ConfigPropertyFilter configPropertyFilter() {
        return getConfiguredInstance(CONFIG_PROPERTY_FILTER_CLASS, ConfigPropertyFilter.class);
    }
@Test
    public void testConfigPropertyMatching() {
        MirrorSourceConfig config = new MirrorSourceConfig(
                makeProps("config.properties.exclude", "prop2"));
        assertTrue(config.configPropertyFilter().shouldReplicateConfigProperty("prop1"),
                "config.properties.exclude incorrectly excluded prop1");
        assertFalse(config.configPropertyFilter().shouldReplicateConfigProperty("prop2"),
                "config.properties.exclude incorrectly included prop2");
    }