@Test
    public void testAZ() {
        {
            String lowercase = Lowercase.toLowerCase("ABCDEFGHIJKLMNOPQRSTUVWXYZ");
            assertEquals("abcdefghijklmnopqrstuvwxyz", lowercase);
        }
        {
            String lowercase = Lowercase.toLowerCase("abcdefghijklmnopqrstuvwxyz");
            assertEquals("abcdefghijklmnopqrstuvwxyz", lowercase);
        }
        {
            String lowercase = Lowercase.toLowerCase("AbCDEfGHIJklmnoPQRStuvwXyz");
            assertEquals("abcdefghijklmnopqrstuvwxyz", lowercase);
        }

        {
            String lowercase = Lowercase.toLowerCase("@+#");
            assertEquals("@+#", lowercase);
        }
        {
            String lowercase = Lowercase.toLowerCase("[]");
            assertEquals("[]", lowercase);
        }
        {
            String lowercase = Lowercase.toLowerCase("{}");
            assertEquals("{}", lowercase);
        }
        {
            String lowercase = Lowercase.toLowerCase("\u00cd\u00f4");
            assertEquals("\u00ed\u00f4", lowercase);
        }
    }
@author <a href="mailto:einarmr@yahoo-inc.com">Einar M R Rosenvinge</a>
@since 5.1.14
vespajlib/src/test/java/com/yahoo/text/LowercaseTestCase.java