public static Builder builder() {
    return new Builder();
  }
@Test
  public void should_fail_with_IAE_if_query_is_one_character_long() {
    assertThatThrownBy(() -> SuggestionQuery.builder().setQuery("a"))
      .isInstanceOf(IllegalArgumentException.class)
      .hasMessageContaining("Query must be at least two characters long");
  }