@Test
    void configureWithEmptySet() throws Exception {
        Mapping config = new Mapping();
        ConfiguratorRegistry registry = ConfiguratorRegistry.get();
        final Bar configured =
                (Bar) registry.lookupOrFail(Bar.class).configure(config, new ConfigurationContext(registry));
        Set<String> strings = configured.getStrings();
        assertEquals(0, strings.size());
    }
@author <a href="mailto:nicolas.deloof@gmail.com">Nicolas De Loof</a>
test-harness/src/test/java/io/jenkins/plugins/casc/impl/configurators/DataBoundConfiguratorTest.java