buildResults.getMessages().size() );
//Perform incremental build
buildChangeListener.updateResource( resourcePath );
final IncrementalBuildResults incrementalBuildResults = buildResultsObserver.getIncrementalBuildResults();
assertNotNull( incrementalBuildResults );
assertEquals( 0,
incrementalBuildResults.getAddedMessages().size() );
assertEquals( 0,
incrementalBuildResults.getRemovedMessages().size() );
}