@Test
public void testTrimAllWhitespace() throws Exception {
assertEquals("", StringUtils.trimAllWhitespace(""));
assertEquals("", StringUtils.trimAllWhitespace(" "));
assertEquals("", StringUtils.trimAllWhitespace("\t"));
assertEquals("a", StringUtils.trimAllWhitespace(" a"));
assertEquals("a", StringUtils.trimAllWhitespace("a "));
assertEquals("a", StringUtils.trimAllWhitespace(" a "));
assertEquals("ab", StringUtils.trimAllWhitespace(" a b "));
assertEquals("abc", StringUtils.trimAllWhitespace(" a b c "));
}
