Sets the filter for the test cases to include in the plot/table by name. Only those
        test cases that include this text are included in plots, tables etc.

def do_filter(self, arg):
        """Sets the filter for the test cases to include in the plot/table by name. Only those
        test cases that include this text are included in plots, tables etc."""
        if arg == "list":
            msg.info("TEST CASE FILTERS")
            for f in self.curargs["tfilter"]:
                if f == "*":
                    msg.info("  * (default, matches all)")
                else:
                    msg.info("  " + f)
        elif arg not in self.curargs["tfilter"]:
            self.curargs["tfilter"].append(arg)
            self.do_filter("list")