@Test
public void containsReturnsFalseIfElementNotPresentInGivenMap() {

    // given
    Map<CharSequence, ItemSource> map = createDefaultTestMap();
    KeySequenceConfigRepository repository = new KeySequenceConfigRepository(map, DEFAULT_TEST_KEY_SEQUENCE_EXPIRY);
    // when
    boolean result = repository.contains(UUID.randomUUID().toString());
    // then
    assertFalse(result);
}