@Test
void should_be_thrown_EVCacheInvalidKeyException_when_key_contain_whitespace_with_deleteWhitespaceKey() {

    cache = new EVCacheImpl("name", source, true, 10, true);
    assertThatThrownBy(() -> cache.lookup("   ")).isExactlyInstanceOf(EVCacheInvalidKeyException.class)
                                                 .hasMessage("Deleted whitespace key is empty");
}