void () { assertEquals(StringUtil.trim((CharSequence)"").toString(), ""); assertEquals(StringUtil.trim((CharSequence)" ").toString(), ""); assertEquals(StringUtil.trim((CharSequence)" \n\t\r").toString(), ""); assertEquals(StringUtil.trim((CharSequence)"a").toString(), "a"); assertEquals(StringUtil.trim((CharSequence)" a").toString(), "a"); assertEquals(StringUtil.trim((CharSequence)"bc ").toString(), "bc"); assertEquals(StringUtil.trim((CharSequence)" b a c ").toString(), "b a c"); }