public Map<String, Object> configStorageTopicSettings() {
        return topicSettings(CONFIG_STORAGE_PREFIX);
    }
@Test
    public void shouldRemoveCompactionFromConfigTopicSettings() {
        Map<String, String> expectedTopicSettings = new HashMap<>();
        expectedTopicSettings.put("foo", "foo value");
        expectedTopicSettings.put("bar", "bar value");
        expectedTopicSettings.put("baz.bim", "100");
        Map<String, String> topicSettings = new HashMap<>(expectedTopicSettings);
        topicSettings.put("cleanup.policy", "something-else");
        topicSettings.put("partitions", "3");

        Map<String, String> settings = configs();
        topicSettings.forEach((k, v) -> settings.put(DistributedConfig.CONFIG_STORAGE_PREFIX + k, v));
        DistributedConfig config = new DistributedConfig(settings);
        Map<String, Object> actual = config.configStorageTopicSettings();
        assertEquals(expectedTopicSettings, actual);
        assertNotEquals(topicSettings, actual);
    }