VacuumImpl extends BaseFinishedStatement implements Vacuum { @Override public void prependTo(@NotNull final RawSqlBuilder builder) { builder.prepend("VACUUM"); }  @Override void prependTo(@NotNull final RawSqlBuilder builder); @Nullable @Override SqlPart previous();  }
@Test public void prependTo_prependsProperSql() { VacuumImpl vacuum = new VacuumImpl(); RawSqlBuilder builder = new RawSqlBuilderImpl(); vacuum.prependTo(builder); assertThat(builder.toString(), is("VACUUM")); }