code: @Test public void should_prepare_update_fields_with_clustered_id_ps() throws Exception {
    PropertyMeta idMeta=completeBean(Void.class,Long.class).field("id").compNames("id","a","b").type(PropertyType.EMBEDDED_ID).build();
    PropertyMeta nameMeta=completeBean(Void.class,String.class).field("name").type(PropertyType.SIMPLE).build();
    PropertyMeta ageMeta=completeBean(Void.class,String.class).field("age").type(PropertyType.SIMPLE).build();
    EntityMeta meta=new EntityMeta();
    meta.setTableName("table");
    meta.setIdMeta(idMeta);
    when(session.prepare(queryCaptor.capture())).thenReturn(ps);
    PreparedStatement actual=generator.prepareUpdateFields(session,meta,asList(nameMeta,ageMeta),noOptions());
    assertThat(actual).isSameAs(ps);
    assertThat(queryCaptor.getValue()).isEqualTo("UPDATE table USING TTL :ttl SET name=:name,age=:age WHERE id=:id AND a=:a AND b=:b;");
  }
  