@Test
void appendWithLessArguments() {

    var builder = new StringBuilder();
    filter.append(builder, "message-{}-{}", 1);
    assertThat(builder.toString()).isEqualTo("message-1-{}");
    builder = new StringBuilder();
    filter.append(builder, "message-{}-{}");
    assertThat(builder.toString()).isEqualTo("message-{}-{}");
}