Rollback transactions from multiple Datasource in Grails Integration Tests Prior to Grails 2.3.x, and with Grails 1.3.x on datasources plugin Fixed in 2.3.x

Datasources.groovy

/*
 Sample Datasources.groovy file for datasources 0.5 plugin with grails 1.3.x
 */

datasources = {
  datasource(name: 'db2') {
		domainClasses([com.sheetsj.domain.db2.MyObj, com.sheetsj.domain.db2.MyObj2])
		services(['myDb2Stuff'])
		driverClassName('com.ibm.db2.jcc.DB2Driver')
		dialect(org.hibernate.dialect.DB2Dialect)
		url('jdbc:db2://server:port/dbname:currentSchema=schemaName')
		username('jdbcUser')
		password('jdbcPass')
		logSql(true)
				
		hibernate {
			cache {
				use_second_level_cache(false)
				use_query_cache(false)
			}
		}
	}
}

GrailsMultipleDatasourcesWithRollbackIntTests.groovy

/*
Grails will not rollback transactions on secondary datasources in integration tests
on versions prior to version 2.3.x. (http://jira.grails.org/browse/GRAILS-9771)

But using the solution from the JIRA ticket, you can get this to work on
Grails < 2.3.x, and on Grails 1.3.x with the datasources plugin
*/

class GrailsMultipleDatasourcesWithRollbackIntTests extends GroovyTestCase {
  
  /**
   * for a second datasource named 'db2', Grails creates this transactionManager_db2
   */
  def transactionManager_db2
  def transactionStatus
  
  /** Just some service that uses the db2 datasource */
  def myDb2StuffService
	
	void setUp() {
		super.setUp()
		transactionStatus = transactionManager_db2.getTransaction(new DefaultTransactionDefinition())
	}
	
	void tearDown() {
		super.tearDown()
		transactionManager_db2.rollback(transactionStatus)
	}

  void testSomeServiceMethod() {
    //Do your test and it will now rollback
  }
}