAL_VARIABLE
SET super_read_only = 1;
SELECT @@super_read_only;
--Error ER_PARSE_ERROR
SET local.super_read_only = 1;
--Error ER_UNKNOWN_TABLE
SELECT local.super_read_only;
--Error ER_PARSE_ERROR
SET global.super_read_only = 1;
--Error ER_UNKNOWN_TABLE
SELECT global.super_read_only;
--Error ER_BAD_FIELD_ERROR
SELECT super_read_only = @@session.super_read_only;


##############################  
#   Restore initial value    #
##############################

SET @@global.read_only = @start_read_only;
SET @@global.super_read_only = @start_super_read_only;

SELECT @@global.super_read_only;
SELECT @@global.read_only;


#######################################################################
#              END OF super_read_only TESTS                           #
#######################################################################


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