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################# mysql-test\t\tx_isolation_basic.test ######################## # # # Variable Name: tx_isolation # # Scope: GLOBAL | SESSION # # Access Type: Dynamic # # Data Type: enumeration # # Default Value: REPEATABLE-READ # # Valid Values: READ-UNCOMMITTED, READCOMMITTED, REPEATABLE-READ,SERIALIZABLE # # # # # # Creation Date: 2008-02-07 # # Author: Rizwan # # # # Description: Test Cases of Dynamic System Variable tx_isolation # # 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/5.1/en/ # # server-system-variables.html # # # ############################################################################### --source include/load_sysvars.inc ######################################################################## # START OF tx_isolation TESTS # ######################################################################## ######################################################################### # Saving initial value of tx_isolation in a temporary variable # ######################################################################### SET @global_start_value = @@global.tx_isolation; SELECT @global_start_value; SET @session_start_value = @@session.tx_isolation; SELECT @session_start_value; --echo '#--------------------FN_DYNVARS_183_01------------------------#' #################################################################### # Display the DEFAULT value of tx_isolation # #################################################################### SET @@global.tx_isolation = 'READ-UNCOMMITTED'; SET @@global.tx_isolation = DEFAULT; SELECT @@global.tx_isolation; SET @@session.tx_isolation = DEFAULT; SELECT @@session.tx_isolation; --echo '#---------------------FN_DYNVARS_183_02-------------------------#' ######################################################### # Check if NULL or empty value is accepeted # ######################################################### --Error ER_WRONG_VALUE_FOR_VAR SET @@global.tx_isolation = NULL; --Error ER_WRONG_VALUE_FOR_VAR SET @@global.tx_isolation = ''; --Error ER_WRONG_VALUE_FOR_VAR SET @@session.tx_isolation = NULL; --Error ER_WRONG_VALUE_FOR_VAR SET @@session.tx_isolation = ''; --echo '#--------------------FN_DYNVARS_183_03------------------------#' ##################################################################### # Change the value of tx_isolation to a valid value # ##################################################################### SET @@global.tx_isolation = 'READ-UNCOMMITTED'; SELECT @@global.tx_isolation; SET @@global.tx_isolation = 'read-COMMITTED'; SELECT @@global.tx_isolation; SET @@global.tx_isolation = 'REPEATABLE-READ'; SELECT @@global.tx_isolation; SET @@global.tx_isolation = 'SERIALIZable'; SELECT @@global.tx_isolation; SET @@session.tx_isolation = 'READ-UNCOMMITTED'; SELECT @@session.tx_isolation; SET @@session.tx_isolation = 'READ-COMMITTED'; SELECT @@session.tx_isolation; SET @@session.tx_isolation = 'REPEATABLE-READ'; SELECT @@session.tx_isolation; SET @@session.tx_isolation = 'serializable'; SELECT @@session.tx_isolation; --echo '#--------------------FN_DYNVARS_183_04-------------------------#' ####################################################################### # Change the value of tx_isolation to invalid value # ####################################################################### # for global scope --Error ER_WRONG_VALUE_FOR_VAR SET @@global.tx_isolation = -1; --Error ER_WRONG_VALUE_FOR_VAR SET @@global.tx_isolation = READUNCOMMITTED; --Error ER_WRONG_VALUE_FOR_VAR SET @@global.tx_isolation = 'REPEATABLE'; --Error ER_WRONG_VALUE_FOR_VAR SET @@global.tx_isolation = OFF; --Error ER_WRONG_VALUE_FOR_VAR SET @@global.tx_isolation = ON; --Error ER_WRONG_VALUE_FOR_VAR SET @@global.tx_isolation = 'NON-SERIALIZABLE'; # for session scope --Error ER_WRONG_VALUE_FOR_VAR SET @@tx_isolation = -1; --Error ER_WRONG_VALUE_FOR_VAR SET @@tx_isolation = READUNCOMMITTED; --Error ER_WRONG_VALUE_FOR_VAR SET @@tx_isolation = 'REPEATABLE'; --Error ER_WRONG_VALUE_FOR_VAR SET @@tx_isolation = 'NONE'; --Error ER_WRONG_VALUE_FOR_VAR SET @@tx_isolation = 'ALL'; --echo '#-------------------FN_DYNVARS_183_05----------------------------#' ######################################################################### # Check if the value in session Table matches value in variable # ######################################################################### --disable_warnings SELECT @@session.tx_isolation = VARIABLE_VALUE FROM INFORMATION_SCHEMA.SESSION_VARIABLES WHERE VARIABLE_NAME='tx_isolation'; --enable_warnings --echo '#----------------------FN_DYNVARS_183_06------------------------#' ######################################################################### # Check if the value in GLOBAL Table matches value in variable # ######################################################################### --disable_warnings SELECT @@global.tx_isolation = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='tx_isolation'; --enable_warnings --echo '#---------------------FN_DYNVARS_183_07-------------------------#' ################################################################### # Check if numbers can be used on variable # ################################################################### # test if variable accepts 0,1,2 SET @@global.tx_isolation = 0; SELECT @@global.tx_isolation; SET @@global.tx_isolation = 1; SELECT @@global.tx_isolation; SET @@global.tx_isolation = 2; SELECT @@global.tx_isolation; SET @@global.tx_isolation = 3; SELECT @@global.tx_isolation; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.tx_isolation = 0.4; --echo '#---------------------FN_DYNVARS_183_08----------------------#' ################################################################### # Check if TRUE and FALSE values can be used on variable # ################################################################### SET @@global.tx_isolation = TRUE; SELECT @@global.tx_isolation; SET @@global.tx_isolation = FALSE; SELECT @@global.tx_isolation; --echo '#---------------------FN_DYNVARS_183_09----------------------#' ######################################################################## # Check if tx_isolation can be accessed with and without @@ sign # ######################################################################## SET tx_isolation = 'REPEATABLE-READ'; --Error ER_PARSE_ERROR SET session.tx_isolation = 'REPEATABLE-READ'; --Error ER_PARSE_ERROR SET global.tx_isolation = 'REPEATABLE-READ'; #using SET SESSION|GLOBAL syntax SET session tx_isolation = 'REPEATABLE-READ'; SELECT @@tx_isolation; SET global tx_isolation = 'REPEATABLE-READ'; SELECT @@global.tx_isolation; ############################## # Restore initial value # ############################## SET @@global.tx_isolation = @global_start_value; SELECT @@global.tx_isolation; SET @@session.tx_isolation = @session_start_value; SELECT @@session.tx_isolation; #################################################################### # END OF tx_isolation TESTS # ####################################################################