Problem Solved,
i wrote a groovy script that remove elements
//read Biztalk response
def policy = context.expand( '${Get-Data....}' )
def groovyUtils = new com.eviware.soapui.support.GroovyUtils(context)
def policyBT = groovyUtils.getXmlHolder( policy)
//remove unCompare Elements
policyBT.removeDomNodes("//RetrieveTime")
policyBT.removeDomNodes("//RetrospectiveTime")
//read DataPower response
def policyD = context.expand( '${Get-Data....}' )
def policyDP = groovyUtils.getXmlHolder( policyD)
//remove unCompare Elements
policyDP.removeDomNodes("//RetrieveTime")
policyDP.removeDomNodes("//RetrospectiveTime")
//export fixxed response XML value into TestCase properites for comparing in the Next Step
def policyBTstr = policyBT.prettyXml
def policyDPstr = policyDP.prettyXml
log.info policyDPstr
testRunner.testCase.setPropertyValue('BT-h-response', policyBTstr)
testRunner.testCase.setPropertyValue('DP-h-response',policyDPstr)
After That I'm running an Assertion step with XPath Match.
my only problem now is that in project suit i would expect Details but i see only:
[Equals] Simple Equals FAILED
[XPath Match] XPath Match FAILED