When you get a test failure it is very difficult to determine exactly which of the multiple events was the one with the mismatch, so compare a string version and then IDE's can give meaningful diff support

git-svn-id: https://svn.apache.org/repos/asf/maven/doxia/doxia/trunk@1572528 13f79535-47bb-0310-9956-ffa450edef68