Custom Logging of assert statements from Groovy script

Hi -- Yes, I'd seen that post, and that's where I learned about setting up the custom logger. What I was missing was pretty simple -- how to get groovy assert results into that file. I needed to put the assert into a try/catch, like this:

import org.apache.log4j.Logger 
def fileLogger = Logger.getLogger("ASSERTION.SCRIPT.LOGGER");

def String expected = "Some Text"
def String actual = "Some Unexpected Text"

assertVals(actual, expected, fileLogger)

def assertVals(String actual, String expected, Logger logger) {
	if (expected != null) {
		try {
			assert expected == actual 
		} 
		catch(AssertionError e) {
			logger.info(e.getMessage())
		}
	}
}

Two notes:

• If you want the "power assert" formatting in the file, leave it as above. If you want a more standard version on a single line, add the optional ": 'This is the result'" part after the assert statement. Not sure why that is, but it works.
• Because the "power assert formatting is sensitive, I turned off the formatting in the layout of the appender.

         <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%m%n"/>
        </layout>

Of course, when you do that you don't get useful stuff like date/time. 

Thanks,