public void testQuote()
 {
     string str = "\"abcdef\"";
     StringTheory theory = new StringTheory("abcdef");
     theory.Quote();
     Assert.True(str.Equals(theory.ToString()), "str 1 doesn't match the comparison string!");
     str = "***abcdef***";
     theory = new StringTheory("abcdef");
     theory.Quote("***");
     Assert.True(str.Equals(theory.ToString()), "str 2 doesn't match the comparison string!");
     str = "|abcdef|";
     theory = new StringTheory("abcdef");
     theory.Quote('|');
     Assert.True(str.Equals(theory.ToString()), "str 3 doesn't match the comparison string!");
 }