@Test
public void testNotString() {

  assertEquals(MISMATCH, Patterns.notString("abc").match("abcd", 0, 4));
  assertEquals(MISMATCH, Patterns.notString("").match("abc", 0, 0));
  assertEquals(1, Patterns.notString("abc").match("ABC", 0, 3));
  assertEquals(MISMATCH, Patterns.notString("abc").match("abc", 0, 0));
}