[Res]how to do an assert to test the count of a list returnd

String xml = '''<a>
    <b>b1</b>
    <b>b2</b>
    <b>b3</b>
    <b>b4</b>
   </a>'''

def groovyUtils = new com.eviware.soapui.support.GroovyUtils(context)
def holder = groovyUtils.getXmlHolder(xml)

Integer expectedSize = 4

assert holder.getNodeValues("//a/b").size() == expectedSize

/*
To get whole Response of your requested step, use this:
def holder = groovyUtils.getXmlHolder("Your_Test_StepT#ResponseAsXml")
*/