@Test
public void testContains() {

  assertFalse(StringUtils.contains("charAt", "cA"));
  assertFalse(StringUtils.contains("codePointAt", "cA"));
  assertFalse(StringUtils.contains("codePointAt", "codPoA"));
  assertTrue(StringUtils.contains("contains", "con"));
  assertFalse(StringUtils.contains("istrue", "iT"));
  assertTrue(StringUtils.contains("isTrue", "isT"));
  assertFalse(StringUtils.contains("aVeryLongMethodName", "aVLM"));
  assertFalse(StringUtils.contains("aVeryLongMethodName", "aVLMN"));
  assertTrue(StringUtils.contains("averylongmethodnameonlylowercase", "averyl"));
  assertTrue(StringUtils.contains("charAt", ""));
  assertFalse(StringUtils.contains("acceptJsonFormatterVisitor", "aJFV"));
  assertFalse(StringUtils.contains("saveOperationChannel", "sOpC"));
  assertTrue(StringUtils.contains("CHARAT", ""));
  assertTrue(StringUtils.contains("acceptCase", "a"));
  assertFalse(StringUtils.contains("StringUtils", "sU"));
  assertTrue(StringUtils.contains("AbstractConsumerConnection", "SU"));
}