public void testScrub()
{
StringTheory theory = new StringTheory("%555-33-0000*");
theory.Filter("-.$%*");
Assert.True(theory.Equals("555330000"), "Scrub(1) failed: " + theory);
theory.Renew("%555-33-0000*");
theory.Filter("-");
Assert.True(theory.Equals("%555330000*"), "Scrub(2) failed: " + theory);
}