michael@0: function run_test() {
michael@0:     do_check_true("@mozilla.org/layout-debug/regressiontester;1" in
michael@0: 		  Components.classes);
michael@0:     do_check_true("@mozilla.org/layout-debug/layout-debuggingtools;1" in
michael@0: 		  Components.classes);
michael@0:     do_check_true("@mozilla.org/commandlinehandler/general-startup;1?type=layoutdebug" in
michael@0: 		  Components.classes);    
michael@0: }