I ran into this too! Pretty sure its a grails bug... I submitted a jira and a patch.
The error is thrown because the code in grails.test.spock.IntegrationSpec does not check for interceptor.isTransactional()
before calling interceptor.destroy()
def cleanup() {
perMethodRequestEnvironmentInterceptor?.destroy()
perMethodTransactionInterceptor?.destroy() //breaks :(
}
...
private GrailsTestTransactionInterceptor initTransaction() {
def interceptor = new GrailsTestTransactionInterceptor(applicationContext)
if (interceptor.isTransactional(this)) interceptor.init() //also need for destroy()
interceptor
}
My fix was to add this code:
def cleanup() {
perMethodRequestEnvironmentInterceptor?.destroy()
destroyTransaction(perMethodTransactionInterceptor)
}
...
private void destroyTransaction(GrailsTestTransactionInterceptor interceptor){
if (interceptor?.isTransactional(this)) interceptor.destroy()
}
To work around for now, you can just create your own com.myname.IntegrationSpec with the patched code and extend that instead of grails.test.spock.IntegrationSpec. Not ideal... but it works :)