@Test
public void getConfigEntries() throws Exception {

    Map<String,PropertyValue> config = new HashMap<>();
    for(int i=0;i<10;i++) {
        config.put("key-"+i, new PropertyValue( "key-"+i, "value-"+i));
    }
    PropertyValue val = new PropertyValue( "getConfigEntries", "v");
    FilterContext ctx = new FilterContext(val, config, ConfigurationContext.EMPTY);
    assertThat(ctx.getConfigEntries()).isEqualTo(config);
    assertThat(config != ctx.getConfigEntries()).isTrue();
}