String turkishLowerCase = "ı will use turkish casıng";
TokenFilterFactory factory = tokenFilterFactory("ICUCollationKey",
"locale", "tr",
"strength", "primary",
"decomposition", "canonical");
TokenStream tsUpper = factory.create(
new KeywordTokenizer(new StringReader(turkishUpperCase)));
TokenStream tsLower = factory.create(
new KeywordTokenizer(new StringReader(turkishLowerCase)));
assertCollatesToSame(tsUpper, tsLower);
}