@Test
void append() {

    var param = new FieldLogParam("SessionId", "value");
    var builder = new StringBuilder();
    param.append(builder, Set.of("SessionId"), 1000);
    assertThat(builder.toString()).isNotEqualTo("value");
    builder = new StringBuilder();
    param.append(builder, Set.of(), 1000);
    assertThat(builder.toString()).isEqualTo("value");
}